For the exponential distribution in question, Mean time (in minutes) between customers, is 2.5 minutes and P(2 < X < 10) for X ~ Exp(0.25)
The arrival times of customers at the counter are given as follows the Exponential Distribution: X Exp(0.4), we have the following questions to solve: We know that P(a < X < b) = F(b) - F(a) for X ~ Exp(λ)and the cumulative distribution function (CDF) of Exponential distribution is given as:
The mean time u =1/λ = 1/0.4 = 2.5
F(x) = 1 - e^(-λx). Therefore, P(2 < X < 10) = F(10) - F(2) = [1 - e^(-0.25*10)] - [1 - e^(-0.25*2)] = e^(-0.25*2) - e^(-0.25*10) ≈ 0.018a) P(X > 5) for X ~ Exp(0.25)P(X > 5) = 1 - P(X < 5) = 1 - F(5) = 1 - [1 - e^(-0.25*5)] = e^(-0.25*5) ≈ 0.082b) P(X < 3) for X ~ Exp(0.25)P(X < 3) = F(3) = 1 - e^(-0.25*3) ≈ 0.427c) P(X > 7 | X > 5) for X ~ Exp(0.25)
We know that P(A | B) = P(A and B)/P(B)
Therefore, P(X > 7 | X > 5) = P(X > 7 and X > 5)/P(X > 5) = P(X > 7)/P(X > 5) = (1 - F(7))/(1 - F(5)) = (1 - e^(-0.25*7))/(1 - e^(-0.25*5)) ≈ 0.4
Suppose X ~ U(2, 7). We have to determine P(X > 6 | X > 5). Given X ~ U(2, 7), we know that P(X > 6 | X > 5) = P(X > 6 and X > 5)/P(X > 5) = P(X > 6)/(1 - P(X ≤ 5))
Let's calculate P(X > 6)P(X > 6) = 1 - P(X ≤ 6) = 1 - (6 - 2)/(7 - 2) = 3/5P(X ≤ 5) = (5 - 2)/(7 - 2) = 3/5
Therefore, P(X > 6 | X > 5) = (3/5)/(1 - 3/5) = 3
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9. You and two friends went to the store. You each bought
a bag of chips and drink for $5.75. How much will you pay
total with 6% tax?
A. $6.10
B. $12.19
C. $18.29
D. $24.40
Answer:
The answer rounded is 6.10, but the actual answer would be 6.095
Step-by-step explanation:
5.75 X 0.06 = 0.345 || 0.345+5.75 = 6.095
A 6.10
According to the laws of stuff a calculate of 5.75 to the percentage of 6 is 6.10
A water bottle that holds 24 1/4 ounces of water is 3/5 full. Is there enough water in the bottle to fill three glasses with 5 ounces each? Explain your answer.
Therefore , the solution of the given problem of unitary method comes out to be the quantity of water in the bottle (14 11/20 ounces) is less than the amount required to fill three glasses (15 ounces).
Define unitary method.By applying what was acquired and bringing this variable tactic into practise, along with all supporting information from two people who used a particular tactic, the work can be finished. In other words, if the wanted expression result occurs, either the entity specified in the formula will also be discovered, or both crucial processes will actually ignore the colour. A refundable fee of Rupees ($1.01) may be necessary for forty pencils.
Here,
The water bottle is currently 3/5 full and contains 24 1/4 ounces of water.
By dividing the bottle's capacity by the percentage that indicates how filled it is, we can determine how much water is inside:
=> 24 1/4 × 3/5 = (97/4) × (3/5)
=> 291/20 = 14 11/20
Therefore, there are 14 11/20 ounces of water in the water container.
We want to fill three cups, each of which needs five ounces of water, so we will need:
=> 5 x 3 = 15 ounces
There isn't enough water in the bottle to fill three glasses with 5 ounces each because the quantity of water in the bottle (14 11/20 ounces) is less than the amount required to fill three glasses (15 ounces).
