CAN SOMEBODY HELP MEEEE I AM SO BAD AT MATH 5 to the power for 7 times 15 minus 8 minus 5
2 answers:
Answer:
Step-by-step explanation:
Original equation:
Remember the PEMDAS rule --> in this case the exponents are first.
= 5*5*5*5*5*5*5 = 78,125
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The next step to this problem is multiplication because you are starting from left to right and its after the exponents.
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The last 2 steps is to subtract (from left to right)
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Hope this helps!!!
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All three series converge, so the answer is D.
The common ratios for each sequence are (I) -1/9, (II) -1/10, and (III) -1/3.
Consider a geometric sequence with the first term <em>a</em> and common ratio |<em>r</em>| < 1. Then the <em>n</em>-th partial sum (the sum of the first <em>n</em> terms) of the sequence is
Multiply both sides by <em>r</em> :
Subtract the latter sum from the first, which eliminates all but the first and last terms:
Solve for :
Then as gets arbitrarily large, the term will converge to 0, leaving us with
So the given series converge to
(I) -243/(1 + 1/9) = -2187/10
(II) -1.1/(1 + 1/10) = -1
(III) 27/(1 + 1/3) = 18