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melisa1 [442]
2 years ago
12

A set of middle school student heights are normally distributed with a mean of 150 centimeters and a standard deviation of 20 ce

ntimeters. Uma is a middle school student with a height of 165 centimeters. What proportion of student heights are higher than Uma's height?
Mathematics
1 answer:
dybincka [34]2 years ago
5 0

Answer:

0.2266

Step-by-step explanation:

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Im having a hard time on this question and I hope you can help.
Masja [62]

The answer would be x ≠ 0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First start with the left side, doing distributive property

So... -2(x) = -2x and -2(5) = -10 Therefore on the left side you now have -2x -10

Next do the same on the right side

-2(x) = - 2x and -2(-2) = 4 so you have -2x + 4 + 5 and you add 4 and 5, leaving you with -2x + 9

Now that you have simplified both sides the problem now looks like this:

-2x - 10 = -2x + 9

Because you have equal terms on both sides (-2) those cancel out so you have -10 = 9

Just from looking at this we know that the statement is false because -1o does not equal 9

*The symbol, "≠" means not equal to"

3 0
3 years ago
Read 2 more answers
Linear function 1 has the equation y=16-2. Linear function 2 passes through the points (4,2) and (-4,k). What must be the value
Usimov [2.4K]

Replace with 16 − 2 and simplify. 1 , y = 16−2,2, (4,2), (−4,k), k, x-intercepts

5 0
3 years ago
3 + 12 + 48 + 192 + ...<br> Whats the answer
Alex
The sequence is to take the previous number and multiply by 4, so the sequence is

3 12 48 192 768 3072 12288

add them all up and you get 16383
8 0
2 years ago
Read 2 more answers
-6-7(c+10)<br><br> A. 64-7c<br> B. -76-7C<br> C. 4-13C<br> D. -16-13c<br><br> Help?
Maurinko [17]

Answer:

B. -76-7C

Step-by-step explanation:

-6-7(c+10)

Distribute the 7

-6-7c-70

Combine like terms

-7c-76

6 0
2 years ago
It takes Ivanna 3 minutes to complete 2 problems on her math homework . How long will it take Ivanna to complete 12 problems?
IRINA_888 [86]
18 minutes because 6*2 is 12 and 3*6 is 18. it will take 6 minutes to do 4 problems, 9 minutes to do 6 problems , 12 minutes to do 8 problems, 15 minutes to do 10 problems, and 18 minutes to do 12 problems
7 0
2 years ago
Read 2 more answers
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