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SIZIF [17.4K]
3 years ago
11

X 2 +6x+___ complete the square

Mathematics
1 answer:
vaieri [72.5K]3 years ago
6 0
9 is the blank.

(a+b)^2 = a^2 + 2ab + b^2

a = x
b = 3

(x+3)^2 = x^2 + 6x + 9
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3 years ago
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Fofino [41]

Answer:

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6 0
3 years ago
Read 2 more answers
By what percent change if the numerator is decreased by 10% and the denominator is decreased by 70%
hjlf

Answer:

It increases x3.

Step-by-step explanation:

Let's say the fraction to begin with was 100/100. Ignore the fact that it isn't fully reduced and it is an improper fraction.

10% of 100 is 10, so the numerator is now 90 (decrease=get smaller; 100-10=90).

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Our fraction is now 90/30 which, when fully reduced, equals 3.00. Since 100/100 equals 1.00, it has increased by 2.00 (3x bigger).

6 0
3 years ago
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A)1:2
b)21:2
c)6:44 or 3:22
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