For solving a question like this where you have to find a function for a particular value, just put the given number in place of the unknown variable i.e. x in this case. Lets solve this function now.
We are to solve for f(9), so we will put 9 in place of x:
f(x) = 72+4x
f(9) = 72 + 4(9)
f(9) = 72 + 36
f(9)= 108
so, your function for the value 9 is 108.
Answer:
Irrational
Step-by-step explanation:
A rational number is a number that can be express as the ratio of two integers. A number that cannot be expressed that way is irrational.
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<span>x + 8 + 7 =7
x + 8 = 0
x = -8
</span>-------------------
Answer:
5 gallons and 3 quarts
Step-by-step explanation:
There are 4 quarts in a gallon so 23/4=5 gallons and 3 quarts