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Andrei [34K]
3 years ago
7

The width of a rectangle is 7 inches shorter than its length. The area is 78 square inches. What are the dimensions of the recta

ngle?
Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

Step-by-step explanation:W = L - 7

WL = 78

(L-7)L = 78

L^2 - 7L - 78 = 0

Factorize: (L-13)(L+6) = 0

L = 13 or -6

A length cannot be negative, so the length must be 13 miles.

The width is 13-7 = 6 miles.

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Norma-Jean [14]

Answer:

180 degrees

Step-by-step explanation:

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5 0
1 year ago
Two factory plants are making TV panels. Yesterday, Plant A produced 6000 panels. Seven percent of the panels from Plant A and 2
azamat

Answer:

1% of 4000 + 4% of B = 2% of (4000 + B)

40 + 0.04*B = 0.02( 4000 + B)

40 + 0.04* B = 80 + 0.02*B

40 + 0.04*B - 80 - 0.02B = 0

0.02*B - 40 = 0

0.02*B = 40

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B = 2000

Step-by-step explanation:

7 0
3 years ago
Anyone who can do this please give me the right graph I would appreciate it
igor_vitrenko [27]
Graph c
I think is the answer don’t blame me if I got it wrong
I hope this helps
3 0
3 years ago
Read 2 more answers
Can you help with this please
mojhsa [17]

Answer:

x = 81

Steps:

It says that y ~ √x

We have points (9, 18) as a guide.

We can write y = f(x) = a√x +b

Use points (9, 18) as a guide

18 = a√9 +b

18 = 3a + b

One solution might be a = 6, which means f(x) = 6√x

Thus when y = 54,

54 = 6√x

9 = √x

81 = x

6 0
2 years ago
What is the answer to 2(1+3x)+7x-1
kogti [31]
Pretty sure its 13x+1
if you're looking for x, minus the one so it's 13x=-1 and divide. hope it was helpful
8 0
3 years ago
Read 2 more answers
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