simplify (4+i)(3-2i)

Answers

Answer 1

Answer: 14 - 5i

Step-by-step explanation:

Answer 2

Answer:

-10i+15 or 15-10i

Step-by-step explanation:

Use the cross multiply method

(4+1)(3-2i)

4x3=12

4x-2i=-8i

1x3=3

1x(-2i)=-2i

now we sum our similarities.

-10i+15


Related Questions

Determine the Theorem or Postulate that proves triangle
congruence. If the triangles cannot be proven congruent,
choose "not congruent."

Answers

Answer:

SSS theorem

Step-by-step explanation:

It is indicated in the image that 2 sides of the triangles are congruent, and the third side is shared, which makes the third side automatically congruent as well. Therefore, we can use the side-side-side theorem to prove that the triangles are congruent.

If a heart beats 36 times in 30 seconds, how many times will it beat in 60 seconds

Answers

72 reasoning is 60 is double 30 so 36 *2 is 72
Just like the first person said if it were to beat 36 times in 30 seconds then just multiply 36 by 2 and it will give you 72. So in conclusion the heart beats 72 times in 60 seconds.

As part of a weight loss plan, Levi’s average Calories consumed per day, denoted by c, subject to a maximum of 15 calories, is measured to calculate the amount of weight he will lose. If he is losing weight consistently, what is the domain of the function?

a. c < 0
b. c > 0
c. 0 ≤ c ≤ 15
d. 0 < c ≤ 15

Answers

Using it's concept, it is found that the domain of the function is given as follows:

d. 0 < c ≤ 15

What is the domain of a function?

The domain is the set that contains all possible input values for the function.

He is losing weight consistently, hence c > 0, and the maximum amount is of 15 calories, hence c ≤ 15 and the domain is given by:

d. 0 < c ≤ 15

More can be learned about the domain of a function at https://brainly.com/question/24374080

#SPJ1

54-90.27-90.22-90.87-90

Answers

Answer: -307.36 I think

Step-by-step explanation:

Given the exponential growth function f ( x ) = 75 ( 1.02 ) x f ( x ) = 75 ( 1.02 ) x What is the initial value of the function? What is the growth factor, or growth rate of the function (as a percent)? %

Answers

Answer:

Step-by-step explanation:

The initial vale is when x = 0

-  That is 75,

The growth factor is 2%.

Covert 3/7into a percent

Answers

Answer:

42.86%

Step-by-step explanation:

Our percent fraction is 42.857142857143/100, which means that 37 as a percentage is 42.86%

Here we are going to show you step by step how to convert the fraction 3/7 to a percentage.

In the fraction 3/7, 3 is the numerator and 7 is the denominator.

First, we are going to divide the numerator by the denominator. Therefore, we are going to divide 3 by 7.

3 ÷ 7 = 0.428571

A percentage shows a number as a proportion of one hundred.

Now we are going to multiply 0.72 by 100 to get the percentage.

0.428571 x 100 = 42.86

Therefore, the answer to 3/7 percent is

42.86%

Note: If necessary, we round to the nearest hundred.

[tex]\red{\boxed{\green{\boxed{\boldsymbol{\purple{Pisces04}}}}}}[/tex]

what is the answer to the question?

Answers

Using logic concepts, the correct statement is given by:

[tex](p \vee \neg p) \wedge \neg q[/tex]. FALSE.

What are the events in this problem?

The events are:

Event P: Henry is wearing a red shirt.Event Q: Henry is wearing khaki shirts.

The statement is:

Henri is wearing a red or blue shirt today with jeans.

A red or blue shirt can be represent by p or not p, that is:

[tex](p \vee \neg p)[/tex]

Jeans is not khaki, hence the second part is:

[tex]\neg q[/tex]

Combining the statements, we have that the expression is:

[tex](p \vee \neg p) \wedge \neg q[/tex]

Since p and q are true, [tex]\neg q[/tex] is false, and the entire statement is false. Hence the correct option is:

[tex](p \vee \neg p) \wedge \neg q[/tex]. FALSE.

More can be learned about logic statements at https://brainly.com/question/24912495

#SPJ1

The credit remaining on a phone card (in dollors) is a linear function of the total calling trime made with the card ( in minutes). The remaining credit after 22 minutes is $36.70, and the remaining credit after 52 mintues is $32.20. What is the remaining credit after 85 mintues of calls?

Answers

After 85 minutes of calls, there are $27.25 left on the card.

What is the remaining credit after 85 minutes of calls?

A linear equation in slope-intercept form is:

y = a*x + b

Where a is the slope.

