Provide an appropriate response.If we apply the quadratic formula and find that the value of b2 - 4ac equals zero, what can we conclude?
A. The equation has one rational solution.
B. The equation has two rational solutions.
C. The equation has one irrational solution.
D. The equation has no real solutions.
Answer: A
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Determine what percent of the figure is shaded.
A. 40%
B. 30%
C. 60%
D. 66
%
Find the real or imaginary solutions by completing the square.z2 + 14z + 28 = 0
A. {-7 ± 
}
B. {7 ± 
}
C. {-14 + 
}
D. {7 + 
}
Solve the problem.The marriage rate in a certain country in 1990 was 0.99%, and there were about 397,000 marriages that year. Use the model M(t) = M0(1 + r)t, with a constant marriage rate and t = 0 corresponding to 1990 to estimate the year in which the number of marriages will be 1 million.
A. 2000 B. 2094 C. 2084 D. 2318
Use properties of logarithms to write the expression in terms of logarithms of x, y, z.logb
A. x8z7 - y4b3 B. 8 logbx + 7 logbz - 4 logby + 3 C. logbx8 + logbz7 + logby4 - logbb3 D. 8 logbx + 7 logbz - 4 logby - 3