Therefore, the value of sin105° is: = 0.7123
What is value?Value is a measure of the worth or importance of something. It is a subjective measure, as it is based on a person's individual beliefs, experiences, and values. Value can be seen in the monetary cost of a product or service, the quality of a product or service, the time spent on a task, or the amount of effort put into creating something. Value can also be intangible, such as the feeling of having achieved a goal or a sense of accomplishment. Value can be used to assess the worth of something, as well as to determine whether something is worth pursuing or investing in.
The value of sin105° can be determined by applying the compound angles formula. The formula states that the sine of an angle is equal to the product of the sine and cosine of the other two angles that make up the original angle.
For the angle 105°, the two other angles are 75° and 30°. Therefore, the sine of 105° can be calculated as follows:
sin105° = sin75° x cos30° + cos75° x sin30°
Using the values of sin75° and cos30° from a trigonometry table, we can calculate the sine of 105° as:
sin105° = 0.9659 x 0.5 + 0.2588 x 0.5
Therefore, the value of sin105° is:
sin105° = 0.7123
To know more about value click-
https://brainly.com/question/843074
#SPJ1
in a group more than 1/2 are boys but there are less than 2/3 of the group can there be 4 people
The minimum number of people in the group should be 3.
In a group more than 1/2 are boys but there are less than 2/3 of the group.
Let the number of people in the group be x.
Therefore, the number of boys in the group is greater than 1/2 × x or x/2.
The number of people in the group is less than 2/3 × x or 2x/3.
As per the question, x > x/2 and x < 2x/3
multiply both sides by 2,
so we get:
2x > x and 2x < 4x/3.
Now, simplify the above equations as follows:
2x > x ⇒ x > 0 and
2x < 4x/3 ⇒ 6x < 4x ⇒ 0 < -2x ⇒ x < 0
Thus, it is not possible to have a group of 4 people as the number of people in the group is greater than 0.
Therefore, the minimum number of people in the group should be 3.
for such more question on proportion
https://brainly.com/question/870035
#SPJ11
AD and EC are diameters of 0. OB is a radius. Classify each statement as true or false. AOC = 100
Therefore , the solution of the given problem of circle comes out to be this statement is true ∠AOC = 100° .
Circle – what is it?Each area of a plane with a specific distance from this additional spot forms a circle (center). Thus, it comprises of curved spots that are separated from one another and separated by the surface. Additionally, it rotates evenly around the centre from all sides. Every set of endpoints in a circular, constrained double sphere is uniformly spaced apart from the "centre."
Here,
Given :
AD and EC are diameters as we can see they are passing through centre .
So , there are diameter.
=> ∠AOC = ∠A0B + ∠BOC
=> ∠AOC = 100°
thus , this statement is true ∠AOC = 100° .
To know more about circle visit:
https://brainly.com/question/29142813
#SPJ1
7. The sides of a rectangle are in the ratio 5:2. If the perimeter of the rectangle is 42 cm, find the area of the rectangle.
Answer:
90 cm²
Step-by-step explanation:
Let the greater side be the length L and the smaller side the width W
Given L : W = 5 : 2
we can rewrite this as a fraction
[tex]\dfrac{L}{W} = \dfrac{5}{2}[/tex]
Cross-multiplying we get
2L = 5W
The perimeter of a rectangle
= 2(L + W)
= 2L + 2W
and we are told it is 42 cm
Therefore
2L + 2W = 42
Substitute 5W for 2L to get
5W + 2W = 42
7W = 42
or
W = 42/6 = 6
Given 2L + 2W = 42, substitute 6 for W to get
2L + 2(6) = 42
2L + 12 = 42
2L = 42 - 12= 30
L = 30/2 = 15
So length L = 15
Just to check
L/W = 15/6 = 5/2 by dividing both numerator and denominator by 3
Area of the rectangle
= L x W
= 15 x 6
= 90 cm²
F(x)=4x^2+2
a) F(1)=
B) F(-1)=
C) F(-4)
D) F(-7/2)=
Answer:
F(1) = 6
F(-1) = 6
F(-4) = 66
F(-7/2) = 51
Find the missing information for the triangle. *not drawn to scale
The measure of the angle x is 60 degrees and the sides of the triangle is 4√3 and 8.
