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sergiy2304 [10]
4 years ago
10

Need help with number 13 plz :D

Mathematics
1 answer:
skelet666 [1.2K]4 years ago
7 0

A) 10^2

B) 10^6

C)10^9

D)10^15

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Please help i need to finish this!!
s2008m [1.1K]

Answer:

20 inches x 26 inches

Step-by-step explanation:

set up an equation: (2x)(x+7)=520

now just solve it

2x^2+14x=520

x^2+7x-260 = 0

factor: (x-13)(x+20)

x = 13 and -20

13 is the only one that works because you can't have a negative side length

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3 years ago
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Over [174]

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Step-by-step explanation:

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4 years ago
Office supplies had a normal starting balance of $75. there were debit postings of $80 and credit postings of $60 during the mon
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Answer:

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