Answer:
x=4
Step-by-step explanation:
21x+6+90=180
First, we need to subtract the numbers.
21x=180-90-6
21x=84
Now, we need to find the value for 1x, so divide the whole equation by 21
84/21
21/21
x=4
Hope this helps!
Answer:
y ≈ 6.7
Step-by-step explanation:
Using the sine ratio in the right triangle
sin26.5° =
=
( multiply both sides by 15 )
15 × sin26.5° = y , then
y ≈ 6.7 ( to 1 dec. place )
Answer:
30 easy
Step-by-step explanation:
The answer is 60. Just multiply 20 × 3.