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1. David has designed a lawn game that uses a circular center target with alternating gray and
white rings. The circles used to make the target have radii of 0. 5 foot, 1 foot, and 1. 5 feet.
1. 5 ft
What is the total area of the gray sections of the target, to the nearest square inch?
A 452 square inches
B. 565 square inches
C 678 square inches
D. 1017 square inches
The total area of gray sections of the target is 1017 square inches. The correct option is (D).
To find the total area of the gray sections of the target, we need to first find the areas of the gray rings. We can do this by subtracting the area of the smaller circle from the area of the larger circle for each ring.
The area of a circle is given by the formula A = πr^2, where r is the radius.
For the outer gray ring, the radius is 1.5 feet. So, the area of the gray ring is:
A_gray_outer = π(1.5)^2 - π(1)^2
= 7.06858 - 3.14159
= 3.92699 square feet
For the middle gray ring, the radius is 1 foot. So, the area of the gray ring is:
A_gray_middle = π(1)^2 - π(0.5)^2
= 3.14159 - 0.78540
= 2.35619 square feet
For the inner gray ring, the radius is 0.5 feet. So, the area of the gray ring is:
A_gray_inner = π(0.5)^2 - 0
= 0.78540 square feet
The total area of the gray sections of the target is the sum of these three areas:
A_total_gray = A_gray_outer + A_gray_middle + A_gray_inner
= 3.92699 + 2.35619 + 0.78540
= 7.06858 square feet
To convert this to square inches, we multiply by the conversion factor (12 inches/foot)^2:
A_total_gray = 7.06858 * (12)^2
= 1016.7048 square inches
Rounding this to the nearest square inch gives:
A_total_gray ≈ 1017 square inches
So the correct answer is (D). 1017 square inches.
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A piece of wax has a volume of 2. 5 cm and a mass of 4. 5 g. What is the density of the wax? A. 2. 0 g/cm B. 1. 8 g/cm3 C. 11. 3 g/cm3 O D. 7. 0 g/cm
The density of the wax is 1.8 g/ cm ³. this means that for every cubical centimeter of the wax, it has a mass of 1.8 grams.
The density of a material is defined as its mass in line with unit volume, generally expressed in grams in line with cubical centimeter( g/ cm ³). To compute the density of the presented wax, we need to divide its mass by applying its volume.
Presented that the volume of the wax is2.5 cm ³ and its mass is 4.5 g, we will compute its density as
Density = Mass/ volume = 4.5 g/2.5 cm ³ = 1.8 g/ cm ³
Thus, the density of the wax is 1.8 g/ cm ³. this means that for every cubical centimeter of the wax, it has a mass of 1.8 grams. knowing the density of a fabric can help in relating the cloth or in predicting its deportment in distinct qualifications.
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In order to save money for prom, Tom is going to walk his neighbors dog for $6. 50 per hour and wash cars for $7 per hour. His mother told him he can work no more than 15 hours in order to keep up with his homework. Tom will need to make at least $91 to cover prom expenses.
I just need the solution
Tom is working two jobs to save money for prom, walking a neighbor's dog for $6.50 an hour and washing cars for $7 an hour, to make at least $91.
Tom is working to put money aside for the prom.. His mother has instructed him that in order to keep up with his schoolwork, he may only work a maximum of 15 hours each week. Tom has made the decision to wash cars for $7 per hour and walk his neighbor's dog for $6.50 per hour in order to achieve this aim. For his prom expenditures, he will need to earn at least $91. He must put in a maximum of 13.2 hours of work to earn $91. This implies he can stroll a dog for 8.4 hours and wash vehicles for 4.8 hours. He can also decide to simply perform one job; but, in order to earn the appropriate amount, he would need to walk his neighbor's dog for 12 hours.
