Answer: -1/343
Step-by-step explanation:
-7(-7)^-4
First, re-write as positive exponents:
-7(-1/7^4)
Next, simplify:
-1/7^3 (you can simplify using exponent rules)
Simplify 7^3 :
7(7)(7)
49(7)
343.
Insert to original expression:
-1/343.
7 is 35% out of 20, when you divide 7 by 20, you get 0.35 which is 35%.
There are two such numbers.
One of them is 2 + 9.5 = 11.5.
The other one is 2 - 9.5 = -7.5.
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If we consider "9.5 units from 2" to be 9.5 units in the positive direction, then the appropriate choice is 11.5.
