Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log3.9 10
A. 0.59
B. 1.00
C. 2.56
D. 1.69
Answer: D
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Find the x- and y-intercepts of the graph of the equation.y = 4x
A. x-intercept: (4, 0); y-intercept: (0, 4) B. x-intercept: (0, 0); y-intercept: (0, 4) C. x-intercept: (4, 0); y-intercept: (0, 0) D. x-intercept: (0, 0); y-intercept: (0, 0)
Solve the problem.A charged particle of mass m and charge q moving in an electric field E has an acceleration a given by 
where q and E are constants. Find 
.
A. 
= 
B. 
= 
C. 
= - 
D. 
= 
Solve the problem.The side of an equilateral triangle is 
shorter than the side of a square. The perimeter of the square is 
more than the perimeter of the triangle. Find the length of a side of the square.
A. 20 inches B. 18 inches C. 12 inches D. 19 inches
Find the foci of the ellipse.9x2 - 90x + 25y2 - 200y + 400 = 0
A. (2, 4), (8, 4) B. (1, 4), (9, 4) C. (4, 2), (4, 8) D. (0, 4), (10, 4)