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
tresset_1 [31]
3 years ago
14

Let v(t)=t2−2tv(t)=t2−2t be the velocity, in feet per second, of an object at time tt, in seconds.

Mathematics
2 answers:
kirza4 [7]3 years ago
6 0
Thee function is given as:

<span>v(t)=t^2−2tv(t)=t^2−2t 

</span>(a) What is the initial velocity? 

Base from the function, the initial velocity would be zero.

(b) When does the object have a velocity of zero?

It would be during time zero. Also, at a time equal to two.
Anni [7]3 years ago
3 0

Answer:

v(0) =0

t=0,2

Step-by-step explanation:

Given that velocity in feet per second of an object  at time t in seconds is given by the quadratic equation

v(t) = t^2-2t

Initial velocity is the velocity at time 0.

Substitute t=0 in v(t)

a) Initial velocity = v(0) = 0^2-2(0)=0

b) Equate velocity function to 0 and solve for t.

v(t) = t^2-2t=0\\t(t-2)=0\\t=0,2

You might be interested in
Can somebody please help me with this pleaseee
Semmy [17]

Answer: -2, 2

Step-by-step explanation:

0 = 5x^2 -20

0 = 5(x^2 -4)

0 = 5(x - 2)(x + 2)

0 = x - 2

2 = x

0 = x + 2

-2 = x

6 0
2 years ago
What is 12/7 please help and i will be very happy
Anvisha [2.4K]

Answer:

12/7 is a improper fraction

Step-by-step explanation:

as a decimal it is 1.71428571429 and as a mixed number it is 1 5/7

6 0
3 years ago
Read 2 more answers
The Wind Mountain excavation site in New Mexico is an important archaeological location of the ancient Native American Anasazi c
timurjin [86]

Answer:

a) 28

b)

Class Limits  Class Boundaries   Midpoint    f      Rf         Cf

10 - 37            9.5-37.5                   23.5            7     0.096     7      

38 - 65           37.5-65.5                 51.5           25    0.342     32    

66 - 93           65.5-93.5                 79.5          26    0.356     58    

94 -  121        93.5-121.5                   107.5         9     0.123       67    

122 - 149      121.5-149.5                  135.5         5      0.068     72  

150 - 177       149.5-177.5                  163.5        0         0.0      72    

178 - 205       177.5-20.5                  191.5         1       0.014      73  

Total                                                                  73          1.0    

c)

The histogram is in attached file.

Step-by-step explanation:

a)

The width of class interval=range/desired number of classes

The width of class interval=(maximum-minimum)/7

The width of class interval=(200-10)/7

The width of class interval=190/7

The width of class interval=27.14=28 (rounded to next whole number)

Part(b) and part (c) is explained in attached word document.

Download docx
5 0
3 years ago
Subtract and add the group of fractions below. Make sure the answer is fully reduced.
yarga [219]

Answer:

19/20 that's simplified by the way... and if you want the decimal form it's 0.95

6 0
3 years ago
Read 2 more answers
Nancy's garden has the dimensions shown 4 1/2 yard<br><br> 3 3/4 yd . She need find the area
Marina86 [1]

Answer:

The area of Nancy's garden is 16\frac{7}{8}\ yd^{2}

Step-by-step explanation:

I assume that the Nancy's garden is a rectangle shape

To find the area first convert mixed number to an improper fraction

4\frac{1}{2}\ yd=\frac{4*2+1}{2}=\frac{9}{2}\ yd

3\frac{3}{4}\ yd=\frac{3*4+3}{4}=\frac{15}{4}\ yd

Therefore

The area is equal to

A=\frac{9}{2}*\frac{15}{4}=\frac{135}{8}\ yd^{2}

convert to mixed number

\frac{135}{8}\ yd^{2=\frac{128}{8}+\frac{7}{8}=16\frac{7}{8}\ yd^{2}

4 0
3 years ago
Other questions:
  • Please help me with these questions please I have 12 questions and will reward anyone who helps me with them all this is 11/12
    13·1 answer
  • If each stack of coins has the same height, which stack of coins has the greatest volume? A) the uniform stack B) the irregular
    6·2 answers
  • What is the slope-intercept form of the linear equation 4x + 2y = 24? Drag and drop the appropriate number, symbol, or variable
    7·1 answer
  • I need help<br>All of the following are rational except <br>-2/5<br>3.14159...<br>0.125<br>0<br>​
    6·1 answer
  • 65 POINTS PLS help
    10·2 answers
  • Measurement of a circle<br><br> (Giving brainliest to correct answer)
    12·1 answer
  • Dan has a coupon for $2.00 off 2 boxes of cereal
    10·2 answers
  • Specify a rectangle if the<br>a=18cm c=48cm <br>plsss helpp!!!!!​
    15·1 answer
  • Is this correct ? Or would the angle be considered an acute angle
    13·2 answers
  • A 36-foot guy wire is attached to a utility pole to provide support for the pole. The wire forms a 60° angle with the ground. Ho
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!