What is sum of interior angles of triangle?According to the triangle sum theorem, a triangle's internal angles can be added up to 180 degrees. The triangle sum theorem, often referred to as the angle sum theorem of the triangle, states that the total of the measures of a triangle's internal angles in a Euclidean space adds up to 180 degrees, whether the triangle is acute, obtuse, or right. The smallest polygon with three sides and three internal angles, one at each vertex, and bordered by two neighbouring sides is a triangle.
Given that, angle B = 30 degrees and angle m = 90 degrees.
The sum of all the angles of a triangle is 180 degrees.
Thus,
30 + 90 + angle x = 180
120 + angle x = 180
angle x = 180 - 120
angle x = 60
The sides is thus a triangle with angle 30-60-90.
For this case the sides are in the ratio:
x : x√3 : 2x
From the figure we see that, x = 4.
Thus, the remaining sides are:
x√3 = 4√3 and 2x = 2(4) = 8
Hence, the measure of the angle x is 60 degrees and the sides of the triangle is 4√3 and 8.
Learn more about triangle here:
https://brainly.com/question/2272632
#SPJ1
Fill in the gaps in the following sentences using the options below:
Two objects are similar if they have
Two objects are congruent if they have 1)the same shape.
2) different shapes.
3)the same shape and size.
4)different shapes and sizes
Answer:
Two objects are similar if they have the same shape.
(1): Two objects are similar if they have the same shape.
(2): Two objects are congruent if they have the same shape and size.
(3): Two objects are congruent if they have the same shape and size.
(4): Two objects are congruent if they have different shapes and sizes.
Hope this helps! I'm sorry if it's wrong. If you need more help, ask me! :]
how is a condominium different than a single family dwelling
a. occupants pay rent to the landlord who owns the property
b.occupants are investors who own shares in the entire property and not individual unit
c.occupants individually own both the home and the land
b.occupants jointly own the common parts of the property and individually own their own units
Option d. occupants jointly own the common parts of the property and individually own their own units is the correct answer .A condominium is a type of housing where individuals own their own unit or apartment
what is condominium?
A condominium, often shortened to "condo," is a type of housing arrangement where individuals own their own unit or apartment within a larger building or community, and jointly own the common areas and facilities of the property with other owners.
In the given question,
A condominium is a type of housing where individuals own their own unit or apartment and jointly own the common areas of the property, such as hallways, elevators, and recreation areas. This is different from a single-family dwelling where the occupant individually owns both the home and the land.
In a condominium, occupants are not renting from a landlord who owns the property, nor are they investors who own shares in the entire property. Instead, each occupant owns their own individual unit and has a shared interest in the common areas of the property.
Additionally, in a condominium, occupants are typically required to pay fees to the condo association to cover the maintenance and upkeep of the common areas, which is not typically required in a single-family dwelling.
To know more about condominium , visit:
https://brainly.com/question/20299245
#SPJ1
14. EXTENSION QUESTION
A GIVE WAY sign in the shape of an equilateral triangle is 110cm in height. Find the length of one
of its sides. Include a diagram.
The length of one of the sides of the GIVE WAY sign, equilateral triangle is approximately 200.89cm.
What is an equilateral triangle?
An equilateral triangle in geometry is a triangle with equally long sides. The three angles opposing the three equal sides are equal in size because the three sides are equal. As a result, with each angle measuring 60 degrees, it is sometimes referred to as an equiangular triangle. Equilateral triangles have the same area, perimeter, and height formula as other kinds of triangles.
Given that the triangle is an equilateral triangle, thus all sides are equal.
Let us suppose the sides = x.
