help please and show the steps

Help Please And Show The Steps

Answers

Answer 1

9514 1404 393

Answer:

  (a) 12∠0.1

  (b) 3∠-0.1

  (c) (1/3)∠-0.1

Step-by-step explanation:

In this answer, we will use the notation r∠φ to identify the "r-part" and the "φ-part" of your polar-form complex numbers.

Given: z = 3∠0.1

(a) 4z = 12∠0.1 . . . . .  the r-part is multiplied by the scalar

(b) z* = 3∠-0.1 . . . . .  the conjugate is formed by negating the angle

(c) 1/z = (1/3)∠-0.1 . . . . the reciprocal inverts the magnitude and negates the angle.


Related Questions

The graph of a linear function is shown on the coordinate grid.
What is they y-intercept of the graph of the linear function?

Answers

Answer:

y=-6

Step-by-step explanation:

just look at the bottom and yahhhh

Kimi buys a box of blueberry, poppy seed, and chocolate-chip muffins. There are 17 blueberry
muffins and 17 chocolate-chip muffins in the box. How many muffins are in the box?
42
50
61
There is not enough information to solve this
problem.

Answers

Answer:

we need more info

Step-by-step explanation:

pls answer quick Doug makes a parallelogram-shape sign for his shop.


What is the area of this parallelogram?


Round to the nearest hundredth.



5.32 ft²


8.96 ft²


14.28 ft²


17.02 ft²

Answers

Answer: 1.9x2.8 + 3.2+2.8 = 14.28

HOPE THIS HELPS

Express as a trinomial.
(3x+1)(2x-1)

Answers

6x^2 - x - 1

Do foil to find it

Answer:

6x^2-x-1

Step-by-step explanation:

Use the FOIL method.

The yield of a certain chemical reaction is believed to be related to temperature. A study collected the yield from 15 such reactions selected at random to test the belief and producedthe following results.
Variable Estimate
Intercept 1 15.5 2.96
Temp 1 0.05 0.017
R-sq = 0.73
Which of the following is the appropriate test statistic for the test?
a. t=0.05/0.73
b. t=15.5/0.73
c. t=0.05/15.5
d. t=15.5/0.05

Answers

Answer:

t = 0.05 / 0.017

Step-by-step explanation:

Given the table :

Variable ____ Estimate

Intercept 1 ____ 15.5 ____2.96

Temp 1 _______0.05 ___ 0.017

R-sq = 0.73

The test statistic for a regression test :

t = b1 / E

Where ;

b1 = slope ; E = Standard error of the slope

From the result table ;

b1 = 0.05 ;

E = 0.017

The test statistic, t = 0.05 / 0.017

The appropriate test statistic for the test is t = 0.05 / 0.017.

Calculation of the test statistic for the test:

Since

Variable ____ Estimate

Intercept 1 ____ 15.5 ____2.96

Temp 1 _______0.05 ___ 0.017

R-sq = 0.73

So here the test statistic should be

t = b1 / E

here,

b1 = slope ;

E = Standard error of the slope

So,

The test statistic, t = 0.05 / 0.017

learn more about random here: https://brainly.com/question/24172316

Vx
Which two figures have the same number of lateral faces?
O sphere and cylinder
O triangular prism and rectangular prism
O rectangular prism and cube
O triangular prism and cylinder

Answers

second one okay bye have a nice day

PLEASE HELP ASAP GIVING BRAINLIEST W/ POINTS PLSS

Answers

9514 1404 393

Answer:

  108 ft²

Step-by-step explanation:

When x=6, the length is 6+6 = 12 ft, and the width is 6+3 = 9 ft. The area is given by ...

  A = LW

  A = (12 ft)(9 ft) = 108 ft²

The area of Cameron's garden is 108 ft².

Determine whether the System of equations 3x+y=-5; 3y+15=-9x

Answers

Answer:

Infinitely many solutions.

Step-by-step explanation:

The given system of equations are :

3x+y=-5 ...(1)

3y+15=-9x

y+5 = -3x

or

3x+y = -5 ....(2)

Here, [tex]\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}[/tex]

It means, two lines are coincident. It means they have infinitely many solutions.

