Nate tosses a ball up a hill for his dog to chase. The path of the
ball is modeled by the function y=-1/4x^2 + 33/5x, where x is
the ball's horizontal distance from Nate in feet and y is the ball's
height in feet. The hill is modeled by the line y
2. How far
does the ball travel horizontally before it hits the ground? (in
feet, round to tenth place if necessary)

Answers

Answer 1

Answer:

26.4 m

Step-by-step explanation:

The path the ball follows is given by the function

[tex]y=-\dfrac{1}{4}x^2+\dfrac{33}{5}x[/tex]

Before it hits the ground means y will be zero.

[tex]0=-\dfrac{1}{4}x^2+\dfrac{33}{5}x\\\Rightarrow x(-\dfrac{1}{4}x+\dfrac{33}{5})=0\\\Rightarrow x=0, -\dfrac{1}{4}x+\dfrac{33}{5}=0\\\Rightarrow x=0, x=\dfrac{33}{5}\times4\\\Rightarrow x=0, 26.4[/tex]

There are two points where the vertical displacement is zero the point at which Nate tosses the ball and the point where it lands.

So, the ball travels 26.4 m horizontally before it hits the ground.

Answer 2

Solving the quadratic equation, it is found that the ball travels 26.4 feet horizontally before it hits the ground.

The height of the ball, after an horizontal distance of x feet, is given by:

[tex]y(x) = -\frac{1}{4}x^2 + \frac{33}{5}x[/tex]

Converting the fractions to decimal:

[tex]y(x) = -0.25x^2 + 6.6x[/tex]

It hits the ground when:

[tex]y(x) = 0[/tex]

Then:

[tex]-0.25x^2 + 6.6x = 0[/tex]

[tex]0.25x^2 - 6.6x = 0[/tex]

[tex]x(0.25x - 6.6) = 0[/tex]

[tex]x = 0[/tex], or:

[tex]0.25x - 6.6 = 0[/tex]

[tex]0.25x = 6.6[/tex]

[tex]x = \frac{6.6}{0.25}[/tex]

[tex]x = 26.4[/tex]

The ball travels 26.4 feet horizontally before it hits the ground.

A similar problem is given at https://brainly.com/question/10489198


Related Questions

Luis rides his bicycle 3/4 mile in 15 minutes, or 1/4 hour, along the bike trail. Assuming he rides at a constant rate, what is his speed, in miles per hour?​

Answers

Answer: 3

This is because 15 times 4 equals 60 and that is equal to 1 hour, well when your multiplying fractions what you do to the bottom you have to do to the top so multiply 3 times 4 thats 12 and now you have 12/4 and that is equal to 3.

PLS HELP ASAP NO ONE HELPS ME PLSSSSSSSSS.
What is the equation for the line in slope-intercept form?

Enter your answer in the box.

Answers

Answer:

y = -2x - 4

Step-by-step explanation:

-2 is our slope

-4 is our y intercept (the point which the line crosses the y axis)

y=-2/1-4

-4 is the y intercept

the slope is -4/2, but it simplifies to -2/1

A hierarchy of quadrilaterals is shown. Name the figures that complete the hierarchy. Number the figures in your response to indicate where in the diagram they belong.​

Answers

A hierarchy of quadrilaterals is shown. Name the figures that complete the hierarchy. Number the figures in your response to indicate where in the diagram they belong.

Help me I don’t not understand

Answers

Sorry I couldn’t answer S,T, &F. But I hope with the other problems that I solved makes sense, in order for you to solve the other 3.

Please help me and make sure to round the answers to the nearest hundred. I’ll give you brainiest!


Thanks!!!!:)))))

Answers

Answer:

24.4

Step-by-step explanation:

Now please give me  Brainiest.

Kim sold a house for $230,000 and made a 3% commission. How much money did Kim make in commission for selling the house?

Answers

Answer: kim made $6,900 in commission for selling the house

Step-by-step explanation:i took the test

Write and equation in slope-intercept form of the line that passes through the points
(-5,-12) and (1,6)
The equation is y=

Answers

Answer:

Step 1: We need to use slope formula* to determine what m (or the slope) is.

[tex]m = \frac{6 - (-12)}{1 - (-5)}\\\\m = \frac{18}{6} = 3[/tex]

Step 2: Now we use this slope, ONE of the given points, and slope-intercept form** to determine b.

