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Alex Ar [27]
3 years ago
6

Please Help me 7th grade math

Mathematics
2 answers:
solong [7]3 years ago
7 0
Shape one is 6 inches, shape two is 12 inches, and shape three is 9 inches. hope this help!
ryzh [129]3 years ago
6 0
Shape 1: 6 inch.
Shape 2: 12 inch.
Shape 3: 9 inch.
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4. I need help with question in the attached picture!
Arisa [49]

ANSWER

D. 13

EXPLANATION

We have

f(x) =  \frac{2x + 1}{x - 4}

To find

{f}^{ - 1} (3)

means we want to find an x-value whose image is 3.

\frac{2x + 1}{x - 4}  = 3

We cross multiply,

2x + 1 = 3(x - 4)

Expand:

2x + 1 = 3x - 12

Combine like terms,

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\therefore{f}^{ - 1} (3)= 13

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3 years ago
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Answer:

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3y+5=5y-1

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plug y in back to 5y-1 --> 5x3-1

15-1

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Step-by-step explanation:

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