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bulgar [2K]
3 years ago
10

Fill in the blanks. (x+_)^2=x^2+14x+_

Mathematics
1 answer:
Serga [27]3 years ago
7 0

Step-by-step explanation:

(ax + b)² = a²x² + 2abx + b²

In this case, a = 1, so:

14 = 2b

b = 7

(x + 7)² = x² + 14x + 49

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The perimeter of a rectangle is 20 inches.The length is 2 inches less than twice the width.
SSSSS [86.1K]

Answer:

width = 6

length = 4

Step-by-step explanation:

perimeter = 2L + 2W

L = W - 2

plug in perimeter:

20 = 2L + 2W

you know the length is 2 less than the width

plug in (w - 2) for L:

20 = 2(w - 2) + 2w

solve for w:

20 = 2w - 4 + 2w

20 = 4w - 4

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w = 6

now plug in 6 for w in either equation, whichever is easier to solve:

L = 6 - 2

L = 4

width = 6

length = 4

6 0
3 years ago
Which one is greater 5 or 1.5
Andrew [12]

Answer:

5

Step-by-step explanation:

5 is greater than 1.5 by 3.5

5 - 1.5 = 3.5

~

8 0
2 years ago
Read 2 more answers
A gerbil cage,priced at $18, is discounted 20% for one week, and then this price is marked up 20%. is the price back to 20% expl
stiks02 [169]
No, it isn't!

first, the discount is 20 percent of 18 dollars, that is 18/5=3.6

this means that during the first week the prize is 18-3.6=14.4

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6 0
2 years ago
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GenaCL600 [577]

Answer:

8 servings

Step-by-step explanation:

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42/5 =8.4

Round down since we don't want to short someone on their soup

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max2010maxim [7]

Answer:

Step-by-step explanation:

(x+2)(3x-3)

= 3x^2 -3x + 6x - 6

= 3x^2 + 3x - 6

6 0
2 years ago
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