an object is launched at 4 ft./s from 88 foot tall platform the objects height H in feet after T seconds is given by the equation H=-16T^2+8t+80 when does the object strike the ground

Answers

Answer 1

Answer:

1.5seconds

Step-by-step explanation:

When the ball hits the ground, the height is equal to zero. So find t when H=0:

H=16t²+8t+80

0=16t²+8t+80

0=2t²+t+10

0=(2t-3)(t+2)

So (2t-3)=0, or (t+2)=0

So t=1.5 or t=-2. Time can't be negative though, so we take our answer as 1.5seconds


Related Questions

Find the value of x.

Answers

answer: x=66
explanation: x+(x-20)+(2x+10)+(x+40)=360
5x+30=360
5x=330
x=66

find the value of each variable

Answers

Answer:

Step-by-step explanation:

12.)

x = 18

y = 9√3

14.)

x = 16/√2

y = 16/√2

16.)

x = 19

y = 19

At Captain's Video Emporium, video club members can play PS5 games for $5 per night. The club also charges a $25.00 membership fee. Slope = __5 per night___________ Y-intercept = _____________ Equation _____________

Answers

Answer:

It's $499, unless you don't care about having a disc drive, then it's $399. That simplicity was by design, said Sony ...

Does anyone know the answer to this one ???


What number divided by −3 gives 12 as the result

Answers

Answer: -36

Step-by-step explanation: a negative and a negative give a positive so -36/-3=12

(to check your answer you can also always just multiply the two numbers ex: 12 x -3= -36)

Factor the expression (x+4)^2-4y^5(x+4)+4y^10

Answers

if you factor this,
it is (x+4-2y^5)^2

Can someone help me find the area?

Answers

Answer:

56

Step-by-step explanation:

4 x 5 = 20

20/2 = 10

4 x 5 = 20

20/2 = 10

6 x 6 = 36

20 + 36 = 56

______________________

Give Me Brainllest

Answer:

56

Step-by-step explanation:

PLEASEE HELP
EXTRA POINTS
BRAINLIEST

Painter Pete uses a ladder to reach a second story window on the house he is
painting. The bottom of the window is 20 feet above the ground. The foot of the
ladder 15 feet from the house. How long is the ladder?

Answers

Answer:

25 feet

Step-by-step explanation:

20^2 + 15^2 = 625

square root of 625 is 25

Answer:

that's a big ladder

35ft

Step-by-step explanation:

find the surface area of the cube with 7 inches sides

Answers

Answer:

294

Step-by-step explanation:

surface area of a cube = 6* a^2

6 * 7^2

= 6* 49

= 294

PLZ ANSWER QUIKCLY
Which expression is equivalent to -12(3x-3/4)

-36x-8

-36x + 8

-36x-9

-36x +9

Answers

Answer:

Last one, -36x+9.

Explanation: You need to multiply negative times positive which is negative. But look at the last one -12×-3/4 equals positive 36/4 which equals 9.

200 cm = m 4pijwedougfehdgijhskjghskdghksdjgh

Answers

Answer:

b

Step-by-step explanation:

E-24sbsnsnsebebehdttt

How many minutes are there between 15 minutes past 10 and 25 minutes to 11am?​

Answers

Answer:

20 minutes

Step-by-step explanation:

15 minutes past 10 is 10:15

25 minutes to 11 am is 10:35

(60-25=35)

35-15=20

PLEASE HELP ME... I WILL GIVE BRAINLIEST TO CORRECT PERSON. ALSO THIS IS FOR EDGE

Answers

Answer:

C

Step-by-step explanation:

The equation for the dotted line is y=(-1/2)x, so therefore y<(-1/2)x must be the area under the dotted line.

The equation for the solid line is y=2x+3, so therefore y≥2x+3 must be the area above the solid line.

The section that is both under the dotted line and above the solid line is C.

No Links Please!!!

A swimming team from East High School is participating in a swim meet with, with three swimmers competing in the
butterfly stroke race.
There are 15 total swimmers competing in the butterfly stroke race.
What is the probability that two East High School swimmers finish first and second in the race?
Enter your answer as a simplified fraction.

Answers

Answer:

1/35

Step-by-step explanation:

P= 6 *13! / 15! = 1/35

The probability of two east high school swimmers to come first and second is 1/35.

How to calculate probability?

First, let us calculate the number of desired outcomes:

The first position has 3 possibilities and 2nd position has 2 possibilities and 3rd position has 13 possibilities (leaving people of 1st and 2nd position).

Total=2.3.13

Now, calculate the total outcome:

1st position has 15 possibilities, 2nd has 14 and 3rd has 13.

Total=15.14.13

Probability=desired outcome/total outcome

                 =2.3.13/15.14.13

                 =1/35

Therefore, probability of the given situation is 1/35.

To know more about probability refer:

https://brainly.com/question/13604758

#SPJ2

Select the interval where g is positive.
Choose 1 answer:
A
1 < x < 2
B
3 < 3 < 4
4 < x < 5

Answers

Answer: it’s a

Step-by-step explanation:

Hi help no link pls and ty

Answers

Answer:

Unit

Step-by-step explanation:

For his long distance phone service, Tom pays an 8 monthly fee plus 6 cents per minute. Last month, Tom's long distance bill was $16.34. For how many minutes was Tom billed?

