Answer:
a) $686
b) 17 weeks
Step-by-step explanation:
a) Set , as Pablo has already saved for 6 weeks. Plug in the value and solve for .
Pablo still needs $686.
b) Set , as it is the "final amount" for that week. Solve for .
Pablo has been saving for 17 weeks if he still needs $477.
Answer:
2b + 4c = 800
c > 100
Step-by-step explanation:
Answer:
At least 1022 new moms should be recruited.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
95% confidence level
So , z is the value of Z that has a pvalue of , so .
How many individuals should the researcher recruit to participate in the study if the researcher wants to be 95% confident that the margin of error is no more than 3.0%?
At least n new moms should be recruited.
n is found when
Rounding up
At least 1022 new moms should be recruited.
Answer:
c. 95 beetles
Step-by-step explanation:
set the equation
y = a* x + b
1) as the intercept is at the origin, b = 0
2) as the slope is 2, a = 2
thus, the equation is : y = 2x