Answer:
1. D
2. y = 15.50x + 450
Step-by-step explanation:
1. Since it is a function, the missing pair can't repeat input values with different output, therefore only option D is unique so is the correct choice.
2. x > (y - 450)/ 15.50
i) Rita gets paid $450 per week.
ii) She gets $15.50 for every new membership she sells.
iii) let y represent the total pay per week.
iv) let x represent the number of new memberships sold.
v) the equation representing total pay is y = 15.50x + 450.
vii) therefore the equation that represents a higher rate of membership sold is given by x > (y - 450)/ 15.50
Answer:
he will pay more
Step-by-step explanation:
in totoal he will pay 413.40 because apr is interest
his interest total will be 13.40$
Answer:
C. 70%
Step-by-step explanation:
35 / 50 = 70/100 = 70%
So she will be 70% accurate in the next shot.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer: did you forget the picture?
Step-by-step explanation: send the picture and i’ll try to help
Answer:
The minimum sample size is needed to be 90% confident that the sample mean is within 1 day of the true population mean is 25.
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.
If the population standard deviation is 3 days, what minimum sample size is needed to be 90% confident that the sample mean is within 1 day of the true population mean?
This is n when
. So





Rouding up to the nearest integer, 25.
The minimum sample size is needed to be 90% confident that the sample mean is within 1 day of the true population mean is 25.