Simplify the expression to a + bi form:
(-8 – 9i)2

Answers

Answer 1

Answer:

-17+144i

Step-by-step explanation:


Related Questions

Help with this question! It’s for math

Answers

Answer:

174 [tex]mi^2[/tex]

Step-by-step explanation:

area of the top rectangle: 7 x 8 = 56 [tex]mi^2[/tex]

area of the bottom rectangle: 4 x 13 = 52 [tex]mi^2[/tex]

area of the triangle: [tex]\frac{1}{2} (11)(12)[/tex] = 66 [tex]mi^2[/tex]

add it all up: 56 + 52 + 66 = 174 [tex]mi^2[/tex]

Shark tank A contains 9.2 gallon Tof water. Sarah will begin filling tank A at a rate of 2.4 gallons per minute. Shark tank contains 109.2 gallons of water. Bella will begin draining tank B at a rate of 1.6 gallon per minute. After how many minutes will both tanks contain the same amount of water?​

Answers

Answer:

25 minutes

Step-by-step explanation:

let x = number of minutes

the following equation can be derived from the question

9.2 +  2.4x = 109.2 - 1.6x

the equations are equated together because it is expected the gallons of water in both tanks would be equal after sometime

collect like terms

2.4x + 1.6x = 109.2 - 9.2

4x = 100

x = 100/4 = 25 minutes

if the opposite angle of rhombus are (2x)°and (3x-40°) then what is the value of x?

Options :
A. 100°
B.80°
C.160°
D.40°​

Answers

C I don’t know actually

Which statements are TRUE about the graphs?

Answers

Answer:

there is no graph

Step-by-step explanation:

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Question Progress
Homework Pro
Work out the value of 10 squared – 4 cubed
Give your answer as a power of 6.

Answers

Answer:

6^2

Step-by-step explanation:

10^2  -4^3

100 - 64

36  = 6^2

A parabola with a vertex at (0,0) has a directrix that crosses the negative part of the y-axis.
Which could be the equation of the parabola?
A. x² = –4y
B. x² = 4y
c.y² = 4x
D.y² = –4x

Answers

Answer:

A parabola can be represented by the equation x2 = -20y. ... (0,-2). The directrix of the parabola is represented by y = 2. ... A parabola, with its vertex at (0,0), has a focus on the negative part of the y-axis. ... The directrix will cross through the positive part of the y-axis. ... Which graph represents the equation y2 = -4x? A ...

Step-by-step explanation:

yeiii

A full set of adult teeth has 160% as many teeth as a full set of baby teeth. How many teeth are there in a full set of adult teeth if there are 20 teeth in a full set of baby teeth

Answers

Answer:

The adult has 32 teeth

Step-by-step explanation:

20*.1.60=32

Answer:

32

Step-by-step explanation:

100% - 20   60% (20x0.60) 12 20+12 32

Can anyone please help me to do this with steps

Answers

9514 1404 393

Answer:

  x = 45°

Step-by-step explanation:

We presume you want the measure of angle x.

Long arc BAD is intercepted by inscribed angle BCD and by inscribed angle BDE. Hence angle BDE has the same measure as angle BCD.

  x + 70° = 115°

  x = 45° . . . . . . subtract 70°

_____

It doesn't matter where point C is on short arc BD—the measure of angle C is the same regardless. This is still true even if point C moves to be on top of point D, so that angle BCD and angle BDE are indistinguishable.

find the area of the figure. (3.14 for pi)

Answers

Answer:

140

16x8=128

12-8=4

16-10=6

6x4=24

24/2=12

12+128=140

PLS I NED HELP PLS PLS PLS
ODE TO AN OTTER
I ought to be an otter, ‘cause when all is said and done
I could play along the riverbank, or stretch out in the sun.
I’d swim beneath the water, or backstroke up on top.
I’d dive in like a graceful swan, or do a belly flop.
My days would be so peaceful as a furry, swimming mammal
As opposed to bearing burdens like a one-humped desert camel.
I wouldn’t want to herd sheep like a working collie dog
Or end up an amphibian—a turtle, toad, or frog.
But oh, to be an otter! It would be a stroke of luck
Just to spend all day a-swimmin’, or a-rollin’ in the muck.
But oh, as fate would have it, I’m required to spend my time
Doing schoolwork. What a pity. It seems like such a crime.
The month of May has ended, and all across the nation
The schools have shut their doors, and all of the kids are on vacation.
Yet here it’s still the school year, and it can’t end too soon,
But the days are standing still, stretching till the end of June.
Ah, the otter, who, when sunshine makes the heat rise at the shore,
Stays within its coolsome burrow, eating clams and snails and more.
It swims along the river, catching crayfish, frogs, and trout.
I’d be an awesome otter—of that I have no doubt. Right now I watch the summer tapping at each window pane
And count the days till school is out, and I can swim again.
I’ll walk in glorious mud that squeezes coolness through my toes
And skip along the river, free from tests and schoolwork woes.
Till then, I’ll be an otter, but only in my head,
And start the summer early there, along the riverbed.
‘Cause if I was an otter and could romp and roll and roam,
I wouldn’t have to think of what to write for my class poem.



My days would be so peaceful as a furry, swimming mammal / As
opposed to bearing burdens like a one-humped desert camel.

What does the word burdens mean in the sentence above?

A. doubts
B. feelings
C. objects
D. rivers



Yet here it’s still the school year, and it can’t end too soon, / But the
days are standing still, stretching till the end of June.

What does the author mean by the phrase the days are standing still?

F. The days seem to pass by slowly.
G. The days are full of difficult work.
H. The speaker’s school day is longer than at most schools.
I. There are more school days left than the speaker thought.





I’ll walk in glorious mud that squeezes coolness through my toes / And
skip along the river, free from tests and schoolwork woes.

How would the effect of these lines be different if the author had used the word
walk instead of skip?

A. The speaker would seem less carefree.
B. The speaker would seem more friendly.
C. The speaker would seem to miss school.
D. The speaker would seem less serious.



What effect does the author’s use of language such as ‘cause, a-swimmin’, and
awesome create in the poem?

F. It makes the speaker sound casual.
G. It makes the speaker sound persuasive.
H. It makes the speaker seem caring toward all animals.
I. It makes the speaker seem knowledgeable about otters.



The end of the poem is ironic because the speaker.

A. decides to write a poem about an otter.
B. turns into an otter and swims away from school.
C. changes her mind and doesn’t want to be an otter.
D. has finished the poem that seemed too hard to write.

Answers

Answer:

what is the question???

Step-by-step explanation:

15b>75.Substitute 5 for b

True or False

Answers

Answer:

False

Step-by-step explanation:

False

15*5 =75

So, 75=75

Consider this data set: {49, 50, 45, 23, 35, 66, 34, 74, 54, 50}
The mean is:
The median is:
The mode is:
The range is:

Suppose the value 60 is added to the data set.

The mean increases by:
The median increases by:
The mode is:
The range is:

(PLS Copy and Paste this whole thing in your answer and write the answers)

Answers

Answer:

the mean is:48

the median is:35 and 66

the mode is:50

the range is:51

Step-by-step explanation:

the mean =(49+50+45+23+35+ 66+34+74+54+50) over 10 which is equal to 480 over 10 and the answer is 48

the median =the two nunber in the middle since the numbers are even

the mode is the number that repeat it self and 50 repeated 2 time

the range=74-23=51

(ps: I only know the first part of the questions)

An aquarium holds 11.65 cubic feet of water and is 2.2 feet long and 1.6 feet wide. What is its depth? Round your answer to the nearest whole number.

Please I need it for my test

Answers

Yes they just need a new one and a couple more dollars to make sure they have a new one in my room so you don’t know how much I need them for me

Find the product of the elements on the main
diagonal of matrix A:
d1 = (a11)(a22)

Answers

Answer:

24

Step-by-step explanation:

thats right

The solution is d₁ = 24

The product of the elements on the main diagonal of the matrix is 24

What is multiplication of matrices?

The product of two matrices A and B is defined if the number of columns of A is equal to the number of rows of B. The first matrix must have the same number of columns as the second matrix has rows. The number of rows of the resulting matrix equals the number of rows of the first matrix, and the number of columns of the resulting matrix equals the number of columns of the second matrix

Given data ,

Let the matrix be represented as A

Now , the value of A is

[tex]A = \left[\begin{array}{ccc}3 &2 \\ 5 &8 \\\end{array}\right][/tex]

Now , on simplifying the matrix A

The main diagonal of the matrix is having the elements ( a₁₁ ) and ( a₂₂ )

So , the product of the elements in the main diagonal is

a₁₁ = 3

a₂₂ = 8

And , the equation will be

d₁ = ( a₁₁ ) x ( a₂₂ )

Substituting the values in the equation , we get

d₁ = 3 x 8

d₁ = 24

Therefore , the value of d₁ is 24

Hence , the product of the diagonal elements of matrix is 24

To learn more about multiplication of matrix click :

https://brainly.com/question/13198061

#SPJ2

a 42 inch diameter tablecloth that hangs off the edge 8 inches. what is the area of the tablecloth use 3.14 for pi​

Answers

Answer: 1384.74

Step-by-step explanation:

A=πr^2

radius=42/2=21

(3.14)(21)^2

3.14(441)

1384.74

Jon wants to make a tent that is in the shape of a square pyramid. If the length of the square is 5 feet and the height of the tent is 6 feet, how much space will be in the tent? (Do not include the units).

