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2 years ago

12

Please help will give brainiest!!! The pathway of a quarter being thrown off a bridge can be modeled by the equation h=-16t^2+72

t+120. At what time does the quarter reach a height of 50 feet?

2 answers:

kotykmax [81]2 years ago

6 0

Answer:

3.1 secs

Step-by-step explanat y+ -16x2+48X+5

Levart [38]2 years ago

4 0

3.1 would be the answer

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3 years ago

Allison can row a boat 1 miles upstream (against the current) in 24 minutes. She can row the same distance downstream in 13 minu

prohojiy [21]

Answer: The speed of rowing is 3.56 miles per hour and speed of current is 1.06 miles per hour.

Step-by-step explanation:

Since we have given that

Let the speed of boat in still water be 'x'.

Let the speed of current be 'y'.

Distance = 1 mile

For Upstream, speed would be

$x-y=\dfrac{1}{24}\times 60=2.5$

For downstream, speed would be

$x+y=\dfrac{1}{13}\times 60\\\\x+y=4.615$

By graphing method we get that

x = 3.558 miles/hr

and y = 1.058 miles/hr

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3 0

3 years ago

Need help a through d

kobusy [5.1K]

it seems pretty tricky

7 0

3 years ago

Can someone solve this please

Fudgin [204]

Answer:

53 secs

Step-by-step explanation:

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2 years ago