What is the square root of -1?

Answers

Answer 1

Answer:

i

Step-by-step explanation:

Zero has one square root which is 0. Negative numbers don't have real square roots since a square is either positive or 0. The square roots of numbers that are not a perfect square are members of the irrational numbers. This means that they can't be written as the quotient of two integers.

Answer 2

 the answer is i

Step-by-step explanation:

for real this is true


Related Questions

what is 2{16-[6^2-4(8-2)}=

Answers

Answer: 8

Step-by-step explanation:

We have to complete the operation in the parenthesis first. 8-2 is 6. Now we have to take 4(6) which is 24. Now we have 6^2-24. 6^2 is 36. So 36-24 is 12. 16-12 is 4. Now 2 times 4 is 8.

8 squared - 6 x 10

solve.

Answers

Answer:

4

Step-by-step explanation:

8 squared is 64, and 6 x 10 is 60. 64-60=4

Find the length of each line segment or object to the nearest half or fours or eighth inch

Answers

Answer:

a. [tex]1\frac{1}{8} in.[/tex]

Step-by-step explanation:

hey there,

< There are 8 marks between 1 in. and 2 in. and here we can see that the distance of the line goes only up to the first mark.

Imagine this like a pizza that's divided into 8, but you only took 1 slice. That means you took only [tex]\frac{1}{8}[/tex] of the pizza. It is the same here on the ruler.

It's not only 1/8 though because we also have to add in the first inch. After that inch, we also have 1/8 of an inch. So [tex]1\frac{1}{8}[/tex] in. would be your final answer. >

Hope this helped! Feel free to ask anything else.

Did I get this right or no if I didn't pls explain (im so stupid)

Answers

Answer:

simplify the answer to 1 over 6

Answer:

1/6 or (Decimal: 0.166667)

Step-by-step explanation:

Which expression is equivalent to this polynomial?

6x2 + 10x − 56

Answers

Given :

[tex]\longrightarrow \sf \qquad {6x}^{2} + 10x - 56[/tex]

We can write it as,

[tex]\longrightarrow \sf \qquad2 \bigg({3x}^{2} + 5x - 28 \bigg)[/tex]

We have to find the two numbers a and b such that,

[tex]\longrightarrow \sf \qquad a + b = 5[/tex]

[tex]\longrightarrow \sf \qquad a b = 84[/tex]

Obviously, the two numbers are 7 and 12.

[tex]{\longrightarrow \sf \qquad2 \bigg({3x}^{2} - 7x + 12x- 28 \bigg)}[/tex]

[tex]{\longrightarrow \sf \qquad2 \bigg[x \bigg(3x-7 \bigg) +4 \bigg(3x-7\bigg)} \bigg][/tex]

[tex]{\longrightarrow \sf \qquad{2 \bigg(3x - 7 \bigg) \bigg(x + 4\bigg)}}[/tex]

Therefore,

[tex]{\longrightarrow \bf \qquad{2 \bigg(3x - 7 \bigg) \bigg(x + 4\bigg)} \: is \: equivalent} \bf \: \: to \: \: {6x}^{2} + 10x - 56[/tex]

To make 6 dinner rolls, 1/3 cup of flour is used.

A) How much flour is used to make 1 dinner roll

B) How many cups of flour are needed to make 60 dinner rolls

Answers

Answer:

A.) 18

B) 42...................

translate the following phrase into a mathematical expression 12 fewer than triple the value of x ​

Answers

Answer:

3x- 12

Step-by-step explanation: :))) this is true because a number next to a variable means multiplying and then youd subtract 12 from that total

4. Jose is doing his Algebra homework and comes to a problem that
asks him to solve the equation 5x = 2x. He is unsure whether to divide
both sides by 2x or subtract 2x from each side. Will both methods
lead him to a correct solution or is one method correct and the other
incorrect? Explain your reasoning.

Answers

Answer:

x = 0Subtraction method

Step-by-step explanation:

Given equation

5x = 2x

Solving for x

5x - 2x = 2x - 2x3x = 03x/3 = 0/3x = 0

Let's see what the division method gives

5x = 2x5x/2x = 2x/2x2.5 = 1, which is impossible

No solution. This method proves to be incorrect.

this circuit has 9- volt battery and total resistance of 15 ohms how much current flows in the circut

Answers

Answer: Power (P) = 5.4 watt (W)  Current (I) = 0.6 ampere (A)

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What is the sum of 3 + ( –4 ) ? You may use the number line to help you figure out you’re answer

Answers

Answer:

-1

Step-by-step explanation:

To visualize this on a number line you are moving four spots over to the left of 3 (since it is to the left, it is a negative four). 3 to 2 is the first movement to left, 2 to 1 is the 2nd movement, 1 to 0 is the third movement, and 0 to -1 is the fourth movement to the left.  

Answer:

-1

Step-by-step explanation:

It's basically 3-4

Let's say you have to make 4 pies by 4:00 but only make 3. You'd be missing 1.

Dina drew a figure that has at least one line of symmetry and at least one right angle. Which
the shape could be the figure Dina drew?

Figure A
Figure B
Figure C
Figure D

Answers

Figure C

It has two right angles and four lines of symmetry.

Evander is considering taking a $6,000

student loan that charges 3. 5% interest

compounded annually. Which amount is

closest to the total loan plus accumulated

interest in 4 years when he graduates?

F $6,885. 14 H $6,210. 00

G $6,840. 00 J $7,019. 15


Right answers only!

