Answer:
X<9
Step-by-step explanation:
-2(x-4)>-10
-2x+8>-10
-2x>-18
x<9, the sign flips since you are dividing with a negative
The answer is four
See my handwritten problem worked out in attached pic
See the file attached (photo) above - That is the graph for (-(8*x))+15
Graph the line using the slope and y-intercept, or two points.
Slope: −8
y-intercept: (0,15)
x y
0 15
1 7
#CarryOnLearning
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<em><u>→</u></em><em><u>X</u></em><em><u>x</u></em><em><u>K</u></em><em><u>i</u></em><em><u>m</u></em><em><u>0</u></em><em><u>2</u></em><em><u>x</u></em><em><u>X</u></em></h3>
A.) P(t) = 130t - 0.4t^4 + 1200
The population is maximum when P'(t) = 0
P'(t) = 130 - 1.6t^3 = 0
1.6t^3 = 130
t^3 = 81.25
t = ∛81.25 = 4.3 months.
Maximum population P(t)max = 130(4.3) - 0.4(4.3)^4 + 1200 = 1,622
b.) The rabbit population will disappear when P(t) = 0
P(t) = 130t - 0.4t^4 + 1200 = 0
t ≈ 8.7 months