April shoots an arrow upward at a speed of 80 ft/sec from a platform of 25 ft. High. The pathway of the arrow can be represented by the equation h = -16t^2 + 80t + 25, where h is the height and t is the time in seconds. What is the maximum height that the arrow reaches

Answers

Answer 1

Answer:

125feet

Step-by-step explanation:

Given the equation that modeled the height expressed as h = -16t^2 + 80t + 25, where h is the height and t is the time in seconds.

The arrow reaches the maximum height at dh/dt = 0

dh/dt = -32t + 80

0= -32t+80

32t = 80

t = 80/32

t = 2.5secs

substitute t = 2.5 into the formula;

h = -16t^2 + 80t + 25

h = -16(2.5)^2 + 80(2.5) + 25

h = -16(6.25)+225

h = -100+225

h = 125

Hence the maximum height the arrow reaches is 125feet


Related Questions

HELP PLEASE == PGR is an isosceles triangle in which PQ=PR
M and N are points on PQ and PR such that angle MRQ and angle NQR.
Prove that triangles QNR and RMQ are congruent

Answers

Answer:

Angle NQR congruent to Angle MRQ because it is given

Side QR is congruent to side QR because they are the same side

Angle NRQ is congruent to angle MQR because they are the equal angles of an isosceles triangle

Triangle QNR is congruent to Triangle RMQ by ASA

Step-by-step explanation:

It's actually pretty simple.  first you should be able to know angles NRQ and  MQR are congruent because triangle PQR is isosceles .  So now if you look at the two other triangles you can say angle NQR is congruent to angle MRQ, because of the information given, and with wht I just explained angles NRQ and MQR are congruent.  So now you can say the two triangles are similar by the angle angle postulate.  

To Say they are congruent since QR is the same for both triangles you can use the ASA postulate

please answer me this question ​

Answers

Answer:

x=0.4 and y=0.6

Step-by-step explanation:

Given :

[tex]\frac{x}{2} +y=0.8\\x+2y=1.6.......(1)\\\frac{7}{x+y/2} =10\\\frac{7}{2x+y/2} =10\\\frac{7*2}{2x+y} =10\\\frac{14}{2x+y} =10\\14=10(2x+y)\\14=20x+10y.....(2)[/tex]

From solving above equation (1) and (2)

x=0.4

y=0.6

Solve by finding the square roots: 3x2 - 9 = 3

Answers

Answer:

x= 2 or x= -2

Step-by-step explanation:

3x² -9= 3

+9 on both sides:

3x²= 9 +3

Simplify:

3x²= 12

Divide by 3 on both sides:

x² =4

Square root both sides:

[tex]x = \sqrt{4} [/tex]

x= 2 or x= -2

3
Find the value of x. Round your answer to the nearest tenth.
22
X
58

Answers

Answer:

13.7

Step-by-step explanation:

take 58 degree as reference angle

using tan rule

tan 58 =opposite/adjacent

1.600=22/x

x=22/1.600

x=13.75

x=13.7

Read the table.



What does the middle column show?

the names of the countries on the table
how long residents are likely to live
the average education of residents
how the birth rate has changed

Answers

Answer:

How long the residents are likely to live

hope this helps u out

Answer:

How long the residents are likely to live

Step-by-step explanation:

just did it on edge 2022

hope this helps

what is 4b + 6 ≤ 18. I don't know how to solve it and don't know the answer.

Answers

Answer:

b≤3

Step-by-step explanation:

For this problem, you want to solve it similarly to linear equations.

We start with 4b+6≤18.

Subtracting 6 from both sides gives 4b≤12.

From there, in order to isolate the b, we must divide both sides by 4, leaving b≤3.

**This content involves solving linear inequalities, which you may wish to revise. I'm always happy to help!

find p(0),p(1)in (a)p(X)=X⁴_X/2+3X (b) p(X)=2+y+2y²_y³​

Answers

Answer:

i hope this will help u

Step-by-step explanation:

if p(0) so answer is 0

if p(1) so answer is 7/2 or 3.5

You roll 2 6-sided dice 50 times. How many times should you theoretically get a sum of 7?

Answers

Okay, so it sounds like you just need a die to do this assignment. If you need a website, you can use this: https://freeonlinedice.com/#dice

There should already be one die here. Just click "roll" and record the value at the top of the screen labeled "total." Do this 30 times and write down the values each time.

I am sorry for not giving you the answer right away, I would but my school blocked the website of the link I put above.

solve for x.round to the nearest tenth, if necessary.​

Answers

sin 42= 64/x
64/sin 42=95.6

please help me i need help

Answers

108,375 is the correct answer

Answer:

108, 375 m²

Step-by-step explanation:

Rectangular field area: 280 m·390 m=109200 m²

Barn area: 25 m·33 m=825 m²

Subtract

109200 m²-825 m²=108375 m²

Length of radius r ?