If the line passes through two points (x₁, y₁) and (x₂, y₂) the slope is:

[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

In this case, we know that the line passes through the points (22, 36.7) and (52, 32,20)

(points of the form (time, dollars)).

So the slope is:

[tex]a = \frac{32.2 - 36.7}{52 -22} = -0.15[/tex]

The linear equation is then:

y = -0.15*x + b

To find the value of b, we use the point (22. 36.7)

36.7 = -0.15*22 + b

36.7 + 0.15*22 = b = 40

Then the linear equation is:

y = -0.15*x +40

The amount remaining in the credit card after 85 minutes is given by evaluating the above equation in x = 85.

y = -0.15*85 + 40 = 27.25

This means that after 85 minutes of calls, there are $27.25 left on the card.

If you want to learn more about linear equations:

https://brainly.com/question/1884491

#SPJ1

find arc length
x=t^(3)-2t
y=t^(2)-3
-2>t<2

Answers

Answer:

72

Step-by-step explanation:

I got it right .......

A vehicle purchased for $20,700 depreciates at a constant rate of 4%. Determine the approximate value of the vehicle 15 years after purchase.

Answers

The approximate value of the vehicle 15 years after purchase is $11,221.19.

What is the approximate value of the vehicle 15 years after purchase?

Depreciation is when the value of an asset declines with the passage of time as a result of wear and tear.

Value of the car = purchase price x (1 - rate of decline)^number of years

20,700 x (1 - 0.04)^15 = $11,221.19

To learn more about depreciation, please check: https://brainly.com/question/25552427

#SPJ1

The polynomial f(x) has degree 3. Choose each statement that could describe all zeros of f.

Answers

The true statements are

(a) -one zero with multiplicity 3(d) -one zero with multiplicity 1 and one zero with multiplicity 2(l) -Three zeros with multiplicity 1

Missing information in the question

-one zero with multiplicity 3

-one zero with multiplicity 4

-one zero with multiplicity 5

-one zero with multiplicity 1 and one zero with multiplicity 2

-one zero with multiplicity 1 and one zero with multiplicity 3

-one zero with multiplicity 2 and two zeros with multiplicity 1

-one zero with multiplicity 2 and three zeros with multiplicity 1

-Two zeros with multiplicity 2

-Two zero with multiplicity 2 and two zeros with multiplicity 1

-Two zero with multiplicity 2 and three zeros with multiplicity 1

-Two zero with multiplicity 1

-Three zeros with multiplicity 1

-Four zeros with multiplicity 1

-Five zeros with multiplicity 1

How to determine the true statements?

The function is given as:

f(x)

And it has a degree of 3

This means that

The total multiplicity of the zeros of the function is 3 It cannot have more than three zeros i.e. it can have 1, 2 or 3 zeros

Using the above highlight as a guide, the true statements are (a), (d),and (l)

Read more about polynomial functions at:

https://brainly.com/question/2833285

#SPJ1

A linear function contains the following points: 0,-3 and 6,15.
WHat is the slope and y-intercept

Answers

The slope of the linear function is 3 and the y-intercept is -3 if the linear function contains the following points: (0,-3) and (6,15)

What is the slope?

The ratio that y increase as x increases is the slope of a line. The slope of a line reflects how steep it is, but how much y increases as x increases. Anywhere on the line, the slope stays unchanged (the same).

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have:

A linear function contains the following points: (0,-3) and (6,15)

The slope:

[tex]\rm m =\dfrac{15-(-3)}{6-0}[/tex]

m = 18/6

m = 3

The equation of a line:

y = mx + c

Plug x = 0, y = -3

-3 = c

Thus, the slope of the linear function is 3 and the y-intercept is -3 if the linear function contains the following points: (0,-3) and (6,15)

Learn more about the slope here:

brainly.com/question/3605446

#SPJ1

Calculate this logarithmic expression

Answers

The solution of the logarithmic expression [tex]\log_2(17 -\sqrt{19}) + \log_2(17 +\sqrt{19})[/tex] is [tex]\log_2[270][/tex]

How to solve the logarithmic expression?

