So basically it's just a simple division equation (kind of):
600/3000
We can simplify this so the denominator is 100
20/100
So she saved 20% of her money in the month of January.<span />
Step-by-step explanation:
t1= 2-3-6=-7
t2= 8-6-6=-4
t3=18-9-6=3
Answer:
Z=+6
Step-by-step explanation:
Z^5=-7776i
Let's note that i I mathematics means negative one i.e
i = -1
So the equation is equal to
Z^5=-*-(7776)
Z^5 = 7776
Z= 5√7776
Since it's a divisible by 6
It's giving us a clue that 6 it's the answer.
Ok let's check the 5th root of 7776 in our calculator.
Z=+6
+6 is the solution to the equation
Z^5=-7776i
Use the cos rule
cos^-1(18^2+28^2-12^2 divided by 2*18*28
Which is 16.99 degrees, which is 17 (option d)
