1. Use the discriminant to determine the number of real roots the equation has. 3x2 5x + 1 =0
(a) One real root (a double root),
(b) Two distinct real roots,
(c) Three real roots,
(d) None (two imaginary roots)
Solution:
Discriminant = bx2 4ac
Compare the

1. Jones covered a distance of 50 miles on his first trip. On a later trip he traveled 300 miles while going
three times as fast. His new time compared with the old time was:
(a) three times as much, (b) twice as much, (c) the same, (d) half as much, (e)

1.What is 29? 841
2. What is the sqaure root of 289? 17, -17
3. 5(4x+11)+3(2x+4)=347
x=? x=11
4. What is 8? 512
5. What are the first 10 digits of pi? 3.1415926535
6. There are 640 marbles in a bag. There are red, blue, and green marbles. After losing a t

1. The sum of three numbers is 98. The ratio of the first to the second is 2/3, and the ratio of the second
to the third is 5/8. The second number is:
(a) 15, (b) 20, (c) 30, (d) 32, (e) 33
Solution:
Let the three numbers be x, y and z.
Sum of the numbers

1.
The value of x + x(xx) when x = 2 is:
(a) 10, (b) 16, (c) 18, (d) 36, (e) 64
Solution:
x + x(xx)
Put the value of x = 2 in the above expression we get,
2 + 2(22)
= 2 + 2(2 2)
= 2 + 2(4)
=2+8
= 10
2. Mr. Jones sold two pipes at $1.20 each. Based on the