Answer: P(X<6) = 0.3085 or 30.85%
Step-by-step explanation: Determine, first, z-score:
x is a random variable for time a student takes to find a spot, in this case, x=6:
z = -0.5
Using z-score table, find z-score:
P(X<6) = P(z< -0.5)
P(X<6) = 0.3085
<u>Probability of finding a parking spot in less than 6 minutes is approximately 30.85%.</u>
eighteen is equal to the product of a number <u>9</u> and 9
Answer:
k=16
Step-by-step explanation:
To solve this, we can isolate k.
40+k=56.
We can do this by subracting 40 from both sides.
40+k-40=k
56-40=16
k=16
19/2
If you don’t want an improper fraction then nothing further can be done so the answer would stay the same (8 3/2)
Answer:
C
Step-by-step explanation:
To evaluate or simplify expressions with exponents, we use exponent rules.
- An exponent is only a short cut for multiplication. It simplifies how we write the expression.
- When we multiply terms with the same bases, we add exponents.
- When we divide terms with the same bases, we subtract exponents.
- When we have a base to the exponent of 0, it is 1.
- A negative exponent creates a fraction.
- When we raise an exponent to an exponent, we multiply exponents.
- When we have exponents with parenthesis, we apply it to everything in the parenthesis.
We will use these rules to simplify.
We separate like terms and simplify. Answer choice C.