3 years ago

What is the answer to this problem?

Mathematics

1 answer:

baherus [9]3 years ago

3 0

Answer: i say it is a

Step-by-step explanation:

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Express in rectangular form (7(cos 85 degrees + isin 85 degrees))x(2(cos 95 degrees + i sin 95 degrees))

asambeis [7]

After carefully looking over my notes and gathering all my knowledge of college mathematics, I can honestly say that I have no idea what the answer is.

5 0

3 years ago

What annual rate of interest would you have to earn on an investment of $3500 to ensure receiving $273.00 interest after 1 year?

kogti [31]

To find the answer, we will have to find the percentage of $273 to $ 3500, and we can use the formula:

$\frac{interest received}{investment amount} \times 100%$

In this case:

273/3500 x 100%

=39/500 x 100%

=7.8%

Therefore the annual interest rate would be 7.8%.

Hope it helps!

8 0

3 years ago

Divide 1 hour in the ratio 1 : 9 : 10

olganol [36]

Answer:

3 minutes; 27 minutes; 30 minutes

Step-by-step explanation:

Let the common multiplier of the given ratios be x. So, the ratios 1: 9 : 10 will become x, 9x and 10x respectively.

Therefore,

$x + 9x + 10x = 1 \: hour \\ \\ 20x = 60 \: minutes \\ \\ x = \frac{60 \: minutes}{3} \\ \\ x = 3 \: minutes \\ \\ 9x = 9 \times 3 = 27 \: minutes \\ \\ 10x = 10 \times 3 = 30 \: minutes$