Answers

He was billed for 139 minutes

8 + 0.06x = 16.34
0.06x = 8.34
x = 139

Please lmk if you have any questions

Does this represent a function? Why or why not *explain*

Answers

Yes, everyone has their own input and output

what is 1/3 +4 x 3

If you answer correctly i will give 100 points and Brainiest :)

Answers

12 1/3 or 12.33.

EXPLANATION:
because of order of operations or PEMDAS, multiplication comes first.

4 x 3 = 12

so now we have 1/3 + 12.

So 12 1/3.

Which in decimal form is 12.33

2) Shannon and Lisa start running at the same time
in the same direction
3
Shannon can run 1 - miles in 1/2 of an hour.
4
2
Lisa can run 2 1/2 miles in of an hour.
3
They both continue running at a constant rate.
WIN
How far apart will they be after 3/4 of an hour?

Answers

Answer:

0.1875 miles (or 3/16 of a mile)

Step-by-step explanation:

In order to make the math easier for calculating the distance, the values have to be calculated to whole hours.

1.75*2 = 3.5

2.5 * 3 = 7.5, 7.5/2 = 3.75

Now, I divide the whole hours into quarters

3.5/4 = 0.875

3.75/4 = 0.9375

Multiply both values by 3 to get the distance after 3/4 of an hour

0.875 = 2.625

0.9375 = 2.8125

remove the smaller value from the larger value

2.8125 - 2.625 = 0.1875

I might have used a more over-complicated method than what you might have been taught, but it should be just as efficient. Good luck with your assignment!

Mcm de 12 21 63
Encontrar el resultado

Answers

Answer:

Lo mcm es 252.

Step-by-step explanation:

El objetivo de esta queston es encontrar el mínimo multiplo comun de estes tres numeros.

Para eso, factoramos estes numeros en valores primos, e despues multiplicamos estos factores.

12 21 63

12 - 21 - 63|2

6 - 21 - 63|2

3 - 21 - 63|3

1 - 7 - 21|3

1 - 7 - 7|7

1 - 1 - 1

2*2*3*3*7 = 252

Lo mcm es 252.

what is x equal to? please help

Answers

Answer:

147°

Step-by-step explanation:

x+33=180

x=180-33=147°

5). Find the surface area.
3.6 yd
7 yd
3 yd
2 yd

Answers

15.6 . hope this helps

Please help fast!!! Thank you:)

Answers

Answer:

Step-by-step explanation:

1. 1.325 x 10^7 = 13,250,000

2. 1.02 x 10^-6 = 0.00000102

Answer:

1 one is correct

3 one is correct

5 one is correct

Step-by-step explanation:

find the total surface area of the following cone. leave your answer in terms of pi.

Answers

Answer:

90pi

Step-by-step explanation:

SA = pi r l +B

we know the radius is 5

We need to find the slant height using the Pythagorean theorem

a^2+b^2 = c^2

5^2+12^2 = l^2

25+144= l^2

169 = l^2

Taking the square root of each side

sqrt(169) = sqrt(l^2)

13 = l

B is the area of the base

B = pi r^2 = pi (5)^2 = 25 pi

SA = pi r l +B  = pi (5)*13 + 25pi

                       =65pi +25pi = 90pi

Answer:

90 pi

Step-by-step explanation:

Just in case the other answer was confusing. Just put it in, and it marked it right. 90 is the answer

SA= 90

A:12 B:11 C:15 D:16. I need help

Answers

Answer:

B

Step-by-step explanation:

B is the only option between 0, 10 and 12, 1

I this it is d your welcome

Sorry for the blurryness. Please answer correctly and I guarantee I will mark you brainliest :)

Answers

Answer:

42

Step-by-step explanation:

37-79=42

Solve the following inequality.
4x - 3(x + 2) - 5 < 0
A. x < -2
B. XX-2
C. x < 11
OD. X > 11

Answers

Answer:

The right answer is C

Step-by-step explanation:

4x-3x-6-5<0

x-11<0

x<11

use an inequality symbol to compare -3 + 7 ____-10 -2​

Answers

Answer:

>

Step-by-step explanation:

-3 + 7 = 4

-10 - 2 = -12

4 > -12

Which two shapes are equivalent fractions?

Answers

Answer:

B. 1 and 3

Step-by-step explanation:

On a coordinate plane, line A is the y-axis, line d is the x-axis, point C is at (0, 0), and point B is a quadrant.
Use the drop-down menus to identify the parts of the coordinate plane.


Line A is the .
Region B is .
Point C is the .
Line D is the .

Answers

Answer:

Line A is the  

✔ y-axis

Region B is  

✔ a quadrant

Point C is the  

✔ origin

Line D is the  

✔ x-axis

Step-by-step explanation: Did it on Edgen

Answer:

its line d

Step-by-step explanation:

I did the test

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