Answer:
c(x) = –8x^2 + 3x – 5 is a quadratic
Step-by-step explanation:
A quadratic function involves the 2nd power of x: x^2, and may (or may not) involve the 1st and zeroth power of x.
a(x) = -2x^3 is not a quadratic because of that exponent 3; in a quadratic, the highest power is always 2.
b(x) = 5x^3 + 8x^2 + 3 is not a quadratic for the same reason that a(x) is not a quadratic.
c(x) = –8x^2 + 3x – 5 is a quadratic: the highest power of x is x^2, the other powers are x^1 and x^0.
if u mean what i think u mean the angles are the following...
acute
obtuse
right
straight!
x^4 + 7x^3 - 2x^2 - 9x - 3 - (10/x+8)
−<span>5<span>√<span>5 is the correct answer
Hope this helped!</span></span></span>
