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Korvikt [17]
3 years ago
10

14) The height, h metres, of a ball projected directly upwards from the ground can be modelled by h = 56t - 71, where t is the t

ime in seconds after it leaves the ground. a) Find the height of the ball 3.5 seconds after it leaves the ground. b) At what time will the ball strike the ground again? c) When will the ball be 49 m above the ground? Briefly explain why there are two possible answers.​
Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0
Okay the height would be nice if it would have to come
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A moving company needs to replace a circualr glass mirror that it broke during a move. The dimensions of a piece of the broken m
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Is there a picture that goes with this?

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Yolanda makes $11.25 per hour at her part-time job. During one week, she worked 12 2/5 hours and also earned some tips. Her fina
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Answer:

She earned $20 in tips.

Step-by-step explanation:

First, you need to work out how much pay she'd get for 12 hours work:

12 x $11.25 = $135 for 12 hours work

Then, find out 2/5 of $11.25 to find out how much she would get for the 2/5 of an hour she worked:

2/5 of $11.25 = $4.50

Add both these sums together to get her total pay for hours worked:

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Subtract that sum from her total pay to find out how much money she earned in tips:

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7 0
3 years ago
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¿Por qué un conjunto numerable es una función biyectiva?????
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8 0
3 years ago
Using f(x) = 8x + 5 and g(x) = 7x - 2, find:g(f(6))
iren2701 [21]

Answer:

369

Step-by-step explanation:

g(f(x)) simply means to put the whole expression of function f(x) into the place of "x" in g(x).

and to find the functional value for a specific x we just need to calculate functional value for f(x) and use that result as input for g(x).

f(6) = 8×6 + 5 = 48 + 5 = 53

and now

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to check we do the general functional substitution :

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3 years ago
Which pairs of integers would have a negative product? ​
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Answer:

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2 years ago
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