Mathematics High School

A complex number of the form z = a + bi has an absolute value of 4.00. What could the values of a and b be?

a = 1.6, b = 2.3
a = 1.6, b = 2.5
a = 1.9, b = 2.1
a = 2.1, b = 3.4

Answers

Answer 1

Answer:

According to the question z must be equal to 4. So value of a+b=z or a+b=4

Lets try each of the options

A) a+b

1.6+2.3=3.9 which is not equal to 4

So option a is not the asnwer.

B) a+b = 1.6+2.5= 4.1 which is not equal to 4

C) a+b= 1.9+2.1= 4.00 which is equal to 4

D) a+b= 2.1+3.4= 5.5 which is not eqaul to 4

Thus, we have OPTION C AS THE CORRECT ANSWER

Answer 2

Answer:

It's NOT C, it's D!

Step-by-step explanation:

Related Questions

I count on in equal steps.
My first number is -9, my fifth number is 7.
-9
2
7
T
What is my third number?​

Answers

You can solve it by A. P

A5=7,A1=-9

A5=A1+4D

D=4

A3=A1+2D

=8-9=-1

point slope and slope intercept ​

Answers

Answer:

Step-by-step explanation:

Observe what happens to y if we move from x = 1 to x = 9:  y decreases by 2.  Thus, the slope of the line in question is m = rise / run = -2/8, or -1/4.

Writing the equation in point-slope form, y - k = m(x - h), we get:

y - 7 = (-1/4)(x - 1)      (point-slope form)

Solving for y results in the slope-intercept form:

y = 7 - x/4 + 1, or

y = (-1/4)x + 8     (slope-intercept form)

ellus
8
Which constant number would
you add to both sides of the
equation in order to complete
the square for the quadratic
function 1 = x2 – 3x?
Give your answer as a fraction in simplest form.
[?]
[]
HINT: Use ()?
Enter

Answers

9514 1404 393

Answer:

  2.25

Step-by-step explanation:

Add the square of half the x-coefficient to complete the square.

  (-3/2)² = 9/4 = 2.25

Simplify (3x - 5) + (5x + 1). (1 point)
оа
8x - 6
Oь
8x +4
Oc
8x - 4
Od
2x - 4

Answers

Answer:

The answer is C. 8x - 4

Step-by-step explanation:

Eliminate the redundant parentheses.

(3x - 5) + (5x + 1)

3x - 5 + 5x + 1

Add the numbers.

3x - 5 + 5x + 1

3x - 4 + 5x

Combine like terms.

3x - 4 + 5x

8x - 4

Given that f(x)=2x−5 and g(x)=5x, evaluate g(f(2))

Answers

Plug 2 in f(x), 2(2)-5= -1. Now plug -1 into g(x), 5(-1)=-5. -5 is your final answer.

which images shows a reflection​

Answers

I'll Give You Some Hints:

Let's Look at C.

In C, the triangle is translated 2 units to the right. Which means that it cannot be a reflection.

Let's Look at B.

In B there is a sideways triangle. That means it's a Rotation. Which means it's not Reflected.

Lastly, Let's Look at A.

To get from the original triangle to the triangle in A, you have to reflect twice. Once along a vertical line, and then along a horizontal line.

This Information Should Help You

In election,a candidate got
82 % votes.He won the election beating his rival in candidates by 576 votes.How many votes were polled?

#The first one to answer will mark brain list. And answer should be correct.​

Answers

A b c d e f g h I j k l m n o p q r s t u v w x y q

Answer:

703 votes

Step-by-step explanation:

703 times 0.82 equals 576.46

y varies directly as x and z. Y is equal to 16 when x=2 and z=4,find Y when x=1 and z=7​

Answers

Answer:

here's one way:  z^x = Y,   7^1 = 7

Y = 7

Step-by-step explanation:

Name two points on the line y = 6x. Does it describe a
proportional relationship?

Answers

Answer:

b. Non-proportional

Step-by-step explanation:

A table of values that represents a proportional relationship will have the same ratio of every pair in the given table. That is, y/x will result in the same value all through for every given pair.

The table of values given does not show a proportional relationship, because the ratio of y to x of each given pair of values are different and unequal:

y/x = 3/1 ≠ 5/2 ≠ 7/3 ≠ 9/4

Therefore, it is non-proportional.

hope i help

hey... what's
[tex](a {}^{2} - b {}^{2} ) = [/tex]
​

Answers

Answer:

[tex](a^{2} - b^{2} ) = (a + b)(a - b)[/tex]

Step-by-step explanation:

This is the Difference of Squares: [tex](a^{2} - b^{2} ) = (a + b)(a - b)[/tex].

