Answer:
, option B
Step-by-step explanation:
Complex numbers:
The most important relation that involves complex numbers is given by:
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
.
This polynomial has roots 
such that 
, given by the following formulas:
In this question:
The solutions are:
We have to find the polynomial. All option have 
. So
The correct answer is given by option b.
Answer:
a
Step-by-step explanation:
a
Answer:
208
Step-by-step explanation:
13 options for colours = 13C1 = 13
AND
2 options for A/C = 2C1 = 2
AND
2 options for transmission = 2C1 = 2
AND
2 options power windows = 2C1 = 2
AND
2 options for CD player = 2C1 = 2
So,
13×2×2×2×2 = 208
14➗ 420. 14 goes into 42 , 3 times subtract bring down the zero and your answer is 30
The tip would increase by $0.44. If you find how much the tip would be originally and compare it to the tip after the coupon is used, it would be $9.76 - $9.32 = $0.44. Richards method would give an extra $0.44 as a tip.
