Answer:
8 feet
Step-by-step explanation:
Ladder = hypotenuse
bottom of ladder to tree = leg
x, 6, 10
Clear 3-4-5 triangle so,
x=8
amplitude of y=a sin x
amplitude=a
Here y=-4sin 2x
amplitude=-4
8
640/80=8
8*80=640
D : One Real Root
Isolate "4x" by subtracting 7 from both sides.
So we get
4x = -7
Then we divide each side by 4 to get -7/4
x = -7/4 so there is only one real root.
