Simplify the given expression. 2(-36-3i)+(5+2i)(12-2i)

Answers

Answer 1

Answer:

-8+8i

Step-by-step explanation:

(-72-6i) + (60-10i+24i-4i^2)

(-72-6i) + (60+14i+4)

-72+64+8i

-8+8i


Related Questions

the ratio of men to women working for a company is 5 to 7. If there are 140 men working for the company, what is the total number of employees?

Answers

Answer:

196 women

Step-by-step explanation:

You can do cross multiplication

5/7=140/x

5*7=980

980=5*x

980=5x

196=x

HELP ME OUT PLEASEEEEEEEEEEEEEEEEE

Answers

The awnser is 5/8

hope that helps

A panel of 12 jurors needs to be selected from a group of 28 people. How many different compositions for the jury are possible?A. 479,001, 600.B. 18, 564.C. 41, 430, 393, 164, 160,000.D. 86, 493, 225.

Answers

Complete Question

A panel of 12 jurors needs to be selected from a group of 30  people. How many different compositions for the jury are possible?

A. 479,001, 600.

B. 18, 564.

C. 41, 430, 393, 164, 160,000.

D. 86, 493, 225.

Answer:

The correct option is D

Step-by-step explanation:

From the question we are told that

   The number of jurors to be selected is q = 12

   The total number of people available n =  30  

Generally the number of different compositions for the jury that is possible is mathematically represented as

         [tex]N = ^nC_q[/tex]

Here C stands for combination hence we are going to be making use of the combination function in our calculators  

        [tex]N = ^{30}C_{12}[/tex]

=>     [tex]N = 86,493,225[/tex]

please help asap question 1 *****

Answers

Answer:

(-6, 3)

General Formulas and Concepts:

Algebra I

Solving systems of equations by graphing

Step-by-step explanation:

Where the 2 lines intersect is the solution set for the systems of equations.

13,84,85 are the last ones please help

Answers

Answer:

49,36,85

Step-by-step explanation:

c in step 4 comes from step 3... 49+36

a and b in step 3 come from step 2... in the same (you've got a - b and then 7 squared - 6 squared, so a is 49 and b is 36

you should solve the answer for z not m pls

Answers

Step-by-step explanation:

we can factor out z

so that'll be

z((1/m)-(1/n))=1

divide by the value in parentheses on both sides

z=1/((1/m)-(1/n))

I can't tell if there's more the problem wants you to do. I could rewrite the equation on paper more easily, but I don't have one on hand

Answer: The answer is z=1/((1/m)-(1/n). Abhlnav, I'm sorry about not finding the answer to solve for z, and that’s the reason why you told me to solve for z not m to your algebraic expression to find the answer. Are you very good at mathematics, Abhlnav?

Step-by-step explanation:

What’s the answer
5 3/7 - 2 1/5

Answers

Answer:3.22

Step-by-step explanation:

Hope this helps

See attachment for math work and answer.

In a survey, of the voters support a particular referendum. If 40 voters are chosen at random, find the mean and variance for the number of voters who support the referendum.

Answers

This question is incomplete, the complete question is;

In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random,

find the mean and variance for the number of voters who support the referendum.

Answer:

a) The Mean is 22

b) Variance is 9.9

Step-by-step explanation:

Given that;

55% of the voters support a particular referendum p = 0.55

q = 1 - p = 1 - 0.55 = 0.45

sample size n = 40

a)

Mean = sample size n × p

Mean = 40 × 0.55

Mean = 22

Therefore the Mean is 22

b)

Variance = n × p × q

so we substitute

Variance = 40 × 0.55 × 0.45

Variance = 9.9

Therefore the Variance is 9.9

how do you find the area of a circle with only the height

Answers

Answer:

in geometry, a circle is the curve that forms the boundary of a disc. Curves, like lines, have zero width and thus zero area.

For some reason, this very simple thing doesn’t seem to be taught much - I certainly recall my maths teachers referring to the area of a circle instead of the area of a disc!

As you haven’t mentioned the radius of the circle, let us consider a generic circle of radius r, thus we want to find the height of a triangle whose area is πr².

Step-by-step explanation:

Which choice represents the expression below as a single exponential
expression?
7^3•7^6

Answers

If you are adding them together, the answer would be 7^9

If you are solving the problem, the answer would be 40,353,607

+87 points and guaranteed brainliest if you get it right :)
If 14x + 6 / 3 = -8 + 4x, what is the value of -3x^2 - 7? TYSM

Answers

the answer should be -10

The sales tax rate is 4%. If Miguel buys a silver coat rack priced at $594, how much tax will he pay?

Answers

Answer:

$319,000

Step-by-step explanation:

Round to the nearest hundreds place.



There are 324 kids at the County Fair. About how many kids are there?

Answers

nearest hundred place : 300

hope this helps

Answer:

300 kids

Step-by-step explanation:

Which ordered pairs are solutions to the equation 2x+9y=11

Answers

Answer:

Step-by-step explanation:

x:1 y:1 (1,1)

x:(-8) y:3 (-8,3)

x:(-17) y:5 (-17,5)

increasing or decreasing of x values equal to y coefficient

increasing or decreasing of y values equal to x coefficient

This values goes about infinity according to this formula

The points that lie on the given line are the solution of the line.

What is an equation of a line?

The equation y = mx + c is the general equation of any straight line where m is the gradient of the line and c is the y -intercept.

Given is an equation of a line 2x+9y = 11, we need to find its solution,

Since, the line is an infinite object it carries an infinite solution too.

When we plot the graph of this line, all the points lying on it will be the solution of the line.

