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
AlladinOne [14]
3 years ago
10

if a ball is thrown into the air with a velocity of 40 ft s its height in feet after t seconds is given by s(t)=40t-16t2 find th

e average velocity for the ball during the time[1,2]
Mathematics
1 answer:
dalvyx [7]3 years ago
4 0

Answer with Step-by-step explanation:

We are given that a ball is thrown into the air with velocity

v=40ft/s

Height  after t seconds is given by

s(t)=40t-16t^2

We have to find the average velocity for the ball during the time [1,2].

We know that average velocity=\frac{ds}{dt}

Average velocity=v=\frac{d(40t-16t^2)}{dt}=40-32t

Substitute t=1 then we get

Average velocity=40-32(1)=40-32=8 m/s

Substitute t=2 then

Average velocity=40-32(2)=40-64

Average velocity[/tex]=-24 m/s[/tex]

You might be interested in
Marcy wants $205 in her bank account. If she has $85 now and adds $10 per week, how many weeks will it take her to reach her goa
DIA [1.3K]

Answer:

^^1 week and 5 days

Explanation:

If she has $85 now, and gains $10 per week, by the next week and 5 days, she should have her goal of $205. Hope it helps!

5 0
3 years ago
Find the equation for a polynomial f(x) that satisfies the following:
denis-greek [22]

Answer:

f(x) = 1/2(4 - x)(x - 1)(x - 2)

Step-by-step explanation:

Considering zero's and a coefficient, the function is:

f(x) = a(x - 4)(x - 1)(x - 2)

Considering y-intercept:

f(0) = a(0 - 4)(0 - 1)(0 - 2)

4 = a(-4)(-1)(-2)

4 = -8a

a = -1/2

So the function is:

f(x) = -1/2(x - 4)(x - 1)(x - 2) = 1/2(4 - x)(x - 1)(x - 2)

3 0
2 years ago
What is:<br> m% of n?<br><br> PLEASE HELP ME
bija089 [108]

Answer:

<h3>m% of n</h3><h3>m/100 . n</h3>

<h3>mn/100</h3>

Step-by-step explanation:

<h3>I hope it helps ❤❤</h3>
8 0
2 years ago
What unit of time or volume is 1 equals 2?
Ugo [173]
What exactly are you asking?
5 0
3 years ago
The cost c, for manufacturing x flags is given by c=x? -24x +39. Find the number of flags manufactured if the cost is $120.
IRINA_888 [86]

9514 1404 393

Answer:

  27

Step-by-step explanation:

You want to find x when c = 120.

  120 = x^2 -24x +39

  x^2 -24x -81 = 0 . . . . . . subtract 120 to put in standard form

  (x -27)(x +3) = 0 . . . . .  .factor it

Solutions are ...

  x = 27, x = -3 . . . . . values of x that make the factors zero

The number of flags manufactured for a cost of $120 is 27 flags.

8 0
3 years ago
Other questions:
  • 28lbs is what % of 58​
    7·1 answer
  • What are the next 2 words in the pattern? half dollar, quarter, dime...
    13·1 answer
  • A local sorority sold hot dogs and bratwursts at the spring fling picnics. The first day they sold 8 dozen hot dogs and 13 dozen
    12·1 answer
  • 82.24 = -8.48 + 4x<br> Need help
    13·2 answers
  • What are the different types of triangles ?
    12·2 answers
  • A 2X2 square is centered at the origin. It is dilated by a factor of 3. What are coordinates of the vertices of the square?
    6·1 answer
  • I need to find the unit rate ! please help it’s hard
    10·2 answers
  • Find the second derivative of the function P(t) =(2t+4)/(t+1)
    8·1 answer
  • Liam went to the zoo with his parents and a ticket for the zoo cost's him $5.3. It costs an adult $10.70. How much would it cost
    9·2 answers
  • A boat to robben island holds 254 passengers.How many boats would be needed for 2 700 passengers?Assume that one boat can only t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!