[tex]6 = 3(1) + b\\\\6 = 3 + b\\\\3 = b[/tex]

Step 3: The final answer can now be found by using the slope and y-intercept (or b) that we just found.

[tex]y = 3x + 3[/tex]

For Reference:

*Slope formula

[tex]m = \frac{y_{2} - y_1}{x_2 - x_1}[/tex]

*Slope-intercept Formula

[tex]y = mx + b[/tex]

What is the value of the expression
-1s/20r if r= -1/4 and s= 4/5?
Simplify your answer.​

Answers

Answer:

[tex]\frac{4}{25}[/tex]

Step-by-step explanation:

Given expression:

          [tex]-\frac{1s }{20r}[/tex]  

   r  = [tex]-\frac{1}{4}[/tex] , s = [tex]\frac{4}{5}[/tex]

Now;

     [tex]-\frac{1s }{20r}[/tex]    = [tex]-\frac{s}{20r}[/tex]

              Insert the parameters:

                = [tex]-\frac{\frac{4}{5} }{20 x (-\frac{1}{4} )}[/tex]  

               = - [tex]\frac{\frac{4}{5} }{-5}[/tex]  

              -x - = +

                = [tex]\frac{4}{5}[/tex] x [tex]\frac{1}{5}[/tex]

                = [tex]\frac{4}{25}[/tex]

ASAP HELP BRAINLIEST 100 POINTS PLZ PLZ PLZ HELP



Michelle is having a poster printed from a picture that is 4 inches wide by 6 inches tall. The enlarged poster is 20 inches wide and 30 inches tall. Which proportion can be used to represent the picture sizes?
StartFraction 6 over 4 EndFraction = StartFraction 20 over 30 EndFraction
StartFraction 4 over 6 EndFraction = StartFraction 20 over 30 EndFraction
StartFraction 4 over 6 EndFraction = StartFraction 30 over 20 EndFraction
StartFraction 4 over 30 EndFraction = StartFraction 6 over 20 EndFraction

Answers

Answer:

20 inches wide and 30 inches tall

Step-by-step explanation:

if the height went from 6 to 30 that means it grew by 5 so the poster would be

20 inches wide and 30 inches tall

Answer:

Start Fraction 4/6

End Fraction  20/30

What is the equation of this line?

Answers

Answer:

y= -5/4x + 6

Step-by-step explanation:

y= mx + b

m= -5/4 (rise over run/slope)

b= 6 (y-intercept)

-I hope this helps have a great day!

Answer:

y = -5/4(x)+6

Step-by-step explanation:

to find the equation of this line, we must first find the slope

We can write the equation of this line y = mx + b where m is the slope and b is the y-intercept

m = (y2-y1)/(x2-x1)

m = (-4-6)/(8-0)

m = -10/8

m = -5/4

b is the y intercept which is at 6

So the equation of the line is y = -5/4(x)+6

please someone help me solve this

Answers

Answer:

[tex]\frac{4}{3}[/tex]

Step-by-step explanation:

A(1 , 3)  & B  (4 , 7)

[tex]Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \frac{7-3}{4-1}\\\\= \frac{4}{3}[/tex]

Find the slope of the line

Y=1/4x + 2

Answers

Answer: 14

Step-by-step explanation:

The area of a rectangle is 6 + 3x square feet. Which of the following expressions could represent the lengths
of the sides of the rectangle?
A. 6 and 3x
B. 3 and 2 + x
C. 6 and 6 + x
D. 3 and 2 + 3x

Answers

Answer:

B

Step-by-step explanation:

3(2+x)

distribute

=6+3x

B is the correct answer !!!

PLEASE HELP FAST!!!!Match each description to the expression that can be used to represent it.

Answers

Mayra is the middle child of the family is a, Sakshi is 1 year older than maya is 1+a, and Amul is 2 years younger than Maya is a-2.

Answer:

The first box on the left goes to the middle box on the right! THe second box on the left goes to the first box on the right! And the last box on the left goes to the third box on the right!

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Find the slope of:
(-4,5) and (-4, 2)

Answers

The slope is undefined.

What is a slope?

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction

Given points (-4 ,5) and (-4 ,2).

If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,

then the equation of line is

y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)

To find the slope;

m =  (y₂- y₁) / (x₂ - x₁)

m = (2-5) / (-4+ 4)

here,  (x₂ - x₁)  =0

That means the slope is undefined.

Therefore, the slope is undefined.

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brainly.com/question/3605446

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please help its due today!

