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Wittaler [7]
3 years ago
8

How can you be sure you've used the properties of operations correctly to form an expression that is equivalent to the original

one?​
Mathematics
1 answer:
oee [108]3 years ago
8 0
Im not sure about this one
You might be interested in
Simplify (-x^2 – 28x + 7) + (-7x^2 + 14x + 8).
Anon25 [30]

Add numbers with the same amount of variables

-x^2 + (-7x^2) = -8x^2

– 28x (+ 14x )= -14x

7 (+ 8) = 15

-18x² - 14x + 15 is your answer

hope this helps

6 0
3 years ago
Given a graph for the transformation of f(x) in the format g(x) = f(x) + k, determine the k value. two parabolas open up with f
IgorLugansk [536]

Answer:

5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
18=3(1+12 x)-5(10x+11)
madreJ [45]
18=3+36x-50x-55

18=3-14x-55

18=-14x-52

70=-14x

x=-5
6 0
3 years ago
What is the inverse of the function f(x) = 8x+1
Yanka [14]

Answer:

f⁻¹(x) = (x - 1)/8

Or

f⁻¹(x) = 1/8 x - 1/8

Step-by-step explanation:

To find the inverse of a function, switch the "x" and "y" variables, then isolate "y".

Remember <u>"f(x)" is the same thing as "y"</u>. Change from function notation to "y".

f(x) = 8x + 1

y = 8x + 1        

<u>Switch the "x" and "y" variables</u>

x = 8y + 1

<u>Isolate "y"</u>. Move the "y" variable to the left for standard formatting

8y + 1 = x            

8y + 1 - 1 = x - 1               Subtract 1 from both sides

8y = x - 1

\frac{8y}{8}=\frac{x-1}{8}        Divide both sides by 8 and simplify

y=\frac{x-1}{8}                  Inverse equation

y=\frac{1}{8}x-\frac{1}{8}             Slope-intercept form

<u>Use function notation</u>, change "y"

f^{-1}(x)=\frac{x-1}{8}                      Simplified

f^{-1}(x)=\frac{1}{8}x-\frac{1}{8}                   Slope-intercept form

6 0
3 years ago
The music for Nadia’s dance routine last for exactly 4 minutes. When Nadia dances her routine, she starts with her music and fin
natima [27]
4 x 60 = 240 seconds

\frac{12}{60} /  \frac{12}{12} =  \frac{1}{5} of a minute not dancing.

4 \times 5 = 20 - 1 = 19\frac{19}{20} \times  \frac{5}{5} =  \frac{95}{100}

95% of the time dancing
4 0
3 years ago
Read 2 more answers
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