A soccer ball is kicked from the ground with an initial upward velocity of 64 meters per second, and the height of the ball can be represented by the equation h = -16t^2 + 64t. After how many seconds will the ball hit the ground?

Answers

Answer 1

Answer:

t = 2 seconds

Step-by-step explanation:

Given that,

h = -16[tex]t^{2}[/tex] + 64 t

where h and t have their usual meaning.

To determine the number of seconds required of the ball to hit the ground, differentiate the given equation with respect to t.

0 = -32 + 64

So that,

32t = 64

t = [tex]\frac{64}{32}[/tex]

t = 2

The ball will hit the ground in 2 seconds.


Related Questions

Martha’s bakery started with 200 cupcakes in the morning. After a busy afternoon, there were only 60 cupcakes left. By what percent did the cupcake inventory drop?

Answers

Answer:

70%

Step-by-step explanation:

140 = 200x

140/200 = x

14/20 = x

7/10 = x

70%

Answer: It dropped by 70%

Step-by-step explanation:

200-60=140

140/200=.70

someone help -2 • (- 4.5 ) =

Answers

Answer:

9

Step-by-step explanation:

The product of two negative numbers is a positive number, and 2(4.5) = 9.

Thus, -2 • (- 4.5 ) = 9

if f(x)=3^x+10 and g(x)=4x-2, (f-g)(x)

Answers

the answer is 12x^x +40x -6^x-20

What is 7% of 300?

please don’t ignore this lol

Answers

Answer:

7/100×300 you get 21 lol

Answer:

7% of 300 = 21

Step-by-step explanation:

Here's how it's done:

7 ÷ 100 × 300 = 21

Hope this helps! :)

Convert 5pie/3 radians to degrees

Answers

Answer:

300 degrees

Step-by-step explanation:

After converting the given equation 5π/3 into degree, the value obtained will be equal to 300°.

What is an expression?

If a mathematical operation includes at least two words that are connected by an operator and either comprise numbers, variables, or both, it is referred to as an expression.

The operations with reflection coefficients include adding, subtracting, multiplying, and dividing. In order to include terms into an expression, a mathematical operation like reduction, addition, multiplication, or division is used.

As per the given information in the question,

5π/3 radians to degree.

To convert radians to degree multiply it with 180/π

So,

5π/3 × 180/π

= 60 × 5

= 300°

To know more about Expression:

https://brainly.com/question/14083225

#SPJ2

if S is midpoint of GA, then?

Answers

that means S is in the middle between G and A

[tex]s \: = \: \frac{g + a}{2} [/tex]

Deloria says she can find the relative frequency of nuts based on another relative frequency. What might she be doing?

Answers

Answer:

frequency of nuts based on another relative frequency. What might

she be doing

nuts:3/30=15%

In ΔMNO, m = 50 cm, o = 35 cm and ∠O=83°. Find all possible values of ∠M, to the nearest degree.

DELTA MATH
leave it blank!!!! dont type anything

Answers

Answer:

No solution

Step-by-step explanation:

I got it right on delta math, just dont write anything and turn that in and it should be correct.

Find the value of angle A and angle B

Answers

hello

so these angles you can apply the "vertically opposite angles are equal" rule

angle "A" is vertically opposite to 138º so therefore angle "A" is 138º

angle "B" is verticall opposite to 42º so therefore angle "B" is 42º

hope this helped and have good day :)

Please please please please please please please please please please

Answers

Step-by-step explanation:

fff7f6cycyxtctvubibinonovuv7c6c4xrci

!!!!!!!! help !!!!!!

Answers

Answer: I think the answer is b but I'm not sure

Step-by-step explanation:

Tracy's Pie Shop recently sold 15 pies, of which 3 were blackberry pies. Considering this data, how many of the next 20 pies sold should you expect to be blackberry pies?

Answers

Answer: 4

Step-by-step explanation:

We can expect that 4 of the next 20 pies sold will be blackberry pies, based on the proportion of blackberry pies in the recent sample of 15 pies.

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

If Tracy's Pie Shop recently sold 15 pies and 3 of them were blackberry pies.

