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kherson [118]
3 years ago
8

Find the quotient: 8(cos275+ i sin275) / 16(cos180+ i sin180)

Mathematics
2 answers:
Afina-wow [57]3 years ago
6 0
I’m pretty sure your answer will be d
Art [367]3 years ago
5 0

the answer is D, you divide 8 by 16 you get 2 in below the division sign, cosine 180 is -1 , sine 180 is zero so the imaginary number cancels out leaving only -1 multiplied by 2 equals -2 then cosine and sine 95 equal negative the cosine and sine of 275 you take the negative sign common factor divide it by the negative sign of 2 and you get the answer is d

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Which equation represents a line that passes through (4,1/3) and has a slope of 3/4?
Alexxandr [17]

Answer:

\large\boxed{B.\ y-\dfrac{1}{3}=\dfrac{3}{4}(x-4)}

Step-by-step explanation:

The point-slope form of an equation:

y-y_1=m(x-x_1)

m - slope

We have

m=\dfrac{3}{4},\ \left(4,\ \dfrac{1}{3}\right)

Substitute:

y-\dfrac{1}{3}=\dfrac{3}{4}(x-4)

7 0
3 years ago
Which is not Equivalent to 3:5 <br> A.30:50<br> B.21:28<br> C:15:28<br> D.9:15
kirza4 [7]

Answer:

B.

Step-by-step explanation:

Since 21 is divided by 3 you might think that it is equivalent but remeber you have to divide by both sides, so if you divide 21 by 7 it works but 28 by seven does not! Hope this helps!

3 0
3 years ago
f the principal is $350 and the interest rate is 3 percent, what is the simple interest earned in one year?
damaskus [11]

Answer:

$10.50

Step-by-step explanation:

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8 0
3 years ago
Howdy! Id love to have these questions answered asap! Thank you for the help!
tiny-mole [99]

Answer:

<em>1. B.</em>

<em>2. B.</em>

Step-by-step explanation:

<u>Trigonometry</u>

1) Coterminal angles can be found by adding or subtracting 360° (or 2\pi radians) to a given angle. If we have 120°, adding 360° gives 480°, adding again 360° gives 840°. There is no way to get -180°, so this option is not a coterminal angle to 120°

2)

A. Cos (-90^o)=0, and not undefined

B. Sin (-90^o)=-1. This is correct

C.  Tan (-90^o) is undefined, not zero

Thus the only correct option is B.

8 0
3 years ago
A patient ingests 5 grams of a certain drug which
IgorC [24]

Answer:

8 hours

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5 - 1 = 4 grams

10% of 5 = 0.5 grams per hour

4/0.5 = 8 hours

8 0
3 years ago
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