The number $16$ has four fourth roots. In other words, there are four complex numbers that can be entered in the square in the equation below:\[\square^4=16.\] Find them.

Answers

Answer 1

9514 1404 393

Answer:

  {2, 2i, -2, -2i}

Step-by-step explanation:

Fourth roots of positive real numbers are always on the cardinal points of the complex plane. The positive real fourth root of 16 = 2^4 is 2. The others are this multiplied by various powers of i.

  2, 2i, -2, -2i


Related Questions

BRAINLIEST TO RIGHT ANSWER!

Answers

Answer:

12 and 12

Step-by-step explanation:

can I get help with some algebra polynomial in standard form​

Answers

Step-by-step explanation:

Standard form :

1. = x⁴ - 2x² + 3

2. = 5m³ - 3m² + 9m - 7

hope this will be helpful for you and plzzz mark my answer as brainlist plzzzz vote me also....

What are the answers to these two ? HELP PLEASE

Answers

Answer:

1. D     2. A

Step-by-step explanation:

Can I have Brainllest answer Please I need It.

The radius of a circle is 1 foot what is the circle's area USE 3.14 FOR PI​

Answers

Answer:

Step-by-step explanation:

the area of the circle:

A= 3.14 x r^2

A=3.14 x1=3.14 ft^2

13=4k+9 can someone plz help me figure this out it is killing me

Answers

Answer:

k = 1

Step-by-step explanation:

so we basically have to solve for k

13 = 4k + 9

subtract 9 from both sides

4 = 4k

divide both sides by 4 to get k by itself

4/4 = 1

4k / 4 = 1k = k

1 = k

hope this helps <3

Sarah reads 51 pages in 17 days.
Sarah's unit rate is _________ pages per day.
Must show work!

Answers

Answer:

sarah is a slow reader.....51/17=3

so she reads 3 pages per day

Step-by-step explanation:

Can you show the working out

Answers

So first u add 1/4 to 1/4 to get how much each cat eats eats day and combine it:

1/4+1/4=1/2

So her cats eat 1/2 a tin of cat food every day.

Next we will try to find the unit rate:

1/2 • 2 = 1

So it takes her cats 2 days to eat 1 tin multiply 2 by 9 because 9 tins and 2 days for 1 tin

2 • 9 = 18

18 days for 9 tins of cat food is the answer

Which ratio is less than 7/15?

1. 9/15
2. 2/5
3. 3/5
4. 24/45

Answers

Make all common denominator
9/15, 6/15, 9/15, 8/15
Solution: 2. 2/5
2/5=6/15 and that is less than 7/15

3x + 5y = 25
x - 2y = -6
______This equation can be solved for _____
easily.

Answers

it can be solved for y easily

Do you guys know this one if so comment the down the answers that all apply in the can't tysm!

Answers

Answer:

7 to the fourth power, 7*7*7*7 , and 7^4

Step-by-step explanation:

Answer:

7 x 7 x 7 x 7

7 to the fourth power

7^4

Step-by-step explanation:

kinda need this and my brain wont work today

Answers

-1*(2*2*(-3)*4*4)=
=-1*(-3)*4*16=
=3*64=192

(I need the work too please!)
The yearly cost for cross-fit classes is $250 more than yoga classes. And, the
yearly cost for a gym membership is $100 more than yoga classes. Combined,
the cost for all the different plans are $1250. Determine the cost of the gym
membership, yoga, and cross-fit classes.

Answers

Answer:

I am not sure if this was the correct method to solve the question, however it gives the right results if you check it.

Step-by-step explanation:

3x+250+100=1250

3x= 900

x=300

yoga: 300, cross fit: 550 (300+250), gym: 400(300+100)

This is also a rational and irrational worksheet so which one would it be?

Answers

if you calculated it you would get 20.25 so it is irrational

The equation of the line that contains diagonal HM is y = 2/3 x + 7.
What is the slope of the line that contains diagonal OE?

Answers

Answer:

The slope of the line that contains diagonal OE will be = -3/2

Step-by-step explanation:

We know the slope-intercept form of the line equation

y = mx+b

Where m is the slope and b is the y-intercept

Given the equation of the line that contains diagonal HM is y = 2/3 x + 7

y = 2/3 x + 7

comparing the equation with the slope-intercept form of the line equation

y = mx+b

Thus, slope = m = 2/3

We know that the diagonals are perpendicular bisectors of each other.

As we have to determine the slope of the line that contains diagonal OE.

As the slope of the line that contains diagonal HM = 2/3

We also know that a line perpendicular to another line contains a slope that is the negative reciprocal of the slope of the other line.

Therefore, the slope of the line that contains diagonal

OE will be = -1/m = -1/(2/3) = -3/2

Hence, the slope of the line that contains diagonal OE will be = -3/2

which of the following recursive formulas represents the same arithmetic sequence as the explicit formula an= -2 + (n-1)3?

