3 years ago

When evaluating (6x+9)^2 - 5 for x = 1, the given value of 1 is substituted for what part of the expression?

2 answers:

7 0

The answer is C, I took the test.

Naya [18.7K]3 years ago

5 0

The correct answer would be C. The variable

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matrenka [14]

It would be .75x=25-13
So .75x=12
x=16 because .75×16=12

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3 years ago

Akimi4 [234]

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poizon [28]

Im pretty sure its the radius of the circle....

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3 years ago

Zanzabum

Answer:

$\sigma=547.1125$

Step-by-step explanation:

-The margin of error is calculated using the formula:

$ME=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}\\\\$

-We substitute the values, n=900 and ME=30 in the formula to solve for standard deviation:

$ME=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}\\\\\\30=1.645\times\frac{\sigma}{\sqrt{900}}\\\\\sigma=\frac{30^2}{1.645}\\\\=547.1125$

Hence, the population standard deviation is 547.1125

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3 years ago

Sonbull [250]

Answer is -5.

Explanation- Since t equals 0. You put 0 in place of every t.

0(2)- 2(0)- 5 =
0-0-5= -5

8 0

3 years ago