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
Serggg [28]
3 years ago
7

Please help and explain!! I really don't get this

Mathematics
1 answer:
const2013 [10]3 years ago
6 0
Average rate of change means find the slope of the secant line. So if there is a function f(x) and you want to find the average R.O.C over the interval [a,b], it would be (f(b)-f(a))/(b-a)

1. (f(3)-f(1))/(3-1)= (0-(-2))/2= 1, so D.

2. Same concept; (8-4)/(3-1)=2, so A.

3. Again, (39-(-1))/5= 8, B.
You might be interested in
Write the equation in standard form.<br><br> 3x−9=7y
Ket [755]
In standard form the answer will be if you go by (Ax+by=c )then I must say it's 3x-7y=9
6 0
3 years ago
Type the missing number in this sequence: 1, 2, 4, 8, , 32
vodka [1.7K]

Answer:

1,2,4,8,"16",32

Step-by-step explanation:

we are times by 2 on each one

7 0
3 years ago
Read 2 more answers
Can someone help me?
Oxana [17]

Answer:

Step-by-step explanation:

To start calculating, we first need to make some proof.

Firstly, since AB = AC, we know that ΔABC is isosceles, which means that ∠ABC = ∠ACB.

Now, looking only to ΔBDE and ΔCDF, we can see that they are similar, because the two of its angles are congruent:

∠BED=∠CFD

∠DBE=∠DCF

To make it easier to visualize which are the corresponding vertexes, we can draw them like this:

And we need to remember that BC is 24, so:

BD+CD=24

Since the triangles are similar, their corresponding sides have constant ratio, which we can calculate from the corresponding sides DE and CF:

r=\frac{CF}{DE} =\frac{7.5}{4.5} =\frac{5}{3}

This ratio is the same for the other corresponding sides, so we can apply that for BD and CD:

r=\frac{CD}{BD} =\frac{5}{3}\\&#10; \frac{BD}{CD}=\frac{3}{5}  \\\\&#10;BD=\frac{3}{5} Cd

Thus, the measure of CF is approximately 13, alternative D.

3 0
3 years ago
The orice of a computer was decreasd by 10% to £504. What was the price before the decrease
liberstina [14]

Answer:

554

Step-by-step explanation:

add 504 plus 10% and you get 554.

3 0
3 years ago
I really need help with this please!!
Eddi Din [679]

6x {y}^{2}  = (3x)(2 {y}^{2} )

25 {a}^{3}  {b}^{2}  = (5 {a}^{2}  {b}^{2} )(5a)

6x + 6y + 6p =( 6)(x + y + p)

8 0
3 years ago
Other questions:
  • 3 × [ 2 3 × (15 ÷ 3)]
    5·2 answers
  • 80,000 scientific notation
    5·1 answer
  • What’s the midpoint of the line segment joining A and B<br><br> A(2,-5);B(6,1)
    6·1 answer
  • Form the union for the following sets m={} n={6,7,8,9,10}
    6·1 answer
  • Which of the following numbers are square numbers?
    14·1 answer
  • What is 443,219 rounded to the nearest ten thousand?
    11·2 answers
  • 2 and 3/8 minus 1/4 times 1/8
    12·1 answer
  • I need help please.!
    12·1 answer
  • Which point is NOT correctly placed on this number line?
    11·2 answers
  • 100 POINTS PLEASE HELP ME I BEG 100 POINTS
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!