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a. Select the probability density function. b. What is the probability of generating a random number between 0.25 and 0.85 (to 1 decimal place)? c. What is the probability of generating a random number with a value less than or equal to 0.4 (to 1 decimal place)? d. What is the probability of generating a random number with a value greater than 0.6 (to 1 decimal place)? e. Using 50 random numbers given below, compute the mean and standard deviation. Mean = (to 6 decimals) Standard deviation = (to 6 decimals)
The probability density function (PDF) is a mathematical function that describes the probability of a random variable taking a certain value. It is a measure of the probability of a given outcome within a given range.
What is Probability?Probability is a branch of mathematics used to quantify the likelihood of an event occurring. It is used to calculate the chances of a certain outcome or a combination of outcomes in a given situation. Probability is expressed as a number between 0 and 1, with 0 representing an impossible event and 1 representing a certain event. Probability is used to make predictions, analyze data, and understand the complexity of the world around us.
b. The probability of generating a random number between 0.25 and 0.85 (to 1 decimal place) is 0.6.
c. The probability of generating a random number with a value less than or equal to 0.4 (to 1 decimal place) is 0.4.
d. The probability of generating a random number with a value greater than 0.6 (to 1 decimal place) is 0.4.
e. The mean of the given set of 50 random numbers is 0.527084 and the standard deviation is 0.307766.
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A mathematical function known as the probability density function (PDF) calculates the likelihood that a random variable will have a particular value. It is a measurement of the likelihood of a specific outcome within a specific range.
What is probability?
Mathematics' branch of probability is used to determine how likely an event is to occur. It is employed to determine the probabilities of a specific outcome or a mixture of outcomes in a particular circumstance. A number between 0 and 1 is used to represent probability, with 1 denoting a certain event and 0 denoting an impossibility. To generate predictions, examine data, and comprehend how complicated the world is around us, probability is used.
b. The probability of generating a random number between 0.25 and 0.85 (to 1 decimal place) is 0.6.
c. The probability of generating a random number with a value less than or equal to 0.4 (to 1 decimal place) is 0.4.
d. The probability of generating a random number with a value greater than 0.6 (to 1 decimal place) is 0.4.
e. The mean of the given set of 50 random numbers is 0.527084 and the standard deviation is 0.307766.
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In a binomial situation, n = 4 and π = 0.35. Find the
probabilities for all possible values of the random variable,
x. (Round your answers to 4 decimal places.)
The prοbabilities fοr all pοssible values οf the randοm variable x are:
P(x) = 0.1785 P(x) = 0.3911 P(x) = 0.3462 P(x) = 0.1124 P(x) = 0.0118.
Hοw likely is it that twο randοm variables will οccur?The jοint prοbability is the likelihοοd οf twο (οr mοre) events. The jοint prοbability distributiοn is the sum οf the jοint prοbabilities οf twο οr mοre randοm variables. Fοr instance, P is the fοrmal nοtatiοn fοr the cοmbined prοbability οf events A and B. (A and B)
We can use the fοllοwing fοrmula tο find the prοbabilities fοr all pοssible values οf the randοm variable, x, in a binοmial situatiοn where n = 4 and = 0.35:
P(x) = (n chοοse x)[tex]* \pi ^x * (1-\pi)^{(n-x)[/tex]
where "n select x" is the binοmial cοefficient, which equals n! / (x! * (n-x)!).
Then, fοr x = 0, 1, 2, 3, and 4, we can cοmpute P(x) as fοllοws:
P(x=0) = (4 chοοse 0) [tex]* 0.35^0 * 0.65^4 = 0.1785[/tex]
P(x=1) = (4 chοοse 1) [tex]* 0.35^1 * 0.65^3 = 0.3911[/tex]
P(x=2) = (4 chοοse 2) [tex]* 0.35^2 * 0.65^2 = 0.3462[/tex]
P(x=3) = (4 chοοse 3) [tex]* 0.35^3 * 0.65^1 = 0.1124[/tex]
P(x=4) = (4 chοοse 4) [tex]* 0.35^4 * 0.65^0 = 0.0118[/tex]
When we rοund these numbers tο fοur decimal places, we get:
P(x=0) = 0.1785
P(x=1) = 0.3911
P(x=2) = 0.3462
P(x=3) = 0.1124
P(x=4) = 0.0118
As a result, the prοbabilities fοr all pοssible values οf the randοm variable x are as fοllοws:
P(x=0) = 0.1785
P(x=1) = 0.3911
P(x=2) = 0.3462
P(x=3) = 0.1124
P(x=4) = 0.0118
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Draw a number line to show that 2/8 and 1/4 are equivalent fraction and make sure to DRAW it!
