Why is it a problem to find the square root of a negative number, for example √-4?

Answers

Answer 1

Answer:

It is not possible because no number times itself can equal a negative number.

Answer 2

Answer:

Taking the square root of a negative number is a problem because this technically does not follow the rules of a square root. A square root is made of a number times itself, and therefore, is impossible to have a negative times a positive to make a negative total (An example would be √4, as the answer can be 2 (because 2 x 2 = 4) or -2 (because -2 x -2 = 4)).

This means that in order to solve √-4, you must use imaginary numbers. This is represented by "i."

For the example of √-4, your answer would be 2i. These imaginary numbers are used whenever you are square rooting a negative number in order to show that it is breaking the real rules of roots.


Related Questions

(26 points!!!) Find the measurement indicated in each trapezoid. (ISOSCELES TRAP) Do NOT include units (degrees, inches, feet, etc).*

Answers

The measurement for the angle of E is 85.

9. Spanky is four inches less than of Lanky's height. Write an expression for
Spanky's height.
Algebraic Expression:
Spanky
Lanky is 72 inches tall. How tall is Spanky?
Algebraic Expression
Numerical Expression
Answer
You pick the variable for
Lanky's height! Lanky

Answers

68 inches tall is Sparky

Step-by-step explanation:

just take of 4 tall of lanky then you will get the tall

I need help on this.. First person to answer this correctly gets a BRANLIST​

Answers

Answer: The relation is a function.

Step-by-step explanation: Since there is one value of y for every value of x in (-2,4), (3,7), (0,8), (5,8), and (1,6), this relation is a function.

I hope this helps you out!

y = 7x + 10y = -4x - 23

Answers

Answer:

              11x+23

y=    -    --------------

                  10

Step-by-step explanation:

Help I need to submit this ASAP​

Answers

Answer:  th

Step-by-step explanation:

In triangle ABC, A is a right angle and M B=45°. Find BC. If you answer is not an integer, leave it in simplest radical form.

Answers

Step-by-step explanation:

- In a right triangle, if ∠B is 45°, then ∠C is too.

-- Since ∠B  and  ∠C  are equal, the sides opposite them

are equal too.  This is an isosceles right triangle.  Its legs

are equal.

-- (The hypotenuse)²  =  (one leg)²  +  (the other leg)²

                                  =       (12-ft)²  +  (12-ft)²

                                  =              (144 x 2)

     The hypotenuse  =  √(144 x 2)  =  12√2 .

LOL

Find the solution set of the inequality
- 4x +35> 2−4x+35>2minus, 4, x, plus, 35, is greater than, 2
xxx

Answers

Answer:

[tex]\boxed{\textsf{ Hence the solution set is$ \bf{\bigg( \dfrac{33}{4},\infty \bigg) }$}}.[/tex]

Step-by-step explanation:

A inequality is given to us and we need to find the solution set. So the given inequality to us is ,

-4x + 35 >2

[tex]\bf\implies -4x + 35 > 2 \\\\\bf\implies -4x > 2-35 \\\\\bf \implies -4x > -33 \\\\\bf \implies x >\dfrac{-33}{-4}\\\\\bf \implies x > \dfrac{33}{4} \\\\\bf\implies \boxed{\pink{\bf x \in \bigg(\dfrac{33}{4}, \infty \bigg) }}[/tex]

Hence the solution set is x ( 33/4 , ).

Answer:

Step-by-step explanation:

5

Hello im in 8th grade and I need to get my grades up so anyone know the answer to
-12 minus 12x = 36
work also needs to be shown if possible thank you​

Answers

Answer:

x = 3

Step-by-step explanation:

12x = 36

simply 12 will go to the other side and switches to the opposite sign for example + will be -

× will br ÷

so 36 ÷ 12 =3

x = 3

what is the first step to solving 9z-21=60​

Answers

add 21 to both sides, so you get 9z = 81

Answer:

add 21 to both sides

Step-by-step explanation:

9z-21=60

9z-21+21 =60+21

9z=81

9z/9=81/9

z = 9

WILL GIVE BRAINLIEST IMMEDIATELY!!! INSTANT BRAINLY!! PLS HELP
I ONLY NEED STATEMENT 7's REASON!!!
5. Consider the figure below.


