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bija089 [108]
3 years ago
8

Betsy bought 6 bags of rice weighing 30 lbs total.

Mathematics
1 answer:
Vanyuwa [196]3 years ago
7 0
The correct answer is 1:5 because if you take the ratio of 6:30 and reduce it by dividing both 6 and 30 by 3 then you get 1:5
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Answer:

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  d) [0, 4] seconds

Step-by-step explanation:

a) Evaluate the function for t=3:

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  h(3) = 49

The height of the ball is 49 feet after 3 seconds.

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b) The maximum height of the ball will be found where t=-b/(2a) = -63/-32 = 1.96875.

  h(1.96875) = (-16·(63/32) +63)·(63/32) +4 = 63²/64 +4 = 66.015625

The maximum height of the ball is approximately 66 feet.

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c) The ball will hit the ground when its height is zero.

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Using the quadratic formula, we find the solution to be ...

   t = (-63 - √(63² -4(-16)(4)))/(2·(-16)) = (-63 -√4225)/-32 = -128/-32 = 4

The ball will hit the ground after 4 seconds.

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d) The function is only useful for the time period between when the ball is thrown and when it lands, t = 0 to t = 4 seconds.

The domain of t in the interval 0 to 4 seconds makes sense for this function.

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Answer:

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54 is the hypotenuse because it is the longest side. Square all of the sides. So 54^2=2916
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In short, its B
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