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dangina [55]
3 years ago
11

Please help me with this!!

Mathematics
2 answers:
Katarina [22]3 years ago
7 0
It is 22 because
180°-(68+90) = 22
Anni [7]3 years ago
5 0
The answer is 22, 180-158=22
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kherson [118]
The relationship is not proportional because the boys and girls are in different grades and they are in different activities.
5 0
4 years ago
Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was
Ivan

Answer: \pm0.1706

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of \alpha:0.05 : z_{\alpha/2}= 1.96

Sample mean : \overline{x}=2.5

Standard deviation : \sigma= 0.5

We assume that this is a normal distribution.

Margin of error : E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706

Hence, the  margin of error is \pm0.1706

7 0
3 years ago
Can someone please tell me how to solve this?: -27 , exponent 2/3<br><br><br><br> -27^2/3
Vlada [557]
So this is asking the cube root of -27 then squared.
Cube root of -27=-3
And -3^2=9

So I believe your answer is 9
4 0
3 years ago
A small theater had 9 rows of 25 chairs each. An extra 7 chairs have just been brought in. How many chairs are in the
Alchen [17]

Answer:

232

Step-by-step explanation:

9 x 25 = 225   225 + 7 = 232

another way to find it

9 x 20 = 180   9 x 5 = 45   180 + 45 = 225 + 7 = 232

8 0
3 years ago
1 1/3 x 5/8<br><br> A.3/4<br> B.4/5<br> C.5/6<br> D.5/8
Dmitriy789 [7]
The answer is 5/6, hope this helps
5 0
3 years ago
Read 2 more answers
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