The costs of the two courier services are shown in the graph below.
What must the package weigh for the costs of the two courier services to be the same?
A.
8
B.
10
C.
14
D.
12
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perfect square?
A. 2-12
B. 3-8
C. 4-6
Answer:
C. 4-6
Step-by-step explanation:
4 is the perfect square because when you do 2 x 2 you get 4. None of the other numbers are a perfect square.
Let us say you must pay someone ten dollars a month. This is the same as being paid negative ten dollars a month. Ten months ago (in negative ten months) you were 100 dollars richer *. (-10)x(-10)=100
Hello from MrBillDoesMath!
Answer: D
In a right (angle) triangle with sides a,b, c, the Pythagorean that gives us that
a^2 + b^2 = c^2. Let go through the 4 cases presented in the problem>
A) Does 7^2 + 9^2 = 11 ^2. That is, does 49 + 81 = 121 ? Nope so these sides do not form a right triangle.
B) Does 10^2 + 15^2 = 20^2. That is, does 100 + 225 = 400 ? Nope so these sides do not form a right triangle
C) Does 12^2 + 18^2 = 22^2. That is, does 144 + 324 = 484 ? Nope, so these sides do not form a right triangle.
D) Does 8^2 + 15^2 = 17^2 ? That is, does 64 + 225 = 289. YES, so these sides can form a right triangle.
Regards, MrB.