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s344n2d4d5 [400]
2 years ago
15

A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a func

tion of time t (in seconds) by the equation h = -16t2 + 56t. How much time does the ball take to reach its highest point?
1.75 seconds B) 2.50 seconds C) 2.75 seconds D) 3.50 seconds
Mathematics
1 answer:
siniylev [52]2 years ago
8 0

Answer:

1.75

Step-by-step explanation:

h(t) = -16t² + 56t

h'(t) = -32t + 56

To find time at max height equate h' to 0

0 = -32t + 56

t = 56/32 = 1.75 s

It takes 1.75 s to reach max highest point

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Jess will plant up to 27 acres on her farm with wheat and corn. More than 5 acres will be planted with wheat.
Lena [83]
The first thing we do in these cases is to define the variables.
 We have then:
 w = represent the number of acres of wheat
 c = represent the number of acres of corn
 We write now the inequalities based is:
 "Jess will plant up to 27 acres on her farm with wheat and corn"
 w + c <= 27
 "More than 5 acres will be planted with wheat"
 w> 5
 Answer:
 
two inequalities that represent this situation are:
 
w + c <= 27
 
w> 5
8 0
3 years ago
Read 2 more answers
Which of the following numbers is NOT a solution of the equation |x + 5| = x + 5?
Nata [24]

Answer:

-10 is not a solution to the equation

Step-by-step explanation:

I don't really have an explanation

7 0
3 years ago
Do any of them you know
snow_tiger [21]

Answer:

I believe I am correct.

1: slope

2: linear equation

3: y-intercept

4: slope-intercept form

5: y-intercept is (0,6) the slope is -2

6: y-intercept is (0,3.4) the slope is 10/6

7: y-intercept is (0,4) the slope is -4/16

Hope this works for you Jack Jiang.

5 0
3 years ago
Which related equations are in the same fact family as the following equation?
mafiozo [28]

Answer:

A, B and D

Step-by-step explanation:

Because all of these are true

7 0
3 years ago
A rental car agency rents cars for $32 per day. They also charge $0.15 per mile driven. If you are taking a 5-day trip and have
xz_007 [3.2K]
So the equation is 32x+0.15y = $250
You know that you’re going to a 5-day trip so you can change x to 5
32(5)+0.15y = $250
You multiply 32 by 5 = 160
$160+0.15y = $250
And to simplify the equation(to make it easier) you subtract 160 on both sides
0.15y = $90
Now you’re trying to find y, so divide 90 by 0.15 to find the maximum of miles you can drive.
y = 600 mi
The maximum amount of miles you can drive is 600

Graph:
I can’t show any pictures sorry
But this is how you do it
Make a number line
Graph 600 with a closed circle, like this: ●
Then make an line going to the left(because you can’t go any more than 600)

Hope this helps! :^)

6 0
3 years ago
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