Answer:
see explanation
Step-by-step explanation:
The error is in Step 1, by not adding 2 on the left side, that is
Given
7.7 = w - 2 ( add 2 to both sides )
7.7 + 2 = w - 2 + 2
9.7 = w
There's no picture. I could help if you provided an equation or a picture of one
Answer:
29.64
Step-by-step explanation:
First we multiply 0.3 with 22.8.This will give us 6.84 which is the 30% off.Now we add 22.80 and 6.84 and we will get our answer 29.64.
Step-by-step explanation:
Start by multiplying both sides by cosα:
1 + sinα + (cos²α)/(1+sinα) = 2
sinα + (cos²α)/(1+sinα) = 1
Now multiply both sides by 1+sinα:
sinα + sin²α + cos²α = 1 + sinα
sin²α + cos²α = 1 Q.E.D.
