4b+1 equivalent to -2(b+4)+3
Answer:
30
Step-by-step explanation:
40
x 0.75
-----------
= 30
Answer: x - 777 = 0
Step-by-step explanation
x = 777
Move the contrast to the left
x - 777 = 777 -777
Eliminate the opposites
Answer:
x ≈ 8.66
Step-by-step explanation:
Using the sine ratio in the right triangle
sin60° =
= 
Multiply both sides by 10
10 × sin60° = x, thus
x ≈ 8.66 ( to 2 dec. places )