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3 years ago

What is the slope of a line that is perpendicular to 5 x – 2 y = 1 ?

Mathematics

1 answer:

lord [1]3 years ago

4 0

Answer:

The slope is 5/2

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Dovator [93]

Answer:

I’ll neve switch on u dxxdy

Step-by-step explanation:

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3 years ago

Could someone explain why the value of x is (-2).

irina [24]

Answer:

$x=-2$

Step-by-step explanation:

Given equation:

$2x^3+16=0$

To solve for the unknown variable x, apply arithmetic operations to isolate the variable.

Subtract 16 from both sides:

$\implies 2x^3+16-16=0-16$

$\implies 2x^3=-16$

Divide both sides by 2:

$\implies \dfrac{2x^3}{2}=\dfrac{-16}{2}$

$\implies x^3=-8$

Take the cube root of both sides:

$\implies \sqrt[3]{x^3}=\sqrt[3]{-8}$

$\implies x=-2$

When taking the cube root of a negative number, the result will be negative. To understand why, examine what happens when we cube a negative number.

When a number is cubed, it is multiplied by itself, then by itself again.

When multiplying a negative number by another negative number, the result is always positive.

When multiplying a positive number by a negative number, the result is always negative.

Therefore:

$\begin{aligned}\implies (-2)^3 &= -2 \cdot -2 \cdot -2\\ & = 4 \cdot -2\\& = -8\end{aligned}$

So if -8 is cube rooted, the result is -2.

8 0

2 years ago

Read 2 more answers

Please can someone help

san4es73 [151]

Answer:

x=6

Step-by-step explanation:

2x - 5 = 7

Add 5 to each side

2x-5+5 = 7+5

2x= 12

Divide by 2

2x/2 = 12/2

x = 6

7 0

4 years ago

Read 2 more answers

0.099

ioda

The answer to your question is 0.469

3 0

3 years ago

¿que son los numeros naturales?

Inga [223]

Huh? Someone translate this for me plz

8 0

3 years ago

Read 2 more answers