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trapecia [35]
3 years ago
14

Evaluate z^2−3 z+4 , when z=−4

Mathematics
2 answers:
taurus [48]3 years ago
7 0
It should be -19

I got the answer by plugging it into Desmos scientific calculator.
Maru [420]3 years ago
6 0

Answer:

8

Step-by-step explanation:

=z²-3z+4 when z is 4

=4²-3(4)+4

=16-12+4

=8

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You got to remember
\frac{x^m}{x^n}=x^{m+n}

first write them in scienfitic notation
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so
\frac{0.00053}{29}=
\frac{(5.3)(10^{-4})}{(2.9)(10^1)}=
(\frac{5.3}{2.9})(\frac{10^{-4}}{10^1}=
(1.8275862068965517241379310344828)(10^{-4-1})=
(1.8275862068965517241379310344828)(10^{-5})=
1.8275862068965517241379310344828*10^{-5}

that's the answer
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