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goldfiish [28.3K]
3 years ago
9

Chandra earns $12.75 per hour at her job. How many hours will she have to work to earn $344.25

Mathematics
1 answer:
natali 33 [55]3 years ago
6 0
She gotta work 27 hours cuz 344.24/12.75
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Simplify the expression.<br> -5+i /2i
Andrei [34K]

Answer:

\frac{1+5i}{2}

Step-by-step explanation:

We know i×i=i^2 which has value of -1.

We will multiply numerator and denominator by i so the denominator will no longer contain imaginary part(s).

Also multiplying by i/i does not change the value of the fraction because i/i=1.

Numerator × i gives (-5+i)i=-5i+i^2=-5i-1

=-1-5i.

Denominator × i gives (2i)i=2i^2=-2.

So the simplified version of this fraction given is:

\frac{-1-5i}{-2}=\frac{1+5i}{2}

The last simplification come from me multiplying fraction by -1/-1.

6 0
3 years ago
Our answer should be a complex number in the form a +bi where a and b are real numbers.
Otrada [13]

Answer:

16 +88i

Step-by-step explanation:

8 x (11i + 2 ) =

Distribute

8*11i + 8*2

88i +16

Writing in the proper form

16 +88i

6 0
3 years ago
Rewrite in simplest rational exponent form √x • 4√x. Show each step of your process.
Studentka2010 [4]
I like to think of radicals (or square roots) just as x terms-
here, we have the equivalent (kind of) to x * 4x. 
Since these are both x terms and 4x= x*x*x*x, we can simply write 5x.

Im not sure what your teacher is asking you to communicate, but most simply would like to see evidence that you understand the material rather than simply looking up the answer... (i mean without reading an explanation xD)
4√x= √x*√x*√x*√xso √x • 4√x =5√x
5 0
3 years ago
2x-3y=42 solve for y
PtichkaEL [24]

Answer:

y=14+(2/3x)

Step-by-step explanation:

Your main goal is to get Y by itself on one side.

To start subtract 2x from both sides. This will give you -3y=42-2x.

Then you divide both sides by -3 to get Y by itself.

That will leave you with ...

y=14+(2/3x)

(remember the negatives cancel each other out)

5 0
3 years ago
Read 2 more answers
If you run 6. Miles an hour how long will it take to do 18 miles help quick pls
lys-0071 [83]
18miles/6mph = 3hrs
3 hours
6 0
3 years ago
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