Answer:
16/20
Step-by-step explanation:
Since this is a right triangle
sin theta = opp side / hypotenuse
sin theta = 16/20
Answer:
a d c
Step-by-step explanation:
Answer:4.5y
Step-by-step explanation: you have to multiply 15 times 0.3 and u get 4.5y
Answer:
15.19 m/s
Step-by-step explanation:
, where is the final velocity, is the initial velocity, a is the constant gravitational acceleration 9.8 m/s^2, and t is the time (seconds).
Since the ball is dropped off the bridge, its initial velocity is 0:
We can plug in 9.8 m/s^2 into a and 1.55 s into t:
= 15.19 m/s
All of the trigonometric functions of an angle θ can be constructed geometrically in terms of a unit circle centered at O. Given that:
Sine function
being
Cosine function
being
We will demonstrate the identity above. First of all, we need to square each equation, so:
Adding these two equations:
But as shown in the figure, using Pythagorean theorem
is always equal to 1, then:
The relation to right triangles is that:
<span>The hypotenuse is always equal to 1
</span>The opposite side is equal to
The adjacent side is equal to