The function y = -16t+^2 40 represents the height y (in feet) of a water droplet t seconds after falling from an icicle. After how many seconds does the water droplet hit the ground? Round your answer to two decimal places. ​

Answers

Answer 1

Answer:

The water droplet will hit the ground 1.58 seconds after it started falling.

Step-by-step explanation:

The function:

y = -16*t^2 + 40

represents the height of a water droplet t seconds after falling from an icicle.

We want to find the value of t such that the water droplet hits the ground, and this will happen when y = 0.

Then we only need to solve the equation:

0 = y =  -16*t^2 + 40

0 =  -16*t^2 + 40

16*t^2 = 40

t^2 = 40/16

t = √(40/16) = 1.58

The water droplet will hit the ground 1.58 seconds after it started falling.


Related Questions

HELP ME
ANSWER THIS QUESTION
DONT ANSWER WITH A LINK

Answers

reduce it
so 21/7 = 3/1

16/4=4/1

Answer:

3/1.....4/1

Step-by-step explanation:

Jasmine will buy the same number of stamps every month to add to a stamp collection her grandfather gave her. The table shows the number of stamps Jasmine will have at the end of x months. How many stamps was Jasmine given, and how many stamps will she buy every month?

A. Jasmine was given 65 stamps, and she will buy 5 stamps every month.

B. Jasmine was given 60 stamps, and she will buy 65 stamps every month.

C. Jasmine was given 5 stamps, and she will buy 60 stamps every month.

D. Jasmine was given 60 stamps, and she will buy 5 stamps every month

Answers

Answer:

It is D

Step-by-step explanation:

It could be A but if we read the sentence correctly than we should understand about the number of stamps she bought in every month and how much her grandmother gave her.We should also read the options more than 10 times to understand it

Help me will mark brainliest!!!

Answers

Answer:

a ray can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction. It can extend infinitely in one direction.

Answer:

A ray can intersect a circle in a line segment

Because when a ray will pass through a circle,it will Pass through two points making it a line segment in the circle

Number 8 plssssssssss

Answers

Answer:

It created a single African nation with many states.

Janet is designing a garden in the shape of a trapezoid which is split into three parts: two triangular
flower beds and a rectangular section of grass. Setting up the flower beds costs $3.50 per square
foot. How much will Janet have to spend to set up the flower beds?
PLS HELP

Answers

Ans) 70

Tell me if you need steps

(Am 100% sure with this answer)

203/4108 as a percent
a. 4.94%
b. 20.24%
c. 0.049%
d. 49.42%

Answers

4.94% is the correct one.

I REALLY NEED HELP ??

Answers

Answer: I believe it is 92

Step-by-step explanation:

Unit 2 Mid-Unit Assessment

Answers

Answer:

users are not supposed to help you on test, quiz's or assessments. according to the T.O.S of brainly aka the honor code

Step-by-step explanation:

find the value of given expression

[tex] \sqrt{29 - 4} [/tex]

Answers

So 29-4 =25... which is a perfect square

Answer= +/- 5

Answer:

5

Step-by-step explanation:

[tex] \sqrt{29 - 4} \\ = \sqrt{25} \\ = 5[/tex]

PLEASE HELP

Use the formula √(x2−x1)2+(y2−y1)2 to find the distance between the points(8,2) and (3,8) to the nearest tenth please

Answers

Answer:

Step-by-step explanation:

[tex]d=\sqrt{(3-8)^2+(8-2)^2} =\sqrt{25+36 }=\sqrt{61} \approx 7.81[/tex]

1. There are 6 feet of ribbon in a roll. Samantha uses 3/4 foot pieces of ribbon to decorate gifts. How
many gifts can she decorate with one roll of ribbon?
Write an equation (with solution) to represent
this problem

Answers

Answer:  8

Step-by-step explanation:

take 72 inches and divide it by 9 inches and you will have the answer

If STU is reflected over a horizontal line, what is the length of side S'U'?

Answers

What is the original angle? You didn't provide us with enough information. If the angle is reflected, it'll be the same number of units as the original shape.

Hope this helped.

How do I solve this? i don't know how to set it up.​

Answers

Answer:

yes

Step-by-step explanation:

Answer:

31.5

Step-by-step explanation:

First we want to find what side NP is equal to. To do that we divide 4 by 12

12/4=3 so side mp=3

next we want to find the scale factor of the rectangles. to do that we divide 4 from 9

9/4=2.25

next we want to find what side st is equal too

to do that we multiply 3 by 2.25

3x2.25=6.75

finally we want to find the perimeter and to do that we do 2(6.75)+2(9)

2(6.75)+2(9)=31.5 so the perimeter of rectangle RSTU is 31.5

hope this helps :)

Please help me with this question

Answers

Answer:

4x+6y

Step-by-step explanation:

Amy bought a diamond ring for $6,000. If the value
of the ring increases at a constant rate of 5.8% per
year, how long will it take for the ring to be worth
$19,000?
Show work

Answers

Answer: $13,308

5.8% of 6000 is 348. 348 times 21 is $7,308. add 6,000 to 7,308 and you get $13,308

Step-by-step explanation: amy likes cheap rings LOL

Answer:

54 3/4 years

Step-by-step explanation:

5.8% of 6,000= 348

348x54 3/4=19,053

hope it helps!

please answer asap 17 brainy points is all I had left

Answers

Answer:

A) 69.08 m

Step-by-step explanation:

C=2πr

C=2π(11)

C=22π

C≈69.12

Answer:

drraaaaaa wild'n out boiii

Step-by-step explanation:

Taking my points back.

