The function f(x) = - 0.3x ^ 2 + 2.5x + 5 can be used to approximate the distance a thrown ball is from the ground, where x the distance between the ball and the person throwing the ball. the mathematical domain of the function is all real numbers

the reasonable domain the function is when less than or equal to what value?

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Which number line correctly shows 0.8 + 0.3?