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Setler [38]
3 years ago
10

Multiply 4x^2 (3x^3 + 8x^2 - 9x)

Mathematics
1 answer:
klio [65]3 years ago
6 0

4x^2 (3x^3 + 8x^2 - 9x)

= 4x^2 . 3x^3 + 4x^2 . 8x^2 - 4x^2 . 9x

= 12x^5 + 32x^4 - 36x^3

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valentinak56 [21]

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What is not a property of all parallelograms?

Yes, opposite sides look congruent, and that's a property. But adjacent sides don't look congruent, and that's not a property. Do the sides appear to be parallel? Yes, opposite sides look parallel (and of course, you know this property if you know the definition of a parallelogram)

Step-by-step explanation:

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3 years ago
Percent of decrease from 150 to 60​
umka21 [38]

Answer:

60% decrease

Step-by-step explanation:

150/100(%)=1.5

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100(%)-40(%)=60(%)

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 Solve the system of equations by the substitution method. Then use the solution to evaluate the expression 2x(−3+y).
Slav-nsk [51]

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\text{Put the values of x and y to the expression}\ 2x(-3+y):\\\\2(4)(-3+2)=8(-1)=-8\\\\Answer:\ \boxed{\text{The valuie of the expression is -8}}

3 0
3 years ago
Honestly, I'm trying my best to solve this but my Math XL is being so rude. ​
Valentin [98]
<h3>Answer:  19</h3>

==============================================================

Explanation:

T is the midpoint of PQ, which means T splits PQ into two equal parts. Those parts being PT and TQ.

Set them equal to each other and solve for x.

PT = TQ

3x+7 = 7x-9

3x-7x = -9-7

-4x = -16

x = -16/(-4)

x = 4

So,

PT = 3x+7 = 3*4+7 = 19

TQ = 7x-9 = 7*4-9 = 19

Both PT and TQ are 19 units long to help confirm the answer.

5 0
3 years ago
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At a music festival, T-shirts are sold for $15 and sweatshirts are sold for $20. The festival organizers pay x dollars for each
Dmitrij [34]

Answer:

38.0

Step-by-step explanation:

  1. you have to you's the part and whole number ≤
4 0
3 years ago
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