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2 years ago

Please help me answer this question mathematicians

Mathematics

1 answer:

Damm [24]2 years ago

6 0

Answer:

6.5e^(i·(-157.38°)) ≈ 6.5e^(-2.7468i)

Step-by-step explanation:

A suitable calculator can find the value of this ratio for you.

((2+3i)/(1-i))² = -6 -2.5i ≈ 6.5∠-157.38° ≈ 6.5e^(-2.7468i)

The second attachments shows the calculator set to radian mode for the angle measure.

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Q5. A car is bought for £5000 and sold for £7500.<br> What is the percentage profit?

Nitella [24]

Answer:

50% profit

Step-by-step explanation:

Cost price = £ 5000

Selling price = £ 7500

Profit = Selling price - cost price

= 7500 - 5000

= £ 2500

Profit percentage = $\frac{2500}{5000}*100$

= 50 %

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3 years ago

Kim wants to put a small fence in the shape of a circle around a tree in her backyard. She wants the radius of the circle to be

skelet666 [1.2K]

In this case, you first need to think about what is the formula for the circumference of a circle. <span>The formula for the circumference of a circle is 2 * PI * r, where r is the radius of the circle, and PI is the mathematical constant approximately equal to 3.14.

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3 years ago

Round 75.4614 to the nearest thousandth

Anna11 [10]

$75.4614\approx75.461$

6 0

3 years ago

HELP HELP HELP

Law Incorporation [45]

Based on her results, if she flipped the coins another 50 times, she should expect to flip heads 20 times. If Jessica flips a coin 100 times and gets 40 times heads and the next time she flips a coin 50 times she should get 20 because, 100 divide 2 is 50 so you would have to divide 40 with 2 and get the answer of 20.

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3 years ago

0.572 repeating as a fraction

valentinak56 [21]

572/1000, or 143/250.

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3 years ago