Answer: 72 = 2^3 * 3^2
72 is even so 2 is a factor ; 72/3 = 36
36 and 36/2 = 18 are also even so we have two more 2’s as prime factors. 18/2 = 9 = 3*3 hence we have two 3’s as prime factors
Therefor the prime factors of 72 are 2*2*2*3*3 or 2^3*3^2
The simple interest on x dollars at 5-percent annual rate for 2 year is $0.1x
<h3>Calculating simple interest</h3>
The formula for calculating the simple interest is expressed as:
SI = PRT
where
P is the principal = $x
R is the rate = 5%= 0.05
Time T = 2 years
Substitute
SI = x * 0.05 * 2
SI. = 0.1x
Hence the simple interest on x dollars at 5-percent annual rate for 2 year is $0.1x
Learn more on simple interest here: brainly.com/question/25793394
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Answer:
5 hours
Step-by-step explanation:
39 - 14 = 25
5 x 5 = 25
14 + 25 = 39
You can treat it as an arithmetic sequence, so multiply the average integer value by the number of integers:
(40+12)/2 × (40 -12 +1) = 26×29 =
754You can subtract the sum of integers 1–11 (66) from the sum of integers 1–40 (820) to get the sum of integers from 12–40: 820 - 66 =
754.
You can let a graphing calculator do it. (See attached.) This method takes perhaps the least amount of thought. It, too, gets a sum of
754.