Solve.20x2 + 37x + 15 = 0
A. 
, - 
B. - 
, - 
C. - 
, - 
D. 
, 
Answer: B
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Find a Cartesian equation for the parametric equations.x = 4 cosh t , y = 5 sinh t
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Simplify the right-hand side of the equation.f(x) = 
A. 
B. - 
C. 
D. 
In the current first-year class of a community college, all the students come from three local high schools. Schools I, II, and III supply respectively 40%, 50%, and 10% of the students. The failure rate of students is 4%, 2%, and 6%, respectively. What is the probability that a student chosen at random will fail?
Fill in the blank(s) with the appropriate word(s).
For the function find the maximum number of real zeros that the function can have, the maximum number of x-intercepts that the function can have, and the maximum number of turning points that the graph of the function can have. f(x) = -9 - x2
A. 2; 2; 2 B. 1; 2; 2 C. 2; 1; 1 D. 2; 2; 1