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pantera1 [17]
3 years ago
10

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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3. Haley, Chuck, Dana, and Chris enter a contest to see who could bake the most chocolate chip cookies in an hour. Haley bakes 5
otez555 [7]

Chris baked 95 cookies.

Step-by-step explanation:

Given,

Cookies baked by Haley = 50

Cookies baked by Chuck = 65

Cookies baked by Dana = 90

Average of them = 75

Let,

Cookies baked by Chris = x

Average = \frac{Sum\ of\ quantites}{No.\ of\ people}

75=\frac{50+65+90+x}{4}

Multiplying both sides by 4

4*75=\frac{50+65+90+x}{4}*4\\300=205+x\\300-205=x\\95=x\\x=95

Chris baked 95 cookies.

Keywords: addition, average

Learn more about addition at:

  • brainly.com/question/11286417
  • brainly.com/question/12884373

#LearnwithBrainly

4 0
4 years ago
Please help me with this question. Question C (i) and (ii)
GenaCL600 [577]

Answer:

idk

hahahahahaha

Step-by-step explanation:

8 0
3 years ago
The area is 851 square meters if the length is 23 meters what is the width
jarptica [38.1K]
851÷23= 037 (hope this helps) 69 161 161 0
6 0
3 years ago
Joanie decides to buy matching sweaters for herself and her 3 sisters. The regular price of the sweaters is $37. Joanie says if
Roman55 [17]

Answer:

Yes, it is possible if the sweaters on sale are $7.40 each.

Step-by-step explanation:

The sweaters each cost $37. To purchase all four (for herself and 3 sisters) without a sale would be 4(37)= $148.

40% off the regular price would be 0.40(148)= $59.20 savings. She would spend 148-59.2= $88.80.

Is it possible to buy two regular price sweaters and two on sale for $88.80?

2(37)=$74. If we subtract from the sales total, 88.80-74=14.80. This means the two sweaters on sale must each be $7.40. It is possible to save 40%.


8 0
4 years ago
............??? I need answers
jeka94
On #1, x= 62°
Because you would divide 124° by 2

On #2, x=139°
Because since it is the center point it is the same

Hope this helped :)
5 0
4 years ago
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