Answer:
31/100
Step-by-step explanation:
From the given table
Reading books percentage is 22
so Probability (reading books) = 
Surf the internet percentage is 9
Probability (surf the internet) =
the probability (reading books or surf the internet)= P(reading books) + P(surf the internet)
probability (reading or surf)= 
= 
Answer:
C
Step-by-step explanation:
it's an acute angle so it has to less than 90 and 71 just seems like it's too much
Answer:
45/r
Step-by-step explanation:
You're just doing 45 divided by r.
Multiplication by 10ⁿ → move decimal n places to the right.
Multiplication by 10⁻ⁿ → move decimal n places to the left.
For n ∈ N
Are those supposed to be exponents? When multiplying exponents you add them together
b^3 * b^1 * b^4 * b^2
3 + 1 + 4 + 2 = 10
Answer: b^10
