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3 years ago

Complete the solution of the equation find the value of y when x equals 2. -8x - 5y = -1

Mathematics

1 answer:

tatuchka [14]3 years ago

6 0

Answer: y = -3

Step-by-step explanation:

-8x - 5y = -1

+8x +8x

-5y = 8x - 1

÷-5 ÷-5 ÷-5

y = $-\frac{8}{5}x + \frac{1}{5}$

y(2) = $-\frac{8}{5}(2) + \frac{1}{5}$

= $-\frac{16}{5} + \frac{1}{5}$

= $-\frac{15}{5}$

= -3

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3 years ago

PLEASE HELP!!! Write the equation of a line that goes through the point (6, 3) and is perpendicular to the line y = 4x + 1.

Tpy6a [65]

For this case we have that by definition, the equation of a line in the point-slope form is given by:

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Where:

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Thus, a perpendicular line will have a slope:

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8 0

3 years ago

Determine the length of the missing side in each of the right triangles below using the Pythagorean Theorem: a2 + b2 = c2.

lara31 [8.8K]

The answer is 12
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3 years ago

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qaws [65]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

the walls of a square room need pain each of the four walls is 12 ft wide by 8.5 feet tall. One gallon of paint covers 75ft^2. h

Bingel [31]

Answer:

You would need 2 1/2 gallons of paint to finish the room.

Step-by-step explanation:

Step 1: 12 x 8.5

Step 2: you should get 102. Then multiply 102 x 4

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Your finally should be 2.72 :)

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3 years ago