Answer:
A. 20.5
Step-by-step explanation:
We can use the Pythagorean theorem to solve this equation for the missing side length, X.
a^2 + b^2 = c^2
We have a and b, we just need c, the hypotenuse.
14^2 + 15^2 = c^2
196 + 225 = c^2
421 = c^2
Now, we will square both sides:
The answer is about 20.5
Answer: 0.5507
Step-by-step explanation:
Given : The waiting time, in hours, between successive speeders spotted by a radar unit is a continuous random variable X with a cumulative distribution function

Since , the waiting time is in hours , then we can write 12 minutes as
hour i.e.0.2 hour.
Now, the probability of waiting fewer than 12 minutes between successive speeders is given by :-

Hence, the required probability = 0.5507
Answer:
27 + 36 = 63
A. (9 + 3)(9 + 4) = 12 × 13 = 156
B. 9(3 + 4) = 9 × 7 = 63
C. 9 + (3 × 4) = 9 + 12 = 21
D. (9 × 3)(9 × 4) = 27 + 36 = 63
Option B and D
Step-by-step explanation:
a-b
a=1/4
b= -2,15 -215/100 semplification -43/20
1/4-(-43/20)
1/4+43/20 minimum comune multiple
5+43/20=
48/20=12/5