<span>We prove first the direct implication. Assume n is even. Then n = 2k for some integer k. Then 7n + 4 = 14k + 4 = 2(7k + 2), which is even. For the converse, which is “if 7n + 4 is
even, then n is even”, we use a proof by contrapositive. The contrapositive is: “if n is not even (that is, odd), then 7n + 4 is not even (that is, odd) If n is odd, then n = 2k + 1, for some integer k. Then 7n + 4 = 14k + 11 = 2(7k + 5) + 1, which is odd.</span>
There are two degrees, one variable and one number.
Answer:
2.15 times or 215%
Step-by-step explanation:
V(Luxor) = (646)² · 350/3
V(Tower) = 290 x 125 x 622
V(Luxor) ÷ V(Tower) = 2.15
About 390 km because you drive 130 km per hour so 130 times 3 is 390
Person born on March 4, 1993.
Today's Date : August 26, 2017.
Your age : 2017 - 1993 = 24.
You are 24 years old.
