Answer:

Step-by-step explanation:
The reference angle is an acute angle that angle in standard position makes with the positive x-axis.
The given angle in radians is

This angle is already acute and hence it is itself a reference angle.
The reference angle of any angle in the first quadrant is the same angle.
The answer is : 5.29411764706
The answer when rounded: 5.29 or 5.3
I found the answer by simply dividing 45/8.5 - Remember that per means division!
3x+5y=16 is linear equation........
Answer:
25 can.
Step-by-step explanation:
Here is the complete question: You are making juice from concentrate. The directions on the packaging say to mix 1 can of juice with 3 cans of water to make orange juice. How many 12 fluid ounces cans of the concentrate are required to prepare 200 6-ounce servings of orange juice?
Given: Ratio to make juice with concentrate:water is 1:3.
As required we need to prepare 200 6 ounce serving of Orange juice.
∴ 
Let there be x ounce of concentrate and 3x ounce of water to make 1200 ounce of orange juice.
Now, 
∴ x= 300 ounce
Next, lets find out how many cans of 12 ounce is required.

∴ 25 cans is required to make 1200 ounce of orange juice.
The circumference follows the formula
C= 2 (pi)R
R is the radius which is half the diameter when we put this into the equation we get
C = 2 (pi)(4.5)
C=28.274334