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DIA [1.3K]
3 years ago
13

Which of the following functions represents a cell phone bill if there is a monthly charge of 20 dollars plus 6 cents for each m

inute of use? f( x) = 20.06 x f( x) = 20 + 0.06 x f( x) = 20 + 6 x
Mathematics
1 answer:
pychu [463]3 years ago
3 0

Answer:

f(x)=20+0.06x

Step-by-step explanation:

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Answer:

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5 0
3 years ago
Given the triangle that has a base of five less than triple the height. The height is 2x+6.
Deffense [45]

Answer:

<h3>          A = 0.5(2x+6)(6x+13) = 6x² + 49x + 78</h3>

Step-by-step explanation:

H = 2x+6          - the hight

3H = 3(2x+6)      - triple the hight

3H-5 = 3(2x+6) - 5    -  five less than triple the height

Area of triangle:  A = 0.5BH

B = 3(2x+6)-5 = 6x + 18 - 5 = 6x + 13

H = 2x+6

So:

    A = 0.5(2x+6)(6x+13) = (x+6)(6x+13) = 6x² + 13x + 36x + 78

    A = 6x² + 49x + 78

5 0
3 years ago
Why is scientific notation used?
scoray [572]
The answer is the last one; to express very large or small numbers.
We use it so we can show big or very small numbers in an easier way.
6 0
3 years ago
Read 2 more answers
Dane says that the answer to the problem 4 to the 6th power times 4 to the 3th power is 16 to the 9th power. What was his mistak
lesya [120]

Step-by-step explanation:

his mistake was that he didnt follow the rules of the order of operations and he multiplied 4 by 4 and just added the third power and the 6th power getting the wrong answer

                        hope this helps:) good luck

8 0
3 years ago
What is the difference?
slega [8]

Answer:

<h3>The answer is option D.</h3>

Step-by-step explanation:

First we must first find the LCM

The LCM of x² + 3x + 2 and (x + 2)(x + 1 ) is

x² + 3x + 2

So we have

\frac{x}{ {x}^{2} + 3x + 2 }  -  \frac{1}{(x + 2)(x + 1)}  \\  \\  =  \frac{x - 1}{ {x}^{2} + 3x + 2 }

Hope this helps you

3 0
3 years ago
Read 2 more answers
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