Express the complex number in trigonometric form.-6i Express your answer in degrees.
A. 6(cos 270° + i sin 270°)
B. 6(cos 90° + i sin 90°)
C. 6(cos 0° + i sin 0°)
D. 6(cos 180° + i sin 180°)
Answer: A
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Rewrite as a radical expression and simplify if possible. Assume all variables represent nonnegative real numbers.(196t6)1/2
A. 14t3
B. 14t6
C. 
D. 14
Find the area of the triangle using Heron's formula. Round your answer to two decimal places as needed.
A. 229.64 yd2 B. 45.93 yd2 C. 32.48 yd2 D. 162.38 yd2
Refer to the illustration. Find 
if 
and 
data-wiris-created="true" varid="variable_id_field" variablename="impvar_45720ed5f15d40cb8b0a3d2ec" />.
?
?
A. 2
B. 
C. 
D. 6
E. 
For the problem below, ? is a central angle in a circle of radius r. Find the length of arc s cut off by ?. ? ?= 315°, r = 5 inches. ?
A. s = 29 inches B. s = 27.5 inches C. s = 31 inches D. s = 28.5 inches E. s = 29.5 inches