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3 years ago

Find x if: 1. 125x^3=b^9 2.16x2=1

Mathematics

1 answer:

vitfil [10]3 years ago

4 0

1 x^3 = b^9 / 125

x = b^3 / 5

2. x^2 = 1 /2.16

x = sqrt 1/2.16

x = +/- 0.68 to nearest hundredth

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Write and graph an inequality that represents the numbers that are not solutions of each inequality.

o-na [289]

A.) x + 8 < 14
-8 -8
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3 years ago

10-d = -34-5d solve this equation

algol13

<h3><u>Explanation</u></h3>

Given the equation.

$10 - d = - 34 - 5d$

Solve the equation for d-term.

Because we cannot subtract or add up constants and variables, we simply move the same variable term to the same side and constant term to the same constant side.

$10 + 34 = - 5d + d \\ 44 = - 4d \\ \frac{44}{ - 4} = d \\ - 11 = d$

Answer Check

Substitute d = -11 in the equation.

$10 - ( - 11) = - 34 - 5( - 11) \\ 10 + 11 = - 34 + 55 \\ 21 = 21$

The equation is true for d = -11.

<h3><u>Answer</u></h3>

<u> $\large \boxed{d = - 11}$ </u>

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3 years ago

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How do I solve equations with fractions?

ratelena [41]

2y - 3/5 = 1/2

Add 3/5 to both sides.

2y = 1/2 + 3/5

Let's make the two fractions have common denominators.
Multiply 1/2 by 5/5 and 3/5 by 2/2.
1/2 * 5/5 = 5/10
3/5 * 2/2 = 6/10

2y = 5/10 + 6/10

Add the two fractions.

2y = 11/10

Divide both sides by 2.

11/10 ÷ 2
Use the Keep, Change, Flip method.
Keep 11/10, change ÷ to ×, and flip the 2 (reciprocal).
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X>1 if that helps with your problem

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VLD [36.1K]

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9c^2(c^2+4)

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3 years ago

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