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MakcuM [25]
3 years ago
5

Expand. Your answer should be a polynomial in standard form. 3h(-h^2+2h-1)=

Mathematics
2 answers:
True [87]3 years ago
6 0

Answer:

-3h^3+6h^2-3h

Step-by-step explanation:

You will just multiply 3h with everything inside, Warning for + and -

Brums [2.3K]3 years ago
5 0

Answer:

Step-by-step explanation:

3h(-h² + 2h  - 1) = 3h*(-h²) + 2h*3h - 1 * 3h

                        = -3h³ + 6h² - 3h

Distribute '3h' to every term of the expression( -h² + 2h - 1)

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The measure of one angle is 13 less than five times The measure of another angle. The sum of the measure of the two angles is 14
kodGreya [7K]

\huge\boxed{a=\frac{229}{2};\ \ b=\frac{51}{2}}

<em>In decimal form, a = 114.5; b = 25.5</em>

We will write this as a system of equations, where a and b are the two angles.

\left \{ {{a=5b-13} \atop {a+b=140}} \right

We will use substitution to solve this system. We know what a equals, so we plug that into the second equation.

5b-13+b=140

Combine the like terms.

6b-13=140

Add 13 on both sides.

6b=153

Divide both sides by 6.

b=\frac{153}{6}=\boxed{\frac{51}{2}}

Now just subtract that from 140.

a=140-\frac{51}{2}=\boxed{\frac{229}{2}}

7 0
3 years ago
Please help nowww!!!
Vaselesa [24]

Answer:

C

Step-by-step explanation:

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12*8=96

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5 0
4 years ago
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3Step-by-step explanation:

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