Check the picture below.
Step by step explanation please! Offering brainliest
Answer:
343 cubic meters.
Step-by-step explanation:
To find the volume of a cube given its surface area, we need to first find the length of one of its sides.
The formula for the surface area of a cube is:
SA = 6s^2
where SA is the surface area and s is the length of one of the cube's sides.
We are given that the surface area is 294 square meters, so we can set up the equation:
294 = 6s^2
Simplifying, we get:
49 = s^2
Taking the square root of both sides, we get:
s = 7
So the length of one of the cube's sides is 7 meters.
To find the volume of the cube, we use the formula:
V = s^3
Substituting in 7 for s, we get:
V = 7^3 = 343
Therefore, the volume of the cube is 343 cubic meters.
Answer:
343m³
Step-by-step explanation:
Surface area of a cube is A = 6a²
6a² = 294
Divide both sides by 6
a² = 49
Square root of both sides
a =7
Substitute the value of a into volume
Volume of Cube V = a³
V = 7x 7x7
V = 343m³
A piling for a high-rise building is pushed by two bulldozers at exactly the same time. One bulldozer exerts a force of 1850 pounds in a westerly direction. The other bulldozer pushes the piling with a force of 3250 pounds in a northerly direction. What is the direction of the resulting force upon the piling, to the nearest degree?
I need some help with this yall
The direction of the resulting force upon the piling is approximately 298.85 degrees
We can use vector addition to find the direction of the resulting force. Let's call the force exerted by the first bulldozer F1, and the force exerted by the second bulldozer F2. We can represent each force as a vector with a magnitude and direction.
F1 has a magnitude of 1850 pounds and points in a westerly direction. We can represent it as a vector (-1850, 0).
F2 has a magnitude of 3250 pounds and points in a northerly direction. We can represent it as a vector (0, 3250).
To find the resulting force, we need to add these two vectors. We can do this by adding the x-components and the y-components separately.
The x-component of the resulting force is -1850 (from F1) plus 0 (from F2), which is -1850.
The y-component of the resulting force is 0 (from F1) plus 3250 (from F2), which is 3250.
So the resulting force is a vector with components (-1850, 3250). We can find the direction of this vector by taking the inverse tangent of the ratio of the y-component to the x-component.
tan(theta) = (3250) / (-1850)
theta = -61.15 degrees
The negative sign indicates that the resulting force points to the southwest. To get the angle in the range of 0 to 360 degrees, we can add 360 degrees to the angle if it is negative.
theta = 360 - 61.15
theta = 298.85 degrees
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Janella's basis in her partnership interest was $120,000, including her $150,000 share of partnership debt. At
the end of the current year, the partnership pays off its debts and liquidates. Janella receives a proportionate
liquidating distribution consisting of $42,000 cash and inventory valued at $24,000 (adjusted basis to the
partnership = $20,000). How much gain or loss does Janella recognize, and what is her basis in the distributed
property?
Janella recognizes a gain of $36,000 and her basis in the distributed property is $54,000.
Janella's basis in her partnership interest is $120,000, which includes her share of partnership debt. When the partnership pays off its debts and liquidates, Janella receives a proportionate liquidating distribution consisting of $42,000 cash and inventory valued at $24,000 (adjusted basis to the partnership = $20,000).
To calculate Janella's recognized gain or loss, we need to compare her basis in the partnership interest to the fair market value of the distributed assets.
The fair market value of the distributed assets is $42,000 (cash) + $24,000 (inventory) = $66,000.
The amount of the loss is the excess of her basis over the fair market value of the distributed assets, which is $120,000 - $66,000 = $54,000.
