Y = 4
3x + 4x = 43
3(9) + 4x = 43
27 + 4x = 43
4x = 43-27
4x = 16
16/4 = x
4=x
x=4
Answer:
The answer is 5 years
Step-by-step explanation:
You must do 85 cm ÷ 17 cm to find how many years in which the cliff will erode 85 centimeters and the answer is 5.
Answer:
e) cos(90-x)
Step-by-step explanation:
sinx=cos(90-x)
For Perimeter you add all the sides of the figure and the total is your perimeter. For Area you multiply the length times the width.
