Simplify ( 3 + i ) ( 4 + 9i ) and write the answer in standard form.

a. 23 + 31i
b. 33 + 21i
c. 33 = 31i
d. 3 + 31i
e. 3 + 39i


d. 3 + 31i

Mathematics

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Find the extreme values of the function and where they occur.y = 

A. The minimum is 1 at x = 0. B. The maximum is 1 at x = 2. C. The maximum is 1 at x = -2. D. The minimum is 0 at x = 1.

Mathematics

Find the unknown length in the space figure.Find the distance d. Give an exact answer.

A. 7
B. 3
C. 7
D.

Mathematics

Simplify the expression.

a. 9 b. 18 c. 216 d. 729

Mathematics

Give a direct proof of the following angles


Proof: STATEMENTS REASONS
m?2 = m?4 ________________________

Mathematics