Answer:
Step-by-step explanation:
Let's see how well I can explain this.  is the same as a 30 degree angle which is in quadrant 1. If you picture the unit circle, right in the center of it is the origin. If you draw a straight line from 30 degrees and through the center (the origin), you will automatically "connect" with the reference angle of 30 (this is true for ALL angles on the unit circle). This puts us in quadrant 3. In quadrant 3, x is negative and so is y. So the terminal point of the reference angle for 30 degrees has the same exact values, but both of them are negative (again, because both x and y are negative in quadrant 3). I can't see your choices but the one you want looks like this:
 is the same as a 30 degree angle which is in quadrant 1. If you picture the unit circle, right in the center of it is the origin. If you draw a straight line from 30 degrees and through the center (the origin), you will automatically "connect" with the reference angle of 30 (this is true for ALL angles on the unit circle). This puts us in quadrant 3. In quadrant 3, x is negative and so is y. So the terminal point of the reference angle for 30 degrees has the same exact values, but both of them are negative (again, because both x and y are negative in quadrant 3). I can't see your choices but the one you want looks like this:

 
        
             
        
        
        
The Original length of each side of square was 14.25 inches.
Step-by-step explanation:
Perimeter of a square is given by:
Perimeter = 4 * side
Let x be the original length of each side of square
So
decreasing 2 inch will mean

Perimeter of square after reducing 2 inches from each side

So, 
The Original length of each side of square was 14.25 inches.
Keywords: Perimeter, square
Learn more about perimeter at:
#LearnwithBrainly
 
        
             
        
        
        
Answer:
267.9 feet^3
Step-by-step explanation:
V = 4/3πr^3
4/3 * 3.14 * 4^3 = 267.946666
 
        
             
        
        
        
Answer:
Last week, Chen bought  812  gallons of gas at $2.30 per gallon. This week, he bought  4310  gallons of gas at $2.70 per gallon.
What was his total cost?
Enter your answer in the box.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
it should be 21 if I did this right.
Step-by-step explanation:
you multiply the width times the length (6 × 7) =42 then 882 divided by 42 to get 21