Answer:
x = 54
Step-by-step explanation:
These angles are complementary because they add up to 90:
x - 7 + 43 = 90
x + 36 = 90
x = 90 - 36
x = 54
Answer:
x = 10 , 45 degrees.
Step-by-step explanation:
This seems a tricky one .
I guess we can use sin A + sin B = 2 sin (A+B)/2 cos (A - B) / 2
so sin 5x + sin x = 2 sin 3x cos 2x so our equation becomes
2 sin 3x cos 2x - cos 2x = 0
cos 2x ( 2 sin 3x - 1) = 0
so 2 sin 3x = 1
sin 3x = 1/2
giving 3x = 30 degrees and x = 10 degrees
or cos 2x = 0
so 2x = 90
giving x = 45 degrees.
Answer:
2x-9
remainder is 3
Step-by-step explanation:
Check the image
Answer:
196π
Step-by-step explanation:
cylinder: π * (7/2)^2 * 13
cone: 1/3 π (7/2)^2 * (22-13)
The triangle DEF is not similar to triangle ABC because it doesn't have two equal sides (as it has triangle ABC)
Let's prove triangle GHI:
10.5/7=1.5=4.5/3, then triangle GHI is similar to triangle ABC
Answer: Option B. GHI