Elimination is used when there is a common factor between the two equations. Substitution is used in cases where finding a common term just isn’t possible, or too complicated.
Answer:
c part is the answer of this question
For this case we have that by definition of trigonometric relations that, the sine of an angle is equal to the opposite leg to the angle on the hypotenuse. So:

Clearing x:

Rounding off we have to:

Answer:
Option D
Answer:
2.56
Step-by-step explanation:
To find out how many pages the printer prints per minute, you need to divide the amount of pages it printed with how long it printed.
So 23÷9
Which equals 2.55555555-
Round 2.5555555 to the nearest hundredth you get 2.56.