The height of the equilateral triangle is given by:
height = (√3/2) x side length
Substituting the values:
110 = (√3/2) x (x)
x = 110 / (√3/2)
x ≈ 200.89cm
Hence, the length of one of the sides of the GIVE WAY sign is approximately 200.89cm.
Learn more about equilateral triangle here:
https://brainly.com/question/3461022
#SPJ1
Do you mind if someone would answer number 21 part a and b
I would really appreciate if you would
The value at the 60th percentile is 72°F. According to the given question.
What is whisker plot?
A whisker plot, also known as a box and whisker plot, is a graphical representation of a dataset that shows the distribution of values. It is often used to summarize and compare datasets, and to identify outliers or extreme values.
The plot is constructed using a rectangular box that represents the middle 50% of the data (the interquartile range or IQR). The box extends from the lower quartile (the value below which 25% of the data falls) to the upper quartile (the value below which 75% of the data falls). A line inside the box represents the median (the value below which 50% of the data falls).
Part A:
Here is a box and whisker plot representing the given data:
| + |
75 -+ + |
| | |
70 -+ | |
| | |
65 -+-------------+-------------------+
| S M T W | T F S |
The plot is divided into four sections: the lowest 25% of the data (the lower quartile), the next 25% of the data (the second quartile or median), the next 25% of the data (the third quartile), and the highest 25% of the data (the upper quartile). The box represents the middle 50% of the data, and the whiskers extend to the lowest and highest values that are not outliers.
Part B:
To determine which value is at a given percentile, we need to sort the data in ascending order and count how many values are less than or equal to the percentile we are interested in. Then we find the corresponding value in the sorted list.
For example, to find the value at the 60th percentile, we first calculate 60% of the total number of values, which is:
0.60 * 7 = 4.2
Since we cannot have a fraction of a value, we round up to the next integer, which is 5. This means that the value at the 60th percentile is the fifth value in the sorted list:
65, 66, 68, 70, 72, 74, 75
Therefore, the value at the 60th percentile is 72°F.
To know more about the Statistics visit :-
https://brainly.com/question/15525560
#SPJ1
The system of linear equations below has the solution (3, 3), where F, G, H, P. Q, and R are non-zero real numbers.
Fr+ Gy=H
Pr+Qy= R
Which system must also have the solution (3,3) ?
3Fx - 3Gy= H
Pr + Qy = R
[ 3Fx + 3Gy = H
13Px +3Qy = R
((F+3P) x + (G+ 3Q) y = H + 3R
Pr+Qy = R
((F+3G) x + (P+3Q) y = H + 3R
Pr+Qy = R
Answer:
3Fx - 3Gy= H
Step-by-step explanation:
Katherine has $8.60 in dimes and quarters. If she has twelve more quarters than dimes, how many dimes does she have? How many quarters does she have?
After addressing the issue at hand, we can state that by function Katherine now has 28 quarters.
what is function?Mathematicians investigate numbers and their varieties, equations and adjacent tissues, shapes but instead their locations, and potential locations for these things. The term "function" refers to the relationship here between set of inputs, each with its own output. A function is a relationship of both inputs and outputs in which each input results in a single, distinct production. Each function has its own domain, codomain, or scope. The letter f is commonly used to denote functions (x). An x represents entry. On functions, each capabilities, so several capabilities, in capabilities, and on operations are the four major types of accessible functions.
Let's represent the unknown quantities with variables.
Let d be the number of dimes Katherine possesses.
Let q represent Katherine's number of quarters.
We can deduce from the problem:
Equation 1: Total dimes and quarters value = $8.60 0.10d + 0.25q = 8.60
Number of quarters = Number of dimes + 12 q = d + 12 Equation 2:
Now we can plug equation 2 into equation 1 to eliminate q and find d:
0.10d + 0.25(d + 12) = 8.60
Katherine now has 16 dimes.
We can use equation 2 to calculate the number of quarters:
q = d + 12 = 16 + 12 = 28
Katherine now has 28 quarters.