Answers

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$6000\\ r=rate\to 3.5\%\to \frac{3.5}{100}\dotfill &0.035\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &4 \end{cases} \\\\\\ A=6000\left(1+\frac{0.035}{1}\right)^{1\cdot 4}\implies A=6000(1.035)^4\implies A\approx 6885[/tex]

d + 7 over -3 = 4
SOLVE FOR D

Answers

Answer:

You can write this as: [tex]\\\frac{d+ 7}{-3}=4[/tex]

Step-by-step explanation:

D would have to equal 5.

Help !!! Its A Math Question .... Find the coordinates of the reflection without using the coordinate plane.
P (4,6) over the x-axis.

Question options:

(-4, -6)


(4, -6)


(-6, 4)


(-4, 6)

Answers

Answer:

B

Step-by-step explanation:

When reflecting over the x axis, (x,y) -> (x, -y)

This means P(4,6) -> P'(4, -6)

f(x) = V5x+7. g(x) = V5x - 7 Find (f + g)(x)
v is square root.​

Answers

Answer: f(x+5/7)=5x-24/7

HELP PLEASE!!!!!!!!! NO LINKS!!!!!! 50 POINTS!

Answers

Answer:

It has decreased by 2 units. The percent of decrease is 25%.

Step-by-step explanation:

100(1-(b/a)) is the way of finding depreciation where a is the starting value and b is the final value.

100*(1-(6/8))

100*(1-3/4)

100*1/4

25

Answer:

The amount of decrease is 2 and the percent decrease is 75%

Step-by-step explanation:

Amount of decrease
8-2=6

Percent decrease

6/8=3/4=0.75=75%

Pls answer these if u can :(

Answers

Answer:

ok all I know is that #1 is 9+12 in simplified form and the value is 21 if x=1

Step-by-step explanation:

I'm sorry i don't know the other two:(

If F1 has a magnitude of 12 N and the box is stationary, what is the magnitude of F2?


12 N12 N , ,

15 N15 N , ,

6 N6 N , ,

0 N

Answers

The magnitude of the Force F2 is; 12 N

How to solve equilibrium of Forces?

According to newton's third law of motion which states that to every action there is an equal and opposite reaction, since F1 has a magnitude of 12N, it means that F2 will be an equal force acting in the opposite direction.

Now, since the force F2 is equal and opposite to F1, then F2 = 12 N

Read more about equilibrium of forces at; https://brainly.com/question/20892645

Answer:12n

Step-by-step explanation:

In which set of points is y a function of x?

Answers

Answer:

Probably A

Step-by-step explanation:

Well, what I'm seeing is just that y = x squared.

[tex]y=x^{2}[/tex]

Answer: the first one

Step-by-step explanation: i may be wrong but i think its the first one, if its not please correct me

Which region of the country had an agricultural based economy?

Answers

Answer:

This is not math this is History

Step-by-step explanation:

3.01.01 LC)
Last week, Vernon worked the following days and times:
Day 1: 4 hours, 30 minutes
Day 2: 4 hours, 45 minutes
Day 3: 5 hours, 30 minutes
Day 4: 6 hours, 15 minutes
Find Vernon's total time worked in decimal hours. (4 points)
O 19.45
O
19.50
O
20.20
21.00
O

Answers

Answer:

21.00 hours

Step-by-step explanation:

4 hours, 30 minutes=4.5 hours

4 hours, 45 minutes=4.75 hours

5 hours, 30 minutes=5.5 hours

6 hours, 15 minutes=6.25 hours

4.5 + 4.75 + 5.5 + 6.25 = 21.00 hours

What is the fraction for the following decimal expansion?
0.125
A. 1/8
B. 1/4
C. 5/12
D. 1/25

Answers

Answer:

A=1/8

Step-by-step explanation:

used a calculator

A ball is thrown into the air with an upward velocity of 80 feet per second. The function
h = -16t2 + 80t models the height h, in feet, of the ball at time t, in seconds. When will the ball reach the ground?

after 3 seconds

after 4 seconds

after 5 seconds

after 6 seconds

Answers

The ball will reach ground after 5 seconds

Answer:

C: after 5 seconds

PLEASE HELP!!! 30 POINTS!!!

Answers

Answer:

completing the square

Step-by-step explanation:

you have to complete it to get the awnser

so if y look at the question it says

what ratio represents the ratio sin (A) in the diagram?

Answers

Answer:

Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.The ratios of sides of a right-angled triangle with respect to any of its acute angles are known as the trigonometric ratios of that particular angle.

Step-by-step explanation:

which ratio is equivalent to 3:9
A:24:54
B:18:54
C:36:81

Answers

Answer:

B. 18:54

Step-by-step explanation:

I hope this can help

What is the slope of the line on the graph​

Answers

Answer:

-2

Step-by-step explanation:

To find the slope, you can do rise (change in y)/run (change in x). Take the points (0, 0) and (3, -6) There is a change of -6 in the y-direction (you can count on the graph) and a change of +3 in the x-direction. Using this, rise/over run, plug in -6/3 to get -2 as the slope.

Solve the equation
|2x - 5| = -3x+4

Answers

Answer:

x= 5/9 or 0.5556

Step-by-step explanation:

|2x-5| = -3x+4

|5x-5|=4

|5x|=9

|x|=5/9 or 0.5556

x= 5/9 or 0.5556

Anyone can help me with this please!!!????i’d appreciate it thank you sooooo much!!!!

Answers

AED= 130 degrees

Line CED= 180
180-50= 130

Write 1/5 as a decimal number .

Answers

The answer is 0.2!
5/1=0.2
Hope that helps!!
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