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Alexandra [31]
2 years ago
5

Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is th

e Z-score of a size 8.5?
Mathematics
1 answer:
bogdanovich [222]2 years ago
3 0

Answer:

-1

Step-by-step explanation:

From 10 to 8.5   is  - 1.5  

   this is -1   S.D.   below the mean

(8.5 - 10)/1.5 = -1

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Find the surface area. Round your answers to the nearest hundredths if necessary.
Likurg_2 [28]
Sa=452.39 452.39=4πr² -12.56 on both sides (12.56 is pi times 4) √439.83=√r²  20.97 FOR VOLUME v=4/3πr³ 4*π20.97³÷3 38626.37
hopes that helps
7 0
4 years ago
I would really appreciate if any of you guys can help me on this please and thank you !!
love history [14]

Answer:

1.

a = 1  b = 3  c = 11

2.

a = 1  b = -7  c = -11

3.

a = 1  b = 4  c = -9

4.

a = 3  b = -1  c = 16

5.

a = 1  b = 0  c = -9

6.

a = 2  b = 5  c = 0

7.

a = -4  b = 0  c = -3

8.

a = 6  b = 0  c = 0

9.

a = -1  b = 1  c = 0

Hope this helps took me a long time to type

3 0
3 years ago
Round 12.23 to the nearest tenth.
leva [86]

Answer:

12.2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which function represents the quadratic function f(x) = x^2 after a vertical stretch by a factor of number 2?
Zielflug [23.3K]
C is your answer. The coefficient on the x value is always a stretch factor.
3 0
2 years ago
Equivalent ratio for 12/9
Oliga [24]
In order to make a fraction a ratio, you must simplify it if it is needed. So for 12/9, you can divide 3 from the numerator and denominator. That would equal 4/3. Now that it is simplified, you can make it into a ratio. (can be using ":" or using the word "to") 
One way it can be used is --> 4:3
Another way --> 4 to 3 
Good luck!
8 0
4 years ago
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