By the way your X is my C. The Pythagorean theorem is a^2+b^2=c^2. A is 12, and b is 16, you would first plug them in. 12^2+16^2=c^2. So then you square them. You would then get 144+256=c^2. So now you add and get 400=c^2. Now find the square root of both sides to get just c. The square root of 400 is 20 and the square root of c^2 is just c. So that means 20=c or in your case x=20.
A. You divide 1 (infront of x) by 12 to get 12. You divide -6 by 12 to get -2 for the y intercept.
Number the tables as follows:
1 2
3 4
Eliminate 3 and 4 immediately, because for x = 2 the y values are wrong (3 and 1).
In tables 1 and 2, the input (1) produces the correct output (-1).
So we have to determine which table agrees 100% with the system of equations given.
Comparing tables 1 and 2, row by row, we see that their contents are the same EXCEPT for the first rows. So focus on determing which of those 2 rows displays values that satisfy both given equations.
First I looked at y=2x-5, and subst. -1 for x. I got -7, which is correct in table 1 but not in table 2 (where the value would be -13).
Thus, table 1 correct represents the solution of the system of equations.
Answer:
d = 2r
Step-by-step explanation:
diameter is two times the radius.
Answer:
D(72)
Step-by-step explanation:
to find this do 40 + 40 to get 200 percent of the original year when subtract 20 percent of 40 to get 72