The expression is given as:

[tex]\log_2(17 -\sqrt{19}) + \log_2(17 +\sqrt{19})[/tex]

Apply the product law of logarithm

[tex]\log_2[(17 -\sqrt{19}) *(17 +\sqrt{19})]\\[/tex]

Apply the difference of two squares

[tex]\log_2[(17^2 -(\sqrt{19})^2][/tex]

Evaluate the squares

[tex]\log_2[(289 -19][/tex]

Evaluate the difference

[tex]\log_2[270][/tex]

Hence, the solution of the logarithmic expression [tex]\log_2(17 -\sqrt{19}) + \log_2(17 +\sqrt{19})[/tex] is [tex]\log_2[270][/tex]

Read more about logarithmic expression at:

https://brainly.com/question/25710806


#SPJ1

The image of a point K(1,2) after translation is K¹ (-1,2). what is the coordinate of the point R whose image is R¹ (-3,3) after undergoing the same translation. ​

Answers

Sorry big bro people do this a lot 24


Find the reciprocal of 8 2/5

Answers

[tex]\huge\underline\red{Answer -}[/tex]

[tex]\bold{8 \frac{2}{5} }\: \\\\ \implies \: \frac{5 × 8 + 2}{5} \: \\ \\ \implies \: \frac{ 40 + 2}{5} \\\\ \implies \frac{42}{5} \\\\ \rightarrow \:\boxed {reciprocal \: = \frac{5}{42} } \\ \\[/tex]

hope helpful ~

[tex]\huge\text{Hey there!}[/tex]


[tex]\mathsf{8 \dfrac{2}{5}}\\\\\mathsf{= \dfrac{8\times5+2}{5}}\\\\\mathsf{= \dfrac{40 + 2}{5}}\\\\\mathsf{= \dfrac{42}{5}}\\\\\mathsf{=\dfrac{5}{42}}\\\\\huge\text{Therefore, the answer should be: \boxed{\mathsf{\dfrac{5}{42}}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

As a summer job, Bart is picking strawberries at his uncle's farm. He can pick 6
gallons of strawberries in 9 minutes, and his uncles pays him $5 for 2 bushels. How
much does Bart make per hour picking strawberries?
Given: 8 gallons = 1 bushel & 60 minutes = 1 hour

Answers

Answer:

125

Step-by-step explanation:

All the work is in picture attat

if the figure forms the base of a right solid 110 centimeters high, find the surphase area.​

Answers

the answer should be 5 inches I guess

Given the first degree function f(x) = 2x +3, what is the value of f(10)?
a) 23
b) 25
c) 30
d) 50​

Answers

Answer:

a

Step-by-step explanation:

substitute x = 10 into f(x) , that is

f(10) = 2(10) + 3 = 20 + 3 = 23

hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

⊱┈────────────────────────┈⊰

[tex]\large \bold {ANSWER}[/tex]

[tex]\boxed{\underline{\huge{\tt{\orange{\: \: a)23 \: \: }}}}}[/tex]

[tex]\large \bold {SOLUTION}[/tex]

Given the first-degree function:

[tex]\Large\begin{array}{c}\rm f(x)=2x+3\end{array}[/tex]

We were asked to determine the value of f(10), so, to find its value, just replace the 10 where there is x in the function, see:

[tex]\begin{gathered}\Large\begin{array}{c}\rm f(x)=2x+3\\\\ \rm f(10)=2\cdot 10+3\end{array}\end{gathered}[/tex]

You see, we put that dot there, which indicates multiplication, because when a number is next to a letter it indicates that it is multiplying, thus:

[tex]\begin{gathered}\Large\begin{array}{c}\rm f(10)=2\cdot 10+3\\\\ \rm f(10)=20+3\\\\ \red{\boxed{\rm f(10)=23}}\checkmark\end{array}\end{gathered}[/tex]

Hence, the value of f(10) in this function is equal to 23.

Sarah and her friends split a bag of candy evenly. They each ate 13 pieces of candy and there are 2 pieces leftover. How many pieces of candy were originally in the bag?

Answers

Answer:

54

Step-by-step explanation:

⇒ 1 + 3 = 4

⇒ 4 * 13 = 52

⇒ 52 + 2 = 54 (Basic Operation)

Over what interval is the function in this graph increasing? A. –5 ≤ x ≤ 5 B. –3 ≤ x ≤ 2 C. –4 ≤ x ≤ –2 D. –2 ≤ x ≤ 3

Answers

The function in this graph is increasing in the interval   –2 ≤ x ≤ 3 , Option D is the right answer.

What is a function ?

A function is a mathematical statement used to relate a dependent and an independent variable.

From the graph it can be seen that the graph is increasing in the interval

–2 ≤ x ≤ 3

The graph is said to be increasing when the value of y is getting more and more positive

As  –2 ≤ x ≤ 3 , y varies from -3 to +3

Therefore Option D is the right answer.