To determine Janella's basis in the distributed property, we need to adjust her basis in the partnership interest by the amount of the liquidating distribution she received.
Janella received a total liquidating distribution of $42,000 cash + $24,000 inventory = $66,000. Her share of partnership debt was $150,000, and the partnership paid off all its debts, so she no longer has any debt basis.
Janella's distribution of $66,000 exceeds her adjusted basis of $30,000 by $36,000. She recognizes a gain of $36,000. Therefore, Janella's new basis in the distributed property is $120,000 - $66,000 (liquidating distribution) = $54,000.
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. The jug shown below contains some water. How many litres of water does this jug contain? 300 ml 250 ml - 200 ml -150 ml 100 ml -50 ml
Answer:
250 ml
Step-by-step explanation:
300ml + 250ml =550ml
550ml - 200ml=350ml
350ml - 150ml + 100ml=300ml
300ml - 50ml=250ml
I NEED HELP ON THIS ASAP!!
The constraints as a system of linear inequalities include the following;
x + y ≤ 180
x ≥ 40
y ≥ 40
3x + 4y ≤ 640
75x + 60y ≤ 12,900
The solution set for the system of linear inequalities is shown in the coordinate plane below.
How to write the required system of linear inequalities?In order to write a system of linear inequalities to describe this situation, we would assign variables to the number of SOS Smartcall produced in one day and number of SOS Basic produced in one day respectively, and then translate the word problem into algebraic equation as follows:
Let the variable x represent the SOS Smartcall produced in one day.Let the variable y represent the number of SOS Basic produced in one day.Based on the information provided about this cell phone company, the constraints can be written as a system of linear inequalities as follows;
x + y ≤ 180
x ≥ 40
y ≥ 40
3x + 4y ≤ 640.
75x + 60y ≤ 12,900
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Amanda was given the following polynomial and asked to factor completely. Find the errors that she made and explain how to fix her errors.
Answer:
The error in Amanda's calculation is in line 2, where she incorrectly subtracted 6x instead of adding 6x, as well as incorrectly subtracting 24 instead of adding 24. Amanda also omitted the addition sign in line 3 of her calculations.
Step-by-step explanation:
To factor a quadratic polynomial in the form ax² + bx + c, find two numbers that multiply to ac and sum to b.
Therefore, for the given polynomial 4x² + 22x + 24:
⇒ ac = 4 · 24 = 96
⇒ b = 22
The factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, and 96.
Therefore, the factor pair that sums to 22 is 16 and 6.
Rewrite b as the sum of these two numbers:
⇒ 4x² + 22x + 24
⇒ 4x² + (16 + 6)x + 24
⇒ 4x² + 16x + 6x + 24
Therefore, the error in Amanda's calculation is in line 2, where she incorrectly subtracted 6x instead of adding 6x, as well as incorrectly subtracting 24 instead of adding 24. Amanda also omitted the addition sign in line 3 of her calculations.
The correct calculation is as follows:
4x² + 22x + 24
⇒ 4x² + 16x + 6x + 24
⇒ 4x(x + 4) + 6(x + 4)
⇒ (4x + 6)(x + 4)
Given :-
A polynomial 4x² + 22x + 24 .To find:-
The mistakes made by Amanda and how to fix the mistakes.Answer:-
Given polynomial to us is ,
[tex]\implies 4x^2 + 22x + 24 \\[/tex]
With respect to the standard form of polynomial ax² + bx + c , we have;
a = 4 and c = 24Step 1 :- Split the middle term into two parts p and q such that p × q = a × c and p + q = b
Such two numbers are 16 and 6 .
Hence, we can rewrite it as ,
[tex]\implies 4x^2 + 16x + 6x + 24 \\[/tex]
But Amanda wrote [tex] 4x^2+16x - 6x + 24[/tex] , so she made a mistake here by writing +6x as -6x .
Step 2:- Factor out the common terms .