(-55) +____ = -89
Find the missing

Answers

(-34) is the missing..

I need help this is due today

Answers

Answer: the amount of money after the purchase depends on the amount of money before the purchase

Step-by-step explanation:

Last month we had only five sunny days. There were 30 days in all last month.
What was the ratio of sunny days to the total number of days? What was the ratio
of sunny days to days that were not sunny?

Answers

Answer:

6

Step-by-step explanation:

30 ÷ 5 = 6

Answer:

6

Step-by-step explanation:

it is 6

Using the graph, determine the equation of the axis of symmetry.

Answers

Answer:

One Point I believe

Step-by-step explanation:

blank minus 1/2 equals to 1/6

Answers

Answer:

Blank = [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

blank = x

[tex]x-\frac{1}{2} =\frac{1}{6} \\\\x=\frac{1}{6} +\frac{1}{2} \\\\x=\frac{1}{6} +\frac{3}{6} \\\\x=\frac{4}{6} \\\\x=\frac{2}{3}[/tex]

evaluate the expression x-9=3 (solve)

Answers

Answer:

x = 12

Step-by-step explanation:

[tex]x - 9 = 3 \\ x = 3 + 9 \\ [/tex]

[tex]\boxed{Answer:{\boxed{\green{x = 12}}}}[/tex]

Tú tienes la mitad de lo que tenías y tendrás el triple de lo que tienes. Si tuvieras lo que tienes, tenías y tendrás, tendrías lo que yo tengo que es 180 dólares más de lo que tú tendrás ¿Cuánto tenías?

Answers

Answer:

Step-by-step explanation:

∠3 and ∠6 are alternate interior angles. If m∠3 = 75, what is the measure of ∠6
a. 15°
b. 75°
c. 105°
d. 180°​

Answers

Answer:

B. m<3 = m<6 = 75degrees

Step-by-step explanation:

First you must understand that in geometry, the alternate interior angles are equal

Hence if ∠3 and ∠6 are alternate interior angles, then <3 = <6

Given that m<3 = 75 degrees

m<6 will also be 75 degrees since both angles are equal

A sample of a radioactive isotope had an initial mass of 450 mg in the year 2005 and decays exponentially over time. A measurement in the year 2012 found that the sample's mass had decayed to 310 mg. What would be the expected mass of the sample in the year 2017, to the nearest whole number?

Answers

Answer: 238

Step-by-step explanation:

HELPP IM FAILING MATH RN!!

LC is 40°. What is the measure of arc CB?

Answers

I hope this helps you

Hi there!

[tex]\large\boxed{100^{o}}[/tex]

∠C = 40° and triangle ABC is isosceles, therefore:

∠C = ∠A = 40°

Angles in a triangle sum up to 180°, so:

180 = 40 + 40 + ∠A

180 = 80 + ∠A

100 = ∠A

Thus, arc CB has a measure of 100°.

Pls Help!
Aimee wants to order some DVDs from Amazon. Each DVD costs $8.49 and shipping for the entire order is $5. She has only $70 to spend. How many DVDs can she order?

Answers

Answer:

she can buy 13

please brainliest or hear

Answer:

She can order 7 DVDS

Step-by-step explanation:

8.49 x 7 = 59.43

59.43 + 5 = 64.43.

What is the word form of the number 43.06? A forty-three and six B forty-three and six tenths c forty-three and six hundredths D forty-three and six thousandths​

Answers

it is C forty-three and six hundredths.

5= 1 over 3(x+7)
What is your answer

Answers

Answer:dddddd

Step-by-step explanation:

Uncle Howard left his only niece 56% of his assets according to his will. If his totaled assets
totaled
$564,000, when he died, how much will his niece inherit?

Answers

Answer:

$315,840.00

Step-by-step explanation:

$564,000 x 0.56 = $315,840.00

Answer:

$315,840

Step-by-step explanation:

56% of 564,000 is this

In the figure, Line a is parallel to line b. Name the angles congruent to angle 3.

helppp it’s due today

Answers

Go with what u think will help u

Write a system of linear equations.Write two-variable equations in slope-intercept form.

Answers

Answer:

A linear relation can be written in the slope-intercept form as:

y = a*x + b

Where a is the slope, and b is the y-intercept.

