What are the solutions of 2x2 + 3x = −5? (6 points)
the quantity negative 3 plus or minus i square root of 31 all over 4
the quantity negative 3 plus or minus 7i all over 4
the quantity negative 3 plus or minus i square root of 19 all over 4

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Is the power produced directly proportional to the wind speed, give reasons for your answer?