Solve the following quadratic equation using the quadratic formula. Find the exact answer. If there are no real solutions, so state.0.5x2 + 1.2x + 0.5 = 0

A. x = 
B. x = 
C. x = 
D. x = 


Answer: D

Mathematics

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Construct a truth table for the statement.(p ? q) ? (~p ? q)

A.

TTT
TFF
FTT
FFF

B.
TTF
TFT
FTF
FFF

C.
TTT
TFT
FTT
FFT

D.
TTT
TFF
FTT
FFT

Mathematics

Use Pythagorean identities to find the indicated function value.cos ? = - , 180° < ? < 270°; find sin ?

A. - 
B. - 
C. - 
D. - 

Mathematics

Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 18y + 17 = 0

A. x2 + (y + 9)2 = 64 center (0, 9), r = 8 B. x2 + (y - 9)2 = 64 center (0, 9), r = 8 C. x2 + (y + 9)2 = 64 center (0, -9), r = 8 D. (x + 9)2 + y2 = 64 center (-9, 0), r = 8

Mathematics

Determine the domain and range of the function.{(2, -7), (3, -8), (7, -5), (6, -7)}

A. Domain: {2, 3, 7, 6}; range: {-7, -8, -5} B. Domain: {2, 3, 7, -6}; range: {-7, -8, -5} C. Domain: {2, 3, 7, 6}; range: {-7, -8, -5, 6} D. Domain: {-7, -8, -5}; range: {2, 3, 7, 6}

Mathematics