Answers

Answer:

B. 12.40

Step-by-step explanation:

Add all the hours

Total profit divided by the amount of hours

75c- 300 - 35 c =25c + 15c + 200

Answers

Answer:

False

Step-by-step explanation:

40c - 300 = 40c + 200

-300 = 200

false

387/4300 as a percent

Answers

Answer:

9%

Step-by-step explanation:

Convert the fraction to a decimal, then multiply by  

100. Hope this helps!

This would equal nine percent.

SOMEONE PLZ HELP JSJSJSNSJNSNSNSNSNNS I HAVE 30 MINS LEFT PLZ

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Answer:

the answer is d. x >=4

name 2 negative integer

Answers

Answer:

A number that is less than zero

Step-by-step explanation:

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Julio is running in a 13.1-mile race. There are water stops every 2.75 miles along the route from the beginning of the race.
What is the distance between the last water stop and the end of the race? Enter your answer in the box.

Answers

Answer:

The distance between the last water shop and the end of the race is 2.1 miles

Step-by-step explanation:

Keep on adding 2.75 until you get the number 11 or you can just multiply 2.75 by 4 and get 11. Subtract 11 from 13.1 and you will get 2.1 miles.

I hope this helps

please help. i will give brainliest to the right answer

Answers

Answer:

use math-way it will really helps

Answer:

I believe its 15 because when substituting the number 15 means that when working the question out, both sides equal to the same number if x is equal to 1 for example

The equation - 2 (x + 1) = (y – 5)^2 is represented by which graph?

Answers

Answer:

B

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

edge

(WILL GIVE BRAINLIEST) Solve for x.
-2(-9x+5)-4x=2(x-5)-4

Simplify your answer as much as possible

Answers

Answer:

−2(−9x+5)−4x=2(x−5)−4

Step 1: Simplify both sides of the equation.

−2(−9x+5)−4x=2(x−5)−4

(−2)(−9x)+(−2)(5)+−4x=(2)(x)+(2)(−5)+−4(Distribute)

18x+−10+−4x=2x+−10+−4

(18x+−4x)+(−10)=(2x)+(−10+−4)(Combine Like Terms)

14x+−10=2x+−14

14x−10=2x−14

Step 2: Subtract 2x from both sides.

14x−10−2x=2x−14−2x

12x−10=−14

Step 3: Add 10 to both sides.

12x−10+10=−14+10

12x=−4

Step 4: Divide both sides by 12.

12x

12

=

−4

12

x= -1/3

Step-by-step explanation:

Good luck! Hope this helps! <3

Answer :

[tex]x = - \frac{1}{3} [/tex]

or you can just write x = -0.3

hope this helps!

Find the slope of the line passing through the points (-8,-8) and (6,-8)

Answers

Answer:

Slope = 0

So, the line is parallel to x-axis

Step-by-step explanation:

(x₁ , y₁) = (-8, -8)      & (x₂ ,y₂) = (6 , -8)

[tex]Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\=\frac{-8-[-8]}{6-[-8]}\\\\=\frac{-8+8}{6+8}\\\\= 0[/tex]

Holly and Ethan decide to sell some of their books at a flea market. The booth rental costs $15, and they will sell each book for $1.50. How many books will Holly and Ethan need to sell to make a profit of exactly $30?

Answers

Answer:The answer would be 20 books divide 15 \ 1.50 equals 10 then multiply 10 by 2

Step-by-step explanation:

The number of books sold by Holly and Ethan to get a profit of $30 will be 20.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Holly and Ethan decide to sell some of their books at a flea market. The booth rental costs $15, and they will sell each book for $1.50.

The number of books will be calculated as,

1.5x = 30

x = 30 / 1.5

x = 20

Therefore, the number of books sold by Holly and Ethan to get a profit of $30 will be 20.

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If the average grade of an English class rose from 70 to 80 what is the approximate percent increase

Answers

Answer:

10

Step-by-step explanation:

I’ll give brainliest!! Just zoom in to see better!!:)

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Answer:

Well done

Step-by-step explanation:

Zoomed in

Please help meee I really need help I’ve been struggling badly..

Answers

Answer:

make it so that its flat or turn it left

Step-by-step explanation:

Solve for x: 5(x + 3) = 4(x - 3)
-18
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Answers

Answer:

x=27

Step-by-step explanation:

It's gonna be okay! Just breathe!

You got this I believe in you!!

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