-2
1
2
I don't know
0
No answer
Which function is differentiable on Rℝ?
x↦|x|x↦|x|
x↦x2x↦x2
I don't know
x↦1xx↦1x
No answer
Let us consider three sets, A, B and C.
Amongst the following, which one is equal to D=[(A∩B)∪C]c D=[(A∩B)∪C]c?
(Ac∪Bc)∪Cc(Ac∪Bc)∪Cc
I don't know
(Ac∩Bc)∪Cc (Ac∩Bc)∪Cc
(Ac∩Cc)∪(Bc∩Cc) (Ac∩Cc)∪(Bc∩Cc)
No answer
How many vectors of four bits can be written (binary base)?
I don't know
32
4
16
8
No answer
A trifecta is a parimutuel bet in which the bettor must predict which horses will finish first, second, and third in exact order.
The word comes from the related betting term, "perfecta". A trifecta is known as a "tricast" in the United Kingdom, as a "tiercé" in Hong Kong and France and as a "tris" in Italy.
Now, let us imagine a race with ten horses.
How many ordered trifectas are then possible?
I don't know
720
1
120
No answer
Let's consider the function f(x)=0.25+x3f(x)=0.25+x3
Give a value for the constant C such as
g=C∗fg=C∗f
and
(C×(∫1−1f(x)dx)) = 1C×∫-11fxdx = 1
0.5
2
I don't know
1
No answer
Let the straight L1 be defined by the equation 3x + 2y = 73x + 2y = 7
Let the straight line L2 be defined by the equation 9x + 6y = 09x + 6y = 0
Which of the following holds true?
L1 goes through the origin (C)
L1 and L2 are perpendicular (A)
A and D
L2 goes through the origin (D)
B and D
B and C
L1 and L2 are parallel to each other (B)
I don't know
No answer