Use the method of your choice to find all real solutions of the equation.20b2 + 37b + 11 = -4
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem. Express your answer in scientific notation, and round to one decimal place. The speed of light is 1.86 × 105 miles/second. How far can light travel in one hour? Round to one decimal place.
A. 6.7 × 10-8 miles B. 6.7 × 108 miles C. 6.7 × 106 miles D. 6.7 × 109 miles
Mathematics
Find the mode(s) for the given sample data. The blood types for 30 people who agreed to participate in a medical study were as follows.
?Find the mode of the blood types.
A. O B. 13 C. O, A D. A
Mathematics
Find the area under the normal curve for the condition.Find the percent of the total area under the curve between z = 0.54 and z = 1.91.
A. 23.3% B. 26.6% C. 26.7% D. 26.3%
Mathematics
Establish the identity.
= - 
What will be an ideal response?
Mathematics