For problem 5-9, solve the system of equations by substitution.
A. 
B. 
C. 
D. 
E. None of these
Answer: D
Mathematics
You might also like to view...
Use radical notation to write the expression. Simplify if possible.(-64)4/3
A. 4096 B. not a real number C. 256 D. -256
Mathematics
Solve the problem.The formula D = 7e-0.04h can be used to find the number of milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. When the number of milligrams reaches 2, the drug is to be given again. What is the time between injections?
A. 17.33 hr B. 31.32 hr C. 48.65 hr D. 34.43 hr
Mathematics
Find the quotient 
of the complex numbers. Leave answer in polar form.z1 = 6
z2 = 12
A. 
B. 
C. 
D. 
Mathematics
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cos (-60°)
A. 
B. - 
C. - 
D. 
Mathematics