What is the value of (7 +21)(3 - i)?

Answers

Answer 1
(7+21)=28

28(3-I)=

28•3 =84

28•I=28i

28/84=3,5

3,5=I

Related Questions

i will give brainilist to the first person who wants to do my delta math

Answers

what's ur username lol

7(2 - 3x) - 10
Simplify expressions

Answers

Answer:

4-21x

Step-by-step explanation:

Sarah works 6 hours a day, Monday through Friday. What is her pay for a week?

Answers

Answer:

No one can answer unless you include the money per hour or day or week

Step-by-step explanation:

Answer:

well she works 5 days since it says monday through friday so 5 x 6 =30 she works 30 hours a week but you didnt out how much she early for each hour or one day so thats all you can figure out

Step-by-step explanation:

SOMEONE PLEASE HELP WILL MARK BRAINIEST PLEASE I AM NOT VERY GOOD AT MATH I NEEEED HELPPPPPP

Answers

Answer:

5150

Step-by-step explanation:

120000/3= 40000

40000*.12875= 5150

YALL HELP PLEASE THANK U

Answers

Answer:

I am not getting this question

Step-by-step explanation:

Given Vertex (5,4) and focus (8,4)

It can be easily noticed that focus and vertex lie on the same horizontal line y = 4

Obviously, the axis of symmetry is a horizontal line ( a line perpendicular to y-axis). Also, the focus lies to the right of the vertex so the parabola will open up rightward.

(y−k)^2=4a(x−h)

a=8-5=3 as y coordinates are the same.

Since the focus lies to the left of vertex, a = 3

(y−4)^2=4⋅3⋅(x−5)

(y−4)^2=12(x−5)

is the equation of the parabola.

Anna has more money than Betty. If Anna gave Betty $200, then they would have the same amount of money. While if Betty gave Anna $220, Anna would then have twice as much as Betty. Calculate the amount of money each girl has using the substitution method

Answers

Answer:

Anna has $1460

Betty has $1060                                                      

Step-by-step explanation:

let Anna's money be x

and Betty's money be y

If Anna gave Betty $200, then they would have the same amount of money

Anna's money will reduce by 200

x=x-200

Betty's money will increase by 200

y= y+200

if they have the same amount of money, the difference will be zero

x-200=y+200

x-200-y-200=0

x-y-400=0

x-y=400--------------1

this means that Anna has $400 more than Betty

if Betty gave Anna $220, Anna would then have twice as much as Betty.

Betty's money will reduce by 220

y=y-220

Anna's money will increase by 220

x=x+220

Anna's money will double that of Betty's

x+220=2(y-220)

x+220= 2y-440

x=2y-440-220

x=2y-660--------------------2

put x= 2y-660 in eqn 1

(2y-660)-y=400-------------------------1

2y-y=400+660

y= 1060

so Betty has $1060

put y= 1060 in eqn 1

x-y=400

x-1060=400

x=400+1060

x=1460

so Anna has $1460


+Which number should you put in question mark ?
53 (3) 59
92 (4) 98
34 (2) 38
71 (?) 79

+Answer
A : 1
B : 5
C : 7
D : 9
E : no answer



Answers

Answer:

what is this I can't understand???

use the distribute property to rewrite the following expression (6+15). your final answer should be in the form _(_+_).

what's in the blanks? ​

Answers

Answer:

3(2+5)

Step-by-step explanation:

The common number that both 6 and 15 can be divided by is 3

3x2=6 and 3x5=15

ABCD is a parallelogram which statements are true

Answers

2nd one and 4th one are the correct answers



Tell me if I’m right or wrong
I think ur right? I’m not sure tho.

Is y a function of x? Or not?
And explain?

Answers

Answer:

Y is NOT a function of X

Step-by-step explanation:

I guess this because it doesn't go in a pattern.

six celebrity starring in a popular sitcom that has a 12-show season of each page $750,000 per episode additional cost of producing a sitcom total $275,000 per episode. A 12- show reality series cost $350,000 so produce each episode. What is the difference between the total cost to produce the sitcom and the reality series?
Answers: A is $53,100,000.00 B is $4,200,000.00 C is $57,300,000.00 and D is $61,500,000.00

Answers

Answer:

Choice A

Step-by-step explanation:

YW

hi ok pls help me 78/90 divided by - 68/190

Answers

Answer:

-0.00006707946

Step-by-step explanation:

I just looked up the equation and this came up on a calculator. Next time just look it up on google. :) Have a nice night

P(2-r)-17=109 what is the answer

Answers

Answer:

                              126

                    P = -------------

                              2 - r

Step-by-step explanation:

Solve for P:  P(2-r)-17=109

Combining the constant terms:

                     P(2 - r) = 126

Dividing both sides by (2 - r) isolates P:

                              126

                    P = -------------

                              2 - r

please tell me if my answers are right

Answers

Yeah I’m PREETY sure

Find the height of a triangle with a base of 4 1/4 cm and an area of 5 5/16 cm squared

Answers

Answer:

hb=2.5

Step-by-step explanation:

base = 4

area  =  5

PLEASE HELP!!! THIS IS 25 POINTS!! ILL MARK BRAINLIEST PLEASE HELP!

