Answer:
112.5 minutes
Step-by-step explanation:
30/2 = 15 miles
45/2 = 22.5 minutes
15 times 5 = 75 miles
22.5 times 5 = 112.5 minutes
Answer: P(100 ≤ x ≤ 130) = 0.43
Step-by-step explanation:
Since the scores are normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = scores
µ = mean score
σ = standard deviation
From the information given,
µ = 100
σ = 20
We want to find the probability that the scores is between 100 and 130. It is expressed as
P(100 ≤ x ≤ 130)
For x = 100,
z = (100 - 100)/20 = 0
Looking at the normal distribution table, the probability corresponding to the z score is 0.5
For x = 100,
z = (130 - 100)/20 = 1.5
Looking at the normal distribution table, the probability corresponding to the z score is 0.93
Therefore,
P(100 ≤ x ≤ 130) = 0.93 - 0.5 = 0.43
Answer:
60 degrees.
Step-by-step explanation:
Each one of the four (spaces) are 90 degrees.
So 90-30 is 60
Hope this helps
A in
in a class, the ratio of girls to boys is 2 : 3 .There are 12 boys in the class. How many girls are in the class?
Law of Sines
b/sin(B) = a/sin(A)
b/sin(48) = 50/sin(58)
b = sin(48)*(50/sin(58))
b = 43.8150164386619
b = 43.8
The answer is choice B) 43.8