Solve the equation. First simplify the expression by combining like terms.
x + 1 = 
- 
x + 
A. 
B. 
C. 
D. 
Answer: B
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Solve.The radioactive decay of radium 226 can be described by the equation 
where C is the original amount of radium and A is the amount of radium remaining after t years. If 27 milligrams of radium are sealed in a container now, how much radium will be in the container after 100 years. Round to the nearest thousandth.
A. 25.869 mg B. 26.988 mg C. 1.202 mg D. 28.18 mg
Decide whether or not the ordered pair is a solution of the system.(-6, -1)3x + y = -192x + 3y = -15
A. Yes B. No
State whether the vectors are parallel, orthogonal, or neither.v = 3i + 4j,
w = 6i + 8j
A. Orthogonal B. Parallel C. Neither
Solve.A pool of possible jurors consists of 10 men and 16 women. How many different juries consisting of 5 men and 7 women are possible?
A. 11,692 B. 2,882,880 C. 252 D. 9,657,700