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9966 [12]
3 years ago
12

Step by step please (variable expression)

Mathematics
1 answer:
Naddika [18.5K]3 years ago
6 0

Answer:

139

Step-by-step explanation:

Substitute x for 15.

9(15)+4

Then multiply:

135+4

And then add:

139

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3 years ago
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Can someone help with this math question please
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DC-10
At t=0 the altidude is 4500 feet
It's descending at a rate of 150 feet per minute, then each 5 minutes it descends (150 feet/min)(5 min)=750 feet. Then:
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727
At t=0 the altidude is 600 feet
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The graph with these characteristics is Graph B.

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