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
Nastasia [14]
2 years ago
8

A particle travels along the x-axis such that its position at time t is given by the function x(t)= 2t^2+t. What is the average

speed of this particle over the interval 2 is less than or equal to t which is less than or equal to 10
A-4

B-200

C-32

D-25
Mathematics
1 answer:
Lapatulllka [165]2 years ago
8 0

Answer:

4: A

Step-by-step explanation:

Mathematically, the average speed over a particular range will be;

f’(b)-f’(a)/(a-b)

In this case; a = 2 and b = 10

So we have the following;

f’(x) = 4t + 1

f’(10) = 4(10) + 1 = 41

f’(2) = 4(2) + 1 = 9

So we have the average speed change as;

(41-9)/(10-2)

= 32/8 = 4

You might be interested in
A and B are complementary angles. If m A = (4x + 24) and m
Bogdan [553]

Answer: 26

Step-by-step explanation: Complementary angles are angles that add up to 90 degrees. So we use m<a+m<b=90 so let plug in

(4x+24)+ (3x-4)=90, then combine like with like.

7x+20=90

7x=70

x=10

Then let plug it in for angle B

(3(10)-4= 26

3 0
3 years ago
Read 2 more answers
The usual price of a sweatshirt is 18$, what is its sale price
german

Answer:

$19.08

Step-by-step explanation:

18 + 6% = (18 x 1.06) = 19.08

8 0
3 years ago
The width of a rectangle is 7x - 6 feet and the length is 3x + 7 feet. Find the perimeter of the rectangle.
aliina [53]

Answer:

P= 20x+2 ft

Step-by-step explanation:

________

I                I

I                I       3x + 7ft

________

7x - 6ft

P= (7x - 6 + 7x - 6) + (3x + 7 + 3x + 7)

 = (14x - 12) + (6x + 14)

 = 20x + 2 ft

8 0
2 years ago
What is the value of 3-(-2)?
777dan777 [17]

Answer:

5

Step-by-step explanation:

Do the multiplication first:  3 - (-2) becomes 3 + 2.

Thus,

3-(-2) = 5

8 0
3 years ago
Please help with 1, 2, and 3
Akimi4 [234]
Don’t know 1 but 2 is J or 3 because it’s y=mc+b and m=slope and parallel lines have the same slope and 3 is B or -4/5 because if you use the slope formula ( y2-y1/x2-x1) you get the slope (-4/5) and parallel lines have the same slope.
3 0
2 years ago
Other questions:
  • Which point represents the outlier <br> A. (2, 3)<br> B. (4, 5)<br> C. (3, 13)<br> D. (8, 9)
    5·1 answer
  • Amy purchased 17 pencils and 18 pens for a fund-raiser at school and spent $61.50. Jocelyn purchased 10 pencils and 21 pens and
    14·1 answer
  • At a carnival, for every 19 games there are 10 rides. What is the ratio of games to rides?
    13·2 answers
  • The probability that a biased coin will land on Heads is 0.43
    12·1 answer
  • if the radius of a circle is five centimeters, how long is the arc subtended by an angle measuring 60°
    14·1 answer
  • “At a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for 2 tacos and 3 small glasses of m
    13·1 answer
  • NEED ANSWER ASAP <br> MARKING BRAINLIEST
    12·2 answers
  • Find sin0, csc0 and cot0 where 0 is the angle shown in the figure. Give exact values, not decimal approximations? Thank you in a
    12·1 answer
  • Charlie went to Juarez, Mexico, on a shopping trip. He bought silver rings at $5 each
    14·1 answer
  • Factor each product-<br> 0.7√300<br> -0.125√192
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!