Type the correct answer in each box use numerals instead of words if necessary use / for the fraction bar . ab and bc form a right angle at their point of intersection , b . if the coordinates of a and b are (14,-1) and (2,1) respectively , the y-intercept of ab is and the equation of bc is y = __ x + __ . if the y-coordinate of point c is 13 , its x-coordinate is .

Which expression is equivalent to 2x^2+7x+4?

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?