I think you divide 1/2 by -2/5 and then add that to -1/4....
Answer:
3 out of 18
i think
Step-by-step explanation:
Extraneous solutions, is answers that we get because of squaring both sides of the radical equation, but in reality, they are not going to be the solutions of the given equation.
(√(4x+41))²=(x+5)²
4x+41=x²+10x+25
x²+6x-16=0
(x-2)(x+8)=0
x1=2 , x2=-8,
And now we must to check them by substitution into initial equation
√(4x+41)=x+5
1) x=2, √(4*2+41)=2+5, √49=7, 7=7 true
2) x=-8, √(4*(-8)+41)=-8+5, √9 =-3 false,
so an extraneous solution x=-8
Answer:
25 ft
Step-by-step explanation:
The path of the golf ball is given by the equation.
The point on the ground where the ball will land on the ground is the point where .
is horizontal distance
So
So, the ball will land 25 ft away from the tee.
Graph made up for the given function f(x)=(1/2)^x