The graph of the function f(x) = -3x² – 3x + 6 is shown. Which statements describe the graph? Select three options. The vertex is the maximum value.
The axis of symmetry is x= -1/2
The domain is all real numbers
The function is decreasing from (-infinity,6.75)

the answer is a

step-by-step explanation:

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

the answer is 62.8 cubic units

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.