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3 years ago

2.Solve -75 = -25a. A. 3 B. -100 c. -50

Mathematics

1 answer:

Step2247 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

-75=-25a

Divide both sides by -3:

3=a

a=3

The answer is choice A

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meriva

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3 years ago

line j is perpendicular to lines m and n. if the products of the slope of all three lines is -8, what is the slope of line j?

jeka94

Answer:

the slope of line j is -1/8, the slope of lines m and n are both 8.

Explanation step by step:

Suppose j is the slope of line j, m the slope of line m and n the slope of line n. Since:

1. line j is perpendicular of line m, so j*m= -1

2. J is perpendicular of line n, so j*n=-1

3. m and n and parallel so m=n

As we want to know the slope of j we clear the equations presented to us in order to find it.

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we clear j; $n^{2} * j = -8 \\ j =\frac{-8}{n^{2} }$

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3 years ago

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Solve the initial-value problem<br><br> y' = x^4 - \frac{1}{x}y, y(1) = 1.

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The ODE is linear:

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3 years ago