dianacastro8298

27.08.2020 • 

Mathematics

A) At a particular gas station, the cost of a gallon of gas, in dollars, is a function of its octane. Explain the meaning of f(87). b) When John is driving to school, the distance traveled, in miles, is a function of time, in minutes. Explain the meaning of s(26).
a) Choose the correct answer below.
A.
f(87) is f times 87-octane gasoline.
B.
87 is the cost, in dollars, of one gallon of f(87)-octane gasoline.
C.
f(87) is f times the cost of a gallon of gas, in dollars.
D.
f(87) is the cost, in dollars, of one gallon of 87-octane gasoline.

Ответ:

jdaballer3009

16.07.2020

Mathematics

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(x^4 + x^3 + x^2 + x) - (x^4 - x^3 + x^2 -x)

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

2x^3 + 2x

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