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Likurg_2 [28]
3 years ago
8

Which expression is a factor of x2 +2x - 15 A. (x - 3) B. (x + 3) C. (x + 15) D. (x - 5)

Mathematics
1 answer:
valina [46]3 years ago
3 0

Answer:

A. (x - 3)

Step-by-step explanation:

x^2 +2x - 15

Factor

What 2 numbers multiply to -15 and add to 2

5*-3 = -15

5 -3 =2

(x+5)(x-3)

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The length of a rectangle is 6m more then the width. The area is 40m^2 . What is the length and the width?
erastova [34]

let the width of the rectangle be x

area of rectangle is l*b

x * (x + 6) = 40^2

x^2 + 6x = 40^2

x^2 + 6x = 1600

x + 6x =√1600

x + 6x = 40

7x = 40

x = 5.7

Hope you found this useful

4 0
4 years ago
Pam wants to buy a DVD player. The original price is $50. What is the sale price? with a 90% off
qaws [65]

Answer:

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Step-by-step explanation:

If the price is 90 % off, we will pay 100 - 90 or 10 %

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5 0
3 years ago
A parallelogram has an area of 111.86 ft2 and a height of 11.9 ft. how long is the base of the parallelogram? enter your answer
777dan777 [17]
111.86/11.9 = 11186/1190 = 5593/595 = 9.4
7 0
3 years ago
Read 2 more answers
Can you please help with the answer
sertanlavr [38]

11w times 6x

240w times 18y

you always use the last numbers and that would equal...

____________________________________________________________

66x times 4320y=

285120 divide it by 6= 47520

then by 12

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8 0
3 years ago
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Sholpan [36]

Answer:

  1. you can scrap your knee if you don't have knee pads
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Step-by-step explanation:

8 0
3 years ago
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