Evaluate the expression e2ln 8 without using a calculator.
A.64
B.ln64
C.ln8
D.16
A right-angled triangle has shorter side lengths exactly and 2xy units respectively, where x and y are positive real numbers such that y is greater than x . Find an exact expression for the length of the hypotenuse.
A.
B.
C.
D.
Test the equation for symmetry to determine the correct graph.
A.
B.
C.
D.
An equation of the line passing through the points P (2 , 3) and Q (3 , 8) in the xy-plane is which one of the following?
A. y = −5x +13
B. y = 5x − 7
C. y = −5x + 23
D. y = x + 5
Which one of the following equations describes the circle in the xy-plane with centre P (−2 , 2) and radius 3 units?