will give brainliest, thanks in advance!!

Will Give Brainliest, Thanks In Advance!!

Answers

Answer 1

Answer:

-3+15i

Step-by-step explanation:

Apply complex arithmetic rule: [tex]\left(a+bi\right)\left(c+di\right)=\left(ac-bd\right)+\left(ad+bc\right)i[/tex]

[tex]\left(-3\cdot \:3-3\left(-2\right)\right)+\left(-3\left(-2\right)+3\cdot \:3\right)i[/tex]

-3 * 3 -3 (-2) = -3

[tex]-3+15i[/tex]


Related Questions

PLEASE HELP I NEED TO TURN THIS IN RIGHT NOW

James measures the water level from the top of a dock twice a day. The water level in the
morning is -2 feet. The water level in the afternoon is -6.5 feet. Which statement about the
relationship between the two measurements is true?
A. A water level of -6.5 feet is higher than a water level of -2 feet, as -6.5 > -2.
B. A water level of -2 feet is lower than a water level of -6.5 feet, as -2>-6.5.
C. A water level of -6.5 feet is the same as a water level of -2 feet, as -6.5 = -2.
D. A water level of -2 feet is higher than a water level of -6.5 feet, as -2> -6.5.

Answers

Answer:Letter D

Step-by-step explanation:If James is measuring the water level in the morning and it’s -2 feet and the water in the afternoon is -6.5 -2 is closer to the dock than -6.5 so it’s greater than -6.5 feet.

It’s D!!!!!!!!!!!!!!!!!!!!!

On a car trip , the number of miles driven , m , is proportional to the number of gallons of gas used , g , as shown in the table

Answers

Answer:

  m = 32g

Step-by-step explanation:

The proportion between m and g can be written ...

  m = kg

where k is the constant of proportionality.

__

We can find its value by dividing by g:

  k = m/g

Using any pair of corresponding values from the table, we find ...

  k = 64/2 = 32

The relationship between m and g can be expressed by the equation ...

  m = 32g

Arlo researched the starting salaries at the different companies that he applied to. Here is the data he found:

$24,640
$26,740
$23,620
$25,520
$24,710
$25,180
$25,520
$24,750
$24,710
$23,860

Find the mean, median, and mode of the data set. Show your work. (10 points)

Answers

Step-by-step explanation:

median -> $24.710+$25.180=$49.89

$49.98÷2=$24.945

mode -> $25.520 and $24.710

mean -> $24.640+$26.740+$23.620+$25.520+$24.710+$25.180+$25.520+$24.750+$24.710+$23.860= $249.25

$249.25÷10=$24.925

mean (add all your numbers together and then divide them by how many they are, here there are 10 numbers)

median (the middle one, if there are 2 in the middle, then you'd add those two numbers together and then divide by two)

mode (the number you see the most, mode *most*)

I hope all this helped, this took time. Take care!

PLEASEEE HELPPPP !!!!!!!!!!!!!!!!!!!!

Answers

Answer:

17.35

Step-by-step explanation:

All all divide by how many there were

Answer:

17.35

Step-by-step explanation:

Find the mean by adding all the numbers up and dividing by the amount of numbers in the data set

Which of the binomials below is a factor of this trinomial?
x2 + 6x-40

A. x2 + 10
B. X+6
C. *- 6
D. X-4

Answers

Answer:

D. x - 4

Step-by-step explanation:

(x - 4)(x + 10)

= x^2 + 6x - 40

A factor is something that multiplies together with something else to get a product. Here the factors are binomials and the product is a trinomial.

read the picture please

Answers

Answer:

$49.90

Step-by-step explanation:

Thats what i got :)

Wow some people get PAID to babysit ?!!? XD

From a circular cylinder of diameter 10 cm and height 12 cm are conical cavity of the same base radius and of the same height is hollowed out. Find the volume and the whole surface of the remaining solid.
[tex](take \ \: \pi \: = 3.14) [/tex]


Answers

Volume of the remaining solid = 628 cm^2

Whole surface area = 659.4 cm^2

Step-by-step explanation:

Now, Given that:-

Diameter (d) = 10 cm

So, Radius (r) = 10/2 = 5cm

Height of the cylinder = 12cm.

[tex]volume \: of \: the \: cylinder \: = \pi {r}^{2} h[/tex]

[tex] = > \pi \times {5}^{2} \times 12 {cm}^{3} = 300\pi {cm}^{3} [/tex]

Radius of the cone = 5 cm.

Height of the cone = 12 cm.