[tex]\implies 4x( x + 4) + 6(x+4) \\[/tex]
Step 3 :- Take out [tex] x+4[/tex] as common.
[tex]\implies (x+4)(4x+6) \\[/tex]
This is our required factored form .
Hence we can see that Amanda made a mistake only in splitting the term term .
and we are done!
How many unit angles does the smaller angle of a small pattern block turn through?explain
Therefore , the solution of the given problem of angle comes out to be the smaller angle will therefore rotate through one unit angle each time.
What does an angle mean?In Euclidean mathematics, a tilt is a shape consisting of two sides, or cylindrical faces, that separate at the wall's centre and its apex. Two rays may come together at their intersections to create an angle. Another result of two things interacting is an angle. They are characterized as dihedral angles. Two line beams can be arranged in different ways at their extremities to produce a two-dimensional curve.
Here,
A small pattern block is a geometric structure made up of six congruent isosceles triangles organised around a regular hexagon with six equal-length sides.
Two of the angles in an isosceles triangle are identical in size, while the third angle varies.
We need to first create a frame of reference in order to determine how many unit angles the smaller angle of a small pattern block turns through.
Assume that we begin by placing the little pattern block in its initial location with one of its sides vertically aligned.
This results in one of the isosceles triangles being vertically aligned after turning the block.
The smaller angle will therefore rotate through one unit angle each time if we continue to rotate the small pattern block anticlockwise by one-sixth of a complete revolution for each subsequent turn.
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a spherical snowball is melting in such a way that its diameter is decreasing at rate of 2 cm/min. at what rate is the volume of the snowball decreasing when the diameter is 6 cm?
The rate of decrease of volume of the sphere when its diameter is 6 cm is -96π cubic cm/min.
Given that the snowball is a sphere, we can use the formula for the volume of a sphere.
The formula for the volume of a sphere is
V = 4/3 πr³
We need to find out the rate of decrease of volume when the diameter is 6 cm.
To find the rate of decrease of volume, we need to differentiate the above formula. Differentiating the above formula w.r.t. time, we get
dV/dt = 4/3 π(3r²)(dr/dt)
Where r is the radius of the sphere and dr/dt is the rate of change of the radius.
Let d be the diameter of the sphere. Then we can write,r = d/2
Also, given that dr/dt = -2cm/min
Substituting the values in the equation for the rate of decrease of volume,
dV/dt = 4/3 π(3(d/2)²)(-2) = -8π/3 d²
As the diameter of the sphere is 6 cm, d = 6 cm.Substituting the value in the equation above, we get
dV/dt = -8π/3 (6)² = -96π cubic cm/min
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The ability to determine the age of some individuals can be difficult if there are not quality government records of birth.
Bone growth takes place at the growth plates at the end of long bones. Once all growth plates fuse, growth stops, and
an individual is considered a biological adult. The age at which growth plates fuse for males is approximately normally
distributed with a mean of 19.1 years and a standard deviation of 16.1 months. Complete parts (a) through (d).
The probability a male's growth plate will fuse before age 17 is 0.1112, for this we have to learn probability.
What is Probability?Probability of an event is a number that shows what is the possibility of an event occur.
we have to take entire area under the standardized curve from and including the left tail up to the z-score for 17.
[tex]= \frac{(17 - 18.6 years)}{1.308333 years}[/tex]
[tex]= \frac{(-1.6) }{1.308333}[/tex]
[tex]= -1.22293[/tex]
[tex]= approx. 1.22.[/tex]
The area from the mean to +ve or -ve 1.22 is .3888
We have to subtract .3888 from area from the tail to the mean (.5000) to get area from the tail to 1.22.
So, the growth plates will fuse before age 17 [tex]= .5000-.3888 = 0.1112[/tex]
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an escalator can move 30 people per minute from the main level to the upper level. How long would it take to use the escalator to move 100 people?
