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lesya692 [45]
3 years ago
6

alex worked at the library 4 hours each night for 20 nights. he earned a total of $640. how much did he earn per hour working at

the library?
Mathematics
1 answer:
bazaltina [42]3 years ago
4 0
He earned $8 an hour. I hope this helped!
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Which expression is equivalent to <br> 10<br> 102<br> 50<br> 502
pogonyaev

Answer:

10

Step-by-step explanation:

\sqrt{100}  \\  \sqrt{10 \times 10}  \\  = 10

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Vinil7 [7]

Answer:

Part A: Up 9

Part B: Up 6

Step-by-step explanation:

Part A: The graph appears to be a cosine graph since it starts at a peak on the y-axis. Normally a cosine graph starts at (0,1). This graph begins at (0,10). It has been shifted up y a translation by 9.

Part B: Each trig equation has a basic structure f(x) = a sin (x+b) + k where:

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malfutka [58]

Answer:

C) 41.2 in²

Step-by-step explanation:

2.2x3=6.6

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6.6+12+13.8+8.8=41.2

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