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Akimi4 [234]
2 years ago
7

Write an expression that can be used to multiply 6 × 198 mentally.

Mathematics
2 answers:
mixer [17]2 years ago
8 0

<em>Answer:</em>

<em>1188 </em>

<em />

<em>Step-by-step explanation:</em>

<em>assuming you meant 6x198 do a mental sum for 6x200 (1200) then subtract 6x2(12) to give you 1188.</em>

Mamont248 [21]2 years ago
5 0

Answer:

assuming you meant 6x198 do a mental sum for 6x200 (1200) then subtract 6x2(12)to give you 1188

Step-by-step explanation:

brainly.com/question/274291

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What is the domain of <br> f<br> g<br> (x)?<br> f(x)=x+5<br> g(x)=4x
Sunny_sXe [5.5K]

Answer:

f (7x-6)=28x-29

Step-by-step explanation:

f (7x-6)=28x-29

4 0
2 years ago
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
Find the equation of the linear function represented by the table below in slope intercept form.
grigory [225]

Answer:

y = -3x - 2

Step-by-step explanation:

slope (m) = (-8 - -5) / (2 - 1)   ... difference of y/difference of x

m = -3

y = mx + b

y = -3x + b

for (3,-11)    b = y + 3x = -11 + 3x3 = -2

equation: y = -3x - 2

5 0
3 years ago
Which expression is a factor of 3xy + 2x – 18y – 12?
aleksandr82 [10.1K]

x+6 is the right one


4 0
3 years ago
Help with the ones that aren’t answered plz
Delicious77 [7]

-12 - (-5) = -7

-13 - (-5) = -8

-20 - (-4) = -16

-22 - (-11) = -11

10 - (-12) = 22

-3 - 2 = -5

-4 - 6 = -10

-5 - 5 = -10

0 - 6 = -6

7 0
3 years ago
Read 2 more answers
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