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3 years ago

Which of the following is the complex conjugate of the complex number below? 4+51i

1 answer:

5 0

Answer is C

The conjugate of the complex number a+bi is a-bi

you just reverse the sign of the imaginary part of the number ; so it is 4-51i

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Can someone please explain step by step on how I subtract fractions like for an a example!

kotykmax [81]

Keep the denominators the same and subtract the numerators. So for example in your example:

7/8 - 3/8

Leave the 8 alone. Subtract 3 from 7.

7 - 3 = 4

So answer is:

4/8

Sometimes they may have to simplify the answer, and in this case, 4/8 could be simplified to 1/2

3 0

3 years ago

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PLEASE HELP WITH GEOMETRY IM STUCK!?}

Ilya [14]

Answer:

13.8

Step-by-step explanation:

Recall the trigonometric ratios

Sine = Opposite over Hypotenuse (SOH)

Cosine = Adjacent over Hypotenuse (CAH)

Tangent = Opposite over Adjacent (TOA)

Now lets look back at the question

We are given an angle and its adjacent side length (11) and we need to find the hypotenuse

The hypotenuse and adjacent sides corresponds with the trig function cosine so we will use cosine to solve for x

( remember that cosine = adjacent over hypotenuse )

$cos(37)=\frac{11}{x}$

step 1 multiply each side by x

$cos(37)*x=xcos(37)\\\frac{11}{x} *x=11$

now we have $xcos(37)=11$

step 2 divide each side by cos(37)

$\frac{xcos(37)}{cos(37)} =x\\\frac{11}{cos(37)} =13.77349\\$

we're left with x = 13.77439

Our last step would be to round to the nearest tenth

We would get that the answer is 13.8

3 0

3 years ago

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Parallel lines intersect at an angle of 90. A. True B. False

Lisa [10]

False because there are no parrelell lines

8 0

3 years ago

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16 + 4(x)= -2<br> What is x?

borishaifa [10]

Answer:

x = -9/2

Step-by-step explanation:

16 + 4(x) = -2

4x = -2 - 16

4x = -18

x = -18/4

x = -9/2

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3 years ago

Use the following data set (6, 4, 4, 5, 1, 8, 10, 7, 8, 6, 6, 7, 5, 4, 6)

juin [17]

Mode is the number that shows the most so it would be 6

5 0

3 years ago

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