Answer: Yes Rozonda's definition is valid
Step-by-step explanation:
Answer:
B) 8:9
Step-by-step explanation:
Please refer to the attached image for explanations
Let <em>n </em>represent the date and <em>f(n)</em> represent the money on a specific day.
We see that the pattern is every day, we add $0.50 into our little piggy bank.
So on day 1, we get $0.50 and on day 2, we get $1.00. We can see it is a linear function and since in is increasing by $0.50, our slope <em>m </em>is $0.50.
So we get:
<em>f(n) = </em>0.5<em>n</em>
Let's test this. On day 3 we get:
<em>f(3) </em>= <em>0.5(3) </em>= 1.50
So it works! So our answer is:
<em>f(n) = 0.5n
</em><em />Hopes this helps!
Answer:
-625
Step-by-step explanation:
The magnitude gets raised to the power, and the angle gets multiplied by the power:
5(cis7pi/4)^4 = (5^4)cis(4·7π/4) = 625cis(7π) = 625cis(π) = -625
