A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
time after launch, x in seconds, by the given equation. Using this equation, find the
time that the rocket will hit the ground, to the nearest 100th of second.
y = -16x2 + 130x + 140

Answers

Answer 1

Answer:

10.17 seconds

Step-by-step explanation:

substitute y=0 into the equation

0=-16x²+153x+98

then use the quadratic formula

a = -16

b= 153

c = 98

Substituting values into the Quadratic equation, you get (Round the values to the nearest hundreth):

x₁= 10.17

x₂= -0.60


Related Questions

Jose has scored 533 points on his math tests so far this semester. To get an A for the semester, he must score at least 616 points. Part 1 out of 2 Enter an inequality to find the minimum number of points he must score on the remaining tests in order to get an A. Let n represent the number of points Jose needs to score on the remaining tests. ​

Answers

Answer:

The answer is 612-533=n

find the y-intercept of the parabola y=x^2-5x+9/2

Answers

Answer:

To find the Y-intercept substitute in 0 for all the x's and solve for Y

Your answer would be (0,9/2)

Steps:

Y=0^2-5(0)+9/2

0^2 -5(0)=0

Y=9/2

0 is your x place

and 9/2 is your Y intercept

Answer:

y-intercept = 9/2 or 4.5

Step-by-step explanation:

In the given quadratic equation, y = x² - 5x + 9/2, where:

a = 1, b = -5, and c = 9/2  

The y-intercept is the point at which the parabola crosses the y-axis, and occurs at point (0, c ).  It is the value of y when x = 0. To find out what I mean by this, we can substitute the value of x = 0 into the quadratic equation:

y = x² - 5x + 9/2

y = (0)² - 5(0) + 9/2

y = 0 - 0 + 9/2

y = 9/2

Therefore, the y-intercept (c) = 9/2, and has coordinates, (0, 9/2) or (0, 4.5).

Attached is a screenshot of the graph, where it shows the y-intercept.  

Please mark my answers as the Brainliest, if you find my explanations helpful :)

help solve the problem .

Answers

the answer is 133 times greater

Whoever answers I’ll mark brainliest!

Answers

Answer:

hi

Step-by-step explanation:

i think it is equilaterial triangle

hope it helps :)

Walmart sells a 40-ounce jar of peanut butter for $5.58
What is the Unit Price?

Answers

The unit price is 0.20¢ per ounce.
To find the unit price, you divide the total price by the number of items, and in this case, you divide the total price by ounces

List all the positive even numbers less than 10:

Answers

All the positive even numbers less than ten are:

2,4,6,8

Review the federal income tax table.

Single
If Taxable Income Is between: Then the Tax Due Is:
$0 – $9700 10% of taxable income
$9701 – $39,475 $970+12% of the amount over $9700
$39,476 – $84,200 $4543+22% of the amount over $39,475
$84,201 – $160,725 $14,382.50+24% of the amount over $84,200
$160,726 – $204,100 $32,748.50+32% of the amount over $160,725
$204,101 – $510,300 $46,628.50+35% of the amount over $204,100
$510,301+ $153,798.50+37% of the amount over $510,300



Mustafa earned $95,000 in taxable income in a year from his job as a software developer. How much federal income tax does he owe? Enter your answer as a number rounded to the nearest cent, such as: $42,536.47.

Answers

9514 1404 393

Answer:

  $16,974.50

Step-by-step explanation:

$14,382.50+24% of the amount over $84,200 is ...

  $14,382.50 +0.24×(95,000 -84,200) = $14,382.50 +2592.00 = $16,974.50

Mustafa owes $16974.50 in federal income tax.

_____

Additional comment

Each row of the tax table can be simplified by multiplying out the expression it describes. For the row applicable to this problem, that becomes ...

  14382.50 +0.24(amount -84200) = 14382.50 +0.24×amount -20208

  = 024×amount -5825.50

1. John has 2 options to use gym facilities in his community.
Plan A:
$3 hourly rate.
Plan B:
$2 hourly rate plus $2 entrance fee per visit during off peak hours.
$4 hourly rate with discount $1 per visit during peak hours.
If John chooses plan A, how many hours he has to use the gym facilities per trip,
a. during off peak hours
b. during peak hours
in order to make his payment cost effective (Payment to be lower than plan B). Give a
conclusion for questions above.

