Answer: 2*200-321+67=56-65? look at the picture
Step-by-step explanation: Hope this help :D
Answer:
0.43
Step-by-step explanation:
x = sin^-1(0.4)
x = 23.57
tan(23.57) = 0.436
Answer:

Step-by-step explanation:
Given

--- right angle
Required
Which of the options is true
In a triangle, we have:
--- angles in a triangle
Substitute 

Collect like terms


This implies that E and G are complementary angles.
For complementary angles, E and G;
and 
<em>Hence, (4) is true</em>