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telo118 [61]
3 years ago
11

The height h, in feet, of a projectile t seconds after launch is modeled by the equation h = 32t – 16t2. How long after launch d

oes the projectile return to the ground?
2 seconds
4 seconds
14 seconds
16 seconds
Mathematics
2 answers:
qwelly [4]3 years ago
6 0

Answer:

2

Step-by-step explanation:

Anna35 [415]3 years ago
3 0

Answer:

2

Step-by-step explanation:

when it returns to the ground , h = 0

32t -16t2 = 0 and solve for t

t = 0, 2   ....0 is the start, 2 is when it returns

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What is
Sergeeva-Olga [200]

Answer:

Standard form of the equation is:

∴ 3x+y=23

Step-by-step explanation:

Given equation:

y-2=-3(x-7)

To convert the given equation to standard form of equation:

A(x)+B(y)=c

Using distribution.

y-2=(-3x)+(-3\times-7)

y-2=-3x+21

Adding 2 both sides.

y-2+2=-3x+21+2

y=-3x+23

Adding 3x to both sides.

3x+y=3x-3x+23

∴ 3x+y=23

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3 years ago
What is 9+10 pls help it too hard :( I give brainiest give me step by step explain
Svetllana [295]

Answer:

9+10=90

Step-by-step explanation:

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I hope it helps:)

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2 years ago
Read 2 more answers
In the figure below the measure of <1=5x°, the measure of <2=y°, and the measure of <3=85°. Find the value of each vari
elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation:

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y=95

7 0
3 years ago
Please help me...I don't get it-
DaniilM [7]

Answer:

1. It would be the second block. Bill reads 3 books EACH week. I know you’re looking for that X to be 1 but if you look 3 books x 5 weeks = 15 books and so on.

2. It would be the first block. Exactly on 6 weeks he reads 6 books meaning that by week 3 (which is half) he would have read haof the books (2). And same for week 12 you and another 4 which gets you 8 books.

3. It’s the last block. On week 12 he read 4 books. Half of 12 is 6 so it would be half books and week 3 is half of that which is 1 book per 3 weeks.

4. Is the third block. (Process of elimination lol) but also easily you can find the rate of each week by dividing the 15 books by 10 weeks which gets you 1.5 books read per week

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2 years ago
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ikadub [295]

Answer:

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Step-by-step explanation:

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2x + 9 = 15 and 2x + 9 = -15

2x = 6 and 2x = -24

x = 3 and x = -12

Why this works is that |-x| and |x| will both be equal to 0. Remember that absolute value is the distance a number is away from 0.

4 0
2 years ago
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