Answers

Answer:

B

Step-by-step explanation:

because its even better when u see it be doing math

The output of a function is 7 more than 2 times the input. Write and solve an equation to find the input when the output is 15
Equation:
Solution:

Answers

Answer:

f(x) = 2x + 7

f(15) = 2(15) + 7 = 30 + 7 = 37

Ruby has $130 saved. She is saving $15 dollars more each week. In how many weeks will she have $400 saved to buy the new phone she wants?

Answers

You answer is In 18 weeks he'll have the $400 for the new phone.

I know this because she needs 400 but already has 130 so (400-130=270)

This means that Ruby is missing 270 to get to the 400 that he needs for the phone.He gets $15 per week so now that's (270/15=18).Which means that in 18 weeks Ruby will complete to full $400 that he needs for a new phone.

The required solution of weeks will she have $400 saved to buy the new phone she wants is 18 weeks.

What is arithmetic?

Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.

Given:

Ruby has $130 saved. She is saving $15 dollars more each week.

According to given question we have

let x represent the number of weeks

she saves $15 each week,

then in x weeks she will save = 15x dollars.

Add this to the 130 she has already saved, and at the end of each week we get

15x + 130dollars.

So,

15x + 130 = 400

Subtract 130 from both sides we get

15x-130+130=400-130

15x=270

Divide by 15 on both sides we get

x=18

Therefore, the required solution of weeks will she have $400 saved to buy the new phone she wants is 18 weeks.

Learn more details about arithmetic here:

https://brainly.com/question/11559160

#SPJ2

Amanda's average grade on a set of five test was 88%. She can remember only that the first four grade were 78%, 86%, 96%, and 94%. What was the grade on her fifth test ?

Answers

Answer:

I think the answer is 92%.

The heights of male seniors in high school closely follow a normal distribution N(µ,σ) = N(70.5,2.6) , where the units are inches. a) If we randomly sample the heights of five male seniors, what distribution should the sample mean follow? Give your answers to two decimal places.

Answers

The sample will also be normally distributed, with same mean as the population, so µ = 70.5, but the standard deviation would be divided by the square root of the sample size, so σ = 2.6/√5 ≈ 1.16.

N(70.5, 1.16)

The sample will also be normally distributed, with the same mean as the population(µ = 70.5) and the standard deviation of 1.16 inches.

What is a normal distribution?

A normal distribution is a probability distribution that is used to represent events with a default behaviour and accumulated potential departures from it.

As it is given that the heights of male seniors in high school closely follow a normal distribution N(µ,σ) = N(70.5,2.6), where the units are inches.

Therefore, the mean will be the same (µ = 70.5), but the standard deviation for the sample size of the heights of five male seniors, can be written as,

[tex]s=\dfrac{\sigma}{\sqrt n} = \dfrac{2.6}{\sqrt5} = 1.16[/tex]

Hence, The sample will also be normally distributed, with the same mean as the population(µ = 70.5) and the standard deviation of 1.16 inches.

Learn more about Normal Distribution:

https://brainly.com/question/12421652

y is dirrctly propotional to ∛x y=1 1/6 when x=64. Find the value of y when x=64

Answers

9514 1404 393

Answer:

  1 1/6

Step-by-step explanation:

This appears to be a reading comprehension test.

The problem statement gives you the value of y when x=64, then asks you the value of y when x=64. The answer will be the given value:

  y = 1 1/6

HELPPPPPPP PLSSS!!!!!!!!!!!!!!!!!!!

Answers

11ud
5+6
That’s the answer

Write an equation in point-slope form for the line that passes through the given points.

(4,−6), (6,−4)

Answers

Answer:

y=x-10

Step-by-step explanation:

slope equal to

[tex]m = \frac{ - 4 - ( - 6)}{6 - 4} = \frac{2}{2} = 1[/tex]

y=mx+c(constant)

-6=1×4+c, then c=-10

The answer is:
Is this what you wanted?
I hope it helps you.

3. At the beach, you would like to fill 5 buckets with seashells. You have
8 minutes to do so. If you set a steady pace, how much of a bucket
should
you
fill in each minute?
A. bucket
B. į bucket
c. bucket
D. buckets

Answers

Answer: It will be D

Step-by-step explanation: 5 divided by 8 is 1.2

It would be D because 5 divided by 8 is 1.2

When using substitution to solve this system of equations, what is the result of the first step x=y+1 4=2x+3y

Answers

The answers in photo below

What would the answer be image below

Answers

Answer:

The points would be: (-3, 3) (-4, -1) (2, -1) (1, 3)

Step-by-step explanation:

Because when you move 4 units left, all of the x values in the points will go down by 4, and when you move 2 units down, the y values will go down by 2 units. So when applied to the points shown, you get the answer I put.

