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other Mathematics
Are You A Math Whiz?
10 Questions - Developed by:
Aiden
- Developed on:
2013-10-15
- 5,625 taken - 4 people like it
Find out how well you do in mathematics. Favorably for age 18 and above.
1
If ( X + Y )( X - Y) = K, where K is a positive whole number, which one of these statements is TRUE?
X > Y.
Y is always positive.
X is always positive.
X < Y.
None of these statements is true.
2
Suppose there is a circle inside a square and there is a smaller square inside the circle. What is the maximum ratio of (area of smaller square: area of bigger square)?
0.5
Pi/4
1/sqrt(2)
0.25
2/pi
3
If {a + b + c = 1}, {b + c + d = 1}, {c + d + a = 1} and {d + a + b = 1}, with none of {a, b, c, d} being equal, what is the value of
{a + b + c + d}?
2
1
4/3
It cannot be determined.
3/4
4
Suppose Jerry wants to create a password for his computer account. If the password must be 5 characters (3 numbers and 2 alphabets) in any order, any number cannot be repeated, any number must not be zero, and the alphabet can be in either upper or lower case, how many combinations of passwords can Jerry create?
9 x 8 x 7 x 52 x 52 x 10
9 x 9 x 9 x 52 x 52 x 20
10 x 9 x 8 x 26 x 26 x 20
10 x 9 x 8 x 26 x 26 x 10
9 x 8 x 7 x 52 x 52 x 20
5
What geometry is enclosed by graphs {y = 2x}, {y = -2x}, {y = 2x + log pi}, {y = -2x + log pi}?
Rectangle
Square
Trapezoid
Rhombus
Kite
6
What is the sum of all internal angles of convex octagon (in degrees)?
1260
720
1080
1440
900
7
What is the first derivative of {2y ln(sin(2y))}?
2 ln(sin(2y)) + 2y cot(2y)
Ln(sin(2y)) + 4y tan(2y)
2 ln(sin(2y)) + 4y cot(2y)
Ln(sin(2y)) + 2y cot(2y)
2 ln(sin(2y)) + 2y tan(2y)
8
Suppose Ben has a pool of balls containing 5 green balls and 4 yellow balls. Ben takes one ball at random, and takes the second one and then the third one, also at random. By assuming that he never returns any ball to the pool after taking, what is the probability that the color of the first-second-third ball is NOT alternating?
31/36
13/36
13/18
5/18
5/36
9
A right triangle has x, (2x-1), and (2x+1) as the sides. Calculate the perimeter of a rectangle which has 3x and (4x-3) as the sides.
92
134
120
148
106
10
When is 2^a is greater than a^2?
When a > 4.
All the time.
None of these statements is correct.
When a > 4 or a < 2.
Only if a is not equal to either 2 or 4.
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