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Annette [7]
3 years ago
7

List the partial products of 42 x 28

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0
<span>The partial products are: 42 * 28 = (40 + 2)*(20 + 8) = 40*20 + 40*8 + 2*20 + 2*8 = 800 + 320 + 40 + 16

I really Hope this helps

please mark Brainliest</span>
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3 years ago
Write the complex number in polar form:
emmasim [6.3K]

9514 1404 393

Answer:

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Step-by-step explanation:

The modulus is ...

  √((-√30)² +(-3√10)²) = √(30 +90) = √120 = 2√30

The argument is ...

  arctan(-3√10/-√30) = arctan(√3) = -120° . . . . a 3rd-quadrant angle

The polar form of the number can be written as ...

  (2√30)∠-120°

_____

<em>Additional comments</em>

Any of a number of other formats can be used, including ...

  (2√30)cis(-120°)

  (2√30; -120°)

  (2√30; -2π/3)

  2√30·e^(i4π/3)

Of course, the angle -120° (-2π/3 radians) is the same as 240° (4π/3 radians).

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At least one app I use differentiates between (x, y) and (r; θ) by the use of a semicolon to separate the modulus and argument of polar form coordinates. I find that useful, as a pair of numbers (10.95, 4.19) by itself does not convey the fact that it represents polar coordinates. As you may have guessed, my personal preference is for the notation 10.95∠4.19. (The lack of a ° symbol indicates the angle is in radians.)

6 0
3 years ago
Which values of x and y will make this<br> quadrilateral a parallelogram?
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Answer:

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Step-by-step explanation:

5 0
3 years ago
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= [2+2cosx] / [sinx(cosx+1)]

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= 2/sinx

= 2 cscx

(I think this will be helpful for you. if you can see the picture, it has more detail in it.)

7 0
4 years ago
Find the GCF of the given polynomial.<br><br> 16a4b4 + 32a3b5 - 48a2b6
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16a^{4}  b^{4} +32 a^{3}  b^{5} -48 a^{2}  b^{6}
GCF=16a^{2}  b^{4}
6 0
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