[tex]slant \: height \: of \: the \: cone \: = \sqrt{ {h}^{2} + \: {r}^{2} } [/tex]

[tex] = > \sqrt{ {5}^{2}+{12}^{2} } cm \: = 13cm[/tex]

Volume of the cone = 1/3 *πr^2h

[tex] = > \frac{1}{3} \pi \times {5}^{2} \times 12 {cm}^{3} = 100\pi {cm}^{3} [/tex]

therefore, the volume of the remaining solid

[tex] = 300\pi {cm}^{3} - 100\pi {cm}^{3} \\ = 200 \times 3.14 {cm}^{3} = 628 {cm}^{3} [/tex]

Curved surface of the cylinder =

[tex]2\pi \: rh \: = 2\pi \times 5 \times 12 {cm}^{2} \\ = 120\pi {cm}^{2} .[/tex]

[tex]curved \: surface \: of \: the \: cone \: = \pi \: rl \\ = \pi \times 5 \times 13 {cm}^{2} \\ = 65\pi {cm }^{2} \\ area \: of \: (upper)circular \: base \: \\ of \: cylinder \: = \\ = \pi \: {r}^{2} = \pi \times {5}^{2} [/tex]

therefore, The whole surface area of the remaining solid

= curved surface area of cylinder + curved surface area of cone + area of (upper) circular base of cylinder

[tex] = 120\pi {cm}^{2} + 65\pi {cm }^{2} + 25 \pi {cm}^{2} \\ = 210 \times 3.14 {cm}^{2} = 659.4 {cm}^{2} [/tex]

Hope it helps you!!

Fifteen of the 25 students in the class are boys what percent of the students are boys

Answers

Answer:

60%

Step-by-step explanation:

15 of the 25 students are boys

number of boys over the total number of students in the class multiplied by 100% gives the percentage of boy students in the class

=15/25 ×100%

=60%

Mikayla drew 20 triangles and 25 circles on a piece of paper. What is the ratio of circles to triangles?

(no scams please!!)

Answers

Answer:

25/20 or 25:20 ( doesn't matter which)

Step-by-step explanation:

Circles :25

triangles :20

Answer:

25:20 or 5:4

Step-by-step explanation:

The ratio is the circle:triangle

Plug in the values.

25:20 = 5:4

There are 40 students in a class and 95% of these students passed their Chemistry text. What number of these students passed their test? Round you answer to the nearest whole number if necessary.
(Please answer, I will mark brainliest!)​

Answers

Answer: 38 students

Step-by-step explanation:

     To answer this question we will find 95% of 40. Keep in mind that a percent divided by 100 becomes a decimal.

95% / 100 = 0.95

0.95 * 40 = 38

         38 students passed their test.

Given the functions below, find f(2)-g(-7).

Will give brainliest :))

Answers

Answer:

49

There u go :)

Answer:

Given the functions below, f(2) - g(-7) is -34.

Step-by-step explanation:

f(2) - g(-7)

First solve f(2).

f(x) = -|3 - 8x|

Substitute variable.

f(2) = -|3 - 8(2)|

Multiply.

f(2) = -|3 - 16|

Subtract 16 from 3.

f(2) = -|-13|

Apply absolute value.

f(2) = -13

Now solve g(-7).

g(x) = x² + 4x

Substitute variable.

g(-7) = (-7)² + 4(-7)

Raise -7 to the second power.

g(-7) = 49 + 4(-7)

Multiply 4 and -7.

g(-7) = 49 - 28

Subtract 28 from 49.

g(-7) = 21

Now with those values, lets go back to our original equation.

f(2) - g(-7)

Substitute known values.

-13 - 21

Subtract 21 from -13.

-34.

Help me PLEASE. Im not smart T>T

Answers

Answer:

3 is D

4 is F

Step-by-step explanation:

Just multiple the numbers together

A business may discriminate against a worker based on their nation of origin f t

Answers

Businesses are not to discriminate against their workers based on their nation of origin, but can discriminate based on age.

What is Age Discrimination for a Job ?

Discrimination can simply be defined as favoring one person over another based on certain criteria or biases.

In almost all businesses, the law stipulates that certain criteria such as nation of orgin, race, disability among others should not be used against an indivdual. However, for age, certain age limit are permitted to be used by businesses to select employees.

Therefore, all business can discriminate against a worker using age.

Learn more about age discrimination on:

https://brainly.com/question/26408615

False:


A business may discriminate against a worker based on their nation of origin f t

No business are allowed to discriminate

help me please, i have no idea what im supposed to be doing and my teacher isnt much help so im hoping someone else can help me

Answers

Answer:

(4, 2 ) and (2, 4 )

Step-by-step explanation:

xy = 8 → (1)

y = - x + 6 → (2)

substitute y = - x + 6 into (1)

x(- x + 6) = 8

- x² + 6x = 8 ( subtract 8 from both sides )

- x² + 6x - 8 = 0 ( multiply through by - 1 )

x² - 6x + 8 = 0 ← in standard form

(x - 4)(x - 2) = 0 ← in factored form

equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x - 2 = 0 ⇒ x = 2

substitute these values into (2) for corresponding values of y

x = 4 : y = - 4 + 6 = 2 ⇒ (4, 2 )

x = 2 : y = - 2 + 6 = 4 ⇒ (2, 4 )

y=9x^2+162x+725 Complete the square to re-write the quadratic function in vertex form

Answers

Y=9x^2+162x+725 the answer to your question

Help me please rjdjfhdhdbdbdbdbdb

Answers

Answer:

[tex]1609.1 m^{3}[/tex]

Step-by-step explanation:

The area of a triangle is 1/2 base * height.

