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vovikov84 [41]
2 years ago
13

A researcher is testing a claim that the mean wing span of bald eagles mean wing span is 22ft. He takes a simple random sample o

f 40 bald eagles and gets a sample mean of 24.6ft and a sample
standard deviation of 3.5ft. Find the test statistic, t=
Mathematics
1 answer:
solong [7]2 years ago
7 0
356 is the answer I think
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40 x 5280 = 211200 feet per hour

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2 years ago
Find the cosine ratio of angle ?. hint: use the slash symbol ( / ) to represent the fraction bar, and enter the fraction with no
Andru [333]

We are given that the angle a is the right angle. So let us work from this.

ab = 12 (the vertical side of the triangle)

bc = 13 (which if drawn can be clearly observed to be the hypotenuse) = the side opposite to angle a

ca = 5 (the horizontal side of the triangle)

 

Since we are to find for the cosine ratio of angle c or angle θ, therefore:

cos θ = adjacent side / hypotenuse

cos θ = ca / bc

cos θ = 5 / 13

 

Check out the attached image below for the illustration of the triangle.

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3 years ago
What is an equation that passes through the point (-2,-3) and is parallel to the line 5x+2y=14
Alekssandra [29.7K]

Answer:

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Hope this helps! If you need an explanation, I've got you.

6 0
3 years ago
Please help! I will mark as brainliest IF answer is right. <3
Ksju [112]

Answer:

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or

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if accepted:

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8 0
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Multiply. Write the answer in simplest form.<br> 1/2 x 3/5 x 4/9
dexar [7]

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4/75

Step-by-step explanation:

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2 years ago
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