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Natali5045456 [20]
3 years ago
5

A teacher needs to find out how many seventh-grade students will be going on a field trip. Which best describes the population t

hat the teacher should survey?
A) the parents of all the students in the school
B) the parents of the seventh-grade students
C) each teacher in the school
D) each student in the school
Mathematics
1 answer:
kherson [118]3 years ago
4 0

Answer:

In statistics , the population is the set of all possible observations as per the researcher's objective .

For example if a researcher wants to find the average height of teenager of age group between 13 year and 15 years in Seattle, he will need the data of the population of height of teenager of age group between 13 year and 15 years in Seattle.

Here , A teacher needs to find out how many seventh graders will be going on a field trip.

Clearly as per her objective she need the data of all seventh graders .

So , the best describes the population that the teacher should survey would be : All seventh graders.

Jeanashupp

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

In order to solve this problem, one must use the right triangle trigonometric ratios. Right triangle trigonometric ratios are ratios between the sides and angles of a right triangle. These ratios are the following:

sin(\theta)=\frac{opposite}{hypotenuse}\\\\cos(\theta)=\frac{adjacent}{hypotenuse}\\\\tan(\theta)=\frac{opposite}{adjacent}

Bear in mind that each side is named relative to the angle that one is describing in the triangle. Thus, the name of the side can change based on the angle. Please note that this only applies to the (opposite) and (adjacent) sides. The (hypotenuse) is the same no matter the angle, as the hypotenuse is the side opposite the right angle.

In this triangle, one is asked to find an angle, one is given the length of the side opposite the angle, as well as the hypotenuse. Thus, one should use the ratio of sine (sin), to solve for the unknown angle.

sin(\theta)=\frac{opposite}{hypotenuse}

Substitute,

sin(\theta)=\frac{23}{28}

Inverse operations,

\theta=sin^-1(\frac{23}{28})

Simplify,

\theta=55.228056

3 0
3 years ago
Vestion 9.
blondinia [14]

Answer:

In order for the statement to be true, the value of x has to be 19.

Step-by-step explanation:

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3x - 9 - 16 = 2x - 16 + 10

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Three bowls and four mugs can hold a total of 2.52 litres of water. Each bowl can hold
sergiy2304 [10]

9514 1404 393

Answer:

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Step-by-step explanation:

If a mug can hold a volume of m litres, then a bowl can hold a volume of m+0.07 litres. The total volume held by the given containers is ...

  3(m +0.07) +4m = 2.52

  7m +0.21 = 2.52 . . . . . . . . simplify

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Each mug can hold 0.33 litres.

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Answer:

A B C

Step-by-step explanation:

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Hope this helps!
7 0
3 years ago
Read 2 more answers
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