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Setler79 [48]
3 years ago
15

y varies inversely with x. If x is 6.4 when y is 1.5, what is k, the constant of inverse variation? Round your answer to the nea

rest hundredth, if necessary.
Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
3 0
If y varies inversely with x, then we know that:

y = k/x

We are given x and y, so plug in the numbers and solve for k.

1.5 = k/6.4

k = 1.5*6.4

k = 9.6
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Write h(x)=x2-6x + 3 in vertex form
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Answer: The vertex form is h(x)=(x-3)^2-6

Step-by-step explanation:

Using the complete the square method, first complete any squares

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Which of these choices show a pair of equivalent expressions?
NISA [10]

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Step-by-step explanation:

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Algebra
vladimir2022 [97]
(2x + 3y = 12) x (-2)
(4x - 3y = 6) x 1

-4x - 6y = -24
4x - 3y = 6

You can cancel out the x values by adding the two equations together. 
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-9y = -18
y = 2

Solve for x now...
4x - 3(2) = 6
4x - 6 = 6
4x = 12
x = 3

Check... (x = 3, y = 2)
2(3) + 3(2) = 12 
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12 = 12 <- this works! 

4(3) - 3(2) = 6
12 - 6 = 6
6 = 6 <- this works!
5 0
3 years ago
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