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
Westkost [7]
3 years ago
5

A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function

h = –16t2+ 36t + 9.
In how many seconds does the ball reach its maximum height? Round to the nearest hundredth if necessary.
What is the ball’s maximum height?
Mathematics
2 answers:
nirvana33 [79]3 years ago
7 0

Answer:

After 5 seconds (c)

Step-by-step explanation:

FinnZ [79.3K]3 years ago
6 0

Answer:

The ball reaches a height of 29.25 ft after 1.125 seconds

Step-by-step explanation:

The maximum height of a parabola can always be found by looking for the vertex. You can find the x value (or in this case the t value) of a vertex by using -b/2a in which a is the coefficient of x^2 and b is the coefficient of x.

-b/2a

-(36)/2(-16)

-36/-32

1.125 seconds

Now to find the height, we input that value in for t

h = -16t^2 + 36t + 9

h = -16(1.125)^2 + 26(1.125) + 9

29.25 feet

You might be interested in
Can someone simplify this, I just want to make sure that I’m doing what I’m doing right.
Harman [31]

Answer:

4

Step-by-step explanation:

you cant simplify a hole number

7 0
3 years ago
Which are the solutions of x2 = 10x + 1?
padilas [110]

Answer:

we have

Complete the square. Remember to balance the equation by adding the same constants to each side

Rewrite as perfect squares

Square Root both sides

substitute

therefore

the answer is

the solutions are

or

or

Click to let others know, how helpful is it

RStep-by-step explanation:

6 0
3 years ago
Help me please,,,,,,,, thanks
irakobra [83]

Answer:

87 scorpions do not live in Arizona

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Evaluate the function f(x)=4x-5 at the given values of the independent variable and simplify. A: f (-3) B: f (x+8) C: f (-x)
xz_007 [3.2K]
A: -17
B: 4x+27
C: -4x-5
3 0
3 years ago
Rohan bought a bicycle that cost $30.00 when it was new. If he eventually sold it for 10% of the original cost, how much was it
Evgesh-ka [11]

Answer:

$3.00

Step-by-step explanation:

in this case u would have to find 10% of $30

= 10×30

=300/100

=$3

8 0
2 years ago
Other questions:
  • The factory quality control department discovers that the conditional probability of making a manufacturing mistake in its preci
    15·1 answer
  • A metal cylinder can with an open top and closed bottom is to have volume 4 cubic feet. Approximate the dimensions that require
    7·1 answer
  • A ladder 25 feet long is leaning against a wall the bottom of the latter is 4 feet from the base of the wall how far up is the i
    13·2 answers
  • 3(7x-1)=4x+6 please answer me at least two or three people ​
    9·2 answers
  • I need help don’t understand
    13·2 answers
  • James invested $4,000 at 5% interest per year; how long will it take him to earn $200 in simple interest?
    13·2 answers
  • What is the value of h (-2) when h(2)<br> 3:2 +1?
    12·1 answer
  • 26. Use the diagram given below to answer the questions that follow. Diameter = 18cm (Use r = 3.14) a. Find the area of the circ
    11·1 answer
  • Using the digits 2, 4, and 6, write a number with a 4 in
    6·1 answer
  • A credit card company charges a late fee of 10% on all late payments. last month, jamal was charged a late fee. the total amount
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!