3 years ago

Sophie has 5 pieces of string that are each 5 feet long. Cooper has 4 pieces of string that are each

Mathematics

1 answer:

Reil [10]3 years ago

5 0

Answer:

Sophie has 12 feet more

Step-by-step explanation:

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Please be quick! i need answer for each in the box, giving 15 points

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The solutions are $f(-2)=12, f(-1)=7, f(0)=2, f(1)=-3$ and $f(2)=-8$

Explanation:

To find the values of f(x), we need to substitute the values for x in the function $f(x)=2-5x$

For $x=-2$ ,

$\begin{aligned}f(x) &=2-5 x \\&=2-5(-2) \\&=2+10 \\&=12\end{aligned}$

Thus, $f(-2)=12$

For $x=-1$ ,

$\begin{aligned}f(-1) &=2-5(-1) \\&=2+5 \\&=7\end{aligned}$

Thus, $f(-1)=7$

For $x=0$ ,

$\begin{aligned}f(0) &=2-5(0) \\&=2+0 \\&=2\end{aligned}$

Thus, $f(0)=2$

For $x=1$ ,

$\begin{aligned}f(1) &=2-5(1) \\&=2-5 \\&=-3\end{aligned}$

Thus, $f(1)=-3$

For $x=2$ ,

$\begin{aligned}f(2) &=2-5(2) \\&=2-10 \\&=-8\end{aligned}$

Thus, $f(2)=-8$

Hence, the solutions are $f(-2)=12, f(-1)=7, f(0)=2, f(1)=-3$ and $f(2)=-8$

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