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tatyana61 [14]
3 years ago
12

Z ÷ 12 = 9. Explain With Detail Plz

Mathematics
2 answers:
kifflom [539]3 years ago
8 0
It simple asks you to multiple 9 by 12.

Z is a variable / a setting unknown number is divided by 12 to give you 9

To find
Z you would have to take the ÷12 to the opposite side crossing over the = sign

which will make it the ÷ sign to change it the opposite which is × ( the opposite of ÷ is × and the opposite of - is + )

You are now left with
Z = 9 × 12

and you know that 9 × 12 is 108 which makes Z, 108.

Z = 108
Elena-2011 [213]3 years ago
4 0
Z=9x12
z=108

.........
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Answer:

78

Step-by-step explanation:

112-18-16=78

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Is what I have correct answer right away 100 points!!!!!
Semmy [17]
That's correct, because I learned it in math already


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In a study of automobile collision insurance costs, a random sample of n = 35 repair costs of front-end damage caused by hitting
laiz [17]

Answer: The maximum error = $105.76.

Step-by-step explanation:

Formula to find the maximum error:

E= z^*\dfrac{\sigma}{\sqrt{n}}

, where n= sample size.

\sigma = Population standard deviation

z*= Critical value(two-tailed).

As per given  , we have

\overline{x}=1438

n= 35

\sigma=269

For 98% confidence  , the significance level = 1-0.98=0.02

By z-table , the critical value (two -tailed) =z^* = z_{\alpha/2}=z_{0.01}=2.326

Now , the maximum error = E= (2.326)\dfrac{269}{\sqrt{35}}

E= (2.326)\dfrac{269}{5.9160797831}

E= (2.326)\times45.4692989044=105.761589252\pprox105.76

Hence, With 98% confidence level , the maximum error = $105.76.

4 0
3 years ago
An angle measures 32° more than the measure of its supplementary angle. What is the measure of each angle?
ValentinkaMS [17]

Answer:

29°; 61°

Step-by-step explanation:

Let one angle  = x°

Other angle = (x + 32)°

x + x + 32 = 90   {given they are complementary}

2x + 32 = 90

2x = 90 -32

2x = 58

x = 58/2

x = 29

One angle  = 29°

Other angle = 29 + 32 = 61°            

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