Answer:
a = 30°
Step-by-step explanation:
We need to find the value of a.
We know that, a straight line makes an angle of 180°.
In this case,
a+3a+2a = 180
6a = 180
a = 30°
So, the value of a is equal to 30°.
Answer:
ab(b−1)
Step-by-step explanation:
Factor ab out of ab ^2 − ab
Answer:

Step-by-step explanation:
The area of a regular polygon is calculated using the formula;

where
is the apothem and p is the perimeter.
It was given that, the apothem is,
and the perimeter is 
We substitute into the formula to obtain;


To the nearest square inch, we have;

Answer:Quadrant II
Step-by-step explanation:
The point is located in the second quadrant because x is negative and y is positive. The quadrants are labeled in counter-clockwise order, starting in the upper-right
Let us say that:<span>
P = present value
F = future value
i = interest rate
n = period
P = F / [ (1 + i ) ^n ]
P = 200000 / [ (1 + 0.011) ^6 ]
P = 187293.65
<span>Therefore the student must put up Php 187,293.65</span></span>