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
frutty [35]
3 years ago
15

Find the average rate of change between f(-7) and f(-1) in the function f(x)=x^2+2x -8

Mathematics
1 answer:
Viktor [21]3 years ago
3 0

Solve the equation by replacing x with -7 and then -1.

Then subtract the two to find the difference and divide that by the difference between -7 and -1.

f(-7) = -7^2 + 2(-7) -8 = 49 -14 -8 = 27

f(-1) = -1^2 + 2(-1) -8 = 1 -2 - 8 = -9

Difference between 27 and -9 = -36

Difference between -1 and -7 = -6

Rate of change = -36 /-6 = 6

You might be interested in
H-9<1.3= What is the answer to this problem
mina [271]
The answer to your question is h < 10.3
Because if you add 9 to both sides (1.3+9) you'll get h <10.3
hope this helps. Peace out homie
6 0
3 years ago
The diagram shows a sector of a circle radius 11 cm.
nadya68 [22]

Answer:

Perimeter of sector is 47.93 cm which is greater than 47.5 cm

Step-by-step explanation:

Mathematically, the perimeter of a sector is length of the arc plus 2 radii

The length of the arc is;

theta/360 * 2 * pi * r

where theta is the angle subtended by the arc at the center of the circle

Thus, we have

135/360 * 2 * 22/7 * 11 = 25.93

Add 2 radii = 25.93 + 2(11) = 47.93 cm

This is greater than what we are asked to calculate and thus we have shown what we are asked to show

4 0
3 years ago
If you choose one student at random, what is the probability (±0.0001) that the student's score is between 20 and 30?
nordsb [41]
Z-score for 30 = (30 - 25) / 5.8 = 0.8621
z-score for 20 = (20 - 25) / 5.8 = -0.8621
:
Note find probabilities from z-tables
:
Probability ( 20 < X < 30 ) = 0.8051 - 0.1949 = 0.6102
5 0
3 years ago
List two ordered pairs on the graph of y = 3x + 2 <br> A. 2,7 , 3,9<br> B. 2,8 , 3,11
cricket20 [7]
The answer is b. 2,8 and 3,11
8=3(2)+2
8=6+2
8=8

11=3(3)+2
11=9+2
11=11
7 0
3 years ago
Find the value of x. Round to the nearest tenth. Help please!!!
jasenka [17]

Answer:

x=3

Step-by-step explanation:

Right triangle so you can use pythagorean theorem

a squared + b squared = c squared

b=x

14^2 + b^2= 17^2

14+b=17

b=3

8 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate (2 - 3)4(4) - 9 ÷ 3
    5·2 answers
  • Solve these equations <br> |x+1/2|= 3<br><br> |x-3|=5 6/7<br><br> |3x+7|=5
    5·1 answer
  • A certain arithmetic sequence has the following explicit formula for the nth term: an = 4 + (n - 1)(7) The same sequence has the
    15·2 answers
  • I need help ASAP I'm not sure if I'm right
    7·2 answers
  • The question below is fill-in-the-blank. Be sure that you follow the instructions since it is computer graded. Either fill in th
    6·1 answer
  • If the slope of a wheelchair ramp is 1/12 then what is the angle of inclination to the nearest tenth of a degree?
    14·1 answer
  • PLEASE HELP ANSWER ASAP!
    8·1 answer
  • Find the range of the following set of data.<br> 130, 110, 121, 141, 137, 136, 103, 144
    12·2 answers
  • In the equation, 5x + 3y = 30, I want to find the intercepts. Which would
    5·1 answer
  • Which transformations could be performed to show that
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!