Explain why square root of -2 is equal to i square root 2

Answers

Answer 1

Answer:

Because square roots aren't really negative. if you multiplied square roots by themselves they can equal positive and negative

Step-by-step explanation:


Related Questions

A major storm has winds speeds that are at least 110 miles per hour.Write and solve an inequality that describes how much greater these wind speeds are than the slowest hurricane

Answers

Answer:

x ≥ 36 miles per hour

Step-by-step explanation:

The speed of a major storm is at least 110 miles per hour while the speed of the slowest hurricane is at least 74 miles per hour.

Let x represent how much greater these wind speeds are than the slowest hurricane. Therefore:

x ≥ 110 miles per hour - 74 miles per hour

x ≥ 36 miles per hour

This means that the winds speed must be 36 miles per hour greater than the slowest hurricane.


Given the parallelogram
with the m and m Find the m (8x + 14) (6x + 13)
55

B) 55°
A) 110°
C) 7°
D) 70°

Answers

Answer: 55.

Step-by-step explanation:R = 55. You put all the angles equal to 180 and then get the variable by itself.

Which number produces an irrational number when added to 0.4?
B. 0.444...
C.2/7

Answers

Answer:

B.

Step-by-step explanation:

25+8x=5+12x whats the answer?

Answers

Answer:

x = 5 (see below)

Step-by-step explanation:

Combine like terms by subtracting on both sides:

25 + 8x = 5 + 12x

20 = 4x

Then divide:

20 = 4x

5 = x

Move the variable to the left side of the equation:

x = 5

The answer would be x=5
Hopefully this helps

1. g(x) = f(x) - 7
how do u solve these?

Answers

Answer:

g' (×)=f

Step-by-step explanation:

g (×)=f×-7

g' (×)= d÷d× (f×-7)

d÷d×(f+g)=d÷d×(f)+d÷d=(g)

g' (×)=d÷d×(f×)-d÷d×(7)

g'(×)=f-d÷d×(7)

g'(×)=f-0

g'(×)=f

The diagram shows a prism placed on a horizontal floor. The prism has height 3m. The volume of the prism is 18m^2. The pressure on the floor due to the prism is 75 Newton's/m^2. Work out the force exerted by the prism on the floor.

Answers

Area= 15^bbc
5 stars thx

Can someone answer this question this correctly for me

Answers

The answer is A cause thoes are the ones u don’t have a number for yet

Can someone please help me. WILL MARK YOU BRAINLIEST!!

Answers

Answer:

A. y > -3 All real numbers greater than -3

Step-by-step explanation:



select graph that matches the inequality

Answers

Answer:

The answer is

Step-by-step explanation:

C

What is the equation of the graphed line written in standard form?

Answers

Answer:

y=3x-4

Step-by-step explanation:

WILL GIVE BRAINLIEST!
Translate the following verbal expression into a variable expression.
Eight divided by the sum of a number and three.

Answers

Answer:

8÷(x+3)

Step-by-step explanation:

it doesnt specify what number you add with 3 so you substitute it with a variable such as x.

The sum is adding so x +3 and then divide by 8

8 / (x+3) would be the variable expression

On a particular day 4% of the students were absent. If there are 1750 students at the school then how many were not absent that day?

a) 70
b) 1050
c) 1650
d) 1680


*pls help will mark brainliest!!!*

Answers

Answer:

A) 70

Hope this helps :)

Solve the equation:

7x − 2 = 26

Answers

Answer:

[tex] \large \boxed{x = 4}[/tex]

Step-by-step explanation:

Goal

Solve for x-term.

Given

Equation

[tex]7x - 2 = 26[/tex]

Step 1

Isolate x by adding 2 to both sides.

[tex]7x - 2 + 2 = 26 + 2 \\ 7x + 0 = 28 \\ 7x = 28 \\ x = \frac{28}{7} \\ x = 4[/tex]

Step 2 (Optional)

We check the answer by substituting x = 4 in the equation.

[tex]7x - 2 = 26 \\ 7(4) - 2 = 26 \\ 28 - 2 = 26 \\ 26 = 26[/tex]

The equation is true for x = 4. Hence, the solution is x = 4.

The average distance from the Sun to Mars is 22,793, 910,000,000 centimeters.

The conversion factors between centimeters and four other units of measure are shown below.

9.46. 10^17 cm = 1 light-year
1.50.10^13 cm = 1 astronomical
1 . 10^5 cm = 1 kilometer
1. 10^2 = 1 meter

For the distance to be expressed as x units of measure, where 1 < x < 10, which unit of measure must be used?

