Cos 12 = sin (90 - 12) = sin 78
Answer:

Step-by-step explanation:
A standard die has six numbers (1 through 6). That means there is a 1/6 probability of rolling any one number. There is a 3/6 probability of rolling one of the selected numbers which simplifies to 1/2 or 0.50
Answer:
one angle is 150 degrees and the other is 30 degrees.
Step-by-step explanation:
please kindly check the attached file for explanation.
Answer:
A. 0.9510
B. 0.0480
C. 0.0490
D. No, I would not feel comfortable accepting the shipment if one item was found defective, because the probability is quite small to obtain 1 or more defective items.
So here, the rule "keep,change,switch" works great. so you keep the first fraction the same, switch the division to multiplication and then turn the second fraction upside down
so it looks like this:
-1 * -9= 9
7* 5= 35 = (9/35)
then
7* 9= 63 = (63/64)
8* 8= 64