What is the real part of the complex number when 4 plus 5i is multiplied with 2 minus i?
3 + 6i
13 + 6i
13
3
6
6i

Answers

Answer 1

Answer:

What I do not understand what you are asking, can you repeat it pls.

Step-by-step explanation:


Related Questions

Pls help
8th grade math

Answers

a. $500
b. $50
c. y= 50x + 500

Answer:

per night 50 cost

Step-by-step explanation:

sorry but i goo

The population of weights of a particular fruit is normally distributed, with a mean of 464 grams and a standard deviation of 6 grams. If 27 fruits are picked at random, then 2% of the time, their mean weight will be greater than how many grams?

Answers

Answer:

If 27 fruits are picked at random, then 2% of the time, their mean weight will be greater than 466.37 grams

Step-by-step explanation:

Mean = [tex]\mu = 464[/tex]

Standard deviation =[tex]\sigma = 6[/tex]

We are supposed to find If 27 fruits are picked at random, then 2% of the time, their mean weight will be greater than how many grams i.e.P(X>x)=0.02

The mean weight is in the highest 2%, you want to go to a z-table and find the z-score that where the area to the left of the curve is closest to 0.98.

n = 27

Refer the z -table

P(Z>x)=2.06

[tex]\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}=2.06\\\frac{x-464}{\frac{6}{\sqrt{27}}}=2.06\\x-464=2.06 \times \frac{6}{\sqrt{27}}\\x=(2.06 \times \frac{6}{\sqrt{27}})+464\\x=466.37[/tex]

So, If 27 fruits are picked at random, then 2% of the time, their mean weight will be greater than 466.37 grams

Solve: x^2=10
A) x= +5
B) x= +100
C) x= +3.5
D) x= 10 squared

Answers

Answer:

D) x=√10

Step-by-step explanation:

√(10)=3.16(approximately )

Determine whether a statement is True or False. If it is False, provide an explanation or give an example:

Answers

Complete Question:

Determine whether the statement is true or false. If it is false, provide an explanation or give an example.

If f is decreasing on [a,b] then the minimum value of f(x) on [a,b] is f(a)?

Answer:

False

Step-by-step explanation:

Given

[a,b]

Where f(x) is decreasing

Required

Is the minimum f(a)?

This statement is false and it is proved using the following illustration

Take f(x) to be

[tex]f(x) = -2x[/tex]

The above represents a decreasing function because:

f(x) decreases as x increases

Having said that:

Assume [a,b] is:

[tex][a,b] = [2,5][/tex]

Substitute the value of a i.e. 2 for x in f(x)

[tex]f(2) = -2 * 2[/tex]

[tex]f(2) = -4[/tex]

Substitute the value of b i.e. 5 for x in f(x)

[tex]f(5) = -2 * 5[/tex]

[tex]f(5) = -10[/tex]

Notice that f(b) < f(a) i.e. -10 is less than -4

Hence:

f(x) is minimum at f(b)

Conclusively, the statement is false

What is the image point of (-8, 7) after a translation right 5 units and up 5 units?

Answers

Answer:

-11,11

Step-by-step explanation:

JUst add 5 to both.

need help with this please

Answers

Answer:

ok

Step-by-step explanation:

                                                              ...............................................................

Answer:

I can't relly see can you take a cloeser pick

PLEASE HELP!

Equation: 4(x-6)-8=5(x-7)-x

Answer choices:

A. 0
B. All real numbers
C. No solution
D. Non of the above

I chose C but I wanted to get some confirmation. Thanks!

Answers

Answer:

0, it has no solution.

Step-by-step explanation:

discrimination from teachers to students

Answers

Answer:

agree

Step-by-step explanation:

What is the question


Is - 60 a solution of 1/12*=5?

Answers

Answer:

No -60 is not a solution

Step-by-step explanation:

x = 5/12 = 2.400

-60 is not a solution of 5/12, or 1/12*=5.

Hope I helped.

This coordinate grid shows where Alberto's school is located. Each unit represents one block. Alberto's house is at (3,4). The library is located at the reflection of (3,4) across the y-axis.

PART A
What are the coordinates of the library?Explain how you know.

PART B
not needed
PART C
Use absolute value to find the distances from Albertos house to the school and from Albertos house to the library.

Answers

Answer:

Part A) -3, 4 Part C) 12 i think

Step-by-step explanation:

Answer:

Part A-(3,4)

Part B- 2 units

Step-by-step explanation:

Part A- (x,y)--->(-x,y)

What is the slope of the line shown below? 1/6 -5/-7


Answers

Answer: C. 13/6

Step-by-step explanation:

The slope is always rise over run. So when going from the coordinate (-5,-7) to the coordinate (1,6) we go up 13 then go to the right 6. And since we went up and to the right it is a positive slope.

