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3 years ago

A circle has a diameter of 57 in

Mathematics

1 answer:

goldenfox [79]3 years ago

7 0

Answer:

89.49 if is the entire circle and 44.745 if is a semi circle

Step-by-step explanation:

57 / 2 = 28.5 this is the ratio

28.5 * 3.14 = 89.49

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What is the solution to the equation below? Round your answer to twodecimal places.

elixir [45]

Answer:

D. That's wat u good when u punch it in the calculator

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3 years ago

Carolina leaves her house and walks 6 blocks she turns and heads east 8 blocks until she reaches matties house what is the short

s2008m [1.1K]

Answer:

10 blocks

Step-by-step explanation:

Given

$First = 6\ blocks$

$Second = 8\ blocks$ east

Required

Determine the shortest possible distance

To better explain my solution, I've added an attachment that illustrates her movement.

Using the attachment as a point of reference, the shortest distance is calculated by calculating the length of the hypotenuse using Pythagoras theorem.

So, we have:

$x^2 = 6^2 + 8^2$

$x^2 = 36 + 64$

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3 years ago

Landscape company sold 25 trees on Friday. There were a total of 125 trees in inventory. What percent of the trees were sold on

Arte-miy333 [17]

Answer: 20%

Step-by-step explanation:

First determine how many times 25 fits in 125. It’s 5 right. Now turn that into a percent. That leading to 20%

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3 years ago

Read 2 more answers

According to a certain website, wine critics generally use a wine-scoring scale to communicate their opinions on the relative qu

const2013 [10]

Answer:

$\bar x = 82$

$\sigma = 9.64$

Step-by-step explanation:

Given

$n = 12$

$87\ 91\ 86\ 82\ 72\ 91\ 60\ 77\ 80\ 79\ 83\ 96$

Solving (a); Point estimate of mean

To do this, we simply calculate the sample mean

$\bar x = \frac{\sum x}{n}$

$\bar x = \frac{87+ 91+ 86+ 82+72+91+60+77+80+79+83+96}{12}$

$\bar x = \frac{984}{12}$

$\bar x = 82$

Solving (b); Point estimate of standard deviation

To do this, we simply calculate the sample standard deviation

$\sigma = \sqrt{\frac{\sum(x-\bar x)^2}{n - 1}$

$\sigma = \sqrt\frac{(87-82)^2+ (91-82)^2+ ....+ (79-82)^2+ (83-82)^2+ (96-82)^2}{12-1}$

$\sigma = \sqrt\frac{1022}{11}$

$\sigma = \sqrt{92.91}$

$\sigma = 9.64$

<em>Note that: The sample mean and the sample standard deviation are the best point estimators for the mean and the standard deviation, respectively.</em>

<em>Hence, the need to solve for sample mean and sample standard deviation</em>

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3 years ago

What is the feet....

olya-2409 [2.1K]

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3 years ago