Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(x-2y5)-2
A. 
B. 
C. 
D. 
Answer: D
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Several triangles are shown below with congruent sides, congruent angles and right angles shown.
(a) Which ones are scalene triangles?
(b) Which ones are isosceles triangles?
(c) Which ones are right triangles?
(d) Which ones are equilateral triangles?
(e) Which ones are obtuse triangles?
Find the real solutions, if any, of the equation. Use the quadratic formula.5x2 + x - 5 = 0
A. {
, 
}
B. {
, 
}
C. {
, 
}
D. no real solution
Provide an appropriate response.What is the relationship between the slopes of two parallel lines?
A. One slope is the reciprocal of the other. B. One slope is the negative of the other. C. They are the same. D. There is no general relationship, because the y-intercepts can be different.
Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when x = 0 and x = 4.
A. 5000, 20,000 B. 10,000, 80,000 C. 5000, 80,000 D. 5000, 40,000