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ella [17]
3 years ago
7

The perimeter of a circular park is 880 m. Find the area of the park.​

Mathematics
1 answer:
Ulleksa [173]3 years ago
7 0

Answer:

A≈61624.79m²

Step-by-step explanation:

hope you get ur answer ❤️

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What's greater 4 yards or 13 feet
ELEN [110]
That would be 13 feet because each yard is 3 feet so 3x4=12 (feet)
so the correct answer would be 13 feet.
3 0
3 years ago
What is the value of 4 1/2 - 2 3/4
Ivenika [448]

Answer: 1 3/4

Step-by-step explanation: First, convert 4 1/2 and 2 3/4 to have like denominators.

4 1/2 = 4 2/4 because 1 x 2 = 2 and 2 x 2 = 4 = 2/4

2 3/4 stays the same.

Now, subtract 4 2/4 - 2 3/4             (4 x 4 = 16 + 2 = 18) and (2 x 4 = 8 + 3 = 11)

18/4 - 11/4 = 7/4 or 1 3/4

3 0
3 years ago
Toll Brothers is a luxury home builder that would like to test the hypothesis that the average size of new homes exceeds 2,400 s
boyakko [2]

Answer:

Since the pvalue of the test is 0.09 > 0.01, we do not reject the null hypothesis that the average size of new homes is of 2400 square feet.

Step-by-step explanation:

Toll Brothers is a luxury home builder that would like to test the hypothesis that the average size of new homes exceeds 2,400 square feet. Test to see if the average size of new homes exceeds 2,400 square feet.

At the null hypothesis, we test if the average is of 2400 square feet, that is:

H_o: \mu = 2400

At the alternate hypothesis, we test if the average is greater than 2400 square feet, that is:

H_a: \mu > 2400

The test statistic is:

Since we have the standard deviation for the sample, we use the t-distribution.

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.

2400 is tested at the null hypothesis:

This means that \mu = 2400

A random sample of 36 newly constructed homes had an average of 2,510 square feet with a sample standard deviation of 480 square feet.

This means that n = 36, X = 2510, s = 480

Test statistic:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{2510 - 2400}{\frac{480}{\sqrt{36}}}

t = 1.375

Pvalue of the test and decision:

The pvalue of the test is the probability of finding a sample mean of at least 2510, which is the pvalue of t = 1.375 with 36 - 1 = 35 degrees of freedom, using a one-tailed test.

With the help of a calculator, this pvalue is of 0.09

Since the pvalue of the test is 0.09 > 0.01, we do not reject the null hypothesis that the average size of new homes is of 2400 square feet.

6 0
2 years ago
Explain why 4xy and 5x²y are not like terms.
Gelneren [198K]
They aren’t like terms became 5x^2y has an exponent

We could have the numbers
5x^2 and 5x and they wouldn’t be like terms because one has an exponent
3 0
2 years ago
Find the unknown angle<br> 60°<br> Xº<br> 30°
densk [106]

Answer:

x = 90°

Step-by-step explanation:

Hello!

The sum of angles on a straight line is 180°.

To find the value of angle x°, we can subtract all the given angles form 180°.

<h3>Find x</h3>
  • 180° - 60° - 30° = x°
  • 180° - 90° = x°
  • 90° = x°

The value of x is 90°.

3 0
2 years ago
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