What are the rules for multiplying and dividing negative numbers?

if you have 2 of the same sign its positive. it you have two different signs its negitive

Step-by-step explanation:

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong