Answer and explanation:
Null hypothesis: p is not 54%
Alternative hypothesis : p is equal 54%
First find standard deviation
Standard deviation is:
σ = √[ P ( 1 - P ) / n ] = √[ 0.54×0.46/220 ] =0.033
The z score is calculated p-P/σ = (0.54-0.50)/0.033 = 1.2121
Therefore we can conclude that proportions are not same and fail to reject the null hypothesis
Answer:
124
Step-by-step explanation:
<span>Well first this one you can just count which ones are 9 units away so it could be A becuase -4+-9=-13
Another is B because
-4+9=5
</span>I hope it helps.
Comment if you need more help
Y=9(x^2+3x-x-3)
y=9(x^2+2x-3)
y=9x^2+18x-27
For finding the measure of C you should know a line is 180° so 124°+C = 180
now you can say:
C = 180°- 124° = 56 °
so the answer is 56° :)))
i hope this is helpful
have a nice day