2 years ago

Solve the system of equations

Mathematics

1 answer:

DanielleElmas [232]2 years ago

4 0

Answer:

4x-3y=8

Simplifies to x=3/4y+2

2x+5y=-9

Simplifies to -5/2y+-9/2

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7. Which pair shows equivalent expressions? A. 3(x+2) = 3x + 6 B. 3x + 2x = x²(x + 2) C. 3x + 2 = 3(x + 2) D. -3(2 + x) = -6x -

Sergio039 [100]

C has equivalent expressions I think

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2 years ago

How much water can be held by a cylinder tank with a radius of 12 feet and a height of 30 feet

kodGreya [7K]

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2 years ago

Find f(-3) if f(x) = x^2.

Serggg [28]

Answer:

Step-by-step explanation:

f(-3)=-3×-3

= (-)(-)9

=+9

- into - covert into positive when you have square on x

hopefully, it works for you

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3 years ago

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How can you use place value to describe how 0.05 and 0.005 compare

zvonat [6]

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3 years ago

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Answer this by 4:20 EST and I will mark brainliest

Alexxandr [17]

Answer:

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (6, a ) and (x₂, y₂ ) = (9, - 4 )

m = $\frac{-4-a}{9-6}$ = $\frac{-4-a}{3}$

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

2x - 3y = 6 ( subtract 2x from both sides )

- 3y = - 2x + 6 ( divide through by - 3 )

y = $\frac{2}{3}$ x - 2 ← in slope- intercept form

with slope m = $\frac{2}{3}$

Parallel lines have equal slopes , then

$\frac{-4-a}{3}$ = $\frac{2}{3}$ , so

- 4 - a = 2 ( add 4 to both sides )

-a = 6 ( multiply both sides by - 1 )

a = - 6 → A

8 0

2 years ago