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Dafna1 [17]
3 years ago
5

Evaluate f(x) = -2x squared - 4 for x = 3

Mathematics
1 answer:
damaskus [11]3 years ago
7 0
f(x)=-2x^2-4;\ \text{for}\ x=3\\\\\text{substitute:}\\\\f(3)=-2\cdot3^2-4=-2\cdot9-4=-18-4=-22
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3 years ago
Betty's grade in science class is affected by the number of missing assignments. The table below shows the science grade percent
Angelina_Jolie [31]

Hi!

y=-5x+95

<em>Plug in </em>15 for x

y=-5(15)+95

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-------------------------------------------------------------------------------------------------------------

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2 years ago
For the vectors u = ⟨2, 9⟩, v = ⟨4, –8⟩, and w = ⟨–12, 4⟩, what is u + v + w? ⟨6, 1⟩ ⟨6, 5⟩ ⟨-6, 5⟩ ⟨-6, 21⟩
Levart [38]

Answer:

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Step-by-step explanation:

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