3 years ago

Multiply: x (x^2+2x+4) and -2 (x^2+2x+4) Combine like terms. Final Answer:

Mathematics

1 answer:

natulia [17]3 years ago

5 0

Answer:

x^3-8

Step-by-step explanation:

x^3+2x^2+4x + -2x^2-4x-8

+2x^2 and -2x^2 cancel out

+4x and -4x cancel out

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5 hundreds + 4 tens= ____ tens

Mumz [18]

Oh ok!

How many tens are in 100? =10

so, 10 * 5 = 50

Now, 50 + 4 = 54!

Hope so now i get it correct!

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4 years ago

Find the slope of the line that passes through (4, 1) and (9, 8).

larisa86 [58]

Answer:

the slope is 7/5

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3 years ago

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Oksi-84 [34.3K]

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3 years ago

If (a, –5) is a solution to the equation 3a = –2b – 7, what is a?

sukhopar [10]

Answer:

d) 1

Step-by-step explanation:

3a = –2b – 7

We have the point (a, -5) so b = -5

Substituting in

3a = -2(-5) -7

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Divide each side by 3

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3 years ago

For every 30 minutes of tv airtime,there are 8 minute commercials.If 90 minutes of tv airtime are aired,how many minutes of comm

Alex777 [14]

Answer:

For 90 minutes of TV there will be 24 mins of commercials

Step-by-step explanation:

You start with 30 and keep adding 30 mins each time until you get to 90. (So..30..60..90) each time you add 30mins you add 8 more minutes to the commercials)

30 mins tv----8mins commercials

60 mins tv----16mins commercials

90 mins tv----24mins commercials

Hope this helps, good luck!

8 0

4 years ago