To know more about function visit:
https://brainly.com/question/28193995
#SPJ1
A car averages 60 miles per hour on a road trip. Use the graph to represent the relationship between the time and the distance traveled.
please tell me the coordinates for the graphing because you have to graph it.
the picture is the graph I have to use :>
Using the speed formula, the coordinates to plot on the graph are (0, 0), (1, 60), (2, 120), (3, 180), and (4, 240).
What is the speed?
Speed is defined as the distance traveled per unit of time. It is the slope of the distance vs time graph. The formula for speed is:
Speed = Distance / Time
Where:
Speed is the speed of the object, usually expressed in units such as meters per second (m/s)
Distance is the distance traveled by the object, usually expressed in units such as meters
Time is the duration of travel, usually expressed in units such as seconds
To graph the relationship between the time and the distance traveled by the car, we can use the following formula:
Distance Traveled = Rate x Time
In this case, the rate (or speed) of the car is 60 miles per hour, and the distance traveled is a function of time.
So we can write the equation as:
Distance Traveled = 60 x Time
To graph this equation, we can plot a series of points using different values of time. For example:
At 0 hours, the distance traveled is 0 miles. Coordinate: (0, 0)
At 1 hour, the distance traveled is 60 miles. Coordinate: (1, 60)
At 2 hours, the distance traveled is 120 miles. Coordinate: (2, 120)
At 3 hours, the distance traveled is 180 miles. Coordinate: (3, 180)
At 4 hours, the distance traveled is 240 miles. Coordinate: (4, 240)
These points can be plotted on a graph with time on the x-axis and distance traveled on the y-axis. The resulting graph would be a straight line with a slope of 60 (which represents the rate or speed of the car) and passing through the origin (0, 0).
So the coordinates to plot on the graph are:
(0, 0), (1, 60), (2, 120), (3, 180), (4, 240)
To know more about the speed visit:
brainly.com/question/29003840
#SPJ1
Solve 19(1.12^x)=8(1.18^x). Show work.
Answer:
x≈12.6
Step-by-step explanation:
We have the equation:
19(1.12^x) = 8(1.18^x)
Divide both sides by 8:
19/8 (1.12^x) = (1.18^x)
Take the natural logarithm of both sides:
ln[19/8 (1.12^x)] = ln[1.18^x]
Using the properties of logarithms, we can simplify the left side:
ln(19/8) + ln(1.12^x) = x ln(1.18)
Substituting y = 1.12^x, we get:
ln(19/8) + ln(y) = ln(1.18) y
Now we can solve for y:
ln(y) = ln(1.18) y - ln(19/8)
Using a numerical method or a graphing calculator, we can find that y ≈ 10.584.
Substituting back to solve for x:
1.12^x ≈ 10.584
Taking the logarithm base 1.12 of both sides:
x ≈ ln(10.584)/ln(1.12)
x ≈ 12.6
Therefore, the solution to the equation is x ≈ 12.6.
2p - 5q= 8
3p - 7q = 11
Solve the simultaneous equation using elimination method
Step-by-step explanation:
Paul behavior is not unethical is that the information is firsthand hand factual and
Norris living room table is a shape of a trapezoid the bottom of the table top measure 613. 5 inches and the top measures 11. 3 inches theme part of the table top is 12 inches the paint she will buy covers 12 in. ² per kid how many whole cans of paint does she need to buy the cover the table top
Norris living room table is a trapezoid shape with a bottom length of 613.5 inches, a top length of 11.3 inches, and a height of 12 inches.
To find the area of the tabletop, we need to calculate the average of the lengths of the top and bottom, and then multiply that by the height.
Average of lengths = (613.5 + 11.3)/2 = 312.4 inches
Area of table top = (312.4) x 12 = 3748.8 square inches
Since one can of paint covers 12 square inches, we can find the number of cans of paint needed by dividing the area of the table top by the coverage per can:
Number of cans of paint = 3748.8/12 = 312.4 cans
However, we need to round up to the nearest whole can, so Norris needs to buy 313 cans of paint to cover the entire table top.
