Answer:
(f+g)(x)=5x+2x²-7x+4+3x-7 = 2x²+x-3
Step-by-step explanation:
✒ 
Plugging in the value "a = 7" and "b = -2" in the above expression, we have
✒ 
✒ 
Answer:
132ft
Step-by-step explanation:
add all the sides
47+47+19+19=132
Answer:
pairs of numbers is 3,-3
Step-by-step explanation:
The computation is shown below:
Let us assume a and b are the pairs of the numbers whose difference is 6
i.e.
a - b = 6
a = 6 + b
So
f = ab
f = (6 + b)b is minimum
Now
d ÷ db (6+ b)b = 0
(6+ b) + b = 0
2b = -6
b = -3
Now
a = 6 + b
= 3
So pairs of numbers is 3,-3
21.7 so you would probably round down too 21 because you can't have 0.7 of a person
