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gizmo_the_mogwai [7]
3 years ago
11

Jason remembers nine digits of a ten digit phone number. He remembers that the last digit is an even number. If he guesses that

last digit, what is the probability that he dials the correct number?
Mathematics
1 answer:
gulaghasi [49]3 years ago
7 0
He already knows 9 so that's out of the way. Now we have to figure out the last digit. What could it be? 0,1,2,3,4,5,6,7,8,9, or 0. The number of possibilities is the denominator and the number of times he tries is the numerator.
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Pepsi [2]

Answer:

f(g(-64)) = -190

Step-by-step explanation:

The functions are not well written.

Let us assume;

f(x) = x+1

g(x) = 3x+1

f(g(x)) = f(3x+1)

Replace x with 3x+1 in f(x)

f(g(x)) = (3x+1) + 1

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f(g(-64)) = 3(-64) + 2

f(g(-64)) = -192+2

f(g(-64)) = -190

<em>Note that the functions are assumed but same method can be employed when calculating composite functions</em>

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What's the value of x when f(x)=58
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