Check the picture below.
make sure your calculator is in Degree mode.
Answer:
x=5
Step-by-step explanation:
Answer:

Step-by-step explanation:

We will start by using the quadratic formula.

We will simplify that and get:

So our answers would be:

Answer:
9 feet
Step-by-step explanation:
The height of the ball in feet is given by the polynomial:

where t is the time in seconds.
After 3 seconds, t = 3:

The height of the ball after 3 seconds is 9 feet.
Answer:
23.6 ft
Step-by-step explanation:
Sketch a right triangle representing this situation. The length of the hypotenuse is 26 ft and the angle of elevation from ground to top of ladder is 65°. The "opposite side" is the reach of the ladder, which we'll call x.
Then:
opp
- sin 65° = ----------
- 26 ft
or (26 ft)(sin 65°) = opp side = height off the ground of top of ladder.
Evaluating this, we get:
(26 ft)(0.906) = 23.56 ft, or, rounded off, 23.6 ft
The ladder reaches 23.6 ft up the side of the building.