We can start by using the formula for the circumference of a circle to find the radius of the circle that the ride goes around:
C = 2πr
where C is the circumference and r is the radius.
Plugging in the given circumference, we get:
496.12 = 2πr
Solving for r, we get:
r = 496.12 / (2π) ≈ 78.97 yards
Now, we can use the formula for the surface area of a sphere:
A = 4πr^2
where A is the surface area and r is the radius.
Plugging in the value of r that we found, we get:
A = 4π(78.97)^2 ≈ 78,460.92 square yards
Therefore, the surface area of the sphere is approximately 78,460.92 square yards.
Let X be a normally distributed random variable. Given that the
mean is 2 and P(X < 2.24) = 0.7257, what is the variance?
a. 0.5266
b. None of the suggested answers are correct
c. 0.6
d. 0.4
e. 0.1
e [0.1}
We know that P(X < 2.24) = 0.7257. Also, the mean is 2.Let us calculate the variance of the given normal distribution random variable. Given that P(X < 2.24) = 0.7257, we have to find variance. Let us solve this question as follows:We know that mean of normally distributed random variable is μ and standard deviation is σ. As the mean is 2, μ = 2.We have the z-score: z = (2.24 - 2) / σFrom the normal distribution table, we can find out that P(Z < 0.80) = 0.7881Now, we have the following equation:0.7881 = (2.24 - 2) / σσ = 0.3158Finally, we can find the variance (σ^2) = 0.3158^2 = 0.0995 ≈ 0.1Therefore, the correct answer is option e. 0.1.
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Determine the value of x
Answer:
12 × 3 = 36
the top of the diagram will also equal 36
138-72=66
66 ÷2= 33
33÷3 =11
therefore x=11
Answer:
perimeter = 138
p=2(138+12)
p=2×150
p=300
x=300
Seven liters of cran-strawberry juice is added to an unknown amount of cran-orange juice to make a fruit punch. The cran-strawberry juice contains 65% cranberry juice. The cran-orange juice contains 50% cranberry juice. The fruit punch contains 60% cranberry juice. How much cran-orange juice does the fruit punch contain?
50%
The cran-orange juice contains 50% cranberry juice. The juice is 100% juice. Subtract 50% cranberry juice from 100% cran-orange juice and that leaves you with 50% orange juice.
Baxter’s Hardware has some followers on their social media account on Friday. On Saturday, the account gains 18 new followers. On Sunday, 20 people stop following the Baxter’s Hardware account. Baxter’s Hardware has 25 followers on Monday morning. The equation f + 18 - 20 = 25 represents the situation. Solve the equation. Be sure to show your work.
Please answer quick!!!
According to given equation Baxter’s Hardware had 27 followers on Sunday morning.
What is equation?
Equations can take many forms, including linear, quadratic, polynomial, trigonometric, and exponential, and can be used to model and solve a wide range of real-world problems.
The given equation is:
f + 18 - 20 = 25
Adding the numbers on the left side, we get:
f - 2 = 25
Adding 2 to both sides, we get:
f - 2 + 2 = 25 + 2
Simplifying, we get:
f = 27
Therefore, Baxter’s Hardware had 27 followers on Sunday morning.
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Identify which functions have complex roots by selecting the function names on the provided coordinate plane.
From the graphs in the given coordinate plane, the functions that have complex roots are function b, function d and function f.
Determining the functions that have complex rootsFrom the question, we are to determine the functions that have complex roots in the given coordinate plane.
In a quadratic graph, if the vertex of the quadratic function lies above the x-axis, and the parabola opens upward, there will be NO x-intercepts. The graph will have complex roots.
Also, if the vertex of the quadratic function lies below the x-axis, and the parabola opens downward , there will be NO x-intercepts.
The graph will have complex roots.
In the given coordinate plane, the functions that have complex roots are function b, function d and function f.
Hence, the functions b, d, and f have complex roots.
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Please ASAP Help
Will mark brainlest due at 12:00
Answer:
The answer is B
Step-by-step explanation:
Karen has two dogs. The larger dog weighs 1. 4 pounds more than the smaller dog. The combined weight of the two dogs is 12. 6 pounds
The weight of the smaller dog is 5.6 pounds.
