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djyliett [7]
4 years ago
9

Lindsey wants to find out, on average, how many hours per week seventh grade students at her school spent studying. She decided

to survey the students sitting in her social studies class to find out. Is her sample likely to be representative of all seventh grade students at her school? Why or why not?
Mathematics
1 answer:
Tresset [83]4 years ago
8 0
The study should is representative :)
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Please help this question
Pani-rosa [81]

Answer:

t should also be 82

Step-by-step explanation:

Because they are the same angle.

Sorry in the chance i am wrong. :D

6 0
3 years ago
Factor completely the given polynomial
kherson [118]
I like to always factor out the negative first, so that we will have our first term be positive:
So it can be rewritten as this: -(x^2-3x-28)

Then we need to find two numbers that multiply to -28, but add up to -3.
Those two numbers are -7 and +4.

So we can rewrite as: -(x-7)(x+4)
6 0
3 years ago
Find the value of X​
Feliz [49]

Answer:

x = 28

Step-by-step explanation:

12/8 = (x-7)/14

Cross multiply.

8(x-7) = 12 × 14

Expand and multiply.

8x - 56 = 168

Add 56 on both sides.

8x = 168 + 56

8x = 224

Divide 8 into both sides.

x = 224/8

x = 28

3 0
3 years ago
Read 2 more answers
Find the 9th term geometric sequence 1,1/2,1/2^2
valentinak56 [21]

Answer:   t_9=\dfrac{1}{2^8}

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

t_n=t_1\times r^{n-1}\\\\Given: t_1=1,\quad r=\dfrac{1}{2}\\\\\\t_9=1\times\bigg(\dfrac{1}{2}\bigg)^{9-1}\\\\\\.\quad =\large\boxed{\dfrac{1}{2^8}}

3 0
3 years ago
a farmer has a rectangular field that measures 125 feet by 200 feet. He wants to enclose the field with a fence. What is the tot
grandymaker [24]
He needs to fence the entire perimeter, so all you have to do is find the perimeter. P= S+S+S+S, which is 125, 200, 125, and 200. Add them together and you get 650, so he needs 650 feet of fence.
4 0
3 years ago
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