On Mars, gravity is less than it is on Earth. If you were to kick a Mars rock at an initial velocity of 38 feet per second, its height h would be modeled by the equation h = -1.9t^2 + 38t where t is time in seconds. 1. How long would the rock be in the air?

2. How high would the rock get?

3. How long after your kick would the rock be at its highest?​

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so