3 years ago

Simplify : 7x^2 + 6x + 9x^2 - 5x

Mathematics

1 answer:

anastassius [24]3 years ago

7 0

Answer:

131x

Step-by-step explanation:

7x² + 6x + 9x² - 5x

49x + 6x + 81x - 5x

136x - 5x

131x

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State the zeros of the following. (x- 2) (x - 3) =0

gregori [183]

Answer:

x=2,3

Step-by-step explanation:

(x- 2) (x - 3) =0

Using the zero product property

x-2 =0 x-3 =0

x-2+2=0+2 x-3+3 =0+3

x=2 x+3

7 0

3 years ago

What is the solution to this system of linear equations? y − 4x = 7 2y + 4x = 2

erik [133]

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▹ Answer

(-1, 3)

▹ Step-by-Step Explanation

y - 4x = 7

2y + 4x = 2

Substitute

y - (2 - 2y) = 7

Solve

y = 3

Substitute

4x = 2 - 2 * 3

Solve

x = -1

Final Answer

(x, y) = (-1, 3)

Hope this helps!

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4 0

4 years ago

The height of the pyramid in the diagram is three times the radius of the cone. The base area of the pyramid is the same as the

Brut [27]

Answer:

jhhfhgk

Step-by-step explanation:

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3 years ago

Need help with math problem please!!

Ivahew [28]

Answer:

m + 2

2 dollars + one dollar per minute

5 0

3 years ago

Solve for x -2^2(-5x+10)=100

masha68 [24]

Answer:

$x=7$

Step-by-step explanation:

Hi there!

$-2^2(-5x+10)=100$

Solve -2^2:

$-4(-5x+10)=100$

Divide both sides by -4:

$\displaystyle \frac{ -4(-5x+10)}{-4}=\frac{100}{-4} \\\\-5x+10=-25$

Subtract 10 from both sides:

$-5x+10-10=-25-10\\-5x=-35$

Divide both sides by -5:

$\displaystyle \frac{-5x}{-5} = \frac{-35}{-5} \\\\x=7$

Therefore, x = 7.

I hope this helps!

3 0

3 years ago