The base of one side is 13, and the height is 30.

30 * 13 = 390

390 / 2 = 195

Now, there are six of these triangle faces, so multiply that number by six.

195 * 6 = 1170

Now, just add the area of the base:

1170 + 439.1 = 1609.1

PLSSS HELP IF YOU TURLY KNOW THISS

Answers

Answer:

1/4

Step-by-step explanation:

1/4 is the answer for this problem

find the factors of 2x^3+x^2-13x+6.​

Answers

Answer: The factors would be 1 and 2.

Step-by-step explanation:

I hope that helps!! Please correct me if I am wrong and have a great day!!

Use elimination to solve the system. The solution is ( , ). 3x+1/2y=3 6x-y=2

Answers

Answer:

x=13/33 and y=12/33

Step-by-step explanation:

x=13/33 and y=12/33

James bought a new TV. He made an initial payment of $40 to the store, and he

will pay $20 each month until the TV is paid off. Which equation represents the

relationship between x, the number of payments James has made, and y, the

total amount that James has paid the store?

-

A: y-40x+20

B: y-20

C: y - 20x-40

D: y-20x+40

Answers

Answer:

C   y  =  20x +40

Step-by-step explanation:

I think there is a typo in your question

monthly payment total   = 20 x

 total paid so far = 40 + 20x

y = 20x + 40

 

Write an equation for the line that is parallel to the given line and that passes though the given point

Answers

y = 4x -21  (again cool name btw) :)

y=4x-3 has slope = to the coefficient of the x term = 4

all parallel lines have the same slope.

y=4x + b, where b can be any real number, so just plug in the point (4,-5) into the general equation

y=4x+b = -5 = 4(4) + b

-5 = 16 + b

-21 = b

b = -21 = the y intercept, so the equation is

y=4x -21

The sum of two numbers is 41. Double the first number reduced by triple the second

number is 12. What are the two numbers?

Answers

x+y=41
2x-3y=12

27+14=41
2•27-3•14=12

x=27
y=14

solve for w and y
w=
y=​

Answers

Answer:

w = 45

y = 45

Step-by-step explanation:

im really sorry if i got it wrong i just want to help

A 64-ounce bottle costs $3.45. What is the cost per ounce? Round answer to the nearest cent.

Answers

Answer:

$0.05

Step-by-step explanation:

3.45 divided by 64


Write down the bearing direction of ES in angle.

Answers

Answer:

045°

Step-by-step explanation:

[tex]135 - 90 = 45[/tex]

it is not 82 accidentally clicked it

Answers

Hi!

Your answer is 52.

To start off, let's start with some facts that will help us solve this:

Supplementary angles are two angles whose angle measures add up to 180 degrees. You can know that they are supplementary because they can be connected by a straight line.

Triangles (all of them) have angles that add up to 180 degrees.

We can start by using supplementary angles to solve. See where the angle of 67 degrees is? The one to the right of it is supplementary to it since they are on a straight line. That means their sum adds up to 180 degrees:

[tex]67 +?=180[/tex]

[tex]?=113[/tex]

That angle is 113 degrees.

Now, we have 2 out of 3 angles in the triangle. Since we know that triangles' angles add up to 180 degrees, we can make an equation:

[tex]15+113+x=180[/tex]

[tex]128+x=180[/tex]

[tex]x=52[/tex]

Therefore, x is equal to 52.

what is the area of a 14cm square?

Answers

Answer:

The area would be 196 cm or 1.96 meters.

Step-by-step explanation:

Since it is a square, all of the sides are the same length.

So we do 14*14 to find the area.

14*14 = 196

So the answer is 196 cm or 1.96 meters.

find the angle between unit vector I and a=√3i+j

Answers

Recall that for two vectors x and y,

x • y = ||x|| ||y|| cos(θ)

where θ is the angle between them.

We have

i • (√3 i + j) = √3

||i|| = 1

||√3 i + j|| = √((√3)² + 1²) = √4 = 2

Solve for θ :

√3 = 2 cos(θ)

cos(θ) = √3/2

θ = arccos(√3/2) = π/6

(Note that we assume θ is the acute angle between the vectors.)

If you spend a spinner and toss a Penny what is the probability of getting gray and heads?

Answers

Answer:

The probability of getting gray = no. of gray shades / total

=> 2/7

The probability of getting head when we toss a penny = head / total ( head + tail )

=> 1/2

please help mee


Part A: If (2^6)x = 1, what is the value of x? Explain your answer. (5 points)

Part B: If (5^0)x = 1, what are the possible values of x? Explain your answer. (5 points)

Answers

(2^6)^x=1
(4)^x=1
(4)^0=1
1=1
X=0

(5^0)^x=1
(1)^x=1
x=(-∞,∞)

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