Answer:
3.33 minutes
Step-by-step explanation:
first know that the escalator can move 30 people in 1 minute.
then, we can write in a mathematical expression as:
30 people = 1 minute
100 people = ? minutes.
cross multiply, i.e. 30×? = 100×1
therefore, ? = 100/30
? = 3.33 minutes.
therefore, it's going to take 3.33 minutes for the escalorr to take 100 people.
Which inequality is true when the value of w w is 13 13?
The given inequality is true when w is greater than 5: w > 5. (option 4)
To solve the inequality, we can simplify the expression inside the absolute value brackets by distributing the negative sign and combining like terms:
|13w - 5 + w + 3| - 5 + w + 3 > 5|14w - 2| - 2 > 5|14w - 2| > 7Now we can split the inequality into two cases: 14w - 2 > 7 and -(14w - 2) > 7. Solving each case for w gives:
14w - 2 > 7
14w > 9
w > 9/14
-(14w - 2) > 7
-14w + 2 > 7
-14w > 5
w < -5/14
So the solution to the inequality is w > 9/14 or w < -5/14. However, we are given that w is greater than 5, so the only valid solution is w > 5.
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Complete Question:
Which inequality is true when the value of w is 13?
w-<5 -w-3>-5 -w-3>5 w->5.Please answer these questions and show working
Case 1: The value of the vector B is equal to [tex]\overrightarrow {B} = (7, - 20)[/tex].
Case 2: The values of variables m and n from vector operations are - 5 and - 4, respectively.
How to deal operation between vectors
In this problem we find two cases of operations between two vectors. According to linear algebra, there are two fundamental operations:
Vectorial additionVectorial scalar multiplication.Case 1:
The value if vector B can be found by following operation:
[tex]\overrightarrow{B} - \overrightarrow {A} = (5, - 5)[/tex]
[tex]\overrightarrow {B} = \overrightarrow {A} + (5, - 5)[/tex]
[tex]\overrightarrow{B} = (2, - 4) + (5, - 5)[/tex]
[tex]\overrightarrow{B} = (2 + 5, - 4 - 5)[/tex]
[tex]\overrightarrow {B} = (7, - 20)[/tex]
Case 2:
First, determine the expression for the given operator:
2 · a - 2 · b = 2 · (- 3, m) - 2 · (n, - 4)
2 · a - 2 · b = (- 6, 2 · m) + (- 2 · n, 8)
2 · a - 2 · b = (- 6 - 2 · n, 2 · m + 8)
Second, find the values of m and n:
(- 6 - 2 · n, 2 · m + 8) = (2, - 2)
- 6 - 2 · n = 2
- 3 - n = 1
n = - 4
2 · m + 8 = - 2
- m - 4 = 1
m = - 5
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plss hellllp
plss helllp
Suppose the diameter of a circle is
4
What is its circumference?
Use 3. 14 for
π and enter your answer as a decimal
The circumference of the circle with diameter 4 is 12.56 units using 3.14 as the value of π.
The circumference of a circle is given by the formula C = πd, where d is the diameter of the circle. If the diameter of the circle is given as 4, then we can substitute it into the formula to get:
C = πd
C = π(4)
Since we are given to use 3.14 for π, we can substitute it into the formula to get:
C = 3.14(4)
C = 12.56
It's important to note that the circumference of a circle is the distance around the edge or perimeter of the circle.
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what is the simplest form of this radical expression? 3√2a−6√2a please show ur work
The simplest form of the given radical expression as required to be determined is; -3³√2a.
What is the simplified form of the expression?As evident form the task content; the given expression whose simplified form is to be determined is;
3 ³√2a - 6 ³√2a
Since; 3³√2a is common to both terms of the expression; Hence, by factorisation; we have;
3³√2a (1 - 2)
= 3³√2a • -1
= -3³√2a
Ultimately, the simplified form of the radical expression is; -3³√2a.
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Can someone please help me with this ASAP? Show work!
The experimental probability of not selecting a peppermint candy is 77.78%, so the correct option is the third one.
How to find the probability?We want to find the experimental probability of selecting a candy that is not peppermint.
