3 years ago

Find last year's salary if, after a 5% pay raise, this year's salary is $36,750?

Mathematics

1 answer:

postnew [5]3 years ago

4 0

Answer:

36750*5%

then minus the answer from the present salary that was last year's salary

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(20 points)Solve the equation cos x = sin (x + 22)

Law Incorporation [45]

Answer:

$\bold{x = 34^\circ}$

Step-by-step explanation:

Given:

$cos x = sin (x + 22^\circ)$

To solve:

The given equation.

Solution:

First of all, let us consider an important property of sine and cosine.

$sin(90^\circ-\theta )=cos\theta$

$cos(90^\circ-\theta )=sin\theta$

We can apply above property to solve for $x$ as per given equation.

$cos x = sin (x + 22^\circ)$

Changing $cosx$ to sine form:

$cosx=sin(90^\circ-x)$

$cosx=sin(90^\circ-x) = sin(x+22^\circ)$

$\therefore 90^\circ-x=x+22^\circ\\\Rightarrow 90^\circ-22^\circ=x+x\\\Rightarrow 2x=68^\circ\\\Rightarrow \bold{x = 34^\circ}$

So, solution to the equation $cos x = sin (x + 22^\circ)$ is:

$\bold{x = 34^\circ}$

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3 years ago

Write an expression that uses addition,subtraction, multiplication and division and only negative numbers that has the same valu

Assoli18 [71]

Answer:

1+1-1*1/1=1

Step-by-step explanation:

1+1-1*1/1=1

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4 years ago

(-1)\times (-(-2)) \times (-(-(-3))) \times (-(-(-(-4)))

Semenov [28]

Answer: the answer that I got was 24

Step-by-step explanation:

I hope it’s right and it helps!

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Simplify (7x10 to the 8 power ) ( 9x 10 to the 6 power)

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Answer:

Step-by-step explanation:

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3 years ago

Your teacher gives you a problem 6 divided by

anastassius [24]

6 divided by the number the teacher gave u lol

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