Find an equivalent equation in rectangular coordinates.r - 6 sin ? = 4 cos ?
A. x2 + y2 + 6y = 4x
B. x2 + y2 - 6y = 4x
C. 
- 6y = 4x
D. x2 + y2 = 0
Answer: B
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Solve formula for the specified variable.A = 
bh
for b
A. b = 
B. b = 
C. b = 
D. b = 
Provide an appropriate response.A credit card charges 2
% interest per month on the average daily unpaid balance of the account. What would be the finance charge for one month on a balance of $567.89?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.In a survey of 1000 Americans, 850 said that they own a cell phone. Assume that the survey was properly conducted and that the 1000 people surveyed represent an unbiased sample of the entire population. Compute a 95% confidence interval (expressed using percents) for this survey.
A. 84.8% to 85.2% B. 82.8% to 87.2% C. 84.08% to 85.02% D. 81.7% to 88.3% E. 83.9% to 86.1%
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(6 - 5i)(7 + 3i)
A. -15i2 - 17i + 42 B. 27 - 53i C. 57 + 17i D. 57 - 17i