Learn more about Trapezoid:
https://brainly.com/question/1463152
#SPJ4
A large game cube with a three inch side length is wrapped with shrink wrap how much shrink wrap will be used to wrap ten game cubes
The quantity of shrink wrap that will be used to wrap ten game cubes is 540 square inches
To calculate the amount of shrink wrap needed to wrap ten game cubes, we need to first find the surface area of one game cube, and then multiply it by 10.
The surface area of a cube can be found by multiplying the length of one side by itself, and then multiplying that by 6 (since there are six faces on a cube). In this case, the length of one side is 3 inches, so the surface area of one cube is:
Surface area of one cube = 3 x 3 x 6 = 54 square inches
To wrap ten cubes, we need to multiply the surface area of one cube by 10:
Surface area of ten cubes = 54 x 10 = 540 square inches
Learn more about surface area here
brainly.com/question/23273671
#SPJ4
find the cost in dollars of the operating a 100- w w lamp continuously for 1 week when the power utility rate is 16 cents/kwh c e n t s / k w h . express your answer using two significant figures.
Operating a 100-watt lamp for a week when the power utility rate is 16 cents/k
Wh can be calculated as follows:
Power of the lamp = 100 watts
Time of usage = 1 week = 7 days
Power utility rate = 16 cents/kWh
1 kW = 1000 watts
Power consumed by lamp = 100 watts
Total time of usage in hours = 7 days x 24 hours/day = 168 hours
Energy consumed = Power x Time= 100 watts x 168 hours= 16,800
watt-hours (Wh) = 16.8 kWh
Cost of operating the lamp = Energy consumed x Power utility rate= 16.8 kWh x 16 cents/k
Wh= 2.688 dollars= $2.7 (approx)
Therefore, the cost of operating a 100-watt lamp continuously for 1 week when the power utility rate is 16 cents/kWh is approximately $2.7 using two significant figures.
To learn more about “Power” refer to the https://brainly.com/question/2248465
#SPJ11
to decrease a number by 37% you multiply by 0.63
to decrease a number by 16% what do you multiply it by
To decrease a number by 16%, you should multiply it by 0.84.(1 - 0.16 = 0.84).
When you reduce a number by a percentage, you are subtracting that percentage from it. For example, if you were to decrease 100 by 16%, you would subtract 16 from 100 to get 84.
This is also known as a percentage decrease, which is the opposite of a percentage increase.
Using the formula for percentage decrease, we get:
Percentage decrease = (Decrease in value / Original value) × 100
We're told that to decrease a number by 37%, you multiply it by 0.63.
Therefore, we can write:
0.63 = (Decrease in value / Original value) × 1000.63 × Original value = Decrease in value
We want to find what you multiply a number by to decrease it by 16%, so let's call that value x.
So: x = (Decrease in value / Original value) × 100%
So, we can substitute in the values we know to solve for x:
x = (0.16 × Original value / Original value) × 100%x = 0.16 × 100%x = 16%
Therefore, to decrease a number by 16%, you should multiply it by 0.84.
for such more question on percentage
https://brainly.com/question/27855621
#SPJ11
(09.02 MC)
What step is needed when constructing a circle circumscribed about a triangle? (1 point)
Group of answer choices
Construct the angle bisectors of each angle in the triangle.
Construct the perpendicular bisectors of each side of the triangle.
Construct the midpoints of each side of the triangle.
Construct the altitude of each angle in the triangle.
The step needed when constructing a circle circumscribed about a triangle is option B: Construct the perpendicular bisectors of each side of the triangle.
What is the triangle construction about?When constructing a circle circumscribed about a triangle, the center of the circle must lie at the intersection of the perpendicular bisectors of the sides of the triangle.
To construct the perpendicular bisector of a side, you need to find its midpoint and then draw a line perpendicular to the side passing through that midpoint.