Answers

Answer: 10

We know that the radius of a circle is always perpendicular to the tangent. And so apply the Pythagoras theorem.

Answer:

The answer would be 10.

Step-by-step explanation:

We're doing C^2 - B^2 = A^2 since we know the hypotenus. 26 x 26 is 676 and 24 x 24 is 576. Subtract the two products to get 100. The square root of 100 is 10.


(6x-4) (3x+4)º find the value of x.

Answers

Answer:

x = 20

Step-by-step explanation:

The angles form a straight line so they add to 180 degrees

6x-4 + 3x+4 = 180

Combine like terms

9x=180

Divide by 9

9x/9 = 180/9

x= 20

20

Hope this helps! :)

______________

The graph represents the piecewise function:
f(x)= { __, if -1 ≤ x ≤ 1; __, if 3 ≤ x ≤ 5 }

Answers

Answer:

4, x-1

Step-by-step explanation:

The first piece of this function goes from -1 to 1. Since that part of the function is a horizontal line at y=4, and has no slope, this first part is just 4.

The second piece of this function goes from 3 to 5. This piece does have a slope that you can either solve or just from reading the graph will give you a slope of 1. Since one of the points is (3, 2), we can figure out that the y-intercept is -1. (You can also just extend the line across the y-axis). When putting this equation together we get x-1 being the second part.

The solution is:

The graph represents the piecewise function:

f(x)= { 4, if -1 ≤ x ≤ 1;

         (x - 1), if 3 ≤ x ≤ 5 }

What is graph?

In mathematics, the graph of a function f is the set of ordered pairs, where {\displaystyle f(x)=y.} In the common case where x and f(x) are real numbers, these pairs are Cartesian coordinates of points in two-dimensional space and thus form a subset of this plane.

here, we have,

The first piece of this function goes from -1 to 1.

Since that part of the function is a horizontal line at y=4, and has no slope, this first part is just 4.

so, we have,

The second piece of this function goes from 3 to 5.

This piece does have a slope that you can either solve or just from reading the graph will give you a slope of 1.

Since one of the points is (3, 2), we can figure out that the y-intercept is -1. (You can also just extend the line across the y-axis).

When putting this equation together we get x-1 being the second part.

Hence, The solution is:

The graph represents the piecewise function:

f(x)= { 4, if -1 ≤ x ≤ 1;

         (x - 1), if 3 ≤ x ≤ 5 }

To learn more on graph click:

brainly.com/question/17267403

#SPJ7

Question 6 of 10
If the coefficient of determination for a data set containing 8 points is 1, how
many of the data points must lie on the regression line for the data set?
A. 8
B. 6
C. 7
D. 5
SUBMIS

Answers

Answer:

5Sabihin mo po Kung mali

Answer:

A. 8

Step-by-step explanation:

Keep in mind my answer choices are in a different order.

find the value of x.

Answers

Please take another picture with the full question. I cannot help you with your question if not everything is presented.

I NEED HELP WITH MATH

Answers

38.

f(3)

= 5(3) - 2

= 15 - 2

= 13

39.

5x - 20 = 0

=> 5x = 0 + 20

=> 5x = 20

=> x = 20/5

=> x = 4

38.)

option H

F(3) = 13

39.)

option C

40.)

{-4 , 8}

7) If £1 = €1.14.
Work out what €144 is in pounds.

Answers

Answer:

[tex]126\frac{6}{19}[/tex] £

Step-by-step explanation:

£1 = €1.14  /[tex]*\frac{144}{1.14}[/tex]

£[tex]\frac{144}{1.14}[/tex]=144€= [tex]126\frac{6}{19} \\[/tex]£

.find x in the following figure ​.plsss helppp!!!

Answers

100 hope this helps!!!

For each equation choose a value for x and then solve to find the corresponding y value that makes that equation true. Write your solutions in the form of an ordered pair (x,y).
1)6x=7y
2) 5x+3y=9
3) y+5-(1/3)x =7

Answers

Answer:

3) y+5-(1/3)x =7

Step-by-step explanation:

Find at least three solutions to the equation y = 2x, and graph the solutions ... points to make a line. Find the slope of the line. y=3x- x. 3x-1 . -6 -5 -4 -3 -2 -1 ... Solve the following equation for y, and then identify the slope of the line​

If 13 candy bars cost $21.97, how much do 20 candy bars cost?

Answers

Answer: $33.80

Step 1: Find out the cost for one candy bar

To find out the cost for one candy bar, you will need to divide $21.97 by 13. Another way to say this would be by rewriting the equation as 13x=21.97. After dividing, you see that one candy bar is $1.69.

Step 2: Find out the cost for 20 candy bars

To figure out the cost of 20 candy bars, simply multiply the price for one by 20. Another way to say this would be by rewriting this as 1.69x20=33.8.

Step 3: Your answer!

By completing the above steps, you have figured out the answer of $33.80.

Hope this helps!

pretty simple just fill in the blank from the drop down menu please !

