Hello! Please answer this question with all of the info it is asked for. Please be sure to include all of your work and share any of your thoughts you had when solving. Please do not answer unless you know the answer. Thanks! Good Luck!

A golf ball is launched straight up into the air from the ground with an initial velocity of 160 ft/s. The function that models the ball's height is: h(t) = -16t^2 + 160t.

a) Find how long it takes for the golf ball to reached its maximum height.

b) Determine how long the golf ball is in the air before it hits the ground.

c) Determine the maximum height that the golf ball reaches.

Answers

Answer 1

Answer:

a) 5 secb) 10 secc) 400 m

Step-by-step explanation:

Given is the quadratic function:

h(t) = -16t^2 + 160t

This gets maximum value at vertex, which is achieved at:

x = -b/2a, of y = ax^2 + bx + c

In our case:

t = -160/2(-16) = 5 seconds

Maximum height is at vertex:

h(5) = -16*5^2 + 160*5 = 400 m

Time the ball hits the ground, h(t) = 0:

-16t^2 + 160t = 0t^2 - 10t = 0t(t - 10) = 0t = 0 seconds is the starting pointt = 10 seconds is when the ball hits the ground

Related Questions

Plz I will chose you the brainlest. (Chose all that apply)

Answers

Answer:

C

Step-by-step explanation:

Let us rule out the first one. c+11 is not equivalent.

The second one does not work either because it is adding the two terms instead of multiplying.

The last one does not work either because again, it is adding.

C, the third one works. This is because using multiplaction, you can rearrange the order of the terms and still get the same answer.

Therefore, the third one

Hope this helps! :)

Answer:

I think it is C and D

Step-by-step explanation:

!!!!

Which shape is an example of rotational symmetry

Answers

C should be the answer as it’s equal in width and length on all sides

I GIVEEE BRAINLIST //

Answers

Answer:

-20% aka 20% decrease

Step-by-step explanation:

Answer:

450 %20

Step-by-step explanation:

c< (78/10 - 6/10) ÷ 9/10​

Answers

Answer:

c < 8

Step-by-step explanation:

(50 POINTS) (PLEASE ANSWER THE QUESTION, NOT JUST TRY AND TAKE MY POINTS, I NEED HELP ON THIS SO DO NOT ANSWER IF YOU DO NOT KNOW OR ARE JUST TRYING TO TAKE MY POINTS)
Is there a proportional relationship between number of sandwiches and the cost of the order? Explain how you know.
(The picture shows what the relationship is now all I need to find is if it’s proportional or not, and why. Can you help me please? It’s homework, and it’s due in 5 minutes.)

Answers

Answer:

No, there is no proportional relationship

Step-by-step explanation:

The proportional relationship is:

y = kx, which is a special form of linear equation, with zero y-intercept

In the given case we have:

y = 4.5x + 10

This is a linear function but not proportional relationship because it has y-intercept, different than zero

What is the result of 8(x - y)? The value for x is -5 and y is -2

Answers

Answer:

8(-5 - -2) = 24. Inside the parantheses is 3. Then you'd multiply 8, which is 24

Step-by-step explanation:

Answer:

-24

Step-by-step explanation:

I got my answer by plugging in the value of the variables into the equation:

8(x - y)

8((-5) - (-2))

8(-3)

-24

I hope this helps! :)

The sum of the interior angles of a triangle is _______. 90° 180° 270° 360°

Answers

I think it’s either 180 or 360

Answer:

180

Step-by-step explanation:

Graph: y=3/4x+5 Please let me know guys

Answers

what do you need to know bud

I am in desperate need of help

I will give out as many points as I can

please tell me where to place them

Answers

Wait...

This is map!

U are not supposed to be cheating in MAP!

the bottom point is 104! 71+104 =175
i’ll try and work the other points give me a minute!

What should managers use if they want to identify and respond in a timely manner to social and political shifts?

Answers

Answer:

They need to use issues management

Step-by-step explanation:

Due to the fact that social and political shifts are usually quite complex in terms of the possible issues that arise from them, managers are best served to use Issues management because it is an anticipatory and strategic management process which aids organizations in quick & timely detection and response to changes in the socio - political system or environment.

heather spend 2/7 of her money buying presents. she then had €48.65 left how much had she at first?​

Answers

Given :

Heather spend 2/7 of her money buying presents.

She then had €48.65 left.

To Find :

The initial amount of money she had.

Solution :

Let, initial amount she had is €x.

So,

[tex]x - \dfrac{2x}{7} = 48.65\\\\\dfrac{5x}{7} = 48.65 \\\\x = \dfrac{48.65\times 7}{5}[/tex]

x = €68.11

Therefore, initially he had €68.11 .

