1. Write the number in exponential form with a base of 8.
2. Reduce the index of the radical and exponent with 2.
3. Your answer is 8
I hope this helps☺
Answer:
Step-by-step explanation:
Given that:
Length (l) = 13 cm
Width (w) = 8 cm
Perimeter of the rectangle = 2(l + w) units
P = 2(13 + 8)
P = 2 (21)
P = 42
Using the compound interest formula,
572.86=287,50(1+i)^8
(1+i)^8=572.86/287.50=1.992557
1+i=(1.992557)^(1/8)=1.0899996
=>
i=1.0899996-1=9%
Note: This problem can also be solved in the head using the rule of 72.
Since after 8 years, the amount is roughly doubled, we can say that the interest rate is approximately 72/8=9%
Answer:
Irrational.
Step-by-step explanation:
The square root of 35 is not a perfect integer.
Answer:
step 3: he should have divided both sides by -7
