Find cos 2∅ if ∅ is in the first quadrant and tan∅ = 40/9.
cos2∅ = ?

Which of the greatest common gcf of 32 and 48 a 16 b 96 c 8 d 32

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Qrst is a parallelogram. determine the measure of ∠q pls