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liraira [26]
3 years ago
8

What is f(3) for: f(x)=x2-x+5 f(3)=

Mathematics
1 answer:
USPshnik [31]3 years ago
6 0

Answer:

Ilan lahat Ang kabuuang bilang ng mga nakalarawang bagay

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Given the function f(x) = 4(2)x, Section A is from x = 1 to x = 2 and Section B is from x = 3 to x = 4.
Dmitry [639]

Answer:

Step-by-step explanation:

I'm sure you want your functions to appear as perfectly formed as possible so that others can help you.  f(x) = 4(2)x should be written with the " ^ " sign to denote exponentation:  f(x) = 4(2)^x

                                                                                      f(b) - f(a)

The formula for "average rate of change" is a.r.c. = --------------

                                                                                           b - a

                                    change in function value

This is equivalent to  ---------------------------------------

                                            change in x value

For Section A:  x changes from 1 to 2 and the function changes from 4(2)^1 to  4(2)^2:  8 to 16.  Thus, "change in function value" is 8 for a 1-unit change in x from 1 to 2.  Thus, in this Section, the a.r.c. is:

                 8

               ------ = 8 units    (Section A)

                  1

Section B:  x changes from 3 to 4, a net change of 1 unit:  f(x) changes from

4(2)^3 to 4(2)^4, or 32 to 256, a net change of 224 units.  Thus, the a.r.c. is

        224 units

      ----------------- = 224 units (Section B)

            1 unit

The a.r.c for Section B is 28 times greater than the a.r.c. for Section A.

This change in outcome is so great because the function f(x) is an exponential function; as x increases in unit steps, the function increases much faster (we say "exponentially").

7 0
3 years ago
It’s simple I swear!!! what is the square root of 25 times the square root of 9
goldenfox [79]

Answer:

15

Step-by-step explanation:

1st multiply the numbers: 25 × 9 = 225

2nd factor the number: 225 = √15^2

3rd apply radical rule: √15^2 = 15

Hope I helped :)

6 0
3 years ago
Read 2 more answers
Let Us Cell U charges $0.15/minute for long distance calls. Cell for Less charges $10.50/hour plus an additional $0.10/minute fo
docker41 [41]
Let Us Call <span>better</span>

translate 5 hours and 15 min into all min to find the total for us cell u. 5*60=300, so 315 minutes. So then multiply .15 by 315 and you get 47.25$. 

<span>Now do Call for us. so first multiply 5 by 10.50. you get 52.50$.</span>
4 0
3 years ago
"If A, then B" is the form of a
photoshop1234 [79]

Answer:

Step-by-step explanation:

If A then B is a conditional statement.

8 0
3 years ago
Whats the scale factor brainist
OleMash [197]

Answer:

?

Step-by-step explanation:

there is no scale factor (nothing to use)

thanks for the points though

have a blessed day :^)

3 0
3 years ago
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