Solve the equations.x2 = 20
A. ±2
B. ±10
C. ±5
D. 400
Answer: A
Mathematics
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Find the indicated probability.The following table show the results of a clinical trial for an allergy drug. 
What is the probability that a randomly selected person received no treatment or improved? Round your answer to the nearest thousandth when necessary.
A. 0.89 B. 0.082 C. 0.742 D. 0.66
Mathematics
Answer true or false.k ? {p, a, k, h, v}
A. True B. False
Mathematics
Provide an appropriate response.Prepare a table showing the percent and decimal equivalents for these fractions: 
, 
, 
, and 
.
What will be an ideal response?
Mathematics
Find the graph that matches the given system of equations.x + y = 6y = x - 2
A. 
B. 
C. 
D. 
Mathematics