Given: Parallelogram SUPN, SR ⊥ UN and MP ⊥ UN


Prove: ΔPMU ≅ ΔSRN


Complete the two-column proof below.

Answers

Answer:

The two column proof is presented as follows;

Statement                   [tex]{}[/tex]                  Reason

1. Parallelogram SUPN [tex]\overline {SR}[/tex]⊥ [tex]\overline {UN}[/tex] [tex]{}[/tex]   1. Given

and [tex]\overline {MP}[/tex]⊥ [tex]\overline {UN}[/tex]

2. ∠SRU = ∠PMN = 90°   [tex]{}[/tex]                 2. Definition of perpendicular lines

3. ∠SRU ≅ ∠PMN            [tex]{}[/tex]                 2. Definition of congruency

4. [tex]\overline {UP}[/tex] ║ [tex]\overline {SN}[/tex]                      [tex]{}[/tex]                4. Opposite sides of a parallelogram are                                            [tex]{}[/tex]                                                               congruent

5. ∠SNR ≅ ∠PUM             [tex]{}[/tex]               5. Alternate interior angles are congruent

6. [tex]\overline {UP}[/tex] ≅ [tex]\overline {SN}[/tex]                      [tex]{}[/tex]               6. Opposite sides of a parallelogram are                                            [tex]{}[/tex]                                                              congruent

7. ΔPMU ≅ ΔSRN                 [tex]{}[/tex]           7. By AAS rule of congruency

By the Angle-Angle-Side (AAS) rule of congruency, we have that, if two angles and a corresponding adjacent side (∠SRU ≅ ∠PMN, ∠SNR ≅ ∠PUM, [tex]\overline {UP}[/tex] ≅ [tex]\overline {SN}[/tex])  of two triangles (ΔPMU and ΔSRN) are congruent, then the the two triangles are also congruent (ΔPMU ≅ ΔSRN)

Step-by-step explanation:

Which measurement is closest to the area of the circle in square centimeters ? A. 31.4cm² B. 78.5cm² C.62.8² D.50.2cm²​

Answers

Answer: it’s a

Step-by-step explanation: took the test got it right

The required measurement closest to the area of the circle in square centimeters is 78.5cm². Option B is correct.

What is an area circle?

The area of the circle is given by the pie times square of the radius.

Area of circle = πr^2

Here,
Let the radius of the given circle be r = 5 cm
Area of the circle = πr²

Substitute the value in the above expression,
Area of the circle = π 5²
Area of the circle = 78.5cm²

Thus, the required measurement closest to the area of the circle in square centimeters is 78.5cm². Option B is correct.

Learn more about circle here:

brainly.com/question/11833983

#SPJ6

What is the radius and diameter of the following circle?

Answers

radius is 3.5
diameter is 7

Given that lines q and m are parallel and are cut by two
different transversal lines, j and k, use angle relationships
to determine the measure of each numbered angle:

Answers

angle 1 = 180-110 = 70 degrees (linnear pair)

angle 2= 180-115 = 65 degrees (linnear pair)

angle 3 = angle 2 = 65 degrees (corresponding angles)

angle 4= 180 - angle 3 = 180-65 = 115 degrees (linnear pair)

(your teacher might not like this, depends on the cituation, but use 180 degrees in triangle to get 7)

angle 7 = 180 -angle1 -angle 2= 180-70-65= 45 degrees

angle 6 = angle 7 = 45 degrees ( vertical angles)

angle 8= 180- angle 7= 180-45 = 135 ( linnear pair)

angle 9 =angle 6 = 45 degrees (corresponding angles)

angle 5=angle 9=45 degrees (vertical angles)

Find x+y, if: 2x+3y=8 and 3x+5y=13

Answers

Answer is x = 1 & y = 2
the answer can be found using math-way

Please help! I need an explanation also because I am currently having trouble

Answers

Answer:

E = 80 degrees

Step-by-step explanation:

7x + 3 + x + 15 + 74degrees = 180

8x + 92 = 180

8x = 180 - 92

8x = 88

x=11

m<E = 7x + 3

7(11) + 3

77 + 3

= 80

7 more than twice z ..............................................................

Answers

Answer:

2z+7

Step-by-step explanation:

2*z+7

2z+7

Explain 3 areas in everyday life when you use math.

