1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kramer
3 years ago
7

A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a func

tion of time t (in seconds) by the equation h = -16t2 + 56t. How much time does the ball take to return to the ground?
A) 1.75 seconds
B) 2.50 seconds
C) 2.75 seconds
D) 3.50 seconds
Mathematics
1 answer:
andrew11 [14]3 years ago
5 0

Answer:

  D)  3.50 seconds

Step-by-step explanation:

You are interested in the positive value of t such that h=0. Substituting 0 for h, we get ...

  0 = -16t^2 +56t

  0 = -16t(t -3.5) . . . . . factored form

The product is zero when the factors are zero. Here, the factor of interest is ...

  0 = t-3.5

  3.5 = t . . . . . add 3.5 to both sides

The ball takes 3.5 seconds to return to the ground.

You might be interested in
THIS IS FOR YOUR SAFETY, PLEASE READ! ⚠️ There is a Mickey Mouse profile that will dm you on any social platform do NOT open the
Dafna11 [192]

Answer:okkkk

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
X^2-4x-11=0 completing the square
yawa3891 [41]
<span>The answers are either:

x=<span>2+<span><span><span>√15</span><span> or </span></span>x</span></span></span>=<span>2−<span>√<span>15

Hope this helps!
</span></span></span>
5 0
3 years ago
Read 2 more answers
Can someone explain how to find the IQR for box plots?
never [62]
Go on the top right corner w the 3 dots
7 0
3 years ago
Read 2 more answers
Please help me dunduendjenbe!!! I beg u
Harman [31]

Answer:

y = 4/3x - 2, B is your answer

Step-by-step explanation:

Y intercept is the number next to slope(b).

The co efficient of x will be your slope so therefore the co efficient of x will be 4/3

y is always there because it will always be the dependent variable on the left side.

3 0
2 years ago
Read 2 more answers
A square garden has an area of 1,600 square feet. How long is each side of
kiruha [24]

Answer:

40

Step-by-step explanation:

why? because 40x40=1600

6 0
3 years ago
Other questions:
  • Use the graph to find the factorization of x^2 - 5x + 4
    7·1 answer
  • 5x^2+40x^2-100x FACTOR
    9·1 answer
  • Find measure of side AB round to nearest tenth
    6·1 answer
  • What is 2 7/12 - 5/12  ?   Express the answer in simplest form.
    13·2 answers
  • A toy company currently produces 950 toys per day. The company plans to increase the number of toys produced per day by 55 each
    14·1 answer
  • I need help with 35-38 please!!!
    7·1 answer
  • An interior designer charges $100 to visit a site, plus $55 to design each room. Identify a function that represents the total a
    10·1 answer
  • Is 8 a solution to 1/2 x + 9= 13 ?
    15·1 answer
  • A number x is less than 1/4
    6·1 answer
  • Are the following functions linear or nonlinear?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!