Determine all solutions of the equation in radians.Find cos 
, given that cos x = 
and x terminates in 0 < x < 
.
A. 
B. 
C. 
D. 
Answer: C
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Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (-1, -5); parallel to y = - 
x - 9
A. y = 4x + 1
B. y = 4x - 1
C. y = - 
x + 
D. y = - 
x - 
Examine the discriminant of each equation and determine the nature of the roots.x2 + 7x - 8 = 0
A. One real solution B. Two real solutions C. No real solutions
Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if tan ? = 3, then find the value of cos ?.
A. 
B. 
C. 
D. 
Write a word name for the number in the sentence.The holder of the "magic number" 444,222,888,555 (which was generated during a college's lottery for distributing student housing) was eligible to choose from among the best dormitories.
A. Five hundred fifty-five million, eight hundred eighty-eight billion, two hundred twenty-two thousand, five hundred fifty-five B. Four hundred forty-four million, two hundred twenty-two billion, eight hundred eighty-eight, five hundred fifty-five thousand C. Four hundred forty-four billion, two hundred twenty-two million, eight hundred eighty-eight thousand, five hundred fifty-five D. Eight hundred eighty-eight thousand, two hundred twenty-two billion, four hundred forty-four million, five hundred fifty-five