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stiks02 [169]
3 years ago
13

If y=(sec^-1x)^2, then show that x^2(x^2-1) d^2y/dx^2 + (2x^3 - x) dy/dx = 2

Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Step-by-step explanation:

Hope it helps you in your learning process.

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3 years ago
Cell phone plan A costs 79 per month and comes with a free 500 phone. Cell phone plan B costs 50 per month but does not come wit
meriva

Answer: it will take 25 months

Step-by-step explanation:

Let x represent the number of months that it will take for the cost of both plans to be the same.

Cell phone Plan A costs $70 per month and comes with a free $500 phone. This means that the total cost of x months with plan A would be

70 × x = $70x

Cell phone plan B costs 50 per month but does not come with a phone. If you buy the 500 phone and choose plan B, then the total cost of x months with plan B would be

500 + 50 × x = 500 + 50x

To determine the number of months until your cost is the same as Plan A's, we would equate both costs. It becomes

70x = 500 + 50x

70x - 50x = 500

20x = 500

x = 500/20 =25

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Mason made a scale drawing of a rectangular herb garden. In the scale drawing, the garden was 10 inches long and 8 inches wide.
KatRina [158]

Answer:

The answer would be B. 500 ft


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3 years ago
What’s the geometric mean between 7 and 28 ?
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Read 2 more answers
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