Let the weight of the smaller dog be x, then,
The weight of the larger dog = 1.4 pounds.
The combined weight of the dogs = 12.6 pounds.
Therefore,
The sum of the weight of the larger dog and smaller dog = the combined weight of the dogs.
That is,
1.4 + x + x = 12.6
1.4 + 2x = 12.6
2x = 12.6 - 1.4
2x = 11.2
x = 11.2 ÷ 2
x = 5.6.
Hence, the weight of the smaller dog is 5.6 pounds.
?
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Your question is incomplete, and the complete question would be:
Karen has two dogs. the larger dog weighs 1.4 pounds more than the smaller dog. the combined weight of the two dogs is 12.6 pounds. what is the weight of the smaller dog?
The table contains the number of M&M’s of each color that were found in a case.
M&M Distribution
Blue Brown Green Orange Red Yellow Total
399 538 364 393 507 351 2552
Round answers to four decimal places, if necessary.
Find the probability of choosing a green or red M&M.
P(green or red) =
Find the probability of choosing a blue, red, or yellow M&M.
P(blue, red, or yellow) =
Find the probability of not choosing a brown M&M.
P(not brown) =
Find the probability of not choosing a green M&M.
P(not green) =
(a) P(green or red) = 0.3946
(b) P(blue, red, or yellow) = 0.7606
(c) P(not brown) = 0.7807
(d) P(not green) = 0.6559
What is probability?
Probability is a branch of mathematics that deals with the study of randomness and uncertainty in events. It is the measure of the likelihood or chance that an event will occur. Probability is expressed as a number between 0 and 1, where 0 indicates that the event will not occur and 1 indicates that the event will occur with certainty.
The total number of M&M's is 2552.
(a) P(green or red) = P(green) + P(red)
= 364/2552 + 507/2552
= 0.2692
(b) P(blue, red, or yellow) = P(blue) + P(red) + P(yellow)
= 399/2552 + 507/2552 + 351/2552
= 0.4917
(c) P(not brown) = 1 - P(brown)
= 1 - 538/2552
= 0.7891
(d) P(not green) = 1 - P(green)
= 1 - 364/2552
= 0.8575
Hence,
(a) P(green or red) = 0.3946
(b) P(blue, red, or yellow) = 0.7606
(c) P(not brown) = 0.7807
(d) P(not green) = 0.6559
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The pH of a solution is given by the formula pH=−logH+, where H+ is the concentration of hydrogen ions in moles per liter in the solution. Lye has a pH of 12.13. Use this formula to find the hydrogen ion concentration, [H+]. Round to one decimal place if necessary.
Given data:
pH of lye = 12.13
Using the formula pH = -log[H+], we have to find the hydrogen ion concentration, [H+].
Now, putting the given values in the formula, we get:
pH = -log[H+]
12.13 = -log[H+]
log[H+] = -12.13
[H+] = 10^-12.13 = 5.01187 x 10^-13
So, the hydrogen ion concentration, [H+] is 5.01187 x 10^-13 moles/liter. Therefore, the answer is 5.01187 x 10^-13.
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URGENTTTTT!!!!!!!!!! please complete the chart with the correct angle measures
(numbers 6-9 please!)
Answer:
9 hope u get it right budddyyyy
Weights of adult males.
The weights of adult individuals in a certain country are normally distributed with a population mean of μ=172 pounds and a population standard deviation of σ=29 pounds. Suppose n=36 individuals are sampled.
1)
What is the mean of the sampling distribution of the means?
The sampling distribution of the means has a mean of 172 pounds and a standard deviation of 4.83 pounds.
In the context of sampling distribution of the means, the standard deviation represents the degree of spread or variation of sample means around the true population mean.
To compute the standard deviation of the sampling distribution of the means, one typically divides the population standard deviation by the square root of the sample size.
Therefore, the standard deviation of the sampling distribution of the means is 29/√36 = 29/6 = 4.83 pounds.
So, the sampling distribution of the means has a mean of 172 pounds and a standard deviation of 4.83 pounds.