Help please......................

Answers

7 because 4+2=6 and 1/2+1/2=1 so 6+1=7

Answer:

6 1/2

Step-by-step explanation:

4 1/2+2 1/2

= 9/2+5/2

=14/2

=7

Hope This Helps, BadAtMath99

Jada has a coin jar containing n nickels and d dimes worth a total of $3.65. The
equation 0.05n + 0.1d = 3.65 is one way to represent this situation.
Which equation is equivalent to the equation 0.05n +0.1d = 3.657

Answers

Answer:5n+10d=365.7 pennies

Step-by-step explanation:

a train is travelling at a constant speed in ten minutes it travels 24 km work out how far it travels in 20 minutes

using proportion

Answers

If it travels at a constant speed for twice the amount of time, the train should travel twice the distance, or 24 * 2 = 48 km.

Please help with this!! Triangles and angles

Answers

Answer:

Hello, for the second question, you can actually form a triangle from the line. From there, you can see the height (aka y) will be easier to solve. I hope this helps!

Ans: 1) 47.5

2) 3.4

Step-by-step explanation:

HELPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Step-by-step explanation:

The lines represent the lines of symmetry where the image can be reflected upon. Hence it is reflectional.

The dot in the middle of the image tells us that the image can be rotated about the dot to produce the exact same image. Hence it is rotational.

The answer is both rotational and reflectional.

Answer:

I broke it to phrases. Make sure to read both.

It is rotational symmetry. This is because rotational symmetry means it is able to be rotated, and looks the same. This is true with this figure. The lines demonstrate that it is an equal dimensioned 2D shape.

It is ALSO reflection symmetry because this means it can be split through the center and looks exactly the same, as if it was a reflection. This is true here too because it has the same amount of lines split through the same angle on each side making it equal. You can also see a line already going through the shape, and as you can see if you look at see side it looks equal, like a reflection.

The answer is D.

LAST ONE! Simplify the following expression.

Answers

Answer:

5+5root3

Step-by-step explanation:

Answer:

5+5root3

Step-by-step explanation:

sorry if its wrong

2/3 parts of the earth 's surface is covered with water.
(i) Express it in percent.
(II) How many percent is the continental part ?​

Answers

Answer:

Water =2/3× 100%=200/3%=66.67%

So land will be 100% - 66.67%

=33.33

1. If you make 8 1/5 cookies in 1/4 of an hour, how many cookies can you make in one hour? Find
the unit rate.

Answers

Answer:

32.8

Step-by-step explanation:

you divide 8 1/5 by 1/4 to find the unit rate.

What is the inverse of the function f(x) = 4x + 8?

Answers

Answer:

h(x) = (1/4)x - 2 which is choice A

Step-by-step explanation:

Replace f(x) with y. Then swap x and y. Lastly, solve for y to get the inverse.

f(x) = 4x+8

y = 4x+8

x = 4y+8

x-8 = 4y

4y = x-8

y = (x-8)/4

y = x/4 - 8/4

y = (1/4)x - 2

h(x) = (1/4)x - 2

Estimate.Solve problem

3/6+1/3=

Answers

Answer:

5/6

Step-by-step explanation:

5/6 would be the answer simplified I hope that helps :)

Answer:

5/6 which is 0.83

Step-by-step explanation:

Help I don’t understand the question

Answers

Answer:

g=8

Step-by-step explanation:

games to wins are the same

g:4=6:3

g=8

Answer:

2

Step-by-step explanation:

the answer is

(PLEASE HELP ASAP ILL MARK BRAINIEST)
In the figure below, Triangle ABC is similar to Triangle XYZ. What is the length of YZ? Enter only the number.

Answers

Answer:

The answer would be 24

Step-by-step explanation:

8 x 3 = 24

What is the vertex of the equation y = (x - 3)2 + 7?

Answers

Answer:

(3,7)

Step-by-step explanation:

Nancy has 7 boxes of tomatoes. Each day, she picks another
2
box. How many boxes of
tomatoes will Nancy have in 6 days? Write an equation, complete the table, and then graph to
solve the problem.

Answers

Answer:

19 boxes of tomatoes

Step-by-step explanation:

If she starts with 7 boxes of tomatoes and she picks 2 more each day for 6 days then you can multiply 2 by 6 and get 12 tomatoes then you add the 7 boxes she originally started with and you get 19 boxes of tomatoes.

The number of boxes Nancy had after 6 days is 19, the equation representing the given phrase is y = 2x + 7, and the graph is attached below.

What is graph?

A collection of objects is arranged in a graph, where some object pairings are conceptually "linked." Each pair of connected vertices is referred to as an edge, and the objects are represented by mathematical abstractions known as vertices.

