Their signs are positive. if you multiple a positive by a positive, you get a positive. but if you multiple a negative by a negative, you get a positive. if you multiply two of the same sign numbers, the product is always positive.
XZ=XY+YZ
JL=JK+KL
use the trigonometric values table or unit circle to calculate the expression
Answer:
65.4
Step-by-step explanation:
60*.09 = 5.4
60+5.4 = 65.4