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3 years ago

Solve : -4x – 10 = -38

Mathematics

2 answers:

GREYUIT [131]3 years ago

6 0

Answer:

x=7

Step-by-step explanation: First what i did was move the constant(-10) to the right, and i switched the sign to a positive number (10). Next, i calculated -38+10, and i got -28 as my answer. I divided -4 from both sides, which cancels out the -4, and when you divide -28 and -4, you get 7.

Readme [11.4K]3 years ago

6 0

Value of x

<h3>Given:-</h3>

- 4x – 10 = -38

<h3>Solution:-</h3>

=> - 4x - 10 = -38

=> - 4x = -38 + 10

=> - 4x = -28

=> x = $\frac{-28}{-4}$

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3 years ago

Describe how to determine if two lines are parallel, perpendicular or neither. Give an example of a parallel line, a perpendicul

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In order to determine if two lines are parallel, perpendicular, or neither, look at their slopes. If the lines have the same slope, they are parallel. If the slopes are opposite reciprocals, then they are perpendicular. If the slopes of the lines are not any of those, then they are neither.

Parallel line: $y = \frac{2}{5} x$

Perpendicular line: $y = -\frac{5}{2} x$

Neither: $y = 3x$

Step-by-step explanation:

In order to determine if two lines are parallel, perpendicular, or neither, look at their slopes. If the slopes of the two lines are the same, then they are parallel. If the slopes of the two lines are opposite reciprocals, then they are perpendicular. If the slopes of the lines are not any of those, then they are neither.

The equation $y = \frac{2}{5} x+7$ is in slope-intercept form. The y is isolated and it's in $y = mx + b$ format. Whenever an equation is in slope-intercept form, the $m$ , or the coefficient of the x-term, represents the slope. So, the slope of the given line is $\frac{2}{5}$ . Therefore, use the rules listed previously to find lines that are parallel and perpendicular.

Parallel lines have the same slope, so an example of a parallel line would be $y = \frac{2}{5} x$ .

Lines that are perpendicular have slopes that are opposite reciprocals, so an example of a perpendicular line would be $y = -\frac{5}{2} x$ .

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3 years ago

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Answer:

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3 years ago

A rectangle has a length of 25x^3 and a width of 5x^2. Fkns the area.

Anna11 [10]

Answer:

Step-by-step explanation:

I hope you want the area.

Area = L * W

L = 24x^3

W = 5x^2

Area = 24x^3 * 5x^2

Area = 120 * x^(3 + 2)

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Note

When you multiply numbers or letters that have powers, if the base for both of them is the same, the powers are added.

The above answer is an example x^2 * x ^3 are letters (x) that are raised to the 2nd power and the 3rd power. You add the powers.

Numbers can do the same thing

2^5 * 2^3 = 2^8
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2^5 = 64
2^3 = 8

64 * 8 = 256

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