The product of two numbers is 21. if the first number is -3, which equation represents this situation and what is the second number? a. the equation that represents this situation is x − 3 = 21. the second number is 24. b. the equation that represents this situation is 3x = 21. the second number is 7. c. the equation that represents this situation is -3x = 21. the second number is -7. d. the equation that represents this situation is -3 + x = 21. the second number is 18.

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.

What is the t intercept of the line given by the equation below y= -10x + 14

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.