Answer:
a² + 4 a + 4
Step-by-step explanation:
( a + 2 ) ( a + 2 )
Expand brackets
a² + 2 a + 2 a + 4
Simplify
a² + 4 a + 4
Answer:
81 + 6 + 1 = 88 if that's your question
Step-by-step explanation:
2sin3x-1=0
sin3x=1/2
sinx=1/2, x=pi/6, 5pi/6
3x=arcsin(1/2)
x=1/3*pi/6
[x=pi/18]
Answer:
1.41 %
Step-by-step explanation:
Principal amount (P) = $500
Time (T) = 2 weeks = 2 * 7 days = 14 days
Interest = $80
So,
Interest = P*T*
=> 80 = 500 * 14 * 
=> 80 = 7000 * 
Flip the sides of the equation
7000 *
= 80
Multiply both sides by 100
7000 *
* 100 = 80 * 100
Cancel out the 100's on the top and bottom from the left side
7000 * R = 8000
Divide both sides by 7000
= 
Cancel out the 7000's on the top and bottom from the left side
R = 1.41 %
So, the periodic interest rate of the loan = 1.41 %