Algebra
Solve for x
(1/2)x + 3 = 1
x = - 4
143 + 177 = ?
320
If it takes 60mins for 120 members in an orchestra to finish Beethoven's 7th symphony, then how long would it take for 60 members to finish Beethoven's 7th symphony?
60 mins
The basic unit of life is?
Cell
In the EM spectrum, what color has the longest wavelength?
Red
If the area of the circle is (144 + 52)pi. What is r?
r = 14
What the square root of 144?
12
If diameter of a circle is 10 cm, then what would be the circumference of the circle?
10pi cm
What organ is responsible to reproduce egg cells?
Ovaries
How many possible combinations does a rubrik's cube have?
Choices:
A. 45 quintillion
B. 44 quintillion
C. 43 quintillion
D. 42 quintillion
E. 41 quintillion
C. 43 quintillion
What is the factored form of x2 + 2x + 1.
(x + 1)2
210 + (sqrt 4) = ?
1026
If Johnny is 1.5 times older than his father, then what is Johnny's age?
Express your answer in terms of x.
Though the mathematical expression for this problem is 1.5x, this problem is impossible to occur because it is impossible for Johnny to be older than his father.
How much of the Earth is covered by water?
Note: Express your answer in percentage form.
71%
There are barnacles attached to the whale. What type of symbiotic relationship is shown?
Commensalism
x3 + 3x2 + x2 + 2x - 1 = 0
Solve for x
x = -1, (-3 + sqrt13)/2, (-3 - sqrt13)/2
(3 + 2)2 / 5 + 83 - (23 + 2) = ?
63
The area of my land is 1000 square meters, if I want to build a wall around my land, how long should the walls be to cover the land?
Note: Assume that the land looks like a square in a 2d perspective.
4(sqrt 1000)m = 40(sqrt 10)m
What is the name of the process where a substance turns solid to gas?
Sublimation
How heavy is 200ml of water?
200g
Sin2 (x) + Cos2 (x) =1
What is the domain?
{x|x ∈ R} or (-∞, ∞)
(1/2/3/4)2 + 3/2 - 3-2+1 + 4(sqrt 144) - (13) + 210 = ?
Choices:
A. 1025.557292
B. 1026.557292
C. 1027.557292
D. 1025.657290
E. 1024.557292
A. 1025.557292
In a right-angled triangle, an altitude is drawn from the right-angle vertex to the hypotenuse. What is the area of a triangle?
Altitude = 4cm
Hypotenuse = 5cm
It is impossible that this triangle exists.
What is the type of energy do humans produce?
It is impossible for humans to produce energy because according to the Law of Conservation of Energy, energy cannot be created or destroyed; it can only be transformed from one form to another.
What is the derivative of 3x3 + 2x2 - 3
9x2 + 4x