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i. How does a person's cycling rate show up in his or her equation?
A person's cycling rate can be expressed mathematically in the equation that describes their cycling motion. Specifically, the cycling rate can be represented by the frequency or number of revolutions per unit time (usually in seconds) that the person completes while cycling.
The equation that describes a person's cycling motion is typically a kinematic equation that relates the person's position, velocity, and acceleration as a function of time. One commonly used equation is:
d = vit + 1/2at^2
where d is the distance traveled by the person, vi is the initial velocity (usually zero), a is the acceleration, and t is the time elapsed.
The cycling rate can be incorporated into this equation by expressing the velocity as a function of the frequency of revolutions (f) and the radius of the wheel (r). This gives:
v = 2πrf
where v is the velocity of the cyclist, r is the radius of the wheel, and π is the mathematical constant pi (approximately 3.14).
Substituting this expression for v into the kinematic equation gives:
d = (2πrf)t + 1/2at^2
This equation shows how the person's cycling rate, represented by the frequency f, affects their distance traveled as a function of time. If the person increases their cycling rate, their velocity increases, and they will travel a greater distance in the same amount of time.
Equations with x in the denominator
Can someone please explain to me, step by step, how to answer this question.
Answer:
x=5/6
Step-by-step explanation:
lcm=6x
6xX1/2x+6xX1/3x=6xX1 (divide through)
3x1+2x1=6xX1
3+2=6x
5=6x
5/6=6x/6 (divide through)
x=5/6
Hope it help
2.4 m × 0.7 m Find the length volume = 1.512 meters³
The length of the rectangular prism with a volume of 1.512 m³ is equal to 0.9 meters.
How to calculate the volume of a rectangular prism?Mathematically, the volume of a rectangular prism can be calculated by using this formula:
Volume of a rectangular prism = L × W × H
Where:
L represents the length of a rectangular prism.W represents the width of a rectangular prism.H represents the height of a rectangular prism.By substituting the given parameters into the formula for the volume of a rectangular prism, we have;
Volume of a rectangular prism = L × W × H
1.512 = L × 2.4 × 0.7
Length, L = 1.512/1.68
Length, L = 0.9 meters.
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Complete Question:
Find the length of the rectangular prism shown below with a volume of 1.512 m³, a width of 2.4 m and a height of 0.7 m.
I dont know what 28x76 is
Answer:
28
x 76
----
168 (units digit of 76 multiplied by 28)
1408 (tens digit of 76 multiplied by 28)
----
2128
Therefore, 28x76 is equal to 2128.
Step-by-step explanation:
Solve 5(p−3q)<12 for q
The value of q in the question is q>-12/15
What is an inequality?In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions
The given inequality is 5(p−3q)<12
Opening the bracket we have
5p - 15q < 12
The solution can only be gotten if we assume p = 0
the substitute p=0 in the inequality to have
-15q < 12
dividing both sides by -15 to have
-15q/-15 < 12/-15
therefore q > 12/-15
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find the values of a, b, and c in the equation 5x^2-2=2x^2+10x+6
The value οf a = 3, b=-10, c-8
What is quadratic equatiοn?it's a secοnd-degree quadratic equatiοn which is an algebraic equatiοn in x. Ax² + bx + c = 0, where a and b are the cοefficients, x is the variable, and c is the cοnstant term, is the quadratic equatiοn in its standard fοrm. A nοn-zerο term (a 0) fοr the cοefficient οf x² is a prerequisite fοr an equatiοn tο be a quadratic equatiοn.
The x² term is written first, then the x term, and finally the cοnstant term is written when cοnstructing a quadratic equatiοn in standard fοrm. In mοst cases, the numerical values οf letters a, b, and c are expressed as integral values rather than fractiοns οr decimals.
The equatiοn given 5x²-2=2x²+10x+6
3x²-10x-8=0
values οf a = 3, b=-10, c-8
Hence the value οf a = 3, b=-10, c=8
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the daily high temperature for chattanooga is normally distributed with mean 79 and standard deviation 4. find the probability that a randomly chosen temperature is between 70 and 75.
The probability of randomly selecting a temperature between 70 and 75 is approximately 0.8291.
To find the probability that a randomly chosen temperature is between 70 and 75, we need to use the z-score formula as shown below:
z = (x - μ) / σ
Where:x = 70 and 75μ = 79σ = 4z1 = (70 - 79) / 4 = -2.25z2 = (75 - 79) / 4 = -1P(70 < x < 75) = P(-2.25 < z < -1)
To find the probability for the above inequality, we need to use a calculator. We know that the probability of the standard normal distribution is equal to 1.
Hence, P(-2.25 < z < -1) = Φ(-1) - Φ(-2.25) = 0.8413 - 0.0122 ≈ 0.8291. Therefore, the probability is about 0.8291.
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the basis for using a normal probability distribution to approximate the sampling distribution of the sample means and population mean is . a. the empirical rule b. chebyshev's theorem c. bayes' theorem d. the central limit theorem
The cοrrect answer tο the given questiοn is d. the central limit theοrem.
What is frequency distributiοn?The gathered data is arranged in tables based οn frequency distributiοn. The infοrmatiοn cοuld cοnsist οf test results, lοcal weather infοrmatiοn, vοlleyball match results, student grades, etc. Data must be presented meaningfully fοr understanding after data gathering. A frequency distributiοn graph is a different apprοach tο displaying data that has been represented graphically.
The basis fοr using a nοrmal prοbability distributiοn tο apprοximate the sampling distributiοn οf the sample means and pοpulatiοn mean is the central limit theοrem.
The central limit theοrem states that fοr a sufficiently large sample size, the sampling distributiοn οf the sample means will be apprοximately nοrmal, regardless οf the shape οf the pοpulatiοn distributiοn. This theοrem allοws us tο make statistical inferences abοut the pοpulatiοn mean based οn the sample mean using the prοperties οf the nοrmal distributiοn, such as the mean and standard deviatiοn.
Therefοre, the cοrrect answer tο the given questiοn is d. the central limit theοrem.
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Harrison has a rectangular plank of wood that is 29 inches long. He creates a ramp by resting the plank against a wall with a height of 14 inches, as shown. Using Pythagoras' theorem, work out the horizontal distance between the wallI and the bottom of the ramp. Give your answer in inches to 1 d.p.
Answer:
Horizontal distance between the wall and the bottom of ramp = 25.4 inches.
Step-by-step explanation:
Pythagorean theorem:
AB -> wall ; AB = 14 inches
AC -> Wooden plank ; AC = 29 inches
BC -> horizontal distance between the wall and the bottom of ramp(pank).
Pythagorean theorem,
[tex]\boxed{\bf base^2 + altitude^2 = hypotenuse^2}[/tex]
BC² + AB² = AC²
BC² + 14² = 29²
BC² + 196 = 841
BC² = 841 - 196
= 645
BC = √645
BC = 25.4 inches
Horizontal distance between the wall and the bottom of ramp = 25.4 inches.
Given,
Length = 29 inches
Height = 14inches
Here,
Pythagorean theorem:
AB -> wall ; AB = 14 inches
AC -> Wooden plank ; AC = 29 inches
BC -> horizontal distance between the wall and the bottom of ramp (plank).
Pythagorean theorem,
Base² + Perpendicular² = Hypotenuse²
BC² + AB² = AC²
BC² + 14² = 29²
BC² + 196 = 841
BC² = 841 - 196
= 645
BC = √645
BC = 25.4 inches
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Using Unit Rates to compare Ratios continued
5 Branden and Pete each play running back. Branden carries the ball 75 times for
550 yards, and Pete has 42 carries for 380 yards. Who runs farther per carry?
Pete did more his outcome was 9. 0 which was bigger the branden do
380 divided by 42 for your answer
Pete runs farther per carry, with a unit rate of 9.05 yards per carry compared to Branden's unit rate of 7.33 yards per carry.
A unit rate is a rate that has a denominator of 1. It is a ratio that compares a quantity to its unit of measurement.
To determine who runs farther per carry, we can use unit rates to compare the distance each player runs per carry.