Answers

Answer: C.[tex]\left \{ {{a1=-2} \atop {an=a(n-1)+3}} \right.[/tex]

because it is the arithmetic progression with d = 3

=> a(n) = a1 + (n - 1).3

so, have: a1 = -2

               an = a(n-1) + 3

Step-by-step explanation:


What is the slope of the line below? If necessary, enter your answer as a
fraction in lowest terms, using the slash (/) as the fraction bar. Do not enter
your answer as a decimal number or an equation.
10+
(4,8)
Answer here
(2, 2)
5
10
15
5
10

Answers

Answer:

what

Step-by-step explanation:

The Slope of line (1, 1) and (3, 9) is 4.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

The Figure of the graph is attached below.

We have the Coordinates as (1, 1) and (3, 9).

So, the slope of line

= (9- 1)/ (3-1)

= 8/ 2

= 4

Thus, the slope of line is 4.

Learn more about Slope here:

https://brainly.com/question/3605446

#SPJ7

Complete the explanation of how an estimate helps you to place the decimal point when multiplying 1.8 × 5.4.

Answers

Wherever the place is on the problem is where you put it in the solution, therefore the answer is 9.72 . hopefully this h be

∠A and \angle B∠B are vertical angles. If m\angle A=(5x-2)^{\circ}∠A=(5x−2) ∘ and m\angle B=(3x+12)^{\circ}∠B=(3x+12) ∘ , then find the value of x.

Answers

Answer:

x = 7

Step-by-step explanation:

From the above question, we are told that:

∠A and ∠B vertical angles.

It is important to note that vertical angles are equal to each other

Hence:

∠A = ∠B

From the question,

∠A = (5x−2)°

∠B = (3x+12)°

Hence:

(5x−2)°= (3x+12)°

5x - 2 = 3x + 12

Collect like terms

5x - 3x = 12 +2

2x = 14

x = 14/2

x = 7

Answer:

X=14

Step-by-step explanation:

Choose the correct preposition to complete the sentence. To facilitate a quick getaway, the cunning thief parked the car perpendicular the building.

Answers

Answer:

The answer is TO

Step-by-step explanation:

Answer:

C. To

Step-by-step explanation:

edg 2020

I AM OFFERING FREE TUTORING. I am in algebra two so i can help with almost all math up to that. If you are in a higher math but you need help, just lmk and give me a day or so (or at least a couple hours) with what you need help with and i can study some material and try my best to help you. just comment on this or answer it and lmk when and for what you need help with.

Happy holidays everyone and stay safe!!

Answers

Answer:

Hi again! Hope you are well. Could you help me with this? One of them is wrong but I can't figure out which one.

Maria throws a softball straight up into the air with an initial velocity of 50 ft/sec. The ball leaves her hand when it is exactly 4 ft. Above the ground. Write an equation that models the situation.

Answers

Answer:

The equation that models the situation is [tex]s_{f} = 4+\frac{v_{f}^{2}-2500}{64.348}[/tex].

Step-by-step explanation:

Let suppose that effects from air friction and Earth's rotation can be neglected, so that the softball can be modelled experiment a free fall, that is, an uniform accelerated motion due to gravity. From we know the initial velocity and position of the position and we can determine the final position of the ball as a function of the final velocity:

[tex]v_{f}^{2} = v_{o}^{2}+2\cdot a \cdot (s_{f}-s_{o})[/tex] (1)

Where:

[tex]s_{o}[/tex], [tex]s_{f}[/tex] - Initial and final position of the softball, measured in feet.

[tex]a[/tex] - Acceleration, measured in meters per square second.

[tex]v_{o}[/tex], [tex]v_{f}[/tex] - Initial and final velocities of the softball, measured in feet per second.

If we know that [tex]v_{o} = 50\,\frac{ft}{s}[/tex], [tex]a = -32.174\,\frac{m}{s^{2}}[/tex] and [tex]s_{o} = 4\,ft[/tex], then the equation that models the situation is:

[tex]v_{f}^{2} = 2500-64.348\cdot (s_{f}-4)[/tex]

Then, we clear the final position of the softball:

[tex]-\frac{v_{f}^{2}-2500}{-64.348} = s_{f}-4[/tex]

[tex]s_{f} = 4+\frac{v_{f}^{2}-2500}{64.348}[/tex]

The equation that models the situation is [tex]s_{f} = 4+\frac{v_{f}^{2}-2500}{64.348}[/tex].

A cake recipe calls for 1.5 cups of milk and 3 cups of flower. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

Answers

Answer:

2.5 cups of milk

Step-by-step explanation:

Given that,

A cake recipe calls for 1.5 cups of milk and 3 cups of flower.

Seth made a mistake and used 5 cups of flour.

We need to find number of cups of milk he use to keep the proportions correct. Let he used x cups of milk.

