Sylvia launches a bottle rocket into the air. The function h(t)= 115t-16t^2 gives the height of the bottle rocket, in feet, seconds after it is launched. Using a table or graph, about how many seconds did it take for the bottle rocket to reach a height of 200 feet? Round your answer to the nearest second.

Answers

Answer 1

Answer:

4 seconds to reach 200 feet

Step-by-step explanation:

You can use Desmos (graphing calculator) then plug in the equation and you will find the x-values are 7.188 and 0- the origin.

Divide 7.188 by 2 (this is also solving for the midpoint/axis of symmetry) and you get 3.594

Round 3.594 to the nearest second which would be 4 seconds.

Hope that helps and have a great day!


Related Questions

ten less then quotient of a number and 3 is 8

Answers

Answer:The answer is 6

Answer:

x =54

Step-by-step explanation:

I assume you need to find the number .

Let x = the number(AKA the variable)

x/3 - 10 = 8

x/3 = 18

x =54

If Triangle Q S R is congruent to triangle Y X Z describes two triangles, which other statement is also true?
Triangle Q R S is congruent to Triangle X Y Z
Triangle Q R S is congruent to Triangle Y Z X
Triangle Q R S is congruent to Triangle Z X Y
Triangle Q R S is congruent to Triangle X Z Y

Answers

Answer:

The second one because q goes with y r goes with z and s goes with x

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I got it right on edg

I NEED HELP

Slope-Intercept Form
x=-4

I don't know how to graph this, I basically just need help learning it, I barely understand Slope-Intercept Form.

Answers

Since
x
=

4
x
=
-
4
is a vertical line, there is no y-intercept and the slope is undefined.
Slope: Undefined
y-intercept: No y-intercept
Tap to view steps...
image of graph
x is the coefficient and -4 is the variable. Slope-intercept form, x=-4, of linear equations, emphasizes the slope and the x-intercept of the line.

Write an algebraic expression that can get you the final price of an item that originally cost $x with 10% off?

Answers

Answer:

x - (x*0.1)

Step-by-step explanation:

A percentage is just a fraction/decimal. you'll get 10% of the number with the equation in parentheses, and we need to do that first. then we need to take the original price and subtract 10%

Which of the follow would make the statement true when inserted on the line?

Answers

Answer:

D

Step-by-step explanation:

It would be number D, 0.45.

what is the approximate area of the circle? Use 3.14 for n.

( 25 in. ) <------ this is a circle lol
(_____._____)

PLEASE HELP ME!!! (if you can´t its okay) Thank you

A. 78 square inches

B. 157 square inches

C. 491 square inches

D. 1,963 square inches

Answers

Answer:

12.5 in^2

Step-by-step explanation:

[tex]C=2\pi r[/tex]

25=2(3.14)r

25=6.28r

Divide by 6.28 on both sides:

3.98089172=r

Now use [tex]\pi r^{2}[/tex]:

12.5 in^2

Your answer is b 157 square inches

First-person to answer correctly gets brainiest

Find an equation for each line.

Answers

Green = -1x - 1
Black = -2x
Orange = Y = 4
Blue = X = -4
Black: -2x
Green: -x -1
Blue: X=-4
Orange: Y=4

2. Write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. Show all your work, including the points used to determine the slope and how the equation was determined.

Answers

Answer:

y=x

Step-by-step explanation:

By using the (y2-y1)/(x2-x1), you can find y=mx+b

Points: (30,30) and (60,60)

(60-30)/(60-30)= 30/30=1

Your m value (slope) is 1.

For the y-intercept, your value is 0

The full answer is y=x

As per linear equation, the required equation of the given graph is y = x.

What is a linear equation?

"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.

The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant."

Here, the graph is a straight line.

Therefore, the equation of the given graph must be a straight line.

Again, the graph passes through points (30, 30) and (60, 60).

Therefore, the slope(m) of the given straight line is

[tex]= \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\= \frac{60-30}{60-30}\\ = \frac{30}{30}\\ = 1[/tex]

The graph of the straight line passes through the point (30, 30).

Putting this value in the standard equation(y = mx + c), we get:

30 = (1)(30) + c

⇒ c = 0

Therefore, the y-intercept of the straight line is 0.

Now, the required equation of the straight line is

y = mx + c

⇒ y = (1)x + 0

⇒ y = x

Learn more about a linear equation here: brainly.com/question/11897796

#SPJ2

please help im stuck on these questions

Answers

Answer:

may I help u....................

....... m

Step-by-step explanation:

For no. 3

x - 3 = 3 - x

x + x = 3 + 3

2x = 6

x = 6 / 2

x = 3

For no. 4

3(x + 4) = 3x + 4

3x + 12 = 3x + 4

3x - 3x = 4 - 12

0 = - 8

After rectangle WXYZ is translated 4 units to the left, what are the coordinates of X’?

Answers

Answer:

4,2

Step-by-step explanation:

Answer:

(0,2)

Step-by-step explanation:

Pls, help I'm studying for a test hers the Q
Use place value reasoning and the first quotient to compute the second quotient.
48.6÷30=1.62
48.6÷3=
Then Use place value to explain how you placed the decimal point in your answer.

Answers

Is 16.2 because 3 goes in to
48.6 16.2 times

Answer:

16.2

Step-by-step explanation:

As you see in 48.6 ÷ 30 =  1.62 it just divides.

Question 1. 162 based off of ^

Question 2. 16.2

Same with 10 x 10 that equals 100

1.2 x 10 = 12.

