ali48
ali48
16-07-2017
Mathematics
contestada
F(x) =x^2+6x and g(x)=7-x find (f-g)(x) and (f-g)(9)
Respuesta :
Nick911
Nick911
16-07-2017
f(x)=x²+6x
g(x)=7-x
(f-g)(x) means that f(x)-g(x), so
f(x)-g(x)
=x²+6x-7+x
Combining like terms
x²+6x+x-7
=x²+7x-7, so (f-g)(x)=x²+7x-7
Next,
(f-g)(x)
=x²+7x-7
(f-g)(9)
=(9)²+7(9)-7
=81+63-7
=144-7
=137, so (f-g)(9)=137. Hope it help!
Answer Link
VER TODAS LAS RESPUESTAS ( 11+ )
Otras preguntas
Write an algebraic equation for the following problem and then solve it. A hospital received a shipment of 14-milligram doses of a medicine. Each 14-milligram p
Maya attended her town's annual Worm Charming Competition. Contestants are assigned to a square foot of land, where they have 30 minutes to "charm" worms to the
A. g(x) = -x B. g(x) = -x² C.g(x) = -|x| D. g(x) = -2*
May someone help? Kinda confused. If 10-3x=1 , what is x?
PLEASE HELP ME, I NEED THE HELP
4. Based on what you saw in the movie and what you obtained in the exercise, what sediment do you expect to find in this channel? 5. What type of stream channe
**ECONOMICS** In the economy represented by the graph, which set of economic measures is most likely present at point B in the business cycle? A. The steady gro
. If a = 1.323323332... and b = 0.101101110... and 1/ac-bc = 27, then what is the value of c?
SHOW ALL WORK PLEASE! Sarah has two similar regular pyramids with pentagon-shaped bases. The smaller has a scale factor of 2:3 when compared to the larger. Only
an office ceiling is 9 feet high file boxes are each 3/4 feet tall. what is the greatest number of these file boxes that can be stacked in the office? Show how
