3 years ago

1/4,7/10,1/4,6/10 least to greatest

Mathematics

1 answer:

Pepsi [2]3 years ago

7 0

Answer:

1/4, 1/4, 6/10, 7/10

Step-by-step explanation:

1/4 = 0.25

7/10 = 0.7

6/10 = 0.6

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Only blue and white vans are made at a factory. The ratio of the number of blue vans to the number of white vans is 4 : 3 write

amid [387]

Answer:

4/7

Step-by-step explanation:

Number of Blue vans = 4

Number of white vans = 3

Total number of vans = Number of Blue vans + Number of white vans

= 4 + 3

= 7 vans

Number of blue vans : Number of white vans = 4 : 3

Fraction of vans that are blue = Number of Blue vans / Total number of vans

= 4 / 7

Fraction of vans that are blue = 4/7

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3 years ago

Find the complex fourth roots \[-\sqrt{3}+\iota \] in polar form.

____ [38]

Let $z=-\sqrt3+i$ . Then

$|z|=\sqrt{(-\sqrt3)^2+1^2}=2$

$z$ lies in the second quadrant, so

$\arg z=\pi+\tan^{-1}\left(-\dfrac1{\sqrt3}\right)=\dfrac{5\pi}6$

So we have

$z=2e^{i5\pi/6}$

and the fourth roots of $z$ are

$2^{1/4}e^{i(5\pi/6+k\pi)/4}$

where $k\in\{0,1,2,3\}$ . In particular, they are

$2^{1/4}e^{i(5\pi/6)/4}=2^{1/4}e^{i5\pi/24}$

$2^{1/4}e^{i(5\pi/6+2\pi)/4}=2^{1/4}e^{i17\pi/24}$

$2^{1/4}e^{i(5\pi/6+4\pi)/4}=2^{1/4}e^{i29\pi/24}$

$2^{1/4}e^{i(5\pi/6+6\pi)/4}=2^{1/4}e^{i41\pi/24}$

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3 years ago

Which is smaller: 5 nanometers or 50 micrometers

lina2011 [118]

5 nanometers is smaller

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3 years ago

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4. The volume of the ball is 3052.08. What is its radius?

Olin [163]

Answer:

Step-by-step explanation:

v=4pi*r^3/3=3052.08

4*3.14/3*r^3=3052.08

4.2*r^3=3052.08

r^3=3052.08/4.2=726.7

so r ≈9

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3 years ago

What is the value of expression below if u=-5 and y=40

Eva8 [605]

Answer:

what expression

Step-by-step explanation:

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3 years ago