Perform the indicated operation(s), whenever possible.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. 
Answer: A
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Provide an appropriate response.Determine the type of polynomial, according to the number of terms: 
A. trinomial B. binomial C. monomial D. none of the above
Write the following as a base-ten numeral.8 ? 102 + 3
A. 703 B. 800 C. 803 D. None of these
Using the addition/subtraction method, find the value of x and y to satisfy the following equations: 2x + 3y = 3; 3x + 6y = 10
a. 1 1 x = -4Ä y = 3Ä 3 3 b. 1 2 x = 4Ä y = 2Ä 2 3 c. 2 x = -4 y = 3Ä 3 d. x = -4 y = 3 e. 2 x = 4 y = -3Ä 3
Solve the problem.A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 100 feet downstream and sights point B on the opposite bank to determine that ? = 30° (see figure). How wide is the river (round to the nearest foot)? 
A. 50 ft B. 58 ft C. 173 ft D. 115 ft