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3 years ago

10. If log10x = 1 + a and log10y = 1 – a, show that xy = 100. How?

Mathematics

1 answer:

gregori [183]3 years ago

7 0

Step-by-step explanation:

log x = 1 + a

a = log x - 1

log y = 1 - a

a = 1 - log y

log x - 1 = 1 - log y

log x + log y = 2

log (xy) = 2

xy = 100

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Answer:

180

Step-by-step explanation:

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Then we have ...

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3 years ago

Find the equation of the line passing through the points (3,3) and (4,5). y = [? ]x +[ ?]

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3 years ago

Find the total amount of money (maturity value) that the borrower will pay back on a loan of $1 comma 760 at 13 and one half %

bagirrra123 [75]

Answer:

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Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E are the earnings, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

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In this question:

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$T = E + P = 2376 + 1760 = 4136$

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3 years ago

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pickupchik [31]

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3 years ago

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Answer:

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With the aid of the diagram attached below.

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