Let say x = 0,

2(0)+9y = 11

9y = 11

y = 11/9

Therefore, (0, 11/9) is the solution of the equation,

Let say x = 1

2(1) + 9y = 11

y = 1

Therefore, (1, 1) is the solution of the equation,

Please check the graph attached.

Hence, the points that lie on the given line are the solution of the line.

Learn more about equations of the lines, click;

https://brainly.com/question/21511618

#SPJ3

What would be the answee

Answers

I honestly dont kno neva dun dat before

x - 2y = - 7:(.3), (-9, )

Answers

Answer:

{x,y}={1,−3}

Step-by-step explanation:

Theo wants to find the surface area and volume of a present he received

Answers

Answer:

So whats the question then ????

James had 568 books to put into 9 boxes. How many books were in each box? Where there any book left that needed another box? ​

Answers

Answer:

63

Step-by-step explanation:

yes when dividing it's a round off number so that means that there's more left over

help plz!!!! its urgent

Answers

2,3

1,1.5

maybe, hope this helps

Determine the expression

Answers

trinomial and i believe its a degree of 4

the expected values of two television sets are predicted as follows.(help a sis out)

Answers

Answer:

The graph of g(x) has a lesser y intercept

Step-by-step explanation:

Given

f(x) = 100(-x + 4)

Required

Determine the relationship between f(x) and g(x)

First, we need to get the equation of g(x).

From the question, we have that:

Initial Value = 360

Rate = -90 yearly

[It is negative because the rate shows decrement]

Hence, the equation of g(x) is:

g(x) = Initial Value + Rate * x

Where x represents number of years

g(x) = 360 + (-90 * x)

g(x) = 360 - 90x

g(x) = -90x + 360

Recall that

f(x) = 100(-x + 4)

f(x) = -100x + 400

To solve y intercept, we set x = 0.

f(0) = -100 * 0 + 400 = 0 + 400 = 400

g(0) = -90 * 0 + 360 = 0 + 360 = 360

By comparison, the graph of g(x) has a lesser y intercept

To solve x intercept, we set y = 0

For f(x)

0 = -100x + 400

100x = 400

x = 4

For g(x)

0 = -90x + 360

90x = 360

x = 4

By comparison, they have the same x intercepts.

From the list of given options, option A answers the question.

How do you create zero pairs using algebra tiles? Add a positive unit tile to a negative unit tile. Add a positive unit tile to a positive unit tile. Add a negative x-tile to a negative x-tile. Add a negative x-tile to a positive unit tile.

Answers

Answer:

A:  Add a positive unit tile to a negative unit tile.

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

• The packages of henna powder cost $12 each and the squeeze
bottles cost $3 each. What is Sushmila's total cost for the supplies?

Answers

Answer:

Step-by-step explanation:

If she is just buying one henna package and one squeeze bottles the total is 12 + 3 which is 15

Answer:

27

Step-by-step explanation:

I got it right

Which line has a slope of 0?

Answers

Answer:

y= -5

Step-by-step explanation:

Answer:

y= -5

Step-by-step explanation:

What is the fourth term in a sequence defined by f(n) = 2n?

Answers

Answer:

8

Step-by-step explanation:

When we look at sequences, we have the function and we have the sequence, the sequence is f(x)... f(n)... or just f with any variable within a parenthesis right next to it.

What the variable signifies is the value that we will be replaced within the sequence, which is 2n in this case. So by your question, it we are looking for the fourth term, that means f(4) = 2n.  Since n is replaced with 4, we do the same with the sequence.

2(4)

Multiply

8

If ∠ + ∠ = 180° and ∠ ≅ ∠, what can you conclude about ∠ and ∠?

Answers

Answer:

both ∠=90

Step-by-step explanation:

180/2=90

How is making a table of equivalent ratios to find the unit rate similar to finding the unit rate by calculating with fractions? Use a specific example to explain your reasoning.

Answers

Using specific examples, the unit rate can be obtained using equivalent ratio tables and fraction thus :

Table of equivalent ratios :

No of workers : ____ 2 ____ 4 ____ 6 ____ 8

Logs of wood cut: __ 4 ____ 8 ____12 ____16

To obtain the unit rate from the table :

Take the ratio of any pair of values ;

16/8 = 2 logs of wood

Hence, the unit rate is 2 logs of wood per worker.

Using the fractions :

2 worker = 4 logs of wood

1 worker = x

Cross multiply

2x = 4

x = 4/2

x = 2 logs of wood.

Hence, the unit rate is 2 logs of wood per worker.

Learn more : https://brainly.com/question/25653997

x+1/x-4 times 5x/x+1

Answers

Answer:

Step-by-step explanation:

In a salad recipe, the ratio of carrots to cucumbers must remain constant. The table below shows some possible combinations of carrots and cucumbers.

Salad Ingredients
Carrots
Cucumbers
3
9
4
12
6
18
7
21

If only whole vegetables can be used, what is the fewest number of vegetables that can be used to make this salad?

Answers

9514 1404 393

Answer:

  4

Step-by-step explanation:

The ratio is ...

  carrots : cucumbers = 3 : 9 = 1 : 3

The fewest number of vegetables that can be used is 1 carrot and 3 cucumbers, a total of 4 vegetables.

Answer:

4

Step-by-step explanation:

Help I don’t understand this

Answers

Answer:

y = 12.5

Step-by-step explanation:

Notice these are similar triangles since they have angles of the same measure (congruent angles), then there must be a proportion among their sides such that:

[tex]\frac{y+5}{5} =\frac{14}{4}[/tex]

therefore by cross-multiplying, we get:

4(y + 5) = 14 * 5

4 y + 20  = 70

4 y = 70 - 20

4 y = 50

y = 12.5

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