A Light-years
B) Astronomical units
C)Kilometers
D) Meters​

Answers

Step-by-step explanation:

JOIN MY MEETING

ID-9384026088

PASSWORD 1234

Answer:

C

Step-by-step explanation:

what are the answers to these?!?!?!?>>>>>
2(y−3)=4 (solve for "y")
2x+5y=10 (solve for "x")
6x+3y=4y+11 (solve for "y")
3(2x+4)=2+6x+10 (solve for "x")
y=−3x+6 (solve for "x")
m=8−2(p−m) (solve for "p")

Answers

1) y=5

2) x=(10-5y)/2

3) y=(11-6x)/-3

4) x=0

5) x=(-y+6)/3

6) p=(8+m)/2

Which represents the numbers in order from least to greatest?
9%, 9/10, 9. -9/1

Answers

Answer:

9% 9. -9/1 9/1

Step-by-step explanation:

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
time after launch, x in seconds, by the given equation. Using this equation, find the
maximum height reached by the rocket, to the nearest tenth of a foot.
y = -16x2 + 160x + 51

Answers

Answer:

451

Step-by-step explanation:

on a calculator go to y= and type the equation in and then go to the table.  

True or False: Similar and congruent mean the same thing.

Answers

Answer:

true

Step-by-step explanation:

Answer: False

Step-by-step explanation: Similar means that only the angles are the same, but the sides are not. Congruent means the angles and sides are the same.

An isosceles triangle has an angle that measures 66°. Which other angles could be in that isosceles triangle?

Answers

Answer:

57 and 57 or 66 and 48

Step-by-step explanation:

180-66=114

114/2=57

the awnser is 24

Step-by-step explanation:

I think it might be wrong sorry if it wrong

find the area of each square.

Answers

Answer:

25 m², 16 m², and 9 m²

Step-by-step explanation:

5 × 5 = 25 m²

4 × 4 = 16 m²

3 × 3  = 9 m²

What’s the answer please tell me

Answers

Answer: 3

Step-by-step explanation:

The larger triangle is 5 times the size of the smaller triangle. Notice 6 increased to 30. How? 5x6 = 30, so it increased in size 5 times. The rise of the larger triangle is 15. If we know that 15 is 5 times as large as the smaller rise, then 15 divided by 5 = 3. So the smaller rise is 3

Answer:

Missing rise is 3

Step-by-step explanation:

[tex]\frac{30}{15} =\frac{6}{x}\\[/tex]

30x=90

x=3

W-20.5=8 please help me

Answers

This is just the same as asking you what number when subtracted by 20.5 will give you an answer of 8. The answer would obviously be 8+20.5=28.5 so w=28.5.

We can also do it in a more algebraic way. By adding 20.5 to both side of the equation which won't change the value.

w-20.5+20.5=8+20.5

w=28.5

Any questions just ask me in the comments of this question :)

Some systems of inequalities can have no solution.

Answers

Answer:

Yes, that is true.

Step-by-step explanation:

The bounded regions of the two inequalities do not overlap, so there is no solution set. However, the existence of parallel lines does not necessarily indicate that there is no solution, it just means that there is the possibility of no solutions.

A pattern maker earns $25 per hour. She has monthly business expenses of $300. Her profit is the difference between
her monthly earnings and her monthly business expenses. How many hours will the pattern maker have to work in a month to make a profit
of at least $2,000?
оооо
a) 92
b) 100
c) 108
d) 121

Answers

Answer:

i think the answer is a.92 hope this helps

All factors pairs of 20?


Answers

1 x 20

2 x 10

4 x 5    (these go the other way round as well, like 10 x 2, etc)

all factors of 20 = 1,2,4,5,10,20

hope this helps!

The factors of 20 are the numbers, which produce the result as 20 when a pair of factors are multiplied together. These factors are 1,2,4,5,10 and 20.

The difference of a number c and 17 is more than 33.

Answers

Answer:

c-17=x>33

c=51

Step-by-step explanation:

The value of number c should be greater than 50.

It is given that difference of a number c and 17 is more than 33.

We have to find out the value of number c.

What do you mean by algebraic expressions ?

The algebraic expressions are those which are made up of variables, constants and algebraic operations i.e., addition, subtraction, etc.

As per the question ;

The difference of c and 17 is more than 33.

i.e.,

difference of c and 17 meant ; 17 should be subtracted from c and this is greater than 33.

i.e.,

c - 17 > 33

c > 33 + 17

c > 50

Thus , the value of number c should be greater than 50.

To learn more about algebraic expressions click here ;

https://brainly.ph/question/20786412

#SPJ2

HELP ME PLZ ITS DUE AT 11:59 AND I HAVE MORE

Answers

Answer:

Step-by-step explanation:

1: no

2 yes

3 no

4 yes

5 no

6 no

7 always

8 always

9 never

10 always

11 always

12 never

13 108

14 80

15 70

16 123

17 38

18 167

19 10

20 154

48 = -12t
HELP ASAP PLEASE

Answers

Answer:

-4

Step-by-step explanation:

what is the result when 3x^3+13x^2+11x^2+1 is divided by x+ 1

and can you show me how to do it please

Answers

Answer:

58x

Step-by-step explanation:

can i get brainliest

My brain isn't working right now, please help.

Answers

Answer:

Down below, hope this helps!

Step-by-step explanation:

The author's message is that a person cannot predict the future without first learning about the past. The author does this by providing an example of how one wants to read without knowing the letters of the alphabet. Obviously, you can't read without first learning the letters of the alphabet. With the reading example, the author is explaining that just like a person trying to read without learning the alphabet first, a person predicting the future without knowing their history first is doing the exact same thing, it's nearly impossible.

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