Answer:
a. P=0.35
b. P=0.12
c. P=0.49
d. Cost: more than $249 per night.
Step-by-step explanation:
We assume a normal distribution with mean $204 and s.d of $55.
To calculate the probability we calculate the z-value for each case
a. What is the probability that a hotel room costs $225 or more

b. What is the probability that a hotel room costs less than $140

c. What is the probability that a hotel room costs between $200 and $300

d. What is the cost of the most expensive 20% of hotel rooms in New York City?
In this case, we have to estimate z' so thats P(z>z')=0.2. This value is z=0.841.
Then, the value of X should be:

Answer:
Step-by-step explanation:
sum of roots=-b/a=-5/2=-2.5
Answer:
x = -4 x = 3
Step-by-step explanation:
To find the x intercepts, set y =0
(x+4) (-x+3) =0
Using the zero product property
x+4 =0 -x+3 =0
x = -4 x = 3
Answer: 21
Explanation:
21 - 17 = 4
4 * 8 = 32
Therefore the number is 21
Answer:
4.5 ft³
Step-by-step explanation:
Volume = 1/2(LxWxH)
1/2( 1.5 x 2) * 3 = 1.5 x 3 = 4.5 ft ³
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