The total number of parking spaces in a parking garage is calculated by adding the area of the lower level given by 22x2, the ar
ea of the upper level given by 20x2, and a compact car section given by 12x for a total of 414 parking spaces. Which equation could be used to solve for the number of compact car parking spaces?
A) 22x2 − 20 x2 − 12x = 414
B) 22x2 − 20 x2 + 12x = 414
C) 22x2 + 20 x2 − 12x = 414
D) 22x2 + 20 x2 + 12x = 414
A) 22x2 − 20 x2 − 12x = 414
B) 22x2 − 20 x2 + 12x = 414
C) 22x2 + 20 x2 − 12x = 414
D) 22x2 + 20 x2 + 12x = 414
2 answers:
You might be interested in
Answer:
4.39% theoretical probability of this happening
Step-by-step explanation:
For each coin, there are only two possible outcomes. Either it lands on heads, or it lands on tails. The probability of a coin landing on heads is independent of other coins. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
Theoretically, a fair coin
Equally as likely to land on heads or tails, so
10 coins:
This means that
What is the theoretical probability of this happening?
This is P(X = 2).
4.39% theoretical probability of this happening