So basically, these questions want you to find the variable<em> x</em>, which you can do by isolating the variable.
3) x * 1/2 = 1/3 <-- To isolate the x in this case, you want to divide both sides by 1/2, aka multiply by 2.
x = 2/3
4) x * 3 = 2 <-- To isolate x, you want to divide both sides by 3
x = 2/3
5) 1/4 * x = 1/6 <-- To isolate x, you want to divide both sides by 1/4, aka multiply by 4.
x = 4/6 = 2/3
6) 4 1/2 * x = 1 1/2 <-- First, let's make these into improper fractions
9/2 * x = 3/2 <-- To isolate x, you want to divide both sides by 9/2, or multiply both sides by 2/9
x = 6/18 = 2/3
D 20 units
I know this because 7+7=14 and 3+3=6. Then 6+14=20.
Answer:
(x,y) -> (-x,-y)
Step-by-step explanation:
You need the opposites of both points, not just one of them.
Answer:
D. 1.12
Step-by-step explanation:
I calculated it logically
1. By de Moivre's theorem,
2. First write the given number in exponential/trigonometric form.
has modulus
and since it lies in the second quadrant of the complex plane, its argument is
So, we have
Now we apply de Moivre's theorem again, and make sure to account for the multivalued-ness of the exponential function. For 
, the fifth roots of 
are