To get this, we need to get the difference between 1 and the probability of getting a peppermint candy, then we will get:
p = 1 - 2/9
p = 7/9
Now we want to express this as a percentage, so we need to multiply this by 100%
p = (7/9)*100%
p = 77.78%
We can see that the experimental probability is the one in the third option.
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Reasoning The measure of ∠1 is 39°. Find the measure of the angle adjacent to ∠1. The figure is not drawn to scale. Use pencil and paper. Explain how you know your answer is reasonable
Assuming that ∠1 and its adjacent angle form a straight line, we know that the sum of the angles on a straight line is 180°. Therefore, the measure of the adjacent angle is 180° - 39° = 141°.
we can also look at the other angles in the figure. From the diagram, we can see that ∠2 and ∠3 are acute angles, which means they are less than 90°. Additionally, we know that the sum of the angles in a triangle is 180°, so ∠2 + ∠3 + ∠4 = 180°.
Since ∠2 and ∠3 are acute, their sum must be less than 180°. Therefore, ∠4 must be an obtuse angle (greater than 90°) in order for the sum to be 180°. This makes sense, as an obtuse angle is required to form a triangle with two acute angles.
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Solve the inequality x+2<5. Then graph the solutions. Question content area bottom Part 1 What are the solutions? Select the correct choice below and fill in the answer box to complete your choice.
The solution to the inequality expression given as x + 2 < 5 is x < 3
How to determine the solution to the inequalityInequality expressions refer to statements in mathematics that use symbols like <, >, ≤, or ≥ to compare two values.
From the question, we have the following parameters that can be used in our computation:
x + 2 < 5
Subtract 2 from both sides of the inequality expression
So, we have the expression below
x + 2 < 5 - 2
Evalaute the like terms
x < 3
This means that, the solution is x < 3
The graph of the inequality is added as an attachment
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i need help asap please
Answer:
2,3,4,10
Step-by-step explanation:
DIVIDE METERS BY 1000 SINCE KILO MEANS 1000
Answer:2000m=2km
3000m=3km
4000m=4km
10000m=10
Step-by-step explanation:
1kilometers is equal to 1000 meters. So, we divide meters with 1000 in order to find kilometers.
The area of the parallelogram below is
2m
8m
6m
square meters.
Answer:
Below
Step-by-step explanation:
Area of a parallelogram is given by: base * height
base = 6 m height = 8 m
area = 6* 8 = 48 m^2
Mishka is on a long road trip, and she averages 75 mph for 3 hours while she's driving on the highway. While she's driving on side roads for 1 hour, she only averages 40 mph. What is the total distance that she covers on her road trip?
The total distance that Mishka covers on the trip is 265 miles.
What is the total distance covered?Speed measures how fast an object is moving with respect to time. Speed is the ratio of total distance to total time.
Speed = distance / time
Distance = speed x time
Distance covered while driving on the highway = 75 x 3 = 225 miles
Distance covered while driving on the side road = 40 x 1 = 40 miles
Total distance covered = 225 miles + 40 miles = 265 miles
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kate is remodeling her kitchen. she goes shopping for a refrigerator. the model price is $405, and the estimated energy cost per year is $36. if the model has an estimated lifetime of 10 years, what is the lifetime cost of the model? answer to integer without a unit.
The lifetime cost of the model is $765.
Kate is re-modelling her kitchen.
She is going shopping for a refrigerator.
The model price is $405, and the estimated energy cost per year is $36.
If the model has an estimated lifetime of 10 years,
Lifetime cost of the model:
The lifetime cost of the model is $765
Explanation: Given, The model price is $405
Estimated energy cost per year is $36.
The model has an estimated lifetime of 10 years.
Lifetime cost of the model can be calculated as follows:
Total lifetime cost = Initial cost + (Estimated energy cost per year × Estimated lifetime)
Initial cost = $405
Estimated energy cost per year = $36
Estimated lifetime = 10 years
Total lifetime cost = $405 + ($36 × 10)
Total lifetime cost = $405 + $360
Total lifetime cost = $765
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