Hope it helps!

it is (a + b) ( a - b )

hope it helps

i need help pleaseeee

Answers

Answer:

I did this question just the other day. The answer you are looking for is B or the second one.

Step-by-step explanation:

In a math statement 4^9 the 9 is called the

Answers

Answer:

exponent

Step-by-step explanation:

cuz that s what it is called

Answer:

expo

Step-by-step explanation:

give them brain, they're correct.

Find the volume of the given shape. Round your answer to the nearest
tenth if necessary.
*

Answers

Answer:

4,084

Step-by-step explanation:

Volume of a cylinder formula [tex]v=\pi r^{2} h[/tex]

h = 13ft

r = 10ft (20/2)

Then you solve

[tex]v=3.14*10^{2}*13\\\\v=3.14*100*13\\v=314*13\\v=4,082[/tex]

ILL GIVE 50 POINTS

Which set of statements explains how to plot a point at the location (Negative 3 and one-half, negative 2)?
Start at the origin. Move 3 and one-half units right because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between 3 and 4. Move 2 units down because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units left because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units right because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units left because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units down because the y-coordinate is -2.

Answers

Answer:

Option 3 is right

Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units right because the y-coordinate is -2.

Hope this helps:)

It is B from my point of view

Find the volume of each prism. Show your work for full credit!

Answers

Answer:

1080

Step-by-step explanation:

1/2*base area*h

This is a bit confusing for me, can anyone help me out?

Answers

Answer:

circumference=471

area=17671

Step-by-step explanation:

circumference=150pi=150*3.14=471

area=150/2=75 and 75^2pi=5625pi=17671

what is 6 times 3 plus 8 minus 1 and then divided by 8

Answers

Answer:

25.875

Step-by-step explanation:

6*3+8-1/8

18 + 8 - 1/8

25.875

PLZ HELP
Maya exercises at least 50 minutes per day.
Use t to represent Maya's amount of exercise (in minutes per day).

Answers

Answer:

425261625

Step-by-step explanation:

1+2-4252+425251-34%+5%

PLSSSSS HELP DUE IN 3 min Write the equation of the line in fully simplified slope-intercept form.

Answers

Y=-1/3x-1 I believe is the correct answer

Find the total price of a $13.99 movie after a sales tax of 8% is added. what is the total amount *

Answers

Answer:

15.10 I believe

Step-by-step explanation:

se acabaron los bidones de 10 y se quieren envasar 1362 litros de agua ¿cual es la menor cantidad de envases que se pueden llenar?​

Answers

Answer:

serían 136 y sobran 2

Step-by-step explanation:

porque al ser una botella de 10 litro y 1362 los dividimos nos da la cantidad de 136 se puede hacer mentalmente

Help me with question 1

Answers

Answer:

The most logical answer would be C.

Step-by-step explanation:

The price of a flight was increased by 3% to £720. What was the price before the increase?
Give your answer to the nearest penny.

Answers

699.03 dollars

hope it helps

What's -2/9 * 5/6? I'm a bit stuck.

Answers

Answer:

-2/9*5/6

As it is multiplication we can directly multiply them.

Thus we will get,

(-2*5)/(9*6)

-10/54

And now by converting into the  simplest form we will get,

-5/27

And this is the final answer.

Find the percent of increase from 12.5 inches to 18.5 inches. Round the percent to the nearest tenth if necessary.

Answers

Answer:

148%

Step-by-step explanation:

12.5x = 18.5

Find the missing side !!

Answers

Answer:

36?

Step-by-step explanation:

Please help explain the easiest way

Answers

Answer:

60 m

Step-by-step explanation:

Triangle formula:

Mrs. Kim bought
4
4 boxes of stickers at the store to share with her students. Each box contained
64
64 stickers.

Answers

Answer:

She has 256 stickers.

Step-by-step explanation:

4 times 64 equals 256

A line passes through the point (8, -9) and has a slope of 3/4 . Write an equation in point-slope form for this line.​

Answers

Answer:

y+9=3/4(x-8)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-9)=3/4(x-8)

y+9=3/4(x-8)

Item 4 Write a proportion to find how many points x a student needs to score on a test worth 50 points to get a test score of 40%

Answers

Answer:

20 points

Step-by-step explanation:

We need to find how many points x a student needs to score on a test worth 50 points to get a test score of 40%.

Let x be the number of points.

ATQ,

[tex]\dfrac{x}{50}=\dfrac{40}{100}\\\\x=\dfrac{50\times 40}{100}\\\\x=20[/tex]

Hence, a student needs 20 points to get a score of 40%.

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