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sweet-ann [11.9K]
3 years ago
9

A school psychologist at a large high school took a random sample of 16 students and asked how much sleep they get on a typical

weekend night. The sample data were roughly symmetric with a mean of 8.75 hours and a standard deviation of 1.5 hours
Mathematics
1 answer:
puteri [66]3 years ago
7 0

Answer:

8.75 +/- 0.657

Step-by-step explanation:

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If 3x plus 2 equals 90 then what is the value of x
Firdavs [7]

Hello!

3x+2=90

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓↓

First you had to subtract by 2 from both sides of the equation.

3x+2-2=90-2

Simplify

3x=88

Then you divide by 3 from both sides of the equation.

\frac{3x}{3}=\frac{88}{3}

Simplify it should be the correct answer.

x=\frac{88}{3}

Answer⇒⇒⇒⇒⇒x=88/3

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

4 0
3 years ago
help please<br> Answer options:<br><br> A. 18.86<br> B. 120<br> C. 13.37<br> D. 6.43
SVETLANKA909090 [29]
What is the question?
5 0
3 years ago
Can someone plz help me :( !!
Alina [70]

Answer:

123

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
Quadrilateral a'b'c'd' is the result of dilating quadrilateral abcd about point p by a scale factor of
Karolina [17]

The two statements about the dilated quadrilateral a'b'c'd' are false.

bc and bc' are on the same line ( False)

The length of the cd and c'd' are the same. (False)

<h3 />

The complete question is attached with the answer below.

<h3>What is dilation?</h3>

Dilation is the process of increasing the size of an object while maintaining its shape. Depending on the scale factor, the object's size can be increased or decreased.

Here the quadrilateral abcd is dilated by the scale factor 5 / 2.So the new quadrilateral is a'b'c'd'.

The given two statements are false:-

bc and bc' are on the same line ( False)

The length of the cd and c'd' are the same. (False)

<h3 />

To know more about dilation follow

brainly.com/question/3457976

#SPJ1

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2 years ago
Please help me!!!!!!! I WILL GIVE BRAINLIEST!!
katen-ka-za [31]
6- 20
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3 years ago
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