In the right triangle below, tana = 0.45. what is the approximate length of ab?
10 units
13 units
20 units
22 units

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm