5/8
30/48 divided by 6/6 = 5/8
Answer:
1) 
2)
And for this case we have:

By the complement rule we can find the probability that the spinner land in a non black or red space:

And then the probability distribution would be:
Color Red Black N
Prob. 1/3 1/2 1/6
Step-by-step explanation:
For this case we have two possible outcomes for the spinner experiment:


In order to have a probability distribution we need to satisfy two conditions:
1) 
2)
And for this case we have:

By the complement rule we can find the probability that the spinner land in a non black or red space:

And then the probability distribution would be:
Color Red Black N
Prob. 1/3 1/2 1/6
Answer:
D) 20º
Step-by-step explanation:
if one angle is 70º, and the other is 90º, that means that the first two angles equal 160º. since all three interior angles of a triangle have to add up to 180º, the third angle must be 20º.
Answer:
C) 3/5
Step-by-step explanation:
Have you heard of this way to memorize the trig ratios?
SOH-CAH-TOA (Say it out loud so you remember it.)
It represents these ratios:
Sine = opposite side / hypotenuse
Cosine = adjacent side / hypotenuse
Tangent = opposite side / adjacent side
In this problem, cos C = adj / hyp = BC / AC = 24 / 40.
That simplifies to 3/5