For Branden:
Distance per carry is
= 550 yards ÷ 75 carries
Divide the numbers
= 7.33 yards per carry
For Pete:
Distance per carry is
= 380 yards ÷ 42 carries
Divide the numbers
= 9.05 yards per carry
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I choose 10 consecutive numbers. if I exclude one of the numbers the remaining 9 sum to 2023 which number did I exclude?
Answer:
the number 228
Step-by-step explanation:
Let's call the smallest number in the consecutive sequence "x". Then, the 10 consecutive numbers are x, x+1, x+2, x+3, x+4, x+5, x+6, x+7, x+8, and x+9.
If we exclude one of these numbers, then the sum of the remaining 9 numbers would be:
(x) + (x+1) + (x+2) + (x+3) + (x+4) + (x+5) + (x+6) + (x+7) + (x+8) or 9x + 36.
We know that the sum of the remaining 9 numbers is 2023, so we can set up the equation:
9x + 36 = 2023
Solving for x, we get:
9x = 1987
x = 221
Therefore, the smallest number in the consecutive sequence is 221, and the 10 numbers are 221, 222, 223, 224, 225, 226, 227, 228, 229, and 230.
If we exclude the number 228, then the sum of the remaining 9 numbers is 2023.
Use the equation y = 7x to complete the table. What are the missing values of
y?
O A. When x = 2, y = 16.
When x = 4, y = 30.
O B. When x = 2, y = 14.
When x = 4, y = 28.
C. When x = 2, y = 8.
When x = 4, y = 22
D. When x = 2, y = 12.
When x = 4, y = 24.
Using the equation y = 7x , we can compute that when x = 2, y = 14 and when x = 4 , y = 28. So, correct option is B.
The equation y = 7x relates the variables y and x, where y is a function of x. To compute the value of y for a given value of x, we simply substitute that value of x into the equation and solve for y.
When x = 2, we can substitute this value into the equation:
y = 7(2) = 14
Therefore, when x = 2, y = 14.
Similarly, when x = 4, we can substitute this value into the equation:
y = 7(4) = 28
Therefore, when x = 4, y = 28.
So, the correct option is B: When x = 2, y = 14 and when x = 4, y = 28.
In summary, to compute the value of y for a given value of x using an equation, we substitute that value of x into the equation and solve for y. In this case, when x = 2, y = 14, and when x = 4, y = 28, according to the given equation y = 7x.
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Find the missing length of the triangle. 7.2 feet, 9.6 feet, and c
By using pythagorean theorem, the length of the missing side is 12 feet.
What is the Pythagorean theorem?
Pythagoras' theorem is a fundamental principle in geometry that relates to the three sides of a right-angled triangle. It states that:
"In a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides."
In mathematical terms, if a, b, and c are the lengths of the sides of a right-angled triangle, where c is the hypotenuse, then the theorem can be written as:
[tex]c^2 = a^2 + b^2[/tex]
We can use the Pythagorean theorem to determine the length of the missing side if we know that the given sides form a right triangle.
In this case, we have two sides of the triangle given: 7.2 feet and 9.6 feet. Let's assume that c is the length of the hypotenuse.
If the triangle is a right triangle, then we can use the Pythagorean theorem to solve for c:
[tex]c^2 = 7.2^2 + 9.6^2[/tex]
[tex]c^2 = 51.84 + 92.16[/tex]
[tex]c^2 = 144[/tex]
[tex]c = \sqrt{144}[/tex]
c = 12 feet
Therefore, if the triangle is a right triangle, then the length of the missing side is 12 feet.
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In Cape Town there is a shortage of water and so water is getting more expensive. Water from the tap costs a flat rate of 15 plus per liter. Water from the store costs 3 per liter. At what number of liters would the cost from the store and the cost from the tap be the same ?
The cost of water from the store and the cost from the tap will be the same when the number of liters
reaches 7.5 liters.
Let's assume that the cost of buying 'x' liters of water from the store is the same as the cost of buying 'x' liters of water from the tap.
For water from the store, the cost per liter is 3, so the cost of buying 'x' liters of water from the store would be 3x.
For water from the tap, there is a flat rate of 15 plus per liter. So, the cost of buying 'x' liters of water from the tap would be 15 + x.
Now we can set up an equation to find the value of 'x' when the costs are equal:
3x = 15 + x
Simplifying this equation, we get:
2x = 15
x = 7.5
Therefore, the cost from the store and the cost from the tap would be the same at 7.5 liters.
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the height of a cylindrical pole is 12 feet and its circumference is 2 feet. a rope is attached to a point on the circumference at the bottom of the pole. the rope is then wrapped tightly around the pole four times before it reaches a point on the top directly above the starting point at the bottom. what is the minimum number of feet in the length of the rope? express your answer in simplest radical form.
The minimum number of feet in the length of the rope [tex]8\sqrt{(4\pi^2 + 36)}[/tex] feet.
To find the minimum number of feet in the length of the rope, we need to first calculate the height of the point on the circumference where the rope is attached. We can do this by using the formula for the circumference of a cylinder:
C = 2πr
where C is the circumference, r is the radius of the cylinder, and π is pi. Since we know that the circumference of the pole is 2 feet, we can solve for the radius:
2 = 2πr
r = 1/π
Next, we need to calculate the length of the rope that is wrapped around the pole. We know that the rope is wrapped around the pole four times, so the length of the rope is:
L = 4 × height of the pole
To find the height of the pole, we can use the Pythagorean theorem:
[tex]a^2 + b^2 = c^2[/tex]
where a is the radius of the pole, b is the height of the point where the rope is attached, and c is the length of the rope wrapped around the pole.
Solving for b, we get:
b = [tex]\sqrt{c^2 - a^2)}[/tex]
Substituting the values we know, we get:
b = [tex]\sqrt{((4\pi^2 + 12^2) - \pi^2)}[/tex]
b = [tex]\sqrt{sqrt(16\pi^2 + 144)}[/tex]
Finally, we can substitute this value into the formula for the length of the rope:
[tex]L = 4 * \sqrt{16\pi^2 + 144)}[/tex]
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An account with an initial balance of $3500 earns interest that is compounded annually. If no other deposits or withdrawals are made, the account will have a balance of $4390.40 after 2 years. Find the annual interest rate.
Therefore, the annual interest rate is approximately 12%.
What factors determine interest rates?How to compute interest is as follows: P x R x T is the formula for calculating interest. Principal Amount is P. (the beginning balance). rates of interest (usually per year, expressed as a decimal). T stands for the value T. (generally one-year time periods).
Let r be the annual interest rate as a decimal. Then the balance after 2 years is given by:
Balance = 3500(1+r)²
Setting this equal to $4390.40 and solving for r, we have:
4390.40 = 3500(1+r)²
Dividing both sides by 3500 and taking the square root, we get:
(1+r)² = 4390.40/3500 = 1.2544
Taking the square root of both sides, we get:
1 + r = √(1.2544) ≈ 1.12
Subtracting 1 from both sides, we get:
r ≈ 0.12 or 12%
Therefore, the annual interest rate is approximately 12%.
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How many terms are in the expression: 12p + 8m + 2
Answer: I THINK 4.
Step-by-step explanation:
Sorry if it is wrong!! :'D
HELPPPPPPPPPPPPpppppppppppppppppppppppp
Answer:C
Step-by-step explanation:
[tex](x-3)^2=5\\we \ should \ find \ square \ root \ of \ each \ side,\\\sqrt{(x-3)^2}=\sqrt{5}\\1)x-3=\sqrt{5}x=\sqrt{5}+3\\2)3-x=\sqrt{5}\\x=3-\sqrt{5}\\\\so,x=3\± \sqrt{5}[/tex]
If a1=5 and an=an-1-4 then find the value of a5
A5 has a value of -11. This can also be confirmed by looking at the words in order: 5, 1, -3, -7, and -11.
Using the given formula, we can find the value of the nth term by recursively applying the formula, starting from the first term:
a1 = 5
a2 = a1 - 4 = 1
a3 = a2 - 4 = -3
a4 = a3 - 4 = -7
a5 = a4 - 4 = -11
Therefore, the value of a5 is -11. We can also verify this by checking the sequence of terms: 5, 1, -3, -7, -11.
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