Answers

If u become a teacher , to get into collage and uni
Managing money,understanding sports and baking/cooking

If 12x – 20 =
10x + 20 what is the value of 3x ?

Answers

Answer: 3x=60

Step-by-step explanation:

12x-20=10x+20

X=20

3(20)= 60

please help!!
i’m really stuck and confused!

Answers

Answer:  a.2^3, b. 3^5, c. 4^3 + 5^2, d. 9^4 + 7^2

Step-by-step explanation:

i took this class already

Answer:

a) = 8

b)=243

c)=1 600

d)=321 489

Explanation

a) 2×2= 4×2= 8

b)3×3=9×3=27×3=81×3=243

c)4×4=16×4=64×5=320×5=1 600

d)9×7=63×9=567×9=5 103×7=35 721×9=321 489

PLZ PLZ PLZ ANSWER THIS!!!!

Answers

Answer:

a.

Step-by-step explanation:

girls 60/50

boys 40/50

40/50 is 10

WILL GIVE BRAINLIEST TO WHOEVER ANSWERS ALL 3 AND GETS THE RIGHT! PLEASE HELP

Answers

Answer:

4. 21

5. 45

6. 22

Step-by-step explanation:

4. 6 + (2^4) - 1

   6 + (16) - 1

   22 - 1 = 21

5. (4 * 3²) + (18 - 9)

   (4 × 9) + (9)

   (36) + (9) = 45

6. 16 + (5² - 7) ÷ 3

PEMDAS tells us to do what's in Parentheses first

16 + ( 25 - 7) ÷ 3

16 + (18/3)

16 + 6 = 22

Find the unknow measures of y and x.​

Answers

9514 1404 393

Answer:

  x = 2 m

  y = 30°

Step-by-step explanation:

The side lengths of ΔDEF are 3/9 = 1/3 of those of ΔABC.

  x = DF = 1/3(AB) = (1/3)(6 m)

  x = 2 m

__

Angle measures of ΔDEF are the same as those of the corresponding angles of ΔABC.

  y = ∠B = ∠E = 30°

  y = 30°

Triangular prism please help

Answers

Answer:

 C

Step-by-step explanation:

3y - 5x = 15 slope intercept form

Answers

Answer:

Y=3/5x-3

Step-by-step explanation:

Answer:

y=5/3x+5

Step-by-step explanation:

1)3y-5x=15

2)3y=15+5x

3)y=5+5/3x

4)y=5/3x+5    

1) Write the equation out

2) Add 5x to both sides of the equation

3) Divide both sides of the equation by 3

4) Reorder the terms  

2k+16=30 i need help with this before March 2nd ASAP

Answers

Answer:

k = 7

Step-by-step explanation:

The goal is to solve for the variable k in this problem.

To do this, we need to get k by itself!

2k + 16 = 30

Start by subtracting the 16 over from the left side to the right

2k + 16 - 16 = 30 - 16

Simplify by subtracting 16 from 16 on the left side (which is 0) and 16 from 30 on the right side (which is 14).

2k = 14

Then finish by dividing both sides by 2 to get k by itself.

[tex]\frac{2k}{2}[/tex] = [tex]\frac{14}{2}[/tex]

Simplify by dividing 2 by 2 on the left side (which is 1) and 14 by 2 on the right side (which is 7).

k = 7

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\textbf{Equation:}[/tex]

[tex]\mathbf{2k + 16 = 30}[/tex]

[tex]\huge\textbf{Solving for:}[/tex]

[tex]\mathbf{2k + 16 = 30}[/tex]

[tex]\huge\textbf{Subtract \boxed{\bf 16} to both sides:}[/tex]

[tex]\mathbf{2k + 16 - 16 = 30 - 16}[/tex]

[tex]\huge\textbf{Simplify it:}[/tex]

[tex]\mathbf{3k = 30 - 16}[/tex]

[tex]\mathbf{2k = 14}[/tex]

[tex]\huge\textbf{Divide \boxed{\bf 2} to both sides:}[/tex]

[tex]\mathbf{\dfrac{2k}{2} = \dfrac{14}{2}}[/tex]

[tex]\huge\textbf{Simplify it:}[/tex]

[tex]\mathbf{x = \dfrac{14}{2}}[/tex]

[tex]\mathbf{x = 14\div2}[/tex]

[tex]\mathbf{x = 7}[/tex]

[tex]\huge\textbf{Therefore, your answer should be:}[/tex]

[tex]\huge\boxed{\mathsf{k = }\frak{\ 7}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Write down the inequality described by five is greater than the result of taking six away from x", and solve for x.

