2 years ago

If y is inversely proportional to x and y=−54 when x=38, find y if x=30. (Round off your answer to the nearest hundredth.)

Mathematics

1 answer:

lys-0071 [83]2 years ago

3 0

Answer:

-68.4

Step-by-step explanation:

answer explained on the photo !

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ludmilkaskok [199]

Answer:

f = .39

Step-by-step explanation:

d (v) = 2.15 v^2 / (64.4 f)

v = 40

d = 138

substitute these in

138 = 2.15 (40)^2 / (64.4 *f)

simplify

138 = 2.15 (*1600) / (64.4 *f)

138 = 3440 / (64.4 *f)

multiply each side by 64.4f

138 * 64.4 f = 3440

8887.2 f = 3440

divide by 8887.2

8887.2 f /8887.2= 3440/8887.2

f=.38707

to the nearest hundredth

f = .39

8 0

3 years ago

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How can I subtract 9 2/5 - 8 4/5

monitta

Answer:

0.6

Step-by-step explanation:

First make them into decimals so.

9.4 - 8.8 = 0.6

7 0

3 years ago

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Last week, 24% of the campers at a state park were visiting from out of state. This week, an additional 12% are from out of stat

victus00 [196]

63 because 24 + 12= 36 and 36% of 175 is 63

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3 years ago

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If x6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the

lys-0071 [83]

Answer:

The discriminant is equal to zero

Step-by-step explanation:

If x=6 is the only x-intercept of the graph of a quadratic equation, the it means the quadratic equation has a repeated root.

When a quadratic equation has a repeated root, it means its discriminant is zero.

This means that

${b}^{2} - 4ac = 0$

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3 years ago

If any of you guys can help it would be greatly appreciated this is due tomorrow

alexgriva [62]

Answer:

x =4

Step-by-step explanation:

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2 years ago