At his new job, Jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. The equations model his salary options.

y = 9x + 50

y = 10x

What does x represent?

the number of times he opened the store
the number of hours worked per week
the total amount he earns each week
the amount of money earned per day

Answers

The variable x represent the number of hours worked per week.

Answer:

The correct option is B

Step-by-step explanation:

just did the test on Ed.

The set for a school play needs a replica of a historic building painted on a backdrop that is 20 feet long and 16 feet high. The actual building measures 320 feet long by 256 feet high. A stage crewmember writes (x, y) arrow right ( 1/20 x, 1/20y) to represent the dilation. Is the crewmember's calculation correct if the painted replica is to cover the entire backdrop? Complete the explanation.

Answers

Answer:

Stage crewmember's calculation is incorrect

Correct = 1/16x 1/16y

Step-by-step explanation:

Given that:

Dimension of backdrop : 20 feets long ; 16 feets high

Actual dimension of building : 320 feets long ; 256 feets high

The correct scale factor can be obtained thus :

Ratio of backdrop dimension to the actual dimension of building

Length : 20 / 320 = 1 /16

Height : 16 / 256 = 1/16

Hence, stage crewmember's calculation of (1/20x ; 1/20y) is incorrect.

what is 30% of $240?​

Answers

Answer:

72

Step-by-step explanation:

.30×240

72

Answer:

$72

Step-by-step explanation

You need to turn a percent into a decimal. To do that, you move the decimal twice to the left so, 30%=.3.Multiply: 240*.3=72$72

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

Mike bought a bottle of gatorade for $1
and some granola bars for $2.50
each. How many granola bars did he
buy if he spent $11 total?

Answers

Answer:

4 granola bars

Step-by-step explanation:

x is the number of granola bars

1 + 2.5x = 11

2.5x = 10

x = 4

table represents a quadratic function?
Which

Answers

Answer: third graph -4,2 -2,-7

Step-by-step explanation:

James buys a shirt and a pair of socks on sale for 20% off. If the price of the shirt
before the sale was $26 and he spent a total of $26, what was the original price of
the socks? Round to the nearest hundredth, if necessary.

Answers

Answer:

The Price of socks is  

=

$

8

Explanation:

Given -

Discount 25%

Price of shirt before discount  

=

$

24

Amount spent on both shirt and socks after applying discount  

=

$

24

Assume the price of socks  

=

$

x

Then Shirt + Socks before discount =

$

(

24

+

x

)

After discount one has to pay 75% of the article.

Then -

75

100

(

24

+

x

)

=

24

0.75

(

24

+

x

)

=

24

18

+

0.75

x

=

24

0.75

x

=

24

18

=

6

x

=

6

0.75

=

8

The Price of socks is  

=

$

8

How to verify your answer -

One way

Price of shirt =$24

Price of socks =$8

Total =$32

Discount =25%

Discount for $32 is  

32

×

25

100

=

$

8

Amount one has to pay after discount  

=

32

8

=

$

24

Another way is -

Discount 25%

It means after discount it is enough if he pays 75% of the price.

In our case - Actual price is  

=

$

32

75% of $32 is  

=

32

×

75

100

=

2

Step-by-step explanation:

Nancy borrows $5000 at a rate of 16% interest per year. What is the amount due at the end of 5 years If the Interest is
compounded continuously?
$5200
$11.127.70
$800
$11,000

Answers

the answer would be $11,000

Answer:

$11,000

Step-by-step explanation:

- For English class, George must read 168 pages in 7 days. What is the unit rate of
pages to days?

Answers

Answer:

168 pages/7 days = 24 pages/1 day

Hope that helps, dude.

Im struggling a bit can someone help me :)

Answers

Answer:

1

Step-by-step explanation:

Help !!

Determine the value of y, if x is 7.

y = x2 – 5

Answers

If it’s y=2x-5 y=11
If it’s y= x^2-5 y= 44
The answer Y=9
7x2=14
14-5=9

Solve the system of equations by substitution.
3x+2y=10 y=3x-4
x= y=​

Answers

Answer:

x=2;  y=2

Step-by-step explanation:

3x+2y=10

y=3x-4

We can substitute y from the first equation with the second equation:

3x+2(3x-4)=10

3x+6x-8=10

9x=18

x=2

Now plug this in to any of the equations (i used second equation):

y=3(2)-4

y=6-4

y=2

Check your answers:

y=3x-4

2=3(2)-4

2=6-4

2=2

Triangle abc is equilateral which means all three lengths and three angles are equal.

which equation could be used to find the measure of b?

Answers

Answer:

The answer is

[tex]3 x = 180[/tex]

Answer:

OTHER DUDE IS RIGHT.

Step-by-step explanation:

BE SAFE, HAVE AN AMAZING DAY :)

i don’t know the answer

Answers

Answer:

C

Step-by-step explanation:

In order to be able to find the circumference in relation to radius, you have to use the formula C = 2πr

Hope this helped :)

One equation in a system is 4x – 2y = 8. Which equation gives the system no solution?

Answers

Answer:

-8

Step-by-step explanation:

Correct me if i'm wrong

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