Decide what number must be added to the binomial to make a perfect square trinomial.x2 - 6x
A. 18
B. -3
C. 9
D. 5
Answer: C
Mathematics
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Decide whether the statement is true or false.If a triangle is equilateral (all sides the same), then it cannot be obtuse.
A. True B. False
Mathematics
The graphs of f(x) and g(x) are given.
a) For what values of x is f(x) = g(x)?
b) Find the values of f(-2) and g(4).
Mathematics
Evaluate the expression.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Let Q represents a mass of radioactive radium 
(in grams), whose half-life is 1,599 years. The quantity of radium present after t years is 
. Determine the quantity present after 500 years. Round to the nearest hundredth of a gram, if necessary.
a. 0 g b. 0.31 g c. 0.81 g d. 1.61 g e. 2 g
Mathematics