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3 years ago

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

5 0

Answer:

If you are looking for x your answer will be x=2

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Rewrite the expression as an equivalent power with a negative exponent.<br> a. 1/49<br> b. 27/125

Hunter-Best [27]

$\dfrac{1}{49}=\left(\dfrac{1}{7}\right)^2=7^{-2}\\
\dfrac{27}{125}=\left(\dfrac{3}{5}\right)^3=\left(\dfrac{5}{3}\right)^{-3}$

3 0

3 years ago

NEED DESPERATELY. PLEASE!!! A BIG REWARD IS AT STAKE. BRAINLIEST WILL BE GIVEN. (Keep out for more problems with rewards from me

Rom4ik [11]

Answer:

My total savings was = $58.33

Step-by-step explanation:

Given:

12% of my savings was = $7.00

To find my total savings.

Solution:

Let the total savings in dollars be = $x$

12% of the total savings will be = $12\%\ of\ x$

12% of my savings was = $7.00

So, we have:

$12\%\ of\ x=7$

$0.12x=7$

Solving for $x$ to get my total savings.

Dividing both sides by 0.12

$\frac{0.12x}{0.12}=\frac{7}{0.12}$

∴ $x=58.33$

Thus, my total savings was = $58.33

7 0

3 years ago

Assume a random sample of size n is from a normal population. Assume a single sample t test is used to for hypothesis testing. T

valentinak56 [21]

Answer:

True

Step-by-step explanation:

Type I and Type II are not independent of each other - as one increases, the other decreases.

However, increases in N cause both to decrease, since sampling error is reduced.

A small sample size might lead to frequent Type II errors, i.e. it could be that your (alternative) hypotheses are right, but because your sample is so small, you fail to reject the null even though you should.

5 0

3 years ago

How much is f(10) if f=x^2-2

dangina [55]

To find this value, simply substitute the number 10 in for x in your equation:

$f(x) = x^2 - 2$

$f(10) = 10^2 - 2 = \boxed{98}$

The answer is 98.

8 0

3 years ago

What is 40 1/3 divided by 50

solong [7]

121/150 or 0.0806. The 6 is repeating itself.

8 0

3 years ago

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