Change the complex number to rectangular form.
A. 4.82 - 7.99j
B. -7.99 - 4.82j
C. -2.98 + 8.84j
D. -7.99 + 4.82j
Answer: D
Mathematics
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Replace the polar equation with an equivalent Cartesian equation.r cos ? = 9
A. x = 9 B. y = 9 C. 9y = 1 D. 9x = 1
Mathematics
Provide an appropriate response.A marathoner ran the 26.2 mile New York City Marathon in 2.5 hrs. Did the runner ever exceed a speed of 9 miles per hour?
What will be an ideal response?
Mathematics
Add or subtract. Express the answer as a mixed number.13
- 
A. 11
B. 13
C. 12
D. 12
Mathematics
Determine if a correlation exists at the indicated level of significance.
?? = 0.05
A. Correlation does not exist. B. Correlation exists.
Mathematics