Solve this system of equations using substitution: y = 2x - 4
x + 2y = 10

Step 1: Substitute for y in the second equation. Which is
the resulting equation? x + 2(2x - 4) = 10

Step 2: Which is the next step to solve for x?

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

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

f(y)= y^2-10y+25

step-by-step explanation: