Complete the following proof.

Given: AB, CD are diameters

Prove: BD=CA

Given abcd ac=38 and ae=3x+4 find the value of x

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o