[tex]\dfrac{1.5}{3}=\dfrac{x}{5}\\\\x=\dfrac{1.5\times 5}{3}\\\\x=2.5[/tex]

Hence, he should use 2.5 cups of milk.

answer with work please

Answers

Answer: 1. 4

2. 12

3. 6

4. 8

Step-by-step explanation:

Barb is making a bead necklace. She strings 1 white bead, 3 blue bead, then 1 white bead, and so on. Write the numbers for the the eight beads that are white. What is the rule for the pattern?

Answers

Answer:

1,5,9,13,17,21,25,29

Step-by-step explanation:

From the information given.

Let represent the number of white beads with x and the number of blue beads with y. So, the beads can be illustrated as:

bead   color

1             x

2            y

3            y

4            y

5            x

6            y

7            y

8            y

Suppose n denotes the no. of beads that are white.

Then the subsequent no is ( n + 4).

Since the first number n = 1

Then the subsequent numbers will follow the pattern of adding 4 to the number.

i.e.

n = 1 + 4 = 5

n = 5 + 4 = 9

n = 9 + 4 = 13

n = 13 + 4 =1 7

n = 17 + 4 = 21

n = 21 + 4 = 25

n = 25 + 4 = 29

Thus, the number for the first eight beads that are white are:

1,5,9,13,17,21,25,29

The pattern shows odd numbers only.

If the length of a rectangle is 3 time longer than
width. find the length of width if its area is
270.cm?​

Answers

Answer:

30 cm

Step-by-step explanation:

Latoya needs to make a total of deliveries this week. So far she has completed of them. What percentage of her total deliveries has Latoya completed?

Answers

Answer: 35%

Step-by-step explanation:

You did not give the numbers. Let me help out by giving some figures and explain with that.

Latoya needs to make a total of 60 deliveries this week. So far she has completed 21 of them. What percentage of her total deliveries has Latoya completed?

To solve this, we divide 21 by 60 and then multiply by 100. This will be:

= (21 / 60) × 100

= 7/20 × 100

= 35%

The height of a triangle is 7 cm and the height of a similar triangle is 21 cm. How much larger is the
area of the larger triangle?

Answers

Answer:I'm pretty sure the ratio is 3:1

Step-by-step explanation:

Each triangle weighs 2.5 pounds,each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger.

Answers

Step-by-step explanation:

x+x+x+x+2.5(2)+3(2)=x+x+2.5+3(3)

4x+5+6=2x+2.5+9

4x+11=2x+11.5

-11         -11

4x=2x+0.5

-2x    -2x

2x=0.5

x=0.25

The equation that can be used to represent the hanger is x + x + x + x + 11 = x + x + 11.5, and 4x + 2.5 + 2.5 + 6 = 2x + 2.5 + 3 + 3 + 3

Given:

Each triangle = 2.5 pounds

Each circle = 3 pounds

Each square = x pounds

The hanger has two sides

Side 1:

squares = 4

Triangle = 2

Circle = 2

Side 2:

Squares = 2

Triangle = 1

Circle = 3

The equation:

side A = side B

4(x) + 2(2.5) + 2(3) = 2(x) + 1(2.5) + 3(3)

4x + 5 + 6 = 2x + 2.5 + 9

4x + 11 = 2x + 11.5

x + x + x + x + 11 = x + x + 11.5

Therefore, equation that can be used to represent the hanger is x + x + x + x + 11 = x + x + 11.5, and 4x + 2.5 + 2.5 + 6 = 2x + 2.5 + 3 + 3 + 3

Read more:

https://brainly.com/question/16450098

Tori bought 24 candy bars for 69 cents each. She used partial products to find the total cost in cents. Which are NOT possible partial products for 24 × 69? Choose all that apply. A. 24 B. 36 C. 180 D. 240 E. 1,656

Answers

Answer:

B. 36 C. 180 D. 240 E. 1,656

Step-by-step explanation:

Partial product is the multiplication of individual digit of a number in turn with each digit of the others where each digit maintains its place.

Using distributive property to multiply 24 × 69 to determine our partial products:

i.e.

24 × 69 = 24 × (60 + 9)

= (24 × 60) + (24 × 9)

= 60 (20 + 4) + 9(20 + 4)

So; we can have:

= (60 × 20) + (60 × 4) + (9 × 20) + (9 × 4)

= 1200 + 240 + 180 + 36  

= 1656

Which is a better deal and why? And find the unit rate for both if you wanna help pls

Answers

Unit rate = cost / quantity

Lower unit rate is better deal.

3.50/10 = 0.35

2.40/6 = 0.40

The original 10 for 3.50 is the better deal.

Answer:

As we know that

Unit = Rate/Quantity

[tex] \tt \: \dfrac{3.50}{10} = 0.35[/tex]

[tex] \tt \dfrac{2.40}{6} = 0.40[/tex]

The original deal was better because it was cheap than new deal.

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