Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. log4.2250
A. 2.398
B. 0.260
C. 59.524
D. 3.847
Answer: D
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Solve the problem.An airplane flying faster than the speed of sound creates sound waves that form a cone. If ? is the vertex angle of the cone and m is the Mach number for the speed of the plane, then 
Find the Mach number to the nearest tenth if 
A. 5 B. 3.9 C. 3.7 D. 4.5
Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of 5 + 5i
A. 
(cos 20° + i sin 20°), 
(cos 140° + i sin 140°), 
(cos 260° + i sin 260°)
B. 
(cos 20° + i sin 20°), 
(cos 140° + i sin 140°), 
(cos 260° + i sin 260°)
C. 
(cos 20° + i sin 20°), 
(cos 140° + i sin 140°), 
(cos 260° + i sin 260°)
D. 
(cos 30° + i sin 30°), 
(cos 150° + i sin 150°), 
(cos 270° + i sin 270°)
In the figure, 
is tangent to the circle at point T while 
is a secant for the circle.
Answer the following statement true (T) or false (F)
Solve.x2/3 - 7x1/3 + 10 = 0
A. 2, 5 B. 8, 125 C. -125, -8 D. -5, -2