3 years ago

-6x + y = -2 8x + 3y = -6 solve each system by substitution.

Mathematics

1 answer:

Nina [5.8K]3 years ago

6 0

Answer:

x=0,y = -2

Step-by-step explanation:

hope i helped

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Step-by-step explanation:

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3 years ago

A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 3 miles to the roa

patriot [66]

53+3(D) = L

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3 years ago

a rectangular lawn has an area of a^3 - 125. use the difference of cubes to find out the dimensions of the rectangle.

ANEK [815]

The area of a rectangle is the product of its dimensions

The dimensions of the rectangle are: $\mathbf{Length = a -5}$ and $\mathbf{Width = a^2 + 5a + 25}$

The area is given as:

$\mathbf{Area = a^3 - 125}$

Express 125 as 5^3

$\mathbf{Area = a^3 - 5^3}$

Apply difference of cubes

$\mathbf{Area = (a - 5)(a^2 + 5a + 5^2)}$

$\mathbf{Area = (a - 5)(a^2 + 5a + 25)}$

The area of a rectangle is:

$\mathbf{Area = Length \times Width}$

So, by comparison:

$\mathbf{Length = a -5}$

$\mathbf{Width = a^2 + 5a + 25}$

Read more about areas at:

brainly.com/question/3518080

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2 years ago

What is 12-(-3)-2(4)

Ad libitum [116K]

Answer:

Step-by-step explanation:

12-(-3)-2(4)

12-(-3)-8

15-8=7

4 0

3 years ago

Read 2 more answers

Find the surface area plz

GREYUIT [131]

Answer:

Step-by-step explanation:

4 triangles

Each of the 3 from the vertical ones has area

A = bh/2 = 10.12/2 = 60ft^2

The latter surface pointing down

A = bh/2 = 10.8.7/2 = 43.5 ft^2

SO summation of all

60+43.5 = 103.5 ft^2

8 0

3 years ago