Tomfoolery
Tomfoolery Tomfoolery
  • 15-04-2015
  • Mathematics
contestada

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)

Respuesta :

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

Otras preguntas

A community has the following organisms in its food chain: deer, grass, mountain lions, and mushrooms. The roles they play (which are not in the correct order)
What is the area of this figure?
what led to the reduction in size of the modern day computer system?
How did world war 1 have militarism affect?
Which one of the following statements by a caregiver reflects an understanding that children communicate their feelings through behaviors A. "Look at the mess
Compare write <,>,=.
The following function represents the value of a house after x years: f(x) = 242,000(0.96)x What does 0.96 represent? (5 points) The present value of the house
The mean of four nunbers is 70. The mean increases to 80 when a fifth number is added. What is the fifth number.
There are 100 cm in 1 m and 1000 m in 1 km. You need a curtain for a window that is 156 cm wide If you wanted to convert the width to kilometers, what conversio
According to Newton’s second law of motion, an object accelerates in the same direction as the force applied to it. True False