Find the value of the variable. If your answer is not an integer, leave it in simplest radical form. A. 7
B.
C.
D.

7 sqrt(2)/2 =x

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp/ hyp

sin 45 = x/7

7 sin 45 =x

7 sqrt(2)/2 =x

Step-by-step explanation:

The triangle is a right triangle.

We can use trigonometric functions to solve the problem.

The opposite side to the angle 45 degrees is x and the hypotenuse of the triangle is 7.

Multiply both sides of the equation by 7.

Simplify the value.

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).