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3 years ago

For which of the following situations would a sample be used versus a population? Select all that apply.

Mathematics

1 answer:

muminat3 years ago

8 0

Answer:

Step-by-step explanation:

A biologist is interested in the average wingspan of hawks in the United States.

and

A researcher is interested in the average birth weight of newborn babies born in the United States.

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The sum of 3 consecutive odd numbers is 51. what is the second number in this sequence

cricket20 [7]

Answer:

Step-by-step explanation:

since it is in the middle you can just divide by 3 since one will be greater and one will be less so 51/3=17

6 0

3 years ago

Read 2 more answers

Use the law of cosines to find the value of cos theta. round your answer to two decimal places

REY [17]

<u>Answer:</u>

The correct answer option is B. 0.21.

<u>Step-by-step explanation:</u>

We are to find the value of $cos \theta$ using the law of cosines.

We know that the formula of the cosine rule is given by:

$c ^ 2 = a ^ 2 + b ^ 2 - 2 a b cos C$

So substituting the given values in the above formula:

$10.9 ^ 2 = 5.8 ^ 2 + 10.5 ^ 2 - 2 (5.8) (10.5) cos C$

$118.81=33.64+110.25-121.8cosC$

$118.81 - (33.64+110.25) = -121.8cosC$

$118.81-143.86=-121.8cosC$

$cosC=\frac{-25.05}{-121.8}$

cos C = 0.21

7 0

3 years ago

25 decreased four times n

disa [49]

The answer is 4n-25
4 times n is 4 n

and 25 decreased or subtracted from the 4n
thus the answer is 4n-25

8 0

3 years ago

Read 2 more answers

Helppppppppppppppppppppppp

Vikentia [17]

Step-by-step explanation:

area of trapezoid=(a+b)×h divided by 2

=(9+19)×4 divided by2

=28×4 divided by2

=112 divided by 2

=56m square

6 0

3 years ago

Find the area of the region bounded by the graphs of f(x)= x^3 + x^2 -6x and

Blizzard [7]

Might be A not sure though

6 0

3 years ago