9x < -27 or 4x > 36
9 9 4 4
x < -3 x > 9
x ∈ (-∞, 3) or (9, ∞)
Answer:
B. (x + 3) (x + 27)
Step-by-step explanation:
<em><u>To factor the expression, you must split the middle term (18x) into two terms that can be added to get 18, and multiplied to get 81:</u></em>
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<em><u>Group:</u></em>
<em><u /></em>
<em><u>Take out GCF (Greates Common Factor):</u></em>
x(x + 3) 27(x + 3)
(x + 27) (x + 3)
Answer:
Step-by-step explanation:
(-6,-5) , ( 0,-1) , (-3 , -3) , (2 , 0 ) are solution of the inequalities.
The point that lies on the purple area and on the solid line are the solutions of the equations.
An applicable equation of a vertical parabola in vertex form is:
y-k = a(x-h)^2
Let x=2, y=4, h=-1 and k=-1, where (h,k) is the vertex. Then,
4-(-1) = a(2-[-1])^2, which becomes 5 = a(9). Therefore, a = 5/9, and the
equation of the parabola is
y+1 = (5/9)(x+1)
