All categories

3 years ago

A ball is thrown into the air with an upward velocity of 80 feet per second. The function

Mathematics

2 answers:

Ghella [55]3 years ago

5 0

After 5 seconds, that is the answer.

klemol [59]3 years ago

5 0

Answer:

5 seconds

B is correct

Step-by-step explanation:

$h(t)=-16t^2+80t$

where, t is time in seconds, h is height of ball in feet

When ball at ground h must be 0.

Set h=0 and solve for t

$0=-16t^2+80t$

$-16t(t-5)=0$

$t=0,t-5=0$

$t=0,5$

Hence, The ball reach at ground in 5 seconds

You might be interested in

A group of artists is selling small prints to raise money for charity. They sell p prints, and make a profit of f(p) on the sale

MrRissso [65]

Answer:

Statement A is true.

Step-by-step explanation:

A. If the group sells 15 prints, they will lose $85.

B. If the group sells 12 prints, they will lose $204.

C. If the group sells 35 prints, they will make $935.

D. If the group sells 28 prints, they will lose $136.

f(p) = 17p - 340

p = prints

f(p) = profit

Let's check the statements to see which one is true.

A. 17.15 - 340 = - 85 OK!

B. 17.12 - 340 = -136 (false, they will lose $136)

C. 17.35 - 340 = 255 (false, they will make $255)

D. 17.28 - 340 = 136 (false, they will make $136)

3 0

3 years ago

Write the equation that describes the following variation. Don't forget "k"!

rosijanka [135]

Answer:

x=(k√x)/(w^2)(cube√z)

x varies directly with square root of y is:

x = k √y

And inversely with the square of w and cube root of s is:

/(w^2)(cube√z)

Now put those together:

x=(k√x)/(w^2)(cube√z)

The formula is:

x=ky/wz but add the specific info like square, roots, or etc

5 0

2 years ago

32. Which of the following is horizontal ellipse

maria [59]

Answer:

b. 16x² + 25y² = 1

Step-by-step explanation:

Only one of them has a < b in ax² + by² = c formula, making its graph horizontal

All the rest are vertical, see attached

6 0

3 years ago

A die is thrown . find the probability of (1) a multiple of 2 or 3

tangare [24]

Answer:

A die is thrown which means that it can land on either 1-6 on the die.So if you want to find the probability of the multiple of 2 or 3....we have multiplies of 2 in the die from 1-6 which is 2,4 and 6 if you count them they are just 3 numbers and since there is a probability of it to land on any of them it will be 3/6 which is 1/2 if yiu divide by 3 to it's lowest term....Then multiple of 3 is 3,and 6.which will be 2/6 which is 1/3 if u cut to its lowest term. Or in the question means addition sign in probability then it is 2 or 3 which is (1/2)+(1/3)=5/6.Thank you for the question

7 0

2 years ago

1/4 divided by 3 = ___

Yuki888 [10]

Answer:

$\frac{1}{4} \div 3 = \frac{\frac{1}{4} }{3} = \frac{1}{12}$

6 0

2 years ago

Read 2 more answers