And if a line passes through the points (x₁, y₁) and (x₂, y₂), the slope can be written as:

a = (y₂ - y₁)/(x₂ - x₁)

Now let's look at our lines.

The left one passes through the points (0, -3) and (-2, 0)

Then the slope of this line is:

a = (0 - (-3))/(-2 - 0) = 3/-2 = -(3/2)

Then the line will be something like:

y = -(3/2)*x + b

Knowing that this line passes through the point (0, -3), we know that when x = 0, we must have y = -3

Then:

-3 = (-3/2)*0 + b

-3 = b

So the first linear equation is:

y = -(3/2)*x - 3

Now let's look at the second line, this one passes through the points (0, 2) and (1, 0)

Then the slope of this line is:

a = (0 - 2)/(1 - 0) = -2

And we can write the line as:

y = -2*x + b

Knowing that this line passes through the point (0, 2), we know that when x = 0 we must have y = 0, replacing that we get:

2 = -2*0 + b

2 = b

Then the equation of this line is:

y = -2*x + 2

Now that we know both equations we can write our system as:

y = (-3/2)*x - 3

y = -2*x + 2

To solve it, we need to remember that y = y

then:

(-3/2)*x - 3 = y = -2*x + 2

(-3/2)*x - 3  = -2*x + 2

We can solve this for x.

2*x - (3/2)*x = 2 + 3

(1/2)*x = 5

x = 5((1/2) = 5*2 = 10

And to find the y-value, we need to input this x-value in one of the equations:

y = -2*10 + 2 = -20 + 2 = -18

Then the solution of the system is the point (10, -18)

Help! Quick! Find the area of the composite figure

Answers

Answer:

60m

Step-by-step explanation:

To find the area of the triangle you multiply the base by height and divide by two, but we don’t know the base of the triangle!

Luckily, the bottom of the triangle is a rectangle. Rectangles are symmetrical, and the other side of the rectangle is 8.

So, the base of the triangle is 8.

Now let’s find the area of the triangle:

8 x 5 = 40

40/2 = 20

20 is the area of the triangle

Now, we must find the area of the rectangle!

The formula for rectangle area is just width x length:

8 x 5 = 40

Add them together:

40 + 20 = 60

Therefore, the area is 60m.

∫(cos3x+3sinx)dx integration​

Answers

(47)83-x (cos7y) + cos34

Answer:

[tex] I = \dfrac{1}{3}sin(3x) - 3cos(x) + C[/tex]

Step-by-step explanation:

We need to integrate the given expression. Let I be the answer .

[tex]\implies\displaystyle I = \int (cos(3x) + 3sin(x) )dx \\\\\implies\displaystyle I = \int cos(3x) + \int sin(x)\ dx [/tex]

Let u = 3x , then du = 3dx . Henceforth 1/3 du = dx .Rewrite using du and u .

[tex]\implies\displaystyle I = \int cos\ u \dfrac{1}{3}du + \int 3sin \ x \ dx \\\\\implies\displaystyle I = \int \dfrac{cos\ u}{3} du + \int 3sin\ x \ dx \\\\\implies\displaystyle I = \dfrac{1}{3}\int \dfrac{cos(u)}{3} + \int 3sin(x) dx \\\\\implies\displaystyle I = \dfrac{1}{3} sin(u) + C +\int 3sin(x) dx \\\\\implies\displaystyle I = \dfrac{1}{3}sin(u) + C + 3\int sin(x) \ dx \\\\\implies\displaystyle I = \dfrac{1}{3}sin(u) + C + 3(-cos(x)+C) \\\\\implies \boxed{\boxed{\displaystyle I = \dfrac{1}{3}sin(3x) - 3cos(x) + C }}[/tex]

which two quadrilaterals have 4 congruent sides

Answers

Answer:

rhombus and parallelogram .

Step-by-step explanation:

It’s a rhombus and parallelogram.