Answers

Answer:

x < 11

Step-by-step explanation:

Taking the problem piece by piece;

five is greater than

5 >

the result of taking six away from x

x - 6

Solve for x;

5 > x - 6

5 + 6 > x

11 > x

x < 11

Work out the following, giving your answers in their simplest form:
a) 2/3 divided by 1/4
b) 7 divided by 2/3

Answers

definitely recommend the app Fraction Calculator Plus

a) 2 and 2/3
b) 10 and 1/2

a)

there are 250 chairs and 150 chairs are full what is the percentage of occupied chair what is the percentage of non occupied chair

Answers

Answer:

What is p% of x?

What is

150

%

of

250

?

y =

375

what is p% of x? formula

Step-by-step explanation:

A biologist estimates that the human body contains 90 pounds of water for every 100 pounds of body weight. At the rate estimate the number of pounds of water in a child who weighs 80 pounds

Answers

Answer:

72 lb

Step-by-step explanation:

Write and solve an equation of ratios:

80 pounds             x

----------------- = ------------------

100 pounds      90 pounds

Cross multiplying, we get (100 pounds)x = 7200, or x = 72 pounds.

The 80 pound child's weight includes 72 pounds of water.

HELP ME SOLVE HURRY I WILL MARK BRAINLIEST THANKS

Answers

Answer:

your y intercept is 90 and the equation would be y= 90 and x is unknown

Other Questions
What is the 30th term of the linear sequence? -5, -2, 1, 4, 7 The volume of the rectangular prism is 16 cubic cm. The length is 2 and 1/3 cm and the width is 4 cm. What is the height? balance the following equation FeC+Cl. FeCl help me pls i need help Describe in your own words how the picture above shows 3(2 + x) 20 POINTS Translations7AcellusFind the image of the given pointunder the given translation.Help ResourcesP(3,-5) T(x, y) = (x +4, y-3)P' = ([?], []).Enter the number that belongs inthe green box.Enter What types of health related issues might be associated with climate related factors?A)malariaB)skin cancerC)hypothermiaD)elevation sicknessE)all of the above I need help please... What allowed Islam to spread? Make sure in your answer you include Sufis, scholars, traders, literacy, schools, healers, and the term Islamization. Por qu las empresas de bebidas usan personajes y personas famosas que atraen a algunos grupos de personas ms que a otros Write 0.4% as a fraction or mixed number in simplest form. please help/ / 20 points Where does the process of transcription occur within the cell? exercises english solve it pls Diana spent $5 on lunch. She purchased a sandwich and a drink. The drink cost $2. Theequation s + 2 = 5 can be used to find the cost s of the sandwich. Which model shows theequation? An Xbox has a retail price of $350. Best Buy is offering a 15% discount on the system. How much will the Xbox cost after the discount? eGEF Con2.Colegio Educativo Privado Mixto de Formacin Integral en Computacin"Ceif- Comp"Puerto Barrios, IzabalRepartir Q.4,950 en forma I.P. a 12; 18 y 6;indicar la mayor parte.b) Repartir 42 entre A y B y C de modoa) 300que la parte de A sea el doble de "B, y lab) 450c) 900de C la suma de las partes de A y B.d) 1350Dar la parte mayor.e) 2700a) 21 b) 7c) 14b) Un padre de familia reparte semanalmented) 35e) 20una propina de Q.148 entre sus hijos quetienen respectivamente: 12, 15 y 18 aos,con la condicin de que se dividan esta5. a) Cuatro personas invirtieron en susuma I.P. a la edad que tienen una de lasnegocio cantidades proporcionales a 11, 15,18 y 25. Si el que aport ms aport 2800soles ms que el que aport menoCunto aportaron los cuatro?0709 b) 13 800 c) 15 800) 64 Which statement best explains how the Catholic Church benefited from the journeys Columbus made to the Americas? The Catholic Church What is the annual rate of inflation (percent of inflation) of a gallon of milk costing $2.25 last year and $2.70 this year Find the exact value of inverse cos (square root of 3/ 2.