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anygoal [31]
3 years ago
11

1. Write using exponents. (–4)(–4)

Mathematics
1 answer:
AveGali [126]3 years ago
8 0
Exponents are used as a shorthand notation for repeated multiplication.
  (-4)(-4) = (-4)^{2}
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3 years ago
A, B, and C are collinear, and B is between A and C. The ratio of AB to BC is 1:4.
schepotkina [342]

Let point C has coordinates (x_C,y_C). Consider vectors

\overrightarrow{AB}=(x_B-x_A,y_B-y_A)=(8-9,6-9)=(-1,-3),\\ \\\overrightarrow{BC}=(x_C-x_B,y_C-y_B)=(x_C-8,y_C-6).

Since the ratio AB to BC is 1:4, you have that

\dfrac{-1}{x_C-8}=\dfrac{1}{4}\quad \text{and}\quad \dfrac{-3}{y_C-6}=\dfrac{1}{4}.

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Answer: C(4,-6)

7 0
2 years ago
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