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oksano4ka [1.4K]

3 years ago

10

A courtyard in the shape of a right triangle is set in the middle of three square office buildings, with one office building alo

ng each side. Which statement is true about the three office buildings?

1 answer:

oksian1 [2.3K]3 years ago

3 0

Answer:

The area of Building C minus the area of Building B equals the area of Building A.

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In a random sample of 257 adult Orcas in the wild, there were 159 whose total body length was 28 feet or longer. Create a 98% co

REY [17]

Answer:

98% Confidence interval: (0.5483,0.6891)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 257

Number of adults total body length was 28 feet or longer, x = 159

$\hat{p} = \dfrac{x}{n} = \dfrac{159}{257} = 0.6187$

98% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.02} = 2.326$

Putting the values, we get:

$0.6187\pm 2.326(\sqrt{\dfrac{0.6187(1-0.6187)}{257}})\\\\ = 0.6187\pm 0.0704\\\\=(0.5483,0.6891)$

is the required 98% confidence interval.

7 0

3 years ago

Any help please and thank you (picture included)

lina2011 [118]

Answer:

15 units

Step-by-step explanation:

1. Find the corresponding lengths of the triangles.

9/x = x/ (9+16)

9/x = x/25

2. Solve for x.

Multiply both sides by x.

9 = x²/25

Multiply both sides by 25.

225 = x²

Square root both sides to solve for x.

√225 = √x²

x = 15

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2 years ago

Daniel is on an airplane flying to a destination 825 miles away. After one hour, the pilot announces that the plane is 495 miles

Harrizon [31]

The correct answer is B

8 0

3 years ago

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One of the two hypotheses is to be chosen based on an observation of the random variable X. If H0 is true, then X is exponential

Kaylis [27]

Answer:

H1 is true

Step-by-step explanation:

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3 years ago

BRAINLIEST AND LOTS OF POINTS! Help please, and quickly!!!!!

Zigmanuir [339]

The answer is 5/9

Hope this helps

8 0

1 year ago

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