There are 15 balls in a box: 8 balls are green, 4 are blue and 3 are white. Then 1 green and 1 blue balls are taken from the box and put away. What is the probability that a blue ball is selected at random from the box?
3/13
4/13
3/15
4/15
2/13
The length of a rectangle is 3 times its width. If the width of the rectangle is 5 inches, what is the rectangle's area, in square inches?
15
75
40
30
20
If the hypotenuse of a right triangle is 10 inches long and one of its legs is 5 inches long, how long is the other leg?
5
10 - √5
5√5
5√3
A circle with center (4,-5) is tangent to the y-axis in the standard (x,y) coordinate plane. What is the radius of this circle?
4
√(41)
16
25
Angle A is an acute angle and sin(A) = 11/14. What is the value of cos(A)?
3/14
√3 / 14
5√3 / 14
√(3/14)
5/14
What are the values of a and b, if any, where - a|b + 4| > 0?
a > 0 and b ≠ -4
a > 0 and b ≠ 4
a < 0 and b ≥ -4
a < 0 and b ≠ -4
a < 0 and b ≤ -4
In a shipment of televisions, 1/50 of the televisions are defective. What is the ratio of defective to non defective televisions?
1/200
50/1
49/1
1/50
1/49
Which of the following is divisible (with no remainder) by 4?
214133
214395
952217
322569
510056
If 8y = 3x - 11, then x =
(88/3) y
(8y + 11)/3
(8y - 11)/3
(8/3) y - 11
(8/3) y + 11
Which of the statements describes the solution set for -2(x + 8) = -2x + 20?
x = - 2 only
x = 0 only
x = 20 only
There are no solution for this equation.
All real numbers are solutions of this equation.
