Answer:
5+ 4x > 7, x > 1/2
Step-by-step explanation:
No 2 times 4 is 8 and 3 times 3 is 9, 8 plus 9 is not 33 it’s 17
x³ + 8x² + 11x - 20 ← the first on list
given the roots of a polynomial, say x = a, x = b and x = c
then the factors are (x - a), (x - b) and (x - c)
the polynomial is the product of the factors
f(x) = (x - a)(x - b)(x - c)
here x = - 5, x = - 4 and x = 1, hence factors are
(x + 5), (x + 4) and (x - 1)
f(x) =(x + 5)(x + 4)(x - 1) ← expanding factors gives
f(x) = (x² + 9x + 20)(x - 1) = x³ + 8x² + 11x - 20
12x-25+x-3=180
13x-28=180
13x=208
x=16
measure of arc DE: 167°
measure of arc EF: 14°
measure of arc DFG: 346°
