Chegg exercise 3. 2. 1: sets of sets - true or false. About let x = {1, {1}, {1, 2}, 2, {3}, 4 }. Which statements are true?.

choice b

step-by-step explanation:

f(x) = 88x^2 -264x + 300

the line of symmetry of a parabola is defined by

h = -b/2a

where ax^2 +bx+c=0

so

h = - -264/ (2*88)

h = 3/2

so x = 1.5

4.28095238095 that is the answer

y = -1

x = 8

hope this !

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost