The probability is 0.1253.
This is binomial because 1) there are two outcomes (either do or do not use in class); 2) the events are independent of each other (the probability of one person using a phone in class does not affect the probability of another person doing this); and 3) there is a fixed number of trials (9).
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Answer:
x = the flat fee = $1.5
y = fee per each letter sent = $0.7
Step-by-step explanation:
Let
x = the flat fee
y = fee per each letter sent
The equations
x + 35y = 26 (1)
x + 18y = 14.10 (2)
Subtract (2) from (1) to eliminate x
35y - 18y = 26 - 14.10
17y = 11.9
y = 11.9/17
y = 0.7
Substitute y = 0.7 into (1)
x + 35y = 26 (1)
x + 35(0.7) = 26
x + 24.5 = 26
x = 26 - 24.5
x = 1.5
x = the flat fee = $1.5
y = fee per each letter sent = $0.7
Anthony has a square-shaped, wooden board. To build a door, he uses the board and cuts 3 feet off of its width. The new area of the wooden board is given by the expression below, where x represents the length in feet.
x(x-3)
Which statement best describes the term (x - 3)?
Answer:
it can be a the answer for this q