If f(x) = 22 + 1, what is f(x) when x = 3? O 1 O 7 13 O 19

Mathematics

1 answer:

Luda [366]3 years ago

4 0

Answer:

Step-by-step explanation: Sit on the couch and think about the answer while eating cheese puffs and watching reruns of Looney Tunes and then jot down the formula of:

IF f(x)= 22+1 THEN f(x) when x=3 is 7

The answers come so quickly when I ask my magic 8 Ball and I said is 7 the answer? It replied Most Likely so it would be B the correct answer!

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Step-by-step explanation:

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A motorboat takes 5 hours to travel 100mi going upstream. The return trip takes 2 hours going downstream. What is the rate of th

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$\bf \begin{array}{lccclll}
&distance&rate&time\\
&-----&-----&-----\\
upstream&100&b-c&5\\
downstream&100&b+c&2
\end{array}
\\\\\\
\begin{cases}
100=(b-c)5\\
\qquad \frac{100}{5}=b-c\\
\qquad 20=b-c\\
\qquad 20+c=\boxed{b}\\
100=(b+c)2\\
\qquad 50=b+c\\
\qquad 50=\boxed{20+c}+c
\end{cases}$

solve for "c", to see what's the current's speed

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