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nataly862011 [7]
3 years ago
13

Round this number the nearest hundredth 7.349

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

Step-by-step explanation:

It is 7.3

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Answer:

b because the value are correct

Step-by-step explanation:

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An object launched vertically from a point that is 37.5 feet above ground level with an initial velocity of 48.6 feet per second
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Answer: 3.675 seconds

Step-by-step explanation:

Hi, when the object hits the ground, h=0:

h=−16t^2+48.6t+37.5

0=−16t^2+48.6t+37.5

We have to apply the quadratic formula:  

For: ax2+ bx + c  

x =[ -b ± √b²-4ac] /2a  

Replacing with the values given:  

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x =[ -(48.6) ± √(-48.6)²-4(-16)37.5] /2(-16)  

x = [ -48.6 ± √ 4,761.96] /-32

x = [ -48.6 ± 69] /-32

Positive:  

x = [ -48.6 + 69] /-32 = -0.6375

Negative:  

x = [ -48.6 - 69] /-32 = 3.675 seconds (seconds can't be negative)

Feel free to ask for more if needed or if you did not understand something.  

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Answer:

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