Solve the problem.The sum of the squares of two numbers is 5. The sum of the two numbers is 1. Find the two numbers.
A. -2 and 1
B. -1 and 2
C. 1 and 2; or -2 and -1
D. -1 and 2; or -2 and 1
Answer: B
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Find the limit using 
= 1.
A. 
B. does not exist
C. 0
D. 
If the sides of a triangle are a, b, and c and they satisfy a2 + b2 = c2, the triangle is a right triangle. Determine whether the triangle with the given sides is a right triangle.a = 1, b = 
, c = 
A. Yes B. No
Decide whether the dose is reasonable or unreasonable. If it is unreasonable, indicate whether it is too much or too little.Take 125 kilograms of vitamin C every day.
A. Reasonable B. Unreasonable, too little C. Unreasonable, too much
Solve.The area of a circle is found by the equation A = ?r2. If the area a of a certain circle is 16? square inches, find its radius r.
A. 32 inches B. 8 inches C. 4 inches D. 8? inches