Answer: C
|x+5| = 7 (Spilt into 2 problems)
X+5=7
X+5=-7
Solve for x on both
x=2 and x=-12
Answer:
11) 
12) 
13a) 
and 
13b) 
Step-by-step explanation:
11. The given equation in rectangular coordinates is 
To convert to polar form, use the relation 
This implies that:
In polar coordinates, is a circle with radius 4 units.
12. From the diagram;
We can see that two arrows are moving in anticlockwise direction to meet A which is moving in the clockwise direction;
13. The conjugate of the complex number: 
is 
Part a) The given complex numbers are:
and 
The conjugates of these complex numbers are:
and
Part b) The product of and is
The conjugate of the product is:
Step-by-step explanation:
CCTV cameras in a bit more of the day I will have a great time and where is the only thing that has to do with it
To solve for the A or the principal amount plus interest you can use two formulas:
A = P + I
Where: P = Principal
I = Interest
or you can use
A = P (1+ rt)
Where: P = principal
r = rate in decimal
t = time in years
With your given you can use the second one, without having to use the first.
Given that the Principal amount is $222 and the rate is 12% and time is 10 years, we first need to convert your rate into decimal by dividing the value in percent by 100 which will yield 0.12.
Then now we can just input the data that you know into the formula:
A = P(1+ rt)
= $222(1 + (0.12)(10))
= $222(2.2)
= $488.40
Your A is then equal to $488.40
If you need to get the simple interest all you need to use is the first formula given:
A = P + I
for the interest you transpose the P to the side of the A and you will get:
I = A - P
= $488.40 - $222
= $266.40
$266.40 is the added interest to the principal amount.