By constructing the perpendicular bisectors of all three sides, you can find their point of intersection, which will be the center of the circle. Then, the radius of the circle can be found by measuring the distance from the center to any of the vertices of the triangle.
Therefore, Once you have the center and radius, you can draw the circle circumscribed about the triangle.
Learn more about triangle on:
https://brainly.com/question/1503113
#SPJ1
What angle does m make with the x-axis?
Therefore , the solution of the given problem of angle comes out to be x = 30°.
What does an angle mean?In Euclidean geometry, the barrier's centre and top separate two spherical faces, which make both of the sides of a tilt. Two rays may combine to create an angle where they collide. Another result of two things interacting is an angle. They most closely resemble dihedral shape. Two line beams can be arranged in different ways at their extremities to form a two-dimensional curve.
Here,
Given : a line making angle with x axis:
We have to find the angle with x axis.
So,
=> tan x = p/b
=> tanx = 1/√3
=> x = tan⁻¹(1/√3)
=> x = 30°
To know more about angles visit:
https://brainly.com/question/14569348
#SPJ1
Please help me find the missing sides to solve this equation
Trigonometry is a branch of mathematics that deals with the relationships and properties of triangles, particularly the relationships between their sides and angles.
What is trigonometry?1) sin 30 = 10/u
u = 10/sin 30
u = 20
Cos 30 = v/20
v = 20cos 30
v = 17
2) cos 30 = 4√3/m
m = 4√3/√3/2
m = 4√3 * 2/√3
m = 8
Sin 30 = n/8
n = 8 sin 30
n = 4
3) sin 60 = x/7
x = 7 sin 60
x = 6
Cos 60 = y/7
y = 7 Cos 60
y = 3.5
4) Tan 30 = v/10√3
v = 10√3 * 1/√3
v = 10
Cos 30 = 10√3/u
u = 10√3/Cos 30
u = 10√3/√3/2
u = 10√3 * 2/√3
u = 20
5) Sin 60 = x/6√3
x = 6√3Sin 60
x = 6√3 * √3/2
x = 3
Cos 60 = y/6√3
y = Cos 60 * 6√3
y = 6√3 * 1/2
y = 3√3
6) Sin 60 = x/4√2
x = Sin 60 * 4√2
x = 4√2 * √3/2
x = 2√6
Cos 60 = y/4√2
y = Cos60 * 4√2
y = 1/2 * 4√2
y = 2√2
Learn more about trigonometry:https://brainly.com/question/29002217
#SPJ1
a bag of 15 scrabble tiles contains three each of the letters a, c, e, h, and n. if you pick six letters one at a time, what is the chance that you spell c-h-a-n-c-e? (in this order)
The chance of spelling C-H-A-N-C-E in this order with a bag of 15 scrabble tiles containing three each of the letters A, C, E, H, and N is 3/40040.
The chance of spelling C-H-A-N-C-E in this order with a bag of 15 scrabble tiles containing three each of the letters A, C, E, H, and N can be calculated by multiplying the probabilities of picking each letter in the correct order.
we need to calculate the probability of picking the letter C. There are three C's in the bag and a total of 15 tiles, so the probability of picking C is 3/15 or 1/5.
Next, we need to calculate the probability of picking the letter H. After picking the first letter, there are 14 tiles left in the bag and three H's, so the probability of picking H is 3/14. We can calculate the probabilities of picking the letters A, N, C, and E in the correct order:
- Probability of picking A: 3/13
- Probability of picking N: 3/12 or 1/4
- Probability of picking C: 2/11
- Probability of picking E: 3/10
To find the overall probability of spelling C-H-A-N-C-E in this order, we multiply all of these probabilities together:
[tex](1/5) * (3/14) * (3/13) * (1/4) * (2/11) * (3/10) = 18/240240 = 3/40040[/tex]
Therefore, the chance of spelling C-H-A-N-C-E in this order with a bag of 15 scrabble tiles containing three each of the letters A, C, E, H, and N is 3/40040.
