which functions has exactly one real solution A) f(x) = 2x²+4x-5
B) f(x) = -4x²+9x
C) f(x) = -3x² + 30x-75
D) f(x) = 6x² + 11

idk

step-by-step explanation:

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.