(plz me)a blueprint for a room has a scale of 1 inch to 4 feet. on the blueprint, one wall measures 8 inches in length. if l represents the length of the actual wall, what is l? a. 4 ft. b. 8 ft. c. 16 ft. d. 32 ft.

d 32 ft

Step-by-step explanation:

multiply 8 and 4

mrbilldoesmath!

answer: a parabola

steps:

(x-1)(x+4)   = x(x+4) - 1(x+4) = (x^2 + 4x) - (x+4)

                = x^2 +4x -x -4   = x^2 +3x -4

which is a parabola

mrb

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.