Know more about probability here:
https://brainly.com/question/30034780
#SPJ11
Find the area of a circle with a circumference of 31. 42 centimeters
From the given data in the question, the circumference of a circle is 31.42 centimeters then the area of the circle is 78.5 cm².
To find the area of a circle with a given circumference, we need to use the formula:
Circumference = 2πr
where π is the mathematical constant pi (approximately 3.14) and r is the radius of the circle. In this case, the circumference is given as 31.42 centimeters. So we can write:
31.42 = 2πr
To solve for r, we can divide both sides by 2π:
r = 31.42 / (2π)
r = 5
So the radius of the circle is 5 centimeters.
Now, to find the area of the circle, we can use the formula:
Area = πr²
Substituting the value of r, we get:
Area = π(5²)
Area = 25π
Area = 78.5 square centimeters
Therefore, the area of the circle with a circumference of 31.42 centimeters is approximately 78.5 square centimeters.
To learn more about circumference click here
brainly.com/question/28757341
#SPJ4
Antonio participa en la restauración del salón comunal. Pinta una pared de 15m² de la siguiente manera 4m² de color melón 5m² de color verde y 6m² de color blanco ¿Que fracción de la pared pinta de cada color ? EXPRESE CADA UNA DE LAS FRACCIONES DEL EJERCICIO EN NOTACION DECIMAL
Antonio painted about 27% of the wall with melon color, 33% with green color, and 40% with white color.
Antonio painted a wall with an area of 15 square meters. He painted 4 square meters with melon color, 5 square meters with green color, and 6 square meters with white color.
To find the fraction of the wall that Antonio painted with each color, we need to divide the area painted with each color by the total area of the wall:
Fraction painted with melon color = 4 / 15 = 0.2666... ≈ 0.27
Fraction painted with green color = 5 / 15 = 0.3333... ≈ 0.33
Fraction painted with white color = 6 / 15 = 0.4
So Antonio painted about 27% of the wall with melon color, 33% with green color, and 40% with white color.
Learn more about Fractions:
https://brainly.com/question/78672
#SPJ4
Complete Question:
Antonio is participating in the restoration of the communal room. He paints a wall of 15m² in the following way: 4m² of melon color, 5m² of green color, and 6m² of white color. What fraction of the wall does he paint with each color? EXPRESS EACH OF THE FRACTIONS IN THE EXERCISE IN DECIMAL NOTATION.
The diameter of a circle is 6 kilometers. What is the length of a 30 degree arc
Hence, in answering the stated question, we may say that As a result, the circle length of a 30-degree arc of a 6-kilometer-diameter circle is approximately 1.57 kilometers.
What is circle?Each spot that is a particular distance from yet another point creates a circle in the plane (center). As a result, it is a curve composed of points separated in the plane by a given distance. Furthermore, at all angles, it is circumferentially symmetric the about centre. Every couple of points in such a circle's closed, two at least plane is evenly spaced out from the "centre." A round symmetry line is formed by tracing a line through circle. Furthermore, at all angles, it is rotationally equal about the centre.
The circumference of a circle can be calculated using the formula C = d, where d is the circle's diameter. Because the diameter in this case is 6 kilometres, the circumference is:
C = d = (6) = 18.85 km (rounded to two decimal places)
1/12 = 30 degrees / 360 degrees
As a result, the length of the 30 degree arc is:
1.57 km length = (1/12) * C = (1/12) * 18.85 km (rounded to two decimal places)
As a result, the length of a 30-degree arc of a 6-kilometer-diameter circle is approximately 1.57 kilometres.
To know more about circle visit:
https://brainly.com/question/29142813
#SPJ1
need help with part A part B and part c
Answer:
4,20,C
Step-by-step explanation:
1/7 of 28 is 4
5/7 of 28 is 20
and if you multiply 4 times 5 you get 20
hope this helped
A shop sells bottles of orange juice for £1.60, but will take 20% off the total cost when you buy more than 20 bottles. How much does it cost, in pounds (£), to buy 40 bottles of orange juice?