Answers

Answer:

vertical hope this helps

Answer:

vertical, goodluck

Step-by-step explanation:

I took this

A communication tower is built on the slope of a hill. A surveyor, 50m uphill from
the base of the tower, measures an angle of 50 between the ground and the top
of the tower. The angle from the top of the tower to the surveyor is 60°.
Calculate the height of the tower to the nearest metre. [A2]
А
60
tower
50
O surveyor
50 m
B

Answers

Answer:

Step-by-step explanation:

a

The height of the tower is 44.23 meters after applying the sin law in a provided triangle.

What is the trigonometric ratio?

The trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.

We have:

A communication tower is built on the slope of a hill.

A surveyor, 50m uphill from the base of the tower, measures an angle of 50 between the ground and the top of the tower.

Applying sin law:

sin50/AB = sin60/50

AB is the height of the tower.

sin50/AB = 0.0173

AB = 44.227 ≈ 44.23 meters

Thus, the height of the tower is 44.23 meters after applying the sin law in a provided triangle.

Learn more about trigonometry here:

brainly.com/question/26719838

#SPJ2

im gonna die. help me pls

Answers

Answer:

m = 14n, 6 and 8

Step-by-step explanation:

The m row is always 14x larger than the N.

The next two would be 6 and then 8

4 and one-third divided by 5 and StartFraction 1 over 6 EndFraction The reciprocal of a fraction must be found to solve the problem. What is the reciprocal fraction that is required?

Answers

Answer:

multiply by the reciprocal of 31/6

Step-by-step explanation:

4 and one-third = 4 1/3

5 and StartFraction 1 over 6 EndFraction = 5 1/6

Therefore,

4 1/3 ÷ 5 1/6

= 13/3 ÷ 31/6

To solve the problem, multiply 13/3 by the reciprocal of 31/6

The reciprocal of 31/6 = 6/31

So,

13/3 ÷ 31/6

= 13/3 × 6/31

= (13 * 6) / (3 * 31)

= 78 / 93

= 26/31

What is the last answer and how is it wrong?

Answers

Answer and Step-by-step explanation:

I think it wants you to keep it in the form it showed. I remember doing this this year, so it should be:

[tex]\frac{f(a+h)-f(a)}{h} = \frac{3a +3h + 6 -(3a + 6) }{h}[/tex]

Then after this step you distribute the negative, and combine like terms. After, you divide the h and you get 3 as your answer.

IF it still doesn't work like how I showed it, contact your teacher for help, saying you are pretty sure you got it right (if you put mine and it didn't work) but it is saying it is incorrect.

#teamtrees #PAW (Plant And Water)

HELP!!! Chords AB and BD intersect in circle O as shown in the diagram. Two of the angle measurements are marked. What is mCED?
A. 24 degrees
B. 65 degrees
C. 72 degrees
D. 130 degrees

Answers

I would have loved to help but you didn’t attach the picture as far as I’m concerned or I don’t see it sorry ^^;;

Answer:

48+82)/2 = 65  

Answer C

Step-by-step explanation:

48+82)/2 = 65

(I just had this exact same question so I saw the picture)

Match each equation with the correct description of what happened. Draw a line or write the letter to show the
matches. One of the descriptions will not have a match. Write two equations showing the described move.
3x +7 = 5x
12x + 3 = 6
10 - 6x = 4 + 5x
-3(4x - 3) = -15
4x - 3 = 5
5x = 12
-3 1
5x = -36
7 = 2x
7 - 6x = 1 + 5x
4x + 1 = 2
Add -3x to
Add 3x to each
Add-3 to each Multiply each
side.
side by%.
Multiply each
side by -3.
Multiply each
side by -%
each side.
side
E
F
A
B

Answers

Answer:

m

Step-by-step explanation:

pls help. I WILL KISS U!4!2!3! (REAL!!) pls n ty.

Answers

Answer:

AB=36

Step-by-step explanation:

BC=AC

AB=√(AC²+BC²)=√[(18√2)²+(18√2)²]=√(2×18²×2)=2×18=36

180 miles in 3 hours, what's the unit rate?

Answers

Answer:

60 or 60:1

Step-by-step explanation:

You will have to divide 180 by 3 which is 60 or you can divide 160 / 3 = 60 & divide 3 / 3 = 1.

Answer:

60

Step-by-step explanation:

60

Members of the drama club held a car wash to raise funds for their spring musical. They
charged $3 to wash a car and $5 to wash a pick-up truck or a sport utility vehicle. If they
earned a total of $425 by washing a total of 125 vehicles, how many of each did they wash?
Use c to represent the number of cars and to represent the number of trucks.

Answers

Answer:

100 cars

25 trucks

Step-by-step explanation:

$3c + $5t = $425

c + t = 125 vehicles

($3 * 100) + ($5 * 25) = $425

100 + 25 = 125

Therefore, they washed 100 cars and 25 trucks

Hope this helps!

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