If the roots of the quadratic equation hx2 + 21 x + 10 = 0 where h ≠ 0 are in the ratio 2:5, find the possible values of h.

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.