Which statement is true concerning the vertex and the axis of symmetry of g(x)=5x2−10x?
a) the function written in vertex form is g(x)=5(x−1)2−5. the vertex is at (1, –5) and the axis of symmetry is .
b )the vertex is at (1, –5) and the axis of symmetry is y = 1.
c) the vertex is at (0, 0) and the axis of symmetry is x = 1.
d) the vertex is at (0, 0) and the axis of symmetry is y = 1.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

answer:

24pi or letter c

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.