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nadya68 [22]
3 years ago
10

If two lines are perpendicular, their slopes are negative reciprocals. A. True B.False

Mathematics
2 answers:
Ainat [17]3 years ago
8 0
A. If the slopes of two lines are negative then the reciprocals, of the lines are perpendicular.
igor_vitrenko [27]3 years ago
6 0
THE ANSWER IS TRUE I’M 100%
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Kirk's average driving speed is 7 kilometers per hour faster than Thor's. In the same length of time it takes Kirk to drive 450
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Answer:

x = 816 kilometers per hour.

Step-by-step explanation:

Given the following data;

Distance traveled by Kirk = 450km

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Translating the word problem into an algebraic equation;

k = x + 6

We know that the time taken to cover a distance by an object with speed is given by the formula;

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Substituting into the equation, we have;

408/x = 405/x + 6

Cross-multiplying, we have;

408*(x + 6) = 405*x

408x + 2448 = 405x

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3x = 2448

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