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harina [27]
3 years ago
14

7-4x+2(5x+8). If x=-2

Mathematics
2 answers:
Rashid [163]3 years ago
6 0
<span>7-4x+2(5x+8)
plug x=-2 7
-4(-2)+2(5(-2)+8)
7+8+2(-10+8)
7+8+2(-2)
 7+8-4 11</span>
IRISSAK [1]3 years ago
6 0
39 is the answer. :) Your welcome.
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Round 637.892 to the nearest whole number
ladessa [460]

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The next smaller whole number is  637 .

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The nearest whole number is  638 .

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Find the value of c that makes each trinomial a perfect square.<br> x^2-13x+c
vova2212 [387]

Answer:

169/4

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What is the distance between 3,0 and 6,-13
madam [21]

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8 0
3 years ago
The width of a rectangle is 8 units less than the length. The area of the rectangle is 9 units. What is the length, in units, of
Kipish [7]
W=l-8
a=9
a=lw
9=(l-8)l
9=l²-8l
0=l²-8l-9
factor
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3 years ago
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Elena-2011 [213]

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7 0
3 years ago
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