Answer:

Step-by-step explanation:

Then you need to simplify:

The answer is b)
because 3t is like typing 3*t
Answer:
41
Step-by-step explanation:
We can obtain the area of a triangle where two sides and an included angle is given by saying; 1/2 ab sinθ
where a and b are the given sides of the triangle and θ is the included angle.
From the formula for the area of the triangle;
Area of a triangle = 1/2 ac sin B
Area of the triangle = 1/2 * 9 * 11 * sin 124
Area of the triangle = 49.5 * sin 124
Area of the triangle = 41
<ABC + <CBD = <ABD
substitute <ABD = 85 and <CBD = x
<ABC + x = 85
Answer:
20 and 3/7
Step-by-step explanation: