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3 years ago

Simplify the expression to a + bi form: (-8 – 9i)2

Mathematics

1 answer:

WINSTONCH [101]3 years ago

7 0

Answer:

-17+144i

Step-by-step explanation:

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The equation a company uses to

crimeas [40]

The equation solved for s is s = 4p - 48h

<em><u>Solution:</u></em>

Given that equation a company uses to calculate pay checks is p = 12h +0.25s

Therefore the given equation is:

p = 12h + 0.25s

Where "h" is the number of hours worked

"s" is the total sales

To find: equation for "s"

Let us solve the given equation for "s"

p = 12h + 0.25s

Now move 12h from R.H.S to L.H.S

p - 12h = 0.25s

Now move from 0.25 from R.H.S to L.H.S

$s = \frac{p-12h}{0.25}\\\\s = \frac{p}{0.25} -\frac{12h}{0.25}$

We know that, $0.25 = \frac{1}{4}$

$s = \frac{p}{\frac{1}{4}} -\frac{12h}{\frac{1}{4}}\\\\s = p \times \frac{4}{1} - 12h \times \frac{4}{1}\\\\s = 4p - 48h$

Thus the equation for s is s = 4p - 48h

5 0

3 years ago

Emil used 3/4 of a red bottle of paint and 1/5 of a blue bottle of paint in art class. how much paint did he use in all?

Dmitry [639]

First change the fraction to decimals or common denominators.
3/4 = 0.75 and 1/5 = 0.2
0.75 + 0.2 = 0.95 = 95/100 = 19/20

(3/4) = (15/20)
(1/5) = (4/20)
(15/20) + (4/20) = 19/20

7 0

4 years ago

Read 2 more answers

Answer with explanation please

Rasek [7]

Answer:

x = 8

Step-by-step explanation:

-4 + 8x = 6x + 12

Subtract 6x from both sides

-4 + 2x = 12

add 4 to both sides

2x = 16

x = 8

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0

3 years ago

How am I supposed to find ‘t’ here?

Softa [21]

You can solve for (T)

$y = - 16t {}^{2} + 400 \\ add \: both \: side \: by \: - 16t {}^{2} \\ - 16t {}^{2} = - 400 \\ divide \: both \: side \: by16 \\ t {}^{2} = - 25 \\ t = \sqrt{25} \\ t = 5 \\ \: also \: it \: can \: be \: - 5 \\ + - 5 \\ \\$

Hope this help :)

6 0

3 years ago

A movie theater sends out a coupon for % off the price of a ticket. Write an equation for the situation, where y is the price

natali 33 [55]

The orginal price is 65

5 0

3 years ago