A tennis ball was hit into the air. The height of the tennis ball in feet (h) with respect to how far the ball traveled horizontally in feet (d) can be modeled by the quadratic function,

h = -d2 + 8d+4.

Enter the maximum height, in feet, of the tennis ball.

feet

Answers

Answer 1

Answer:

20m

Step-by-step explanation:

Given the height reached by the ball modelled by the equation

h = -d² + 8d+4.

The velocity of the balk at its maximum height is 0. Hence

v = dh/dd = 0

v = -2d + 8

0 = -2d+8

2d =8

d =8/2

d = 4

Substitute d = 4 into the equation to get the maximum height reached

h = -(4)² + 8(4)+4

h =-16+32+4

h = -16+36

h = 20

Hence the maximum height reached by the ball is 20m


Related Questions

The following graph represents the cost and revenue functions for custom-made computers. How many computers
have been sold at the break-even point?

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C 5
d. 0

Answers

A it’s the answer correct

Answer:

A. 12

Step-by-step explanation:

Samir's retirement party will cost $294 if he invites 6 guests. If there are 12 guests, how much will Samir's retirement party cost? Solve using unit rates.

Answers

Answer:

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Step-by-step explanation:

$294 = 6 Guests

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Answer:

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Polynomial
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Answers

Answer:

[tex]-3x^3-2x+27 \ is\ the\ standard\ form.[/tex]

Step-by-step explanation:

The standard form of a polynomial is its representation in a descending order starting from the term with the highest degree to the one with the lowest.

Here,[tex]-3x^3-2x+27 \ is\ the\ standard\ form.[/tex]

The following graph shows the proportional relationship between the cost and duration of a car rental.Which statements about the graph are true?
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Choose all answers that apply:

(Choice A)
A
The yyy-coordinate of point AAA represents the total cost of a 555-day car rental.

(Choice B)
B
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(Choice C)
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Answers

Answer:

The y-coordinate of point A represents the total cost of a 5-day car rental.

Step-by-step explanation:

1.A chef has 5 1/2 pounds of chicken. He uses 4/5 of the chicken to make enchiladas. How many pounds of chicken did the chef use to make enchiladas?

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Answers

1. 4.4 pounds
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Twelve times a number increased by 6​

Answers

Answer: 12x-6


Hope this is what your looking for

Answer:

12 x n + 6

Step-by-step explanation:

n = unknown number

what is the correct here??​

Answers

Answer:

There is no mistake.

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Answers

Answer:

Step-by-step explanation:

As Angle 5 and Angle 4 form a linear pair, they are supplementary.

Hence,

[tex]Hence,\\Angle\ 5\ +\ Angle\ 4\ =\ 180\\(3x+7)+(9x-43)=180\\12x+(-36)=180\\12x=180+36\\12x=216\\x=18\\\\Hence, Obtuse\ Angle\ UPS = Angle\ 4 + 90\\Hence,\\Obtuse\ Angle\ UPS\ = (3x+7)+90\\\\We\ know\ that\ x=18 \\Hence, Angle\ 4\ = (3*18+7)\\=(54+7)\\=61\\\\Obtuse\ Angle\ UPS\ = 61+90\\=151\\\\\\Reflex\ Angle\ UPS\ = 360-151\\=209[/tex]

The ratio of students to adults in a community band is 47to53 what percent of the marching band is students

Answers

[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]

The ratio of students to adults in a community band = 47:53

47+53 = 100

ratio of students = 47

[tex]47 \times \frac{100}{100} = 47\%[/tex]

Hence, 47 % of the marching band is students.

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Answers

Answer:

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Step-by-step explanation:

use google calculator or calculator soup

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Answers

Answer:

y=mx+b

Step-by-step explanation:

HELP ASAP!!!!
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Answer:

Step-by-step explanation:help me

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Choice A: 22 ounces of potato chips for $3.49
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Answers

Answer:choice b

Step-by-step explanation:

I just took the trst

A dog groomer wants to gather information about how often dog owners have their dogs groomed. She decides to take
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Answers

Answer:

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What is the answers to

Answers

Answer:   -4/3= -1.3 repeating

Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

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Answers

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Answers

Answer:

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Step-by-step explanation:

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Answers

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Answers

Answer:

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Step-by-step explanation:

Hope this helped, Have a Great Day!!

Answer:

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Step-by-step explanation:

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Answers

Answer:

D

Step-by-step explanation:

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I thinkkkkkkkkk .......

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Answer:

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Answers

Answer:

Order of operations are the rules that state the sequence in which the multiple operations in an expression should be solved.

PEMDAS Stands for

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Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

Joshua tells his friends that for there to be snow it has to be 32o F. He uses his thermometer outside and sees snow. He finds it is only is 34oF. What is his percent error? (Round to the nearest tenth)

Answers

Answer: Percentage error = -5.9%

Step-by-step explanation:

Step 1

Percentage error =Approximate Value − theoretical  Value / Theoretical value    ×  100%

or

Percentage error = Assumed number - Result number / Result number x 100

Given  Assumed number / Approximate Value=  32o F

Result number/ Theoretical value= 34o F.

Step 2---

Percentage error = (32 - 34)/ 34  x 100

= - 2/34 x 100

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Answers

Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation: The answer is 50% hope you pass the assignment

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Answers

Answer:

1.75

Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

yes i used a calculator

Answer:

9 miles.

Step-by-step explanation:

What I did was 4.5/.5  

The  I got 9. Then I checked it on a calculator and got 9 again.

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