i belive a might be 6 or 9
1. Given the information below, can we prove AABC = ADEF? If yes, which postulate or
1 answer:
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Answer:
A. 7
B. -3
C. 8
D. 13
E. 5a+17
F. + 8a + 20
Step-by-step explanation:
A. f(1) = 5*1 +2, which equals 7
B. f(-1)= 5(-1)+2 which equals -3
C. g(-3)= (-3)^2+ 2(-3)+ 5 = 9- 6+ 5 = 8.
D. g(2)= (2)^2+ 2(2)+ 5= 4+ 4+ 5= 13.
E. f(a+3)= 5(a+3)+2 = 5a+ 15+ 2= 5a+ 17.
F. g(a+3)= (a+3)^2+ 2(a+3)+ 5= + 6a+ 9+ 2a+ 6+ 5=
+ 8a+ 20.
Question:
Diane knows a phone call to a friend costs .25 for the first three minutes and .10 for each additional minute. Let y be the cost of a call that lasts x minutes. Write the slope and an equation relating x and y.
Answer:
Slope = 0.10 or
Equation relating x and y is y = 0.10x- 0.05
Step-by-step explanation:
Given:
Cost for first three minutes = 0.25 cents
Cost for each additional minute = 0.10 cents
To Find:
The slope and an equation relating x and y = ?
Solution:
Let y be the cost of a call that lasts x minutes
Then,
y = 0.25 + 0.10(x-3)
y = 0.25 + 0.10x- 0.30
y = 0.10x- 0.05-------------------(1)
In the equation
y = mx +b------------------------------(2)
m is the slope
Comparing eq(1) and(2)]
m =0.10 or