Answer: 51.2 pounds
Step-by-step explanation: The problem states that 20% of the total cost is taken when you purchase more than 20 bottles.
We start by finding the total cost without the 20% off
Multiply the unit price by the number of bottles
[tex]1.60*40 = 64 pound[/tex]
Next use the discount, since we are getting 20% off we only have to pay 80% of it and 80/100 simplifies to 4/5 so we can just multiply 64 by that.
[tex]64*4/5 = 51.2[/tex]
The cost of buying 40 bottles of orange juice, with a 20% discount, is £51.20.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
The cost of one bottle of orange juice is £1.60.
To find the cost of 40 bottles of orange juice
40 bottles x 1.60 per bottle = £64
The total cost without the discount would be £64.
To calculate the discount, we can multiply the total cost by 20% or 0.20:
Discount = 20% x £64 = £12.80
The discount on 40 bottles of orange juice is £12.80.
To find the final cost, we need to subtract the discount from the total cost:
Final cost = Total cost - Discount
= £64 - £12.80
= £51.20
Therefore, the cost of buying 40 bottles of orange juice, with a 20% discount, is £51.20.
To learn more on Percentage click:
https://brainly.com/question/24159063
#SPJ2
HEELLPPPP!!!! quickly im being timed.
Which is better? 8"A" students out of 40, or 9 "A" student out of 50
The first group has a higher proportion of "A" students 0.2
To determine which is better, we need to compare the proportions of "A" students in each group.
For the first group, the proportion of "A" students is:
8/40 = 0.2
For the second group, the proportion of "A" students is:
9/50 = 0.18
Therefore, the first group has a higher proportion of "A" students, and we can say that it is "better" in terms of producing "A" students. However, it is important to note that this is just one aspect of performance and there may be other factors to consider as well.
To know more about proportion click here:
brainly.com/question/29185197
#SPJ4
Let X be a geometric random variable with so that P(X=k)=(1=p)^k-1 p over k=1,2,…and p is the probability of success taking a value between 0 and 1. a) Let
P(A) be the event that X assumes an even number. Compute P(A) . b) Compute the expectation and variance of e^X. c) Compute P(e^x >10)
0.0472 (approx.)
Anwer:
a) P(A) = P(X is even) = P(X = 2) + P(X = 4) + P(X = 6) + ...Let us take p = 1/3, thus P(X = k) = (1 - p)^(k - 1)p, for k = 1, 2, 3, .... Therefore, P(X = 2) = (2 - 1)p(1-p), P(X = 4) = (4 - 1)p(1 - p)^3, P(X = 6) = (6 - 1)p(1 - p)^5, ...So, we haveP(A) = [(2-1)p(1-p)] + [(4-1)p(1-p)^3] + [(6-1)p(1-p)^5] + ...= p(1-p)[1 + 3(1-p)^2 + 5(1-p)^4 + ...]= p(1-p)/(1-(1-p)^2)= 2p(1-p) = 2/9.b) For a geometric random variable, we have E(X) = 1/p and Var(X) = (1 - p)/p^2.The expected value of e^X is:E(e^X) = Σ e^k (1-p)^(k-1) p= p Σ [e^(ln(1-p))]^(k-1) = p Σ (1-p)^(k-1)= p/(1-(1-p)) = 1/pAnd the variance of e^X is:Var(e^X) = E((e^X)^2) - [E(e^X)]^2= E(e^(2X)) - (1/p)^2= Σ e^(2k) (1-p)^(k-1) p - 1/p^2= p Σ [e^(2ln(1-p))]^(k-1) - 1/p^2= p Σ (1-p)^(2(k-1)) - 1/p^2= p/[1-(1-p)^2] - 1/p^2= (2-p)/(p(1-p)^2).c) P(e^X > 10) = P(X > ln(10)) = (1-p)^[ln(10)] = 0.0472 (approx.)
Learn more about probability
brainly.com/question/11034287
#SPJ4