Given:

Nancy has 7 boxes of tomatoes,

Each day, she picks another 2 boxes,

The equation which will represent the above phrase is shown below,

Total number of tomatoes = The number of tomatoes she already had + number of days × each day's tomatoes picked by Nancy,

Assume the total number is y and the number of days is x then,

y = 7 + 2 × x

y = 2x + 7

Put the value of x = 6,

y = 2 × 6 + 7

y = 12 + 7

y = 19

Thus, she has a total of 19 boxes of tomatoes after 6 days.

To know more about Graph:

https://brainly.com/question/10712002

#SPJ2

some one please help me ​

Answers

Answer:

b>k c>L  ac>JL  bc>KL

Step-by-step explanation:

poggers

Answer:

B = K

C = L

AC = JL

BC = KL

hope this helps!

help me please the first answer gets the brainiest

Answers

I took a screen shot to mark the dots I hope this helps

Answer:

that is simple, use the graph and put parenthesis around say 1 and 2 then graph it then keep doing that throughout the graph if you want further explanation just ask

Step-by-step explanation:

Pentagon WFNSC is shown on the coordinate grid. Pentagon WFNSC is dilated with the origin as the center of dilation using the rule (x, y)→(3x, 3y) to create pentagon pentagon W'F'N'S'C'. Which statement is true? Pentagon W'F'N'S'C' is larger than pentagon WFNSC because the scale factor is greater than 1. Pentagon W'F'N'S'C' is larger than pentagon WFNSC because the scale factor is less than 1. Pentagon W'F'N'S'C' is smaller than pentagon WFNSC because the scale factor is less than 1. Pentagon W'F'N'S'C' is smaller than pentagon WFNSC because the scale factor is greater than 1.

Answers

Answer:b

Step-by-step explanation:

 Option A. Pentagon W'F'N'S'C' is larger than pentagon WFNSC because the scale factor is greater than 1.

Transformation of a figure by dilation:  If a point (x, y) is dilated by a scale factor 'k', image point will be given by the rule,

          (x, y) → (kx, ky)

 If k > 1, image point will be larger than its preimage.  If k < 1, image point will be smaller than its image.

Given in the question,

A pentagon WFNSC is dilated following the rule of dilation as,

        (x, y) → (3x, 3y)

Here, k > 3 which shows that the image will be larger than the preimage.

      Therefore, pentagon W'F'N'S'C' will be larger than pentagon WFNSC because the scale factor is greater than 1.

      Hence, Option A will be the answer.

Learn more about the transformation here,

https://brainly.com/question/19682392?referrer=searchResults

A pair of tow trucks are pulling on a trailer that is stuck

in mud. The first truck pulls a a pair of tow trucks are pulling on a trailer that is stuck in mud. the first truck pulls with a force of 10,000

pounds at a 110° angle from the second truck, which is

pulling with a force of 7,500 pounds. What is the

magnitude of the resultant force?

9.821 pounds

10,244 pounds

14,405 pounds

24 226 pounds

Answers

Answer:

R=10,244 Lb

Step-by-step explanation:

In order to solve this problem, we can start by drawing the situation. (See attached picture).

We can look at the forces applied by the trucks as vectors, so in this case, in order to find the resultant force, we can add the two vectors. You can do so by drawing one force after the other and join the start of the first force with the end of the second force to form a triangle. The missing side will be the resultant force. In that triangle I drew there, the inner angle will be found by subtracting 180°-110°=70°

In this case we can find the resultant force by using the law of cosines:

[tex]A^{2}=B^{2}+C^{2}-2AB cos \alpha[/tex]

so we can use the data given by the problem:

[tex]R^{2}=T_{1}^{2}+T_{2}^{2}-2T_{1}T_{2} cos \alpha[/tex]

so we can solve this for R, so we get:

[tex]R=\sqrt{T_{1}^{2}+T_{2}^{2}-2T_{1}T_{2} cos \alpha}[/tex]

now we can substitute:

[tex]R=\sqrt{(10,000Lb)^{2}+(7,500Lb)^{2}-2(10,000Lb)(7,500Lb) cos (70^{0})}[/tex]

which yields:

R=10,244Lb

Answer:b

Step-by-step explanation:

Took the test


g(x) = 3x + 2
f(x) = 4x - 3
Find: f(g(x))

Answers

Answer:

5

Step-by-step explanation:

g(x)=3x+2

g(x)÷x=3x÷x+2

g=3+2

g=5

f(x)=4x-3

f(x)÷x=4x÷x-3

f=4-3

f=1

3x+2÷g=4x-3÷f

2÷g=x-3÷f

5÷g=x÷f

5÷5=x÷1

1=x

1×(5×1)

5

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