The correct answer would be 4x(2x+3)
It's 2/3 because you keep it, change it, flip it and that would make 5/6•4/5= 2/3
F(x) = x²-4x-5, quadratic function,
Domain (the values if x) is all real numbers.
To find range we should draw a graph or to write an equation in vertex form.
f(x) = x²-4x+4-4-5
f(x) = (x-2)²-9
Point (-2,-9) is the vertex of the parabola, and it is a minimum because a parabola has positive sign in front of x², so it is looking up. Minimum value of y =-9
Range(the values of y) is [-9, ∞)
<u><em>3.95(3) + 8.95b = 47.65</em></u>
<u><em>11.85 + 8.95b = 47.65</em></u>
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<u><em>Subtract 11.85 from both sides.</em></u>
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<u><em>8.95b = 35.8</em></u>
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<u><em>Divide 8.95 from both sides.</em></u>
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<u><em>b = 4</em></u>
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<u><em>Hugh bough 4 books.</em></u>
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Answer:7n+28
Step-by-step explanation: