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AleksandrR [38]
3 years ago
13

The sum of three consecutive numbers is 123. what is the smallest of the three numbers

Mathematics
2 answers:
bixtya [17]3 years ago
7 0

Answer:

Smallest of the three = 40

Step-by-step explanation:

Consecutive means: x+x+1+x+2 = 123 set X as the smallest number.

x+x+x+1+2=123

3x+3=123

3x= 120

x=40

xxTIMURxx [149]3 years ago
3 0

Answer:

<em>39,41,43 is the consecutive, it adds to 123, 39 is the smallest one.</em>

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Because of a problem in the program, the timer in a video player did not begin counting until the video had been playing for sev
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Read 2 more answers
Which equation is the inverse of y = 9x2 - 4?
m_a_m_a [10]

Answer:

The inverse will be:

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Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

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y = 9x^{2} - 4

x = 9y' ^{2} - 4

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x + 4= 9y'^{2} - 4+4

9y'^{2} = x + 4

Second divide by 9

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Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

5 0
3 years ago
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