Answer:
just change the signs
Step-by-step explanation:
y=5-4
Two ways:
Step-by-step explanation:
1. First way. Using the trig unit circle.
tan (pi - x) = - tan x
2. Second way. Apply the identity:
tan(a-b)=tan a- tan b/ 1 - tan a×tan b
tan (π - x)= tan π - tanx/1 - tan(π)×tanx
Since tan (pi) = 0, therefor:
tan(π−x)=−tanx
Answer:
80
Step-by-step explanation:
Using this as a guide,
Number of Registered voters = 60
Number of non registered voters = 40
Total number of women in sample is 80
Total number of men in sample is 20
Thus, the expected frequencies for female registered voters
= (80/100)*60
= 48
Expected frequency for female non registered voters is
= (80/100)*40
= 32
Therefore, the total number of females for the expected frequencies is
48+32 = 80
Answer:
C
Step-by-step explanation:
Just plot all of the numbers and you will see the answer is C.