Hope this helps you with you upcoming test, good luck with the test! <3

Omg plsss someone help i rly don't get this question!!! TYY

Answers

Ok sorry but I see someone is online can you help
With a science question
Answer: 65856in I think you only have to multiply both of the numbers and this is what I got

Please help me answer and please actually answer

Answers

Answer:

Ur on a diagnostic i dont want to help but its 1/360

Step-by-step explanation:

1 degrees out of 360 degrees full circle

please i need help asap

Answers

you would have to divide the categories over the budget. after you divide, you would end up with a decimal, so you to convert it into a percentage, you would simply multiply it by 100.

clothing: 6%
housing: 22%
insurance: 8%

Answer:

clothing: 6%

housing: 22%

insurance: 8%

Step-by-step explanation:

Thanks if you help me

Answers

Answer:

A= (1,5)

B=(0,6)

C=(3,9)

Step-by-step explanation:

A=(4.5,1)
B=(0,6)
C=(9,3)

Answer quickly please, I'm going to skip this question in 5 minutes if no answer!

Answers

Answer:

sorry i wouldve helped

PLEASE HELP!!! i will give brainly!!

Answers

answer:

the second one.

- the second row for that table has a difference of 4 which means it's an arithmetic sequence.

The second one is the answer

if 5x5=25 what is 5x5+23-1+1334-13(35)

Answers

The answer is 926 your welcome

5x5+23-1+1334-455

25+23-1+1334-455

48-1+1334-455

47+1334-455

1381-455

926

i believe thats the answer

You use substitution to solve a system of equations and, after simplifying the equations, end with an expression that says 0 = 4. What does that say about the the lines and about the number of solutions to the system?


Sample Response: Since the statement is false, there are no solutions to the system of equations. This also indicates that the lines are parallel.

Check all that you included in your response.
□ The equation is false.
□ False equations indicate no solution.
□ No solution indicates a system with parallel lines.

Hope this helps!

Answers

Answer:

Check the first two.

Step-by-step explanation:

Since the statement is false, there are no solutions to the system of equations. This also indicates that the lines are parallel.

Answer:

Since the statement is false, there are no solutions to the system of equations. This also indicates that the lines are parallel.

Step-by-step explanation:

PLZ HELP WILL MARK BRAINLIST! Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or the same as the original value.

Answers

Answer

Greater than original- A 100% increase followed by a 33.3333 decrease.

Less than original- A 75% decrease followed by a 25% increase. The other two are in this category as well

Same as original- A $20 decrease followed by a $20 increase.

Please mark me brainliest

Answer:

mark the other guy braninliest, you need 2 people 2 answer :)

Step-by-step explanation:

i need help i will give brainliest pls and also thanks

Answers

B. Y= x+ 48 trust me bro.

Answer:

b

Step-by-step explanation:

Y= x+ 48

just took the test

Hey I need an answer ASAP, please



Point Z (-2, -7) is a reflection across the x-axis. What was the starting point?

Answers

Answer:

the starting point was (-2,7)

Answer:

not helping you bc u were being mean on last question i did>x(

Step-by-step explanation:

can I pleas get some help?

Answers

Part A: Jin sells 20 tickets to the students and sells 35 tickets to adults

My reasoning: well considering that there is 4 students and each student pays $5 for one ticket you would multiply 5 and 4 and get 20. And that there is 5 adults and that the cost to get in is $7 so 5 times 7 is 35

Part B: Jin received 15 more adult tickets than students tickets

My reasoning: well because 35-15 is 20

Whatever he/she said hopefully this helps you

Uhhh pls help thank you

Answers

Answer: you multiply the first numbers by 5 that are on the left and on the right you divide the numbers.

Step-by-step explanation: hope this helps!

20 POINTS


Which quadrilaterals always have consecutive angles that are supplementary?

A. Parallelograms

B. Rectangles

C. Rhombi

D. Squares


Which quadrilaterals always have diagonals that are perpendicular?

A. Parallelograms

B. Rectangles

C. Rhombi

D. Squares


Which quadrilaterals always have diagonals that bisect each other?

A. Parallelograms

B. Rectangles

C. Rhombi

D. Squares

Answers

Answer:

1. is A

2. is c and D

3. all of them

1: a
2: c and d
3: all

Please help 25 points and brainlist if right.

Answers

6. 5. That’s the answer hope it helps
The answer above is correct

Evaluate 3z- 3 when z=7

a 34
b 21
c 18

Answers

Answer: C (18)

Step-by-step explanation: If we plug in 7 for z, 3 times 7 is 21. 21-3=18.

Answer:

C

Step-by-step explanation:

Since z = 7 the equation would be 3(7) - 3

You would multiply 3 with 7 and get 21

Then you would subtract 3 from 21 and get 18

hope this helps.

Melanie spent four hours babysitting. She charges $16 up front and then an additional charge per hour. The total amount she earned can be represented by the expression $4x + $16. What expression represents the amount she earns each hour?

Please give me the expression.. if u just say i don't know i will report ;)

Answers

Answer:

She earns $4 x is representing the hours.

Step-by-step explanation:

16 is the charge up front.

I can infer that the additional charge is $4 because x represents the hours because we don't know how many hours she's going to spend there.

Hope this helps! <3

Algebra 1 pls answer and reported if not and also u get Brainly if correct

Answers

Answer:

I believe the answer for this is the 4.

Step-by-step explanation:

n/a

Answer:

(4).

Step-by-step explanation:

Use the vertical line test. Take a pencil/pen and move it along the x-axis parallel to the y-axis. If a pencil intersects the graph more than once for any value of "x" then the graph is not the graph of a function.

Which phrase matches the equation -3r + 5 = 28?
Group of answer choices

The product of negative three and a number plus five equals twenty-eight.

The sum of negative five plus three times a number equals twenty-eight.

The sum of three and a number times negative five gives twenty-eight.

The product of three times a number equals twenty-eight.

Answers

The product of -3 and a number +5 equals 28
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