PLEASE HELP I'LL GIVE OUT EXTRA POINTS TO THOSE WHO ANSWER CORRECTLY 2. Is this number in scientific notation? Why or why not? If not, write in the correct format.
0.34 x 108
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The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Someone answer this asap for the first five terms of a sequence are shown. 5, 11, 23, 47, 95, . . which recursive function defines the nth term in the sequence for n > 1? a. f(n) = f(n - 1) + 6 b) f(n) = f(n - 1) + 48 c) f(n) = 3 • f(n - 1) + 1 d) f(n) = 3 • f(n - 1) - 4