I believe this is correct? Hope it helps!

giving all my points
k can someone pls answer this cus I need the answer PER student

For a field trip, a bus company charges a flat fee plus an additional fee per student. For 25 students, the total cost is $132.50. If there are 30 students, the total cost is $145.00. After the flat fee, what is the cost per student?

$4.75

$5.30

$2.50

$3.00

Answers

The answer is $2.50 because you do 145-132.50=12.5
Then you divide by 5 because that’s the difference between students then the final answer is 2.50

Find the surface area and volume of the solid. Round your answers to the nearest hundredth.​

Answers

Answer:

Surface area = 240.34 square units

Volume = 253.03 cubic units

Rectangular prism

Step-by-step explanation:

2(6.8 * 6.1) + 2(6.1 * 6.1) + 2(61 * 6.8) =

82.96 + 74.42 + 82.96 = 240.34

Volume

(6.8 )(6.1)(6.1) = 253.03

HELP LAST ATTEMPT !?!!

Answers

Answer:

x=11

Step-by-step explanation:

35=3x+2 [Vertically opposite angles]

35-2=3x

x=33/3

x=11

Mary decided she will run every 3rd day and play
tennis every 5th day. How many days until she will
run and plays tennis on the same day?

Answers

Answer: the 15th day

Step-by-step explanation:

Skip count by both numbers until you reach the first number they have

   in common;

     3, 6, 9, 12, 15, 28, 21, 24, 27, 30

     5, 10, 15, 20, 25, 30, 35, 40

solve 15 + ( - 15) =

Answers

Answer:

0

Step-by-step explanation:

see photos attached

blah blah

HELP ASAP!!!!!!!!!!!!!!

Answers

Answer:

10

Step-by-step explanation:

just try to make the lines even and get the answer 10

Answer:

the answer is √89........

...

ANSWER QUICK PLEASE!!
Factor the expression 24 y - 40 using the greatest common factor of the terms.
A. 4(6y - 20)
B. 8(3y - 5)
C. 4(24y - 40)
D. 8(3y + 5)

Answers

Answer:

Step-by-step explanation:

B

yes, it is B!!!
good luck on the rest of your assessment!!

What is 9(-7)?
I don't even know this

Answers

-63. Hope this helps!

Can have brainliest?

Answer:

-63

Step-by-step explanation:

If you know how to multiply it without the negative then you could take that answer and then put a negative at the beginning.

-5 (-4p-3)>-105
can i get some help on that?

Answers

Answer:

p>-6

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

20p+15>−105

Step 2: Subtract 15 from both sides.

20p+15−15>−105−15

20p>−120

Step 3: Divide both sides by 20.

20p/20 > -120/20

p>-6

Answer:

p > -6

Step-by-step explanation:

-5(-4p-3) > -105

First, multiply out the left side to get:

20p+15 > -105

Then take fifteen away from both sides to get:

20p > -120

Then divide both sides by twenty to get:

p > -6

Players
Amount
Paid

The table above represents the number of people in a group who played laser tag and the group's total cost to play. Which of the
following represents the rate of change relative to this situation?

Answers

Answer:

C. 4.00 per person

Step-by-step explanation:

I say its 4.00 per person because in each row you mutiply the players and 4.00 you get the other side of the row. Ex 11 players multiplied by 4 dollars per person equals 44.00 dollars in total which the graph shows.

a patio furniture set sells for $935 on installment plan, which includes finance charge the payment plan calls for 15 percent down and the balance in 12 equal paymnets. the ampount of the payment is

Answers

The monthly payment for the patio furniture will be $66.23

Cost of the patio furniture = $935

Since there's a 15% down payment, then the amount that the buyer will pay will be:

= 15% × $935

= 0.15 × $935

= $140.25

Therefore, the amount that is left to pay will be:

= $935 - $140.25

= $794.75

Since the balance will be paid for 12 months, the monthly payment will be:

= $794.75 / 12

= $66.23

Read related link on:

https://brainly.com/question/25092501

Answer:

$66.23

Step-by-step explanation:

See tutor response above

PLS ANSWER NOW GIVING BRAINLIEST TO FIRST PERSON TO ANSWER
Write 1,340 in scientific notation

Answers

Answer:

1.34 × 10^3 is the answer

Answer:

Ok

Step-by-step explanation:

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