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Ivanshal [37]
3 years ago
11

(1,4) (2,2) find the midpoint

Mathematics
1 answer:
Art [367]3 years ago
3 0
1,8 is the mid point of these two numbers
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Can someone please help me to solve this? ASAP<br> Please with explanation, no spam
snow_lady [41]

Answer:

<h2>which question dear..maybe you forgot to add the attachment...</h2>
7 0
3 years ago
9 x 3/9 is greater than less than or equal to 9?
Elena-2011 [213]

Answer:

9 x 3/9  is less than 9

Step-by-step explanation:

8 0
2 years ago
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Please Help!!<br><br>Use Euler’s formula to write in exponential form.
LekaFEV [45]

Answer:

C, 4e^{i(7\pi/4)}

Step-by-step explanation:

To remind you, Euler's formula gives a link between trigonometric and exponential functions in a very profound way:

e^{ix}=\cos{x}+i\sin{x}

Given the complex number 2\sqrt{2}-2i\sqrt{2}, we want to try to get it in the same form as the right side of Euler's formula. As things are, though, we're unable to, and the reason for that has to do with the fact that both the sine and cosine functions are bound between the values 1 and -1, and 2√2 and -2√2 both lie outside that range.

One thing we could try would be to factor out a 2 to reduce both of those terms, giving us the expression 2(\sqrt{2}-i\sqrt{2})

Still no good. √2 and -√2 are still greater than 1 and less than -1 respectively, so we'll have to reduce them a little more. With some clever thinking, you could factor out another 2, giving us the expression 4\left(\frac{\sqrt{2}}{2} -i\frac{\sqrt{2}}{2}\right) , and <em>now </em>we have something to work with.

Looking back at Euler's formula e^{ix}=\cos{x}+i\sin{x}, we can map our expression inside the parentheses to the one on the right side of the formula, giving us \cos{x}=\frac{\sqrt2}{2} and \sin{x}=-\frac{\sqrt2}{2}, or equivalently:

\cos^{-1}{\frac{\sqrt2}{2} }=\sin^{-1}-\frac{\sqrt2}{2} =x

At this point, we can look at the unit circle (attached) to see the angle satisfying these two values for sine and cosine is 7π/4, so x=\frac{7\pi}{4}, and we can finally replace our expression in parentheses with its exponential equivalent:

4\left(\frac{\sqrt2}{2}-i\frac{\sqrt2}{2}\right)=4e^{i(7\pi/4)}

Which is c on the multiple choice section.

4 0
3 years ago
Please Help ASAP!!<br> Round 287.9412 to the nearest tenth. Do not write extra zeros.
irinina [24]

Answer:

287.9

Step-by-step explanation:

4 or less let it rest 5 or more add one more

4 0
3 years ago
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Write a 5 digit number so that when you round to the nearest hundredth, your answer is 14.6. The number cannot include any zeros
MAVERICK [17]

Answer:

14.598

Step-by-step explanation:

When you round that number to the nearest hundredth, you'll get 14.6. Hope this helps.

3 0
2 years ago
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