Proportion of blackberry pies = 3/15

Proportion of blackberry pies = 0.2

So, in the recent sample of 15 pies, 20% were blackberry pies.

To estimate how many of the next 20 pies sold should be blackberry pies

Let us assume that the proportion of blackberry pies in the next sample of 20 pies will be similar to the proportion in the recent sample of 15 pies.

Therefore, we can use this proportion to estimate the number of blackberry pies in the next sample of 20 pies:

Number of blackberry pies = 0.2 x 20

Number of blackberry pies = 4

Therefore, we can expect that 4 of the next 20 pies sold will be blackberry pies, based on the proportion of blackberry pies in the recent sample of 15 pies.

To learn more on Ratios click:

https://brainly.com/question/13419413

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NEED HELP QUIKLY PLEASEEEEE

Malachi has a list of the estimated costs for each semester to attend a university. What is the total estimated cost to attend college for six years?
ITEM: Tuition and fees:$5,650 Room and bored:$3,500 Book and supplies$1,250 personal expenses:$1,100

Answers

Answer:

138,000

Step-by-step explanation:

Add up expenses per SEMESTER

5650+3500+1250+1100=11,500

2 semesters in one year so double Semester amount

11,500x2=23,000

Multiply annual expense by 6 years

23,000x6=138,000

Please help
In order for you to carry a bag on the plane, it must t inside the Carry-on Baggage Check Box.
The Carry-on Baggage Check Box has dimensions of approximately 22" x 14" x 9". Your leather bag has a
height of 18 inches, a depth of 12 inches, and a width of 8 inches. Your canvas bag has a height of
18 inches, a depth of 15 inches, and a width of 10 inches.


1. What is the volume of the Carry-On Baggage Check Box?

2. What is the volume of the leather bag?

3. What is the volume of the canvas bag?

4. Which bag will denitely t into the Check Box? Explain.

Answers

Step-by-step explanation:

guessing

volume is always unit cubed

so in this case inches cubed or in^3

so multiply all 3 numbers

carry on is 22×14x9= 2772 in^3

leather is 18×12×8 = 1728 in^3

canvas is 18×15×10 = 2700 in^3 but the depth in ge's canvas 15" in larger than the carry on checklist

so

the leather will definitely fit

a mealworm crawled 2.1 meters in 6 minutes. At that rate, how many meters did the mealworm crawl in 1 minute

Answers

Answer:

the mealworm would've crawled 0.35 meters in one minute

Step-by-step explanation:

Ok, 2.1 meters in 6 minutes, how long did it travel in 1 minute?

to get 6 minutes to 1 minute, we need to divide 6 by 6 to get to 1.

we need to divide 2.1 by 6

2.1 / 6 = 0.35

good luck my friend!

-cheesetoasty

Can someone helppp me

Answers

Step-by-step explanation:

To find the Circumference of a triangle you use the formula C= 2(pi)r

in both of the problems you have the radius(r) and you plug the #'s in and solve

(pi)= 3.14...

#1.

2(pi)14.5

28(pi)

C= 87.92

#2.

2(pi)9.5

19(pi)

C= 56.66

i'll mark you brainliest for correct answer<3

Answers

Answer:

x=23/3 and y=-7/3

Step-by-step explanation:

So it would be (23/3,-7/3)

I think that the answer would be -14,-15. Hope this helps:)

Help me please and yank you

Answers

Answer:

The answer is b

Step-by-step explanation:

Lin opened a lemonade stand during the summer. She

noticed that she sold more lemonade on warmer days.

For each day she sold lemonade, she plotted the point

(t,c), where t represents high temperature and c

represents cups of lemonade sold.

b. A computer program found that the line c= 2t - 89

is a good fit for the data. Use this equation to predict

how many cups of lemonade Lin might sell on a day

when the high temperature is 74 degrees.

c. the high temp this Sunday is expected to be 5 degrees warmer that the high temp this Saturday. using the line c = 2t - 89 how many more cups of lemonade should lin expect to sell on Sunday than Saturday? explain or show your reasoning

Answers

Answer:

59 cups ;

10 cups

Step-by-step explanation:

Given that he fitted model :

c = 2t - 89

Where, c = cups of lemonade sold ; t = high temperature

On a day when high temperature is 74 degrees ; cups of lemonade sold

Hence,

c = 2t - 89

c = 2(74) - 89

c = 148 - 89

c = 59 cups

Sunday is expected to be 5 degree warmer than on Saturday :

The number of cups sold on Sunday using the fitted model should be :

Difference in temperature between Saturday and Sunday multiplied by the slope value

Slope value from the model = 2

Temperature difference = 5

Difference in Number of cups :

2 * 5 = 10 cups

Number of lemonade sold on Sunday will be 10 cups more than that sold on Saturday

Answer: 59 cups

Step-by-step explanation:

its 59 cause yea

Solve the equation.
-X +8 + 3x =X-6
Ο χ= -18
Ο χ=-14
Ο Χ=2
Ο Χ=4

Answers

Answer X=-14 explanation: it’s the right one

What is the measure of ∠I? Explain. (1 point)

Answers

Answer:

112.5°

Step-by-step explanation:

its the same as G, but I need to know if you have any measurements?

f=67.5 e=75  h=105

180-67.5= 112.5

since G and I are interior opposite angles then they are the same. So I equals 112.5  


There were 23 votes in the class
Election. Melika received 5 votes more
Than her opponent. If mequals Melika's
Votes, which expression shows her
Opponent's votes?
A) M + 5
B) M - 23
C) 23 - m
D) 23 - (
m5)

Answers

Answer:

check my explanation

Step-by-step explanation:

the answer is option A.

I think

Hi I’m inno,help me with my maths question here :D

Answers

Answer:

1. 3 1/5

2. 1/4 1/5 1/6 1/7 1/8

3. (a) 32/49 (b) 7/16

4. 11/16

5.(i) 20/35 (ii) 16/28

6. 3/4 is bigger than 2/5 because if you convert then 3/4=15/20 and 2/5=8/20

hope this helps

have a good day :)

Step-by-step explanation:

In 2008, the minimum wage was $8 per hour. Now it is $13. By what percent did the price change?

PLS HELP!!! :(

Answers

Answer:

62.5%

Step-by-step explanation:

13-8=5

5/8 × 100=62.5

At a particular time of a day, a-7-m high flagstaff casts a shadow which is 8.2m long. What is the height the building which cast a shadow 20.5m in length that the same moment

Answers

Answer:

17.5m

Step-by-step explanation:

We solve using the formula

Height /Shadow

Height of flag staff = 7m

Shadow of flag staff = 8.2 m

Height of the building = x

Shadow of the building = 20.5

= 7/8.2 = x/20.5

Cross Multiply

8.2x = 7 × 20.5

x = 7 × 20.5/8.2

x = 143.5 / 8.2

x = 17.5m

The height of the building is 17.5 m

So like I need help............please?

Answers

Maybe 7 i am not sure

Which word describes the slope of the line?
positive
negative
zero
undefined

Answers

Answer:

zero

Step-by-step explanation:

Answer:

zero

Step-by-step explanation:

if the line were to be vertical then it would be undefined

positive if the line went diagonally with the line going to the top right

negative if it went from top left to bottom left  

I need your help, please answer!!

Answers

Answer:

includes cluster lienier includes oulier

Step-by-step explanation:

:)

Please help with this word problem!

Answers

Answer:

a)

x = (158-112) / 1x

or  158-112 / x

b)  112+ 23 /158-23 = x

or if you want x to be the same value as  the first part then you could write

112+x / 158-x = 135/135

or revise as an equality

23 ≤ 112 < 158

112  + 23 = 158

112 + x = 158

     

Step-by-step explanation:

Tailwind speed

x = 158-112 / 2

x = 46/2

x = 23 knots

Speed

x = 112 + 23 / 158-23

x = 135 / 135 m/h = same speed as stated in question.

7. What is the image of p for a dilation with center (0,0) and a scale factor of 2.5?

A (-2.5, 5)
B (2.5, -5)
C (2, 2.5)
D (-5, -2.5)

Answers

Answer:

A (-2.5, 5) Might Not Be Right

Step-by-step explanation:

Other Questions
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