Subtract. Simplify, if possible.
- 
A. 10
B. 
C. 
D. 
Answer: D
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Solve the problem.A gazebo is designed with 5 sides, and a roof truss runs from each corner to the center. You make two cuts on the end of each truss so that a point is formed as illustrated. What angle (to the nearest degree) must each cut be so that the trusses fit together in the center of the roof?
A. 90° B. 108° C. 72° D. 54°
Write the imaginary numbers using the letter i.
A. -5
B. 5
C. -5i
D. 5i
Tell whether the expression is a polynomial. If it is, give its degree.
+ 1
A. Polynomial, degree 25 B. Polynomial, degree -1 C. Polynomial, degree 0 D. Not a Polynomial
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
S = __________ cm2
Fill in the blank(s) with the appropriate word(s).