To know more about Function

https://brainly.com/question/12431044

#SPJ1

Answer:

–2 ≤ x ≤ 3

Step-by-step explanation:

simplify: (-291) × 134​

Answers

Answer:

-38,994

Step-by-step explanation:

-291*134

=-38,994

Answer:

-38,994

Step-by-step explanation:

(-291) × 134

Apply PEMDAS.

Remember,

- × - = +- × 1 = -

Solution:

Evaluating,we obtain

(-291) × 134-38,994

Complete the following table using the equation: Y = negative 2 x Squared x -2 -1 0 1 2 y Plot the points on a graph and determine which graph best represents the equation. Graph A On a coordinate plane, a parabola opens up. It goes through (negative 1, 2), has a vertex at (0, 0), and goes through (1, 2). Graph B On a coordinate plane, a parabola opens down. It goes through (negative 1, negative 1), has a vertex at (0, 0), and goes through (1, negative 1). a. 8, 2, 0, 2, 8; Graph A b. -8, -2, 0, -2, -8; Graph A c. 8, 2, 0, 2, 8; Graph B d. -8, -2, 0, -2, -8; Graph B Please select the best answer from the choices provided A B C D

Answers

The Graph B  best represents a parabola , Option D has the correct data points and so is the right answer.

What is a function ?

A function is a mathematical way of representing relation between two variables.

The function given is

y = 2x²

For x = - 2, y = -2(- 2)² = -8

For x = - 1, y = -2(- 1)² = -2

For x = 0, y = -2(0)² = 0

For x = 1, y = -2(1)² = -2

For x = 2, y = -2(2)² = -8

the  table of x-y will be:

x  - 2    - 1    0    1    2

y    -8     -2   0  -2   -8

The graph is attached with the answer.

The parabola opens downward and has the data points as mentioned above .

Therefore Option D is the correct answer.

To know more about Function

https://brainly.com/question/12431044

#SPJ1

Answer:

Step-by-step explanation:

Complete the following table using the equation: y = 2 x squared

x

-2

-1

0

1

2

y

       

         

Plot the points on a graph and determine which graph best represents the equation.

Graph A

On a coordinate plane, a parabola opens up and goes through (1, 3), has a vertex at (0, 0), and goes through (1, 3).

Graph B

On a coordinate plane, a parabola opens down and goes through (negative 1, negative 2), has a vertex at (0, 0), and goes through (1, negative 2).

a.

8, 2, 0, 2, 8; Graph A

b.

-8, -2, 0, -2, -8; Graph A

c.

8, 2, 0, 2, 8; Graph B

d.

-8, -2, 0, -2, -8; Graph B

 

Please select the best answer from the choices provided

A

B

C

D

   answer is '' a '  got it right

Algebra 2 help please

Answers

Blank 1: 3

Blank 2: 27

Blank 3: 21

you have to distribute the three to everything inside the parenthesis, and because it's directly in front of the parenthesis it's being multiplied.

3(x - 9) = 3x - 27

Now you need to isolate the y, in this e ample you need to add 6 to both sides

the final equation should be:

y = 3x - 21

Choose the correct graph of the following condition. {(x, y) : x - y6}

Answers

The correct graph of the following condition. {(x, y) : x - y6} is depicted in the graph attached.

What is a graph?

A graph is a diagram showing the relation between variable quantities each measured along one of a pair of axes at right angles.

In this case, the correct graph of the following condition. {(x, y) : x - y6} is depicted in the graph attached.

Learn more about graph on:

https://brainly.com/question/19040584

#SPJ1

In the diagram below, all the measurements are given correct to the nearest cm.
Not drawn
to scale
28 cm
15 cm
21 cm
42 cm
Calculate the greatest possible area of the shaded region.
+
P

Answers

Answer: 462 square cm

Step-by-step explanation:

The area of the shaded region is the difference between the areas of the two rectangles.

Larger Rectangle: (42)(21)

Smaller Rectangle: (28)(15)

Area of shaded: (42)(21)-(28)(15)=462 square cm

What is the domain of the radical function shown on the graph y = -√x-2-4

Answers

Answer:

all real numbers

Step-by-step explanation:

the answer is all real numbers.

we know this since if you plug in any value for x we will get a real number.

hope this helps

Which measure of center is shown in a box plot?
mean
median
mode
range

Answers

3,0
5,1
3,1
4,1 is the correct answer

Answer:

  (b)  median

Step-by-step explanation:

A box-plot is a graphical representation of the 5-number summary of a data set. It includes the minimum, maximum, median, and 1st and 3rd quartiles.

__

The measure of center shown in a box plot is the median.