At a school, there are 120 athletes. The ratio of boy athletes to giri athletes is 3:5. How many of the athletes are girls?
А
75
B
45
с
24
D 5

Answers

Answer:

a

Step-by-step explanation:

because there are over half girls and half of 120 is 60 and 75 is over half

Triangle BIG is similar to triangle MOP . Find v .

Answers

Answer:

63:42

so this is

3:2

[tex] \frac{33}{3} = \frac{v}{2} [/tex]

[tex]v = \frac{2 \times 33}{3} = \frac{66}{3} = 22[/tex]

v=22

The value of v should be considered as the 22 when the Triangle BIG is similar to triangle MOP.

Calculation of the value of v:

Since as per both the figures we can write the ratio like  63:42 so it can be like 3:2

So the calculation could be done below

[tex]33 \div 3 = v \div 2\\\\v = 2 \times 33 \div 3\\\\= 66 \div 3[/tex]

= 22

Hence, The value of v should be considered as the 22 when the Triangle BIG is similar to triangle MOP.

Learn more about triangle here: https://brainly.com/question/9721655

can someone help me it is math please I will mark brainlist

Answers

Answer:

The difference of a number and seven → n - 7The sum of seven and a number → n + 7The product of seven and a number→ 7nThe quotient of a number and seven → [tex]\frac{n}{7}[/tex]  

Step-by-step explanation:

Difference = subtraction, so the difference of a number and seven is n - 7Sum = addition, so the sum of seven and a number is n + 7Product = multiplication, so the product of seven and a number is 7nQuotient = division, so the quotient of a number and seven is [tex]\frac{n}{7}[/tex]

I hope this helps!

Answer:

1 goes to n-7

2 goes to n+7

3 goes to 7n

4 goes to n/7

Step-by-step explanation:

HURRY ON A TIMER PLEASE HELP

which shows all the like terms in the expression ​

Answers

Answer:

the second one -3and1 :4x and 7x

Step-by-step explanation:

Answer:

-3 and -1; 4x and 7x

Step-by-step explanation:

like terms are the numbers with the same variable

eg. 4x^2 and 6x aren't like terms, but 2x^4 and 3x^4 are

The following list has a mean of 24. What would be the new mean if 17 was added to the list? 12,30,19,27,21,35

Answers

Answer:

23

Step-by-step explanation:

Answer:

The new mean should be 23.

Step-by-step explanation:

The mean of a group of numbers is the average.

We can find the average of a group of numbers by adding them all together and then dividing the final sum by the amount of numbers in the list.

All the numbers added together totaled to 161, and 161 divided by 7 equals 23.

Hope this helps!

Business Loss A company loses $40 as a result of a shipping delay. The 2 owners of the company
must share the loss equally. Write an expression for the earnings per person. Evaluate the
expression.
Write an expression for the earnings per person. Choose the correct answer below.
+
OA. - 2+(-40)
OB. 2+(-40)
OC. 40+ (-2)
OD. - 40 + 2

Answers

Answer:

b

Step-by-step explanation:

The equations of sides of a triangle are 2x-3y+5=0, 2x+y=7 and 2x+5y=3. Find the coordinates of the vertices.

Answers

Answer:

Vertices A B y C

A ( 2 , 3 )    B ( -1 , 1 )  C ( 3, 1 )

Step-by-step explanation:

We have to solve a two-equation system, by pair of equations as follows

equation (1)   2x - 3y + 5 = 0

equation (2)  2x + y -7    = 0

Solving this system we find let´s say vertex A

0x - 4y +12 = 0      y = 3

Then x ?

2x - 3y + 5 = 0

2x - 9 + 5 = 0     ⇒ 2x = 4     x = 2

Then vertex A ( 2 , 3 )

From equation (1) and (3)

2x - 3y + 5 = 0

2x + 5y - 3 = 0

Agan subtracting (1) - (2)

0x -8y + 8 = 0

y = 1    and      

2x + 5y = 3

2x + 5 = 3

2x = -2

x = -1

Vertex B ( -1 , 1 )

Finally from equation (2) and (3) we get the third vertex C

2x + y - 7 = 0

2x + 5y - 3 = 0

0x -4y -4 = 0

y = 1

2x + y = 7

2x + 1 = 7

2x = 6

x = 3

C ( 3 , 1 )

question 5 i mark as brainliest ​

Answers

Answer:

5,129

Step-by-step explanation:

Answer:

C. 5129

Step-by-step explanation:

5.129 x [tex]10^{3}[/tex]

you will move the decimal to the right 3 times.

