Find the sum or difference. Write the answer in standard form.(6 - 9i) + (3 + 6i)
A. 9 + 3i
B. 9 - 3i
C. -9 + 3i
D. 3 + 15i
Answer: B
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Determine whether the study involves selection bias, participation bias, both selection bias and participation bias, or neither.You are interested in the degree of satisfaction amongst customers at your video store. For one week, you hand a customer satisfaction questionnaire to every customer who comes into the store and ask them to fill it out and place it in a box after they check out.
A. Selection Bias B. Participation Bias C. No Bias D. Participation Bias and Selection Bias
Find the derivative of the function at the given point in the direction of A.
A = 3i - 4j
A. 
B. 
C. 
D. 
R1 = 47 ê, R2 = 53 ê, and R3 = 90. What is the value of RT?
a. 9.75 ê
b. 19.51 ê
c. 45.00 ê
d. 63.98 ê
e. 190.0 ê
Find the percent using a proportion. Round your answer to the nearest tenth if necessary.What percent of 61 mice is 373 mice?
A. 1.6% B. 61.1% C. 611.5% D. 0.2%