Answer:
23
Step-by-step explanation:
f(x)=4-x²
g(x)=6x
g(x)-f(x)=6x-(4-x²)
g(x)-f(x)=6x-4+x²
so, when (g-f)(3), it means that x=3
.:(g-f)(3)=6(3)-4+(3)²
= 18 - 4 +9
=14+9
=23
i cant describe but i put y=1/x+3 -4 on the graph hope this helps
Answer:
2.meters
Step-by-step explanation:
Lenght of ladder = 4 m
θ = 30°
To obtain h;
Using Pythagoras rule :
Sinθ = opposite / hypotenus
Hypotenus = 4 ; opposite = h
Sin 30 = h / 4
0.5 = h / 4
h = 0.5 * 4
h = 2 m
Hence, distance between th efoot of ladder and the base of the wall is 2 m
Hope this helps with the answer to your question ;)
Step-by-step explanation:
x^2+(x+9)^2=90
x^2+(x+9)^2-90=0
x^2+x^2+9^2+2*x*9-90=0
x^2+x^2+81+18x-90=0
2x^2+18x-9=0