Factor completely.x2 - x - 90
A. (x + 1)(x - 19)
B. (x - 10)(x + 10)
C. (x + 10)(x - 9)
D. (x + 9)(x - 10)
Answer: D
Mathematics
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Decide if the set of ordered pairs does or does not represent a function.{(-5, 8), (-3, -9), (-1, -8), (-1, -3)}
A. Yes B. No
Mathematics
Find all solutions of 
a. 
b. 
c. x = -3
d. x = 4
e.
Mathematics
Solve the quadratic equation. Write the answer in simplest form.3x2 - 21 = 0
A. {
}
B. 
C. 
D. {-
, 
}
Mathematics
Determine whether the following represents a function.
A. function B. not a function
Mathematics