Jill is building a wooden-raised bed garden for her vegetables. She wants the frame to have dimensions x feet by x + 3 feet. If she wants the garden to have a maximum area of 50 square feet, what are the possible values of x?

[−8.728, 5.728]
[1, 5.728]
[−3, 5.728]
(0, 5.728]

Answers

Answer:

its d

Step-by-step explanation:

thank the guy up top

Using quadratic formula, the possible values of x lies in [0, 5.728].

What is a quadratic formula?

The quadratic formula is a formula that provides the solution to a quadratic equation.

[tex]x = \frac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \\\\when\ ax^2 + bx + c = 0\\a, b, c = constants, \\where\ a != 0\\x= the\ unknown[/tex]

The equation in the given question is-

[tex](x+3)(x) < =50\\\\x^{2} +3x-50 < =0\\\\x^{2} +3x-50=0\\\\x = \frac{-3 +\sqrt{9+4*50} }{2} ,\frac{-3 -\sqrt{9+4*50} }{2}\\\\x = \frac{-3 +\sqrt{209} }{2} ,\frac{-3 -\sqrt{209} }{2}\\\\\\x = -8.728, 5.728\\\\x =[-8.728, 5.728][/tex]

But, x cannot be negative so x lies in [0, 5.728].

Learn more about quadratic formula here

https://brainly.com/question/2615966

#SPJ2

In the number 789.466 the digit in the hundredths place is______ the value of the digit in the thousandths place?​

Answers

Answer:

hundredths --> 6

thousandths value --> 0.006

Step-by-step explanation:

hundredths is the value two places to the right of the decimal point, which is currently 6.

The value of the digit in the thousandths place, which is 3 places to the right of the decimal place, is 6, but the value of the 6 is actually 0.006, because it is in the thousandths place, just like 700 would be the value of the digit in the hundreds place.

PLEASE HELP MATH!!!1

Answers

the y< -2x + 6 is the one that crosses at 6 on the y-axis. the < indicates that you shade BELOW it, so the left side of that line is shaded because it has a negative slope.

the y> 5/4x - 6 is the one that crosses at -6 on the y-axis. the > indicates that you shade ABOVE it, so the left side would also be shaded because it has a positive slope.

so whatever point is in both of those shaded areas would satisfy both inequalities

Plz help
(5x)2 square = X2square

Answers

Answer:

± 25

Step-by-step explanation:

PRACTICE ANOTHER Is 4a a factor of 2a · 38b? (Assume that a and b represent integers.) Yes, because 4 is a multiple of 38. Yes, because 2a · 38b = 4a · 19b where 4a and 19b are integers because a and b are integers and products of integers are integers. Yes, because 4a is a divisor of 38b. No, because 38 is not a divisor of 4. No, because 2a · 38b = 4a · 19b where 4a and 19b are not necessarily integers because products of integers are not always integers.

Answers

Answer:

Yes, [tex]2a . 38b = 4a . 19b[/tex]

Step-by-step explanation:

Given

[tex]Expression: 2a.38b[/tex]

Required

Is 4a a factor of the expression?

Analyzing each option.

1.

[tex]2a . 38b = 4a . 19b[/tex]

[tex]76ab = 76ab[/tex]

The above expression is true.

Hence: This option answers the question

A furniture factory makes 250 tables each day. Create an equation that can be used to find the total number of tables made, y, after x days.

Answers

Answer:

The equation would be y=250x

Step-by-step explanation:

They are making 250 tables a day (x)

we put the x next to the 250 because that number will change everyday.

y would equal our total

Unit 4: Lesson 9: Parallel and Perpendicular Lines Unit Test Parallel and Perpendicular Lines does anyone have the answers for this 13 question test ??

Answers

What test is this question from?

Answer:

I need these answers and the ones he put in in the comments are all wrong

A power boat travels along a river in which the flow of water is at a constant in one direction. If the boat travels at 40 mph downstream and 30 mph upstream. What is the speed of the boat in still water and the speed of the river?

Answers

Answer:

im guessing 35mph

Step-by-step explanation:

Answer:

30 mph and 40 mph

Step-by-step explanation:

It is the same with the speed and water.

Can someone help me to do this cause i don’t know what to do

Answers

Answer:

ohh

Step-by-step explanation:

Woah it’s like the back of a milk label...

I need to find what the square root is to 19,478,730. my teacher literally put that. help​

Answers

Answer: 4413.5

Step-by-step explanation:

4413.47142 if you need to be exact

When graphing a polynomial function, what determines what the graph will look like at the far left side? Explain your answer.

Answers

Answer:

2

Step-by-step explanation:

this will help i think this will be the answer i am not sure

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