Determine whether the study is an experiment or an observational study.A pollster obtains a sample of students and asks them how they will vote on an upcoming referendum.
A. experiment
B. observational study
Answer: B
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Solve the problem.The city park district is planning on sodding the outfield of the little league baseball field. Thedistance from home plate to the outer edge of the infield is 70.00 ft. The angle between the outer edge of the first and third baselines is 90°, and the radius of the sector is 315.0 ft. Determine the area of the outfield.
A. 306,800 ft2 B. 4,460,000 ft2 C. 77,930 ft2 D. 73,030 ft2
Solve the equation for the specified variable.A = 
h(B + b); solve for B
A. B = 2A - bh
B. B = 
C. B = 
D. B = 
Solve the problem.Calculate the coordinates of the new location of the point (-18, -18) when it is rotated 45° clockwise about the origin. Remember that it is the matrix 
that rotates a point 45° clockwise about the origin.
A. 
B. 
C. 
D. 
Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.57 ? 5-5
A. 25
B. -535
C. -175
D. 