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diamong [38]
3 years ago
6

PLEASE HELP!!!!

Mathematics
2 answers:
Alex777 [14]3 years ago
8 0

Answer:

144 ft

Step-by-step explanation:

h = -16t ^2 + 64t + 80,

We want to find the maximum height or the vertex

This occurs when at

t = -b/2a

t = -64/ (2(-16)

  = -64/-32 = 2

When t=2

h(2) = -16 (2)^2 +64(2) +80

     = -16*4+128 +80

     =-64 +128 +80

     =144

h(2) = 144

The maximum height is 144

Nastasia [14]3 years ago
3 0

Answer:

144

Step-by-step explanation:

h=-16t^2+64t+80

So you have to figure out which number t results in the maximum h.

First find the range.

64t+80>16t^2

4t+5>t^2

t^2-4t-5

(t-5)(t+1)

t-1

It looks like t has to be less than 5 and greater than -1 to be positive.

Now just try the numbers 0, 1, 2, 3, 4

0: 80

1: 128

2: 144

3: 128

4:  80

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Alexeev081 [22]
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7 0
2 years ago
PLEASE HELP, THE DEADLINE TO TURN THIS IS IN IS SOON!! explain your answer, thank you, thank you!
Karo-lina-s [1.5K]

Answer:


Step-by-step explanation:

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3 0
3 years ago
On your wedding day you leave for the church 34 minutes before the ceremony is to begin, which should be plenty of time since th
Schach [20]

Answer:

Average speed   is 37.35 mi/h

Step-by-step explanation:

given data

leave =  34 minutes before

church distance =  12.0 miles

average speed first 17 minutes =  5.0 mi/h

solution

so we find Total distance travel in first 17 minutes = speed × time

Total distance travel in first 17 minutes = 5 × \frac{17}{60}

Total distance travel in first 17 minutes = 1.416 mi

and

Distance Remaining = 12 - 1.416 = 10.584 mi

Time Remaining = 34 - 17 min = 17 min

so

remaining distance Average speed  = \frac{distance}{time}

Average speed  = \frac{10.584}{\frac{17}{60}}

Average speed   is 37.35 mi/h

3 0
2 years ago
the sum of the measurement of two angles is 183.61 angle one has a measure of 54 what is the measure in degrees of the second an
Dennis_Churaev [7]
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7 0
2 years ago
An equation is shown below. 12 – 6(w – 3) = 3(– 5 – 3w) + 21 Enter the solution of w for this equation.
gogolik [260]
<span>Simplifying
12 + -6(w + -3) = 3(-5 + -3w) + 21

Reorder the terms:
12 + -6(-3 + w) = 3(-5 + -3w) + 21
12 + (-3 * -6 + w * -6) = 3(-5 + -3w) + 21
12 + (18 + -6w) = 3(-5 + -3w) + 21

Combine like terms: 12 + 18 = 30
30 + -6w = 3(-5 + -3w) + 21
30 + -6w = (-5 * 3 + -3w * 3) + 21
30 + -6w = (-15 + -9w) + 21

Reorder the terms:
30 + -6w = -15 + 21 + -9w

Combine like terms: -15 + 21 = 6
30 + -6w = 6 + -9w

Solving
30 + -6w = 6 + -9w

Solving for variable 'w'.

Move all terms containing w to the left, all other terms to the right.

Add '9w' to each side of the equation.
30 + -6w + 9w = 6 + -9w + 9w

Combine like terms: -6w + 9w = 3w
30 + 3w = 6 + -9w + 9w

Combine like terms: -9w + 9w = 0
30 + 3w = 6 + 0
30 + 3w = 6

Add '-30' to each side of the equation.
30 + -30 + 3w = 6 + -30

Combine like terms: 30 + -30 = 0
0 + 3w = 6 + -30
3w = 6 + -30

Combine like terms: 6 + -30 = -24
3w = -24

Divide each side by '3'.
w = -8

Simplifying
w = -8</span>
5 0
3 years ago
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