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NeX [460]
3 years ago
12

Write an expression for the length of the segment

Mathematics
1 answer:
Dvinal [7]3 years ago
8 0

Answer:

x=8

Step-by-step explanation:

a

x+2=7x-3

x+7x=3-2

8×= 1

×=8

b

13y+25=8y+5

13y+8y= 25+5

21y=30

y= 30-21

y=11

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Answer:

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Step-by-step explanation:

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3 years ago
the slope of a line is 3/2 and the line contains the points (5,9) and (3, a). what is the value of a?
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3 years ago
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3 years ago
Which shows the expression below simplified? 0.00028 ÷ (7 × 10-4)
Katyanochek1 [597]
0.\underbrace{00028}_{\rightarrow5places}=28\times10^{-5}\\\\0.00028:(7\times10^{-4})=\dfrac{28\times10^{-5}}{7\times10^{-4}}=\dfrac{28}{7}\times\dfrac{10^{-5}}{10^{-4}}\\\\=4\times10^{-5-(-4)}=4\times10^{-5+4}=\huge\boxed{4\times10^{-1}}\leftarrow\boxed{b.}\\\\used\ \dfrac{a^n}{a^m}=a^{n-m}
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The correct answer is 7/9
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