Complete the square in x and y to find a Cartesian equation of the form 
+ 
= 1 for the given equation. Identify the center. 2x2 + 5y2 - 28x + 40y + 168 = 0
A. 
+ 
= 1; Center: (-7, 4)
B. 
+ 
= 1; Center: (7, -4)
C. 
+ 
= 1; Center: (7, -4)
D. 
+ 
= 1; Center: (-7, 4)
Answer: B
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Write the reciprocal of the number.4
A. does not exist
B. 
C. -4
D. - 
Use the distributive property to write the sum as a product.(7)e + (7)q
A. 14(e + q) B. 7(e ? q) C. 7(e + q) D. 7(e - q)
Two sides and an angle are given. First, determine whether the given information results in no triangle, one triangle, or two triangles. Solve each resulting triangle.A = 65°, a = 4, b = 6
A. one triangle; B = 34°, C = 81°, c = 14 B. one triangle; B = 32°, C = 83°, c = 12 C. no triangle D. one triangle; A = 33°, C = 82°, c = 10
Find a decimal approximation for the fraction or mixed number, rounded to the given place value. 
; thousandths
A. 0.264 B. 0.667 C. 0.267 D. 0.268