1.)Which of the following statements is(are) true for all positive integers?
1) 7n-2n is divisible by 5
2) n2+2n is divisible by 2
a. first statement is true
b. second statement is true
c. none are true
d. both are true
1) 7n-2n is divisible by 5
2) n2+2n is divisible by 2
a. first statement is true
b. second statement is true
c. none are true
d. both are true
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1) 7n-2n = 5n which is divisible by 5
2) n2+2n = 4n which is divisible by 2
so your answer shoud be d.
(I'm assuming you mean n2 = 2n, but if you are trying to say n2 = n^2 {n squared} then your answer would be a. because n^2 + 2n is not divisible by 2)
2) n2+2n = 4n which is divisible by 2
so your answer shoud be d.
(I'm assuming you mean n2 = 2n, but if you are trying to say n2 = n^2 {n squared} then your answer would be a. because n^2 + 2n is not divisible by 2)