Answers

I don’t understand it :(

Chad worked for 4 3/5 hours and earned $34.73.

How much would he make if he worked for 6 1/5 hours?

Enter your answer in the box.

$

Answers

Answer:

2.3

Step-by-step explanation:

Identify the correct definition of the term. Angle​

Answers

Answer:

In geometry, an angle can be defined as the figure formed by two rays meeting at a common end point. An angle is represented by the symbol ∠. ... Angles are measured in degrees, using a protractor.

Step-by-step explanation:

What is the y-intercept of this line?

Answers

Answer:

(0, 3)

General Formulas and Concepts:

Algebra I

The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.

Step-by-step explanation:

According to the graph, the line passes the y-axis at 3. Therefore, our y-int is (0, 3).

Answer:

3

Step-by-step explanation:

Each line represents one unit, so if we count up from the origin, or (0, 0), up until we get to the y-intercept, we count a total of 3 lines. That means the y-intercept is at (0, 3). We can just simplify this to 3, though. I hope this helps!

What's the value of 6.8(98.44−84.29)+33.1??

Answers

Answer:

129.32

Step-by-step explanation:

You multiply 6.8 by both values in the parenthesis and then subtract that number and lastly, take that value and add it to 33.1 which equals 129.32

129.32 hope this helps.

Han earned $850 over the summer working odd jobs. He wants to put his money into a savings account for when he is ready to buy a car. His bank offers a simple interest account at 5%, how much interest will Han have earned after 2 years?

Answers

Answer:

85 in intreset and 935 totoal

Step-by-step explanation:

Answer:

A = $935.00

I = A - P = $85.00

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year.

Solving our equation:

A = 850(1 + (0.05 × 2)) = 935

A = $935.00

The total amount accrued, principal plus interest, from simple interest on a principal of $850.00 at a rate of 5% per year for 2 years is $935.00.

Answer:

85

Step-by-step explanation:

As I said, I’m bad at math but I need a bit more help!

Answers

Could you show the problem? I am also bad at math but showing the whole problem might give you the right answer

HELP PLEASE Which of these mappings is a function?

Answers

Answer:

B; x is the one that's a function because for every input there is one output. for all the other ones a x-value has two y-values and that's not function.

Step-by-step explanation:

Write an equation, please help

Answers

Answer:

y = -6/5x + 2

Answer:

5\6x-2

Step-by-step explanation:

Y=(10-6x)\5

Y= 2-6\5x

Slope of line 1 = -6\5

Slope of line 2*(slope of line 1 )= -1

Slope of line 2 *-6\5=-1

Slopes of line 2 = 5\6

(X-x0)m = y-y0

(X-6)*5\6=y-3

5\6x -5 = y-3

Y= 5\6x -2

marking brainliest to whoever gives me the right andwe

Answers

-1 + 14x = 12x +17
x = 9

Plz help me answer this

Answers

Answer:

(-2, -8)

x = -2

y = -8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

13x - 6y = 22

x = y + 6

Step 2: Solve for y

Substitution

Substitute in x:                              13(y + 6) - 6y = 22Distribute 13:                                 13y + 78 - 6y = 22Combine like terms:                      7y + 78 = 22Isolate y term:                                7y = -56Isolate y:                                         y = -8

Step 3: Solve for x

Define original equation:                    x = y + 6Substitute in y:                                     x = -8 + 6Add:                                                      x = -2

A wire is needed to support a vertical pole 4 feet tall. The cable will be anchored to a stake 3 feet from the base of the pole. How
much cable is needed?
4 ft
3 ft
A cable of length
feet is needed.
Enter your answer in the answer box.

Answers

Answer:

I think its 5 feet

Step-by-step explanation:

I used Pythagorean theorem

Expanding each integer in the expression 21 × 12, the result is [(2 × 101) + (1 × 100)] × [(1 × 101) + (2 × 100)]. Replace the 10s with x’s and then multiply this expression using FOIL. Compare it with the normal integer multiplication method used above: How are they similar? Show your work.

Answers

bxjabcbkbkebwjbckjwStep-by-step explanation:

Answer:

this is step up very weird could you set it up a bit clearer?

Step-by-step explanation:

if you are sitting in a room with ten people and 39% of them leave how many people would be left?

Answers

Answer:

69

Step-by-step explanation:

yes

Answer:

Step-by-step explanation

4-6 people left in the room

✨✨Hope it helps✨✨

Brainliest?.

What is - 2 x 6 - 5^2?

Answers

Answer:

The answer is -300

Step-by-step explanation:

The answer is -300 because -2 multiplied by 6 is -12 and -12 times 25 is -300

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