Solve and Check.
2007-10-24 11:18:48 · 5 answers · asked by blessed 1 in Science & Mathematics ➔ Mathematics
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2007-10-24 11:19:28 · update #1
7² -7 / 7+7
42/14
3
r(7) = 3
2007-10-24 11:22:08 · answer #1 · answered by David F 5 · 0⤊ 0⤋
If you mean (b^2 - 7) / (b+7), then r(7) is
(7^2 - 7) / (7+7)
You can simplify it from there.
2007-10-24 18:22:59 · answer #2 · answered by Anonymous · 0⤊ 0⤋
r(7) = (49-7)/(7+7) = 42/14 = 3
2007-10-24 18:23:19 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
The notation is not good in your question. I assume you mean
r(b)=((b^2)-7)/b+7
If this is the question then r(7) would be
((7^2)-7)/7+7
=(49-7)/14
=42/14
=3
Hope this helps.
2007-10-24 18:25:20 · answer #4 · answered by Stef W 2 · 0⤊ 0⤋
is it (b^2) - 7 or
b^(2-7)
?
2007-10-24 18:22:42 · answer #5 · answered by Anonymous · 0⤊ 0⤋