Refer to the figure with B the midpoint of side 
and E the midpoint of side 
.
If CD = 10 and AF = 20, find BE.
(a) 30 (b) 20 (c) 15 (d) 45
(c) 15
Mathematics
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Use an identity to write the expression as a single trigonometric function or as a single number.
A. sin 9° B. cot 9° C. tan 9° D. cos 9°
Mathematics
Add or subtract, as indicated.4.940 - (-0.26)
A. 1.284 B. 4.68 C. 5.3 D. 5.2
Mathematics
Solve the equation. If the solution set is ? or (-?, ?), classify the equation as an inconsistent equation or an identity.-6(x + 4) + 16 = 2x - 8(x + 3)
A. (-?, ?); identity B. {40} C. {-8} D. ?; inconsistent equation
Mathematics
Find the slope of the line. 
A. 5 B. -1 C. -5 D. 1
Mathematics