4x^2 +16x -20 = 0
What is x

Answers

Answer:

x = 1, -5

Step-by-step explanation:

4(x^2 + 4x - 5) = 0

4(x - 1)(x + 5) = 0

x = 1, -5

what is the probability that a family with three children will have all girls?
A) 1/2
B) 1/8
C) 25%
D) .10​

Answers

Answer:

B) 1/8

Step-by-step explanation:

each child born has 50/50 to be a boy or a girl, so, we determine a Bernoulli process where p=0.5, and we need 3 out of 3 successes.

the probability will then be:

(0.5)³=0.125=1/8

B) 1/8 . i believe so

Explain how to graph a scatterplot and its regression line using a regression calculator

Answers

Press the Linear Regression button to generate the regression line.

We have given that, regression line using a regression calculator

We have to determine how to graph a scatterplot and its regression line using a regression calculator.

Before entering data into the regression calculator, it is important to determine which variable should be associated with the x-axis and which with the y-axis.

What is the regression line?

Regression analysis is a set of statistical processes for estimating the relationships between a dependent variable and one or more independent variables.

Enter the data pairs.

Press the Linear Regression button to generate the regression line.

To learn more about the regression line visit:

https://brainly.com/question/732489

#SPJ1

Other Questions
Question 6What role did the bile salts play in Part 3 of this exercise? How do these results correlate with where bile salts occur in the human body? Point A is at (3, 2.6) and Point B is at (3, 1.4) on a coordinate grid. The distance between the two points is Where the better adapted organisms survive to pass traits along to offspring. He decides to write about an event involving Odysseus.Which are effective research questions to best develophis topic? Where was Odysseus born? What are the names ofhis parents?Where did he travel on his journey?What is the name of Odysseus's biggest battle? Whatis his most important quality?What happened in Odysseus's attempt to captureTroy? What impact has this had upon modern life?Who was Odysseus? Why is he important? How hashe influenced today's society? make a list of what quantity of man power is available in your community? How many grams ofdiphosphorus trioxide, P2O3, arerequired to react completely with2.25 moles HO?P2O3 + 3HO 2H3PO3[?] g P03 Objectives:The following objectives will be completed by the learner upon completion of the support groupassignment:1. Define support groups and their purpose.2. Identify types of support groups and the role of the support group.3. Identify the nurse's role as it relates to support groups.4. Identify how their (the learner, you) own life experiences could have an impact.5. Demonstrate therapeutic communication during this assignment.6. Demonstrates knowledge of the requirement of confidentiality as it relates to supportgroups and their success.7. Records and reports reflectively What is the earliest form of listening for a human that occurs when we do not yet understand the actual words used known as? Which statement best describes a bias that the author of the native American we might have? Find area bounded between y=x^2 and y=-(x+2)^2+4 an incorrect way of handling disposable gloves includes The relationship between the number of years for the mortgage / home loan and the monthly payment amount. Qu vale ochenta y cinco euros? How much money can an employer deduct if you accidentally damage or destroy something while working? HELP 25 POINTS What kind of instruction is spiritual instruction? informal both informal and formal formal neither informal nor formal Which are effective ways to help prevent medication errors? (select all that apply) Unlike many other climbers, Sakura has her own climbing style. Her top competitors work their way slowly up the wall, pausing to rest and rethink their planned approach at each step, but Sakura plans her whole climb beforehand and moves up the wall without stopping, often leaping to grasp handholds that seem out of reach. This style means she falls more often than some other climbers but often gets several tries at a problem before her time is up. Which option best states the central idea of the passage? A. Climbers can win if they get to the top of the wall before the time is up. B. There is little chance Sakura will win because she falls so often. OC. Unlike other climbers, Sakura does not plan how to move up the wall. D. Sakura's climbing style stands out because of its constant motion. Unlike many other climbers , Sakura has her own climbing style . Her top competitors work their way slowly up the wall , pausing to rest and rethink their planned approach at each step , but Sakura plans her whole climb beforehand and moves up the wall without stopping , often leaping to grasp handholds that seem out of reach . This style means she falls more often than some other climbers but often gets several tries at a problem before her time is up . Which option best states the central idea of the passage ? A. Climbers can win if they get to the top of the wall before the time is up . B. There is little chance Sakura will win because she falls so often . OC . Unlike other climbers , Sakura does not plan how to move up the wall . D. Sakura's climbing style stands out because of its constant motion . How does this excerpt develop the central idea that Elizabeth Van Lew helped expand the role of women in society? Choose two answers. Which set of values could be the side lengths of a 30-60-90 triangle? Someone help asap pls!! Ill mark you brainliest