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3 years ago

Sarah paid a food bill of 13.74 with a $20 bill how many change was she owed

Mathematics

2 answers:

slamgirl [31]3 years ago

6 0

6.26 because 20 subtract 13.74= 6.26

andreev551 [17]3 years ago

5 0

$6.26 i took the test

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Step-by-step explanation:

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emmasim [6.3K]

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4 0

3 years ago

If f(x)=x^3−x, what is the average rate of change of f(x) over the interval [1, 5]? a)29.5 b)30 c)43 d)120

avanturin [10]

$\bf slope = m = \cfrac{rise}{run} \implies 
\cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby 
\begin{array}{llll}
average~rate\\
of~change
\end{array}\\\\
-------------------------------\\\\
f(x)= x^3-x \qquad 
\begin{cases}
x_1=1\\
x_2=5
\end{cases}\implies \cfrac{f(5)-f(1)}{5-1}
\\\\\\
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3 years ago