Answers

It is 300

Step-by-step explanation:

6*5 multiply them   times bye 2

Help please I’m not sure what do do with these kind of problems

Answers

Answer:

c

Step-by-step explanation:

Answer:

Complementary angles are 90 degrees, and supplementary angles are 180 degrees.

Step-by-step explanation

First you figure out the answer to the equation,then once u figure out the answer,you subtract it by 90 but, only subtract the complementary angles by 90. Afterwards,you do the same thing for finding the measure to B.

use the pre image to find the coordinates. PLEASE HELP DUE BY 10:15

Answers

Answer:

m(3,1)

j(0,0)

E(0,-1)

x(5,0)

If you were able to pay off and get rid of all of your debt, what is that called?

Answers

Debt free because you have no debt so you would say I’m debt free

What is the range for the graph shown?

A) -3 ≤ y ≤ 2

B)-3 and 2

C) -3≤ y ≤ 3

D)-2≤ y ≤ 3​

Answers

I think the answer is B. If I’m wrong someone plz let me know in the comments

Describe the expression. 2 * 5+7(3 + 13) Which of the following describes 7 in the expression above? 디 A. factor B. sum C. quotient D. product​

Answers

Answer:

A Factor

Step-by-step explanation:

In the expression given, '7' would be getting multiplied by (3+13). Therefore, 7 is a factor.

Hope this helps.

Which equation best represents the relationship between 3 and y in the graph?
у
91
8
7
6
5
3
-2
1
-7-5-5
-2-1
1
3
4 5
6
-2
2

Answers

Answer:

me no englis

Step-by-step explanation:sorry

"All real numbers" could be used to describe the x-
values of the graph? A. False b.true

Answers

Answer:

True

Step-by-step explanation:

Brainliest?

True bc as you go along the horizontal (side to side) line or the x-axis, the x values never stop therefore they are all real numbers. can also be (negative infinity, positive infinity)

I need help with the Pythagorean Theroem, Anyone trying to help?

Answers

the formula is a^2+b^2 =c^2
What exactly do u need help with?

Answer:

a^2 + b^2 = c^2

Step-by-step explanation:

A squared plus b squared equals c squared is the pythagorean theorem. You can plug in the numbers to get the answer

Which of the following expressions is represented by the number line below?
A. -6 - 5
B. 6 + (-4)
C. -6 + 4
D. 6 - (-4)

Answers

The answer is c if your in ed2020

Find the area of a rectangle with a base of 3 yards and a height of 4/7 yards.

Answers

area of rectangle = length x width
in this case we multiply the base and height
3 x 4/7
= 3/1 x 4/7
= 12/7
mixed fraction = 1 5/7

Answer:

Area=12/7square yard

Step-by-step explanation:

Area=base x height

Area=3x4/7=12/7 square yard

if x-1/3=k and k=3 what is the value of x

Answers

Answer:

x=10/3

Step-by-step explanation:

hope that helps

can you help me with this, please? ​

Answers

Your answer in the photo is right so I don't understand what you want

Which section or sections represent what is not in set HH?

Answers

Answer:

2) Sections 3 and 4

Step-by-step explanation:

Section 1 represents what ONLY applies to set HH, section 2 represents what is in BOTH set HH and Set C. So they are automatically out of the question.

Section 3 and 4, however, apply to either set C, or no set at all!

~~~~~~~~~~~~~~

Have a nice day fam. Spread The Love.

Mary made two 8 ounce drinks each in a separate cup. The first cup has 4 ounces f coffee and four ounces of milk. The second cup has 6 ounces of coffee and 2 ounces of milk. After she stirred the two drinks really well, she took out a third cup that was empty. She poured 2 ounces from the first cup ad 4 ounces from the second cup into the third cup. How many ounces of coffee are in the third cup

Answers

Answer:

6 ounces

Step-by-step explanation:

First cup = 4 ounces of coffee + 4 ounces of milk

= 8 ounces drink

Second cup = 6 ounces of coffee + 2 ounces of milk

= 8 ounces drink

She poured 2 ounces from the first cup and 4 ounces from the second cup into the third cup.

Third cup = 2 ounces from the first cup + 4 ounces from the second cup

= 2 + 4

= 6 ounces drink

Ounces of coffee are in the third cup = 6 ounces

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