delta intellect
delta intellect
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Permutation and Combination
In how many ways can three vacancies be filled out of five applicants?
Plane Geometry
The exterior angle of a regular pentagon is 70 degrees. Find the sum of its interior angles.
Polynomial Functions
Find the quadratic equation whose roots are 3 and -m.
Probability
Two dice are thrown once. What is the probability that the same number shows up on both dice?
Quadratic Functions and Graphs
If (x-6)(x+4) = 0, find the value of 5x+4 when x > 0.
Ratio and Rates
A motorist covers 3km in 4 minutes. What is his average speed in metres per second?
Rational Functions
Is 3 a rational number?
Real number system
Express 75882 to three significant figures.
Relations and Functions
Find the equation of the line which passes through the points (-2,7) and (2,-3).
Rigid Motion
The point P(-3,4) is reflected in the line x+2 = 0. Find the co-ordinates of the image of P.
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