Tomfoolery
Tomfoolery Tomfoolery
  • 15-04-2015
  • Mathematics
Answered

If f(x)=x^2+3 and g(x)= -x-1 find the value of:
1. (g+f)(2)

2. (f/g)(1)

3. (g-f)(6)

Answer :

AyaZ
AyaZ AyaZ
  • 15-04-2015
[tex] f(x)=x^2+3 \\ g(x)= -x-1 \\ 1. (g+f)(2)=g(2)+f(2)=(-x-1)+ (x^{2} +3)= x^{2} -x+2= (2)^{2} -(2)+2=4 \\ 2. (f/g)(1)=\frac{f(1)}{g(1)}= \frac{x^2+3}{-x-1} = \frac{(1)^2+3}{-(1)-1} = \frac{4}{-2} =-2[/tex]
[tex]3. (g-f)(6) =g(6)-f(6)=(-x-1)-( x^{2} +3)=- x^{2} -x-4 \\ =- (6)^{2} -(6)-4=-46[/tex]


Answer Link

Other Questions

A box if cereal has a volume of 384 cubic inches If width of the box is 4 inches and the length is 8 inches what is the height of the box
what is the number rule for 18250 18500 19000 20000
A source that is written or created by a person who experienced an event personally is called a A secondary source B credible source C biased source D primary s
The equation 19080 12y can be used to find the entry fee per contestant y in dollars for entering a contest What is the value of y y
jessie received the following scores on her math test this year 4565708085100 suppose the teacher removes the lowest and highest scores 65708085 what are the in
How might European interest in exploration have increased as a result of the Crusades
a plant cell is 000001267 meter wideHow is this number written in scientific notation
Simplify the ratio 368 to 128
write a number decreased by 7 is at most 13
is it day all over the world the same timethen nightall over the world at the same time