Hope this helps! :)

HELP ME PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS URGENTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT

Answers

9514 1404 393

Answer:

  90 m²

Step-by-step explanation:

The given linear dimensions have the ratio ...

  red/blue = (6 m)/(4 m) = 3/2

The ratio of areas is the square of the ratio of the linear dimensions:

  (red area)/(blue area) = (3/2)²

  S = (blue area)(9/4) = (40 m²)(9/4)

  S = 90 m²

Stacy opens an account with a deposit of $100. She deposits an additional $25 every week after opening the account. Determine how much money will be in her account after 15 weeks.

Answers

Answer:

$450

Explanation:

after 15 weeks, stacy would have deposited a total of $25 × (15 - 1) = $350. (remember to subtract 1 from the 15 weeks since she did not deposit $25 during the week she opened the account, but only after that.)

now, we need to add this to the original deposit: $100 + $350 = $450.

therefore, after 15 weeks, there would be $450 in her account.

i hope this helps! :D

I need help with this lol

Answers

Answer:

1350

Step-by-step explanation:

multiply

Other Questions
Write an argumentative essay for or against the idea of using controlled fires to protect wild areas Which statement best describes Andrew Jackson's response to the Supreme Court's decision in Worcester v. Georgia ? A. He ignored the Supreme Court's decision and forced the passage of the Indian Removal Act of 1830. B. He upheld the Supreme Court's decision because it reaffirmed the state of Georgia's right to relocate the Cherokee peoples C. He upheld the Supreme Court's decision because he was concerned that ignoring it could lead to impeachment D. He ignored the Supreme Court's decision and forced the Cherokee peoples to relocate west. Referring to Table 13-4, what fraction of the variability in house size is explained by income, size of family, and education? a)27.0% b)33.4% c)74.8% d)86.5% Knowledge Check 01 A company uses a periodic inventory system and during the December 31, year-end physical inventory count discovered that they have incurred a $300 shrinkage in inventory Prepare the necessary adjusting entry to record this shrinkage by selecting the account names from the pull-down menus and entering dollar amounts in the debit and credit columns. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list Journal entry worksheet A company uses a periodic inventory system and during the December 31, year-end physical inventory count discovered that they have incurred a $300 shrinkage in Inventory. Note: Enter debits before credits Date General Journal Debit Credit V al of the following statements, in which does rehabilitation psychology specialize? a. helping clients clarify goals and handle daily challenges b. helping students handle various learning and emotional problems c. helping patients overcome negative attitudes toward medical advice d. helping people with disabilities manage adjustment issues please select the best answer from the choices provided a b c d What is the final step in the enzyme-substrate complex? Do sister chromatids have the same sequence? Find the length of BD. Use that length of BC. Round to the nearest tenth What are the 3 main goals of America's foreign policy? The graph of y = is translated. The translation is defined by (x + 1, y 2).Which is the graph of the translated image?A B C D performance standards are used to: Why does voter turnout matter quizlet? What was FDR's program called that was meant to rebuild the American economy? in the signaling pathway shown, inositol triphosphate (ip3) acts as a second messenger. which of the following best describes how an increase of ip3 affects cellular response? influx of ca2 increases and leads to activation of other signaling pathways. ip3-gated calcium channels close and decrease cellular responses. phospholipase c increases its activity to produce more second messengers. signaling molecules stop binding to protein receptors until ip3 decreases. How much would you need to deposit in an account now in order to have $5,000.00 in the account in 1633 days? Assume the account earns 42% simple interest.You would need to deposit ___in your account now. 5+2 x 3. for this question I have put 16 but apparently its incorrect Why are client/server networks usually installed in businesses?A. Client/server networks are cheaper to install.B. Security is weaker on client/server networksC. They do not require dedicated servers like P2P networks.D. They are more scalable than P2P networks. What age do you have to file taxes? Here are the dimensions of two designs for a sandbox for the primary playground. Each sandbox is a rectangular prism. One design is 3 m by 3 m by 30 cm.A second design is 3.25 m by 3.25 m by 25 cm.a) Sketcheachsandbox.Includeitsdimensions.b) Compare the designs. For each design, calculate the areaof material needed to build it and the volume of sandit will hold.c) Whichsandboxshouldbebuilt?Justifyyouranswer. Write an essay about agricultural, industrial, and personal uses of water. Include ways that they can conserve water during these practices. Make sure you have an introduction and conclusion paragraph. Each paragraph should be at least 4-5 sentences long.