9514 1404 393
Answer:
85 km/h
Step-by-step explanation:
Let s represent the speed of the slower car. Then the travel time is ...
time = distance/speed
2 = 360/(s +(s+10))
4s +20 = 360 . . . . . multiply by 2s+10
4s = 340 . . . . . . . . . subtract 20
s = 85 . . . . . . . . . . . divide by 4
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The rate of the slower car is 85 km/h.
Given the function f(x) and f(g), the composite result function f(g(x)) is 3x - 16.
<h3>What is the composite result function f(g(x))?</h3>
Given the functions in the question;
- f(x) = 3x + 5
- g(x) = x - 7
- f(g(x)) = ?
To determine f(g(x)), we set up the result of the function.
f(g(x)) = f( x - 7 )
f(x) = 3x + 5
We replace all occurrence of x with x-7 and simplify
f( x - 7 ) = 3( x - 7 ) + 5
f( x - 7 ) = 3x - 21 + 5
f( x - 7 ) = 3x - 16
Given the function f(x) and f(g), the composite result function f(g(x)) is 3x - 16.
Learn more about composite function here: brainly.com/question/20379727
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Answer:
the expression that is equivalent to 8+20 is 4(2+5)
the missing factor in the expression 30+12=O(5+2) is 6
Step-by-step explanation:
Using PEMDAS, we have to multiply the number on the outside by the numbers within the parentheses. 4 x 2 = 8, 4 x 5 = 20. 8 + 20 equals 28.