Evaluate the discriminant for the equation. Then use it to predict the number of distinct solutions, and whether they are rational, irrational, or nonreal complex.2 - 5a2 = 4a - 3
A. Two distinct irrational solutions
B. Two distinct nonreal complex solutions
C. Two distinct rational solutions
D. One rational solution (a double solution)
Answer: A
Mathematics
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Find the unknown diameter or radius as indicated.
A. 6.15 ft B. 2.8 ft C. 4.396 ft D. 0.7 ft
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Determine whether the function f(x) = (x + 4) 2 , x ? –4 has an inverse function. If it does, find the inverse function.
a. 
b. f –1 (x) = –(x + 4) 2
c. f –1 (x) = (x + 4) –2
d. 
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Solve.x2 + y2 + 9y = 0x2 + y2 = 7x
A. (1,0) 
B. (0,1) 
C. (1, -1) 
D. (0,0) 
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Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics