The second one mark me brainliest please if you have any more questions please wow
Answer:
65%
Step-by-step explanation:
Make it a fraction:
![\frac{13}{20}](https://tex.z-dn.net/?f=%5Cfrac%7B13%7D%7B20%7D)
Divide 13 by 20:
13÷20
Write it as a decimal:
0.65
Move the decimal 2 places to the right:
6.5
65.
Put the percent sign at the end:
65%
I will do the hypothesis test.
The null hypothesis is: p <= 0.21
The alternative hypothesis is: p > 0.21
Since the confidence interval for this problem is 95%
The critical value for this is 1.960
So the alpha is .05, the p value is equal to 0.05/2 = 0.025
since it is a 2 tailed test. (letter b)
So p value = 0.025 < 0.5, therefore, reject null
hypothesis. More than 21% like the new soft drink.
When x = - 4 then
y = 1/2(-4) -6
y = -2 - 6
y = -8
solution (-4, -8)
answer is
B. (-4, -8) second choice