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3 years ago

Write an equation for “the value of m times the value of n”

Mathematics

1 answer:

NeX [460]3 years ago

7 0

Answer:m(n)

Step-by-step explanation:

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A city has a population of 230,000 people. suppose that each year the population grows by 3.5% . what will the population be aft

Georgia [21]

230000÷3.5%=6571%
6571%*15=9857%(be after 15 years)

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4 years ago

Please help, thanks!

garri49 [273]

Answer:

Step-by-step explanation:

That is the correct answer

that is correct

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3 years ago

What is the answer to this?

dsp73

X=2 here’s why 90-32 is 58. 29x=58 then x is 2

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2 years ago

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Can you help me with 3.672 ÷ 7.5

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Answer:

0.4896

Step-by-step explanation:

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4 years ago

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Find the multiplicative inverse of 3 − 2i. Verify that your solution is corect by confirming that the product of

leonid [27]

Answer:

$\frac{3}{13} + \frac{2i}{13}$

Step-by-step explanation:

The multiplicative inverse of a complex number y is the complex number z such that (y)(z) = 1

So for this problem we need to find a number z such that

(3 - 2i) ( z ) = 1

If we take z = $\frac{1}{3-2i}$

We have that

$(3- 2i)\frac{1}{3-2i} = 1$ would be the multiplicative inverse of 3 - 2i

But remember that 2i = √-2 so we can rationalize the denominator of this complex number

$\frac{1}{3-2i } (\frac{3+2i}{3+2i } )=\frac{3+2i}{9-(4i^{2} )} =\frac{3+2i}{9-4(-1)} =\frac{3+2i}{13}$

Thus, the multiplicative inverse would be $\frac{3}{13} + \frac{2i}{13}$

The problem asks us to verify this by multiplying both numbers to see that the answer is 1:

Let's multiplicate this number by 3 - 2i to confirm:

$(3-2i)(\frac{3+2i}{13}) = \frac{9-4i^{2} }{13} =\frac{9-4(-1)}{13}= \frac{9+4}{13} = \frac{13}{13}= 1$

Thus, the number we found is indeed the multiplicative inverse of 3 - 2i

4 0

3 years ago