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3 years ago

If y = 7.2 when x = 10, what is the value of x when y = 20? (y varies inversely as the square of x.)

Mathematics

1 answer:

Sphinxa [80]3 years ago

4 0

The answer is 14.4.................................

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Teresa runs 3 miles in 25 minutes. At the same rate, how many miles would she run in 20 minutes?

Sedaia [141]

Answer:

2.4 miles

Step-by-step explanation:

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2 years ago

Brian invests £4000 into his bank account.

GuDViN [60]

Answer:

10.24 years

Step-by-step explanation:

The computation of the time period is as follows:

As we know that

Amount = Principal × (1 + rate of interest)^time period

£8000 = £4000 × (1 + 0.07)^time period

£8,000 ÷ £4,000 = 1.07^time period

2 = 1.07^time period

Now apply the log to the both sides

log 2 ÷ log 1.07 = time period

= 10.24 years

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3 years ago

What is the number form of 26.96 million?

Alik [6]

For example: 26 million = 26,000,000 and 0.96 million = 960,000.
Answer:
26.96 million = 26,960,000
Thank you.

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3 years ago

Use multiplication or division of power series to find the first three nonzero terms in the Maclaurin series for the function. (

Mrrafil [7]

Answer:

So, the first three nonzero terms in the Maclaurin series are:

$6, \, 27x^2, \, \frac{405x^4}{4}.$

Step-by-step explanation:

From exercise we have the next function y = 6 sec(3x).

We know that Maclaurin series for the function sec x, have the following form:

$\sec x=1+\frac{x^2}{2}+\frac{5x^4}{24}+...$

So, for the given function y = 6 sec(3x), we get:

$y = 6 \sec(3x)=6+27x^2+\frac{405x^4}{4}+...$

So, the first three nonzero terms in the Maclaurin series are:

$6, \, 27x^2, \, \frac{405x^4}{4}.$

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3 years ago

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barxatty [35]

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3 years ago