3 years ago

How to simplify 4x^-3 Is the answer 1/4a^3 ?

1 answer:

4 0

The exponent only applies to the x not the 4
so only the x has permission to move to the denominator
this leaves you with 4/x^3

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The Scale on a map shows that 1 inch represents 18 miles. The distance on the map between Olivia's town and her grandmother's to

Feliz [49]

Answer:

(20 miles/inch) * (3.5 inches) = 70 miles

Step-by-step explanation:

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3 years ago

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Solve for x <br><br> -7(1-8x)=105

Sunny_sXe [5.5K]

-7 + 56x = 105
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3 years ago

In preparing a certain ointment, a pharmacist used 28.35 g of zinc oxide instead of the 31.1 g called for. Calculate the percent

Vilka [71]

Answer: 9.70%

Step-by-step explanation:

The formula to find the percentage error is given by :-

$\%\text{ error}=\dfrac{|\text{Estimate-Actual}|}{\text{Actual}}\times100$

Given : Actual mass of zinc oxide used by pharmacist = 28.35 g

Estimated mass of zinc oxide used by pharmacist =31.1 g

Now, $\%\text{ error}=\dfrac{|31.1-28.35|}{28.35}\times100$

i.e. $\%\text{ error}=\dfrac{2.75}{28.35}\times100$

i.e. $\%\text{ error}=9.70017636684\approx9.70\%$

Hence, the percentage of error on the basis of the desired quantity.= 9.70%

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3 years ago

Evaluate 7(m-11) if m =11

melamori03 [73]

Answer:

Step-by-step explanation:

Plug in 11 for m. Remember to follow PEMDAS. First solve the parenthesis, then multiply.

m = 11

7(m - 11) = 7(11 - 11) = 7(0) = 0

0 is your answer.

7 0

3 years ago

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If f(x) = x/2 -3 and g(x) = 3x² + x - 6, find (f + g)(x). O A. 3x O B. 3x² + 3x-9 3x O C. 3.x2 + x - 3 O D. 4x2-9

Olenka [21]

Answer:

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Step-by-step explanation:

it would be that because the number is in the c acis

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3 years ago