Solve the equation. Use the change of base formula to approximate an exact answer to the nearest hundredth when appropriate.10x = 320
A. x = log -320
B. x = log 
C. x = log 320
D. x = log - 
Answer: C
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Describe all symmetries of the figure shown.
A. 2 lines of symmetry B. 4 lines of symmetry, 90° rotation symmetry C. 4 lines of symmetry D. 2 lines of symmetry, 180° rotation symmetry
Divide using synthetic division.
A. 9x2 + 18x + 21
B. 9x2 + 18x + 21 - 
C. 9x2 - 18x + 21
D. 9x2 + 6x + 5 + 
Provide an appropriate response.Solving for which variable in which equation involves the least amount of work?y = 3x + 157x + 7y = -91
A. x in equation 2 B. x in equation 1 C. y in equation 2 D. y in equation 1
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.b = 7 yd, c = 14 yd
A. a = 7 yd B. a ? 12.1 yd C. a ? 9.9 yd D. a ? 4.6 yd