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3 years ago

Why can’t we take the square root of a negative number?Provide Example.

Mathematics

2 answers:

oee [108]3 years ago

8 0

Answer:

Zero has one square root which is 0. Negative numbers don't have real square roots since a square is either positive or 0.

Finger [1]3 years ago

7 0

because its irrational if you have a negative sqaure root you would have to turn it positive by turning it to a fraction or if it's already in a fraction the you have to switch the side it's on and you could change the negative if it's a whole number that you should make it a fraction by putting a 1 under it

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In the figure given below CP=x+3, PA=3x+19, CQ=x and QB=3x+4 then, what value of x will make PQ || AB?

zhenek [66]

Given that

PQ || AB

CP = x+3

PA = 3x+19

DC = x+3

CA = x

QB = 3x+4

We know that

By Basic Proportionality Theorem,

CP / PA = CQ / QB

On substituting these values in the above formula

⇛ (3x+19) / (x+3) = (3x+4) / x

On applying cross multiplication then

⇛ x(3x+19) = (3x+4)(x+3)

⇛ 3x²+19x = 3x(x+3)+4(x+3)

⇛ 3x²+19x = 3x²+9x+4x+12

⇛ 3x²+19x = 3x²+13x+12

⇛ 3x²+19x-3x²-13x = 12

⇛ (3x²-3x²)+(19x-13x) = 12

⇛ 0+6x = 12

⇛ 6x = 12

⇛ x = 12/6

⇛ x = 2

∴ , x = 2

Answer: The value of x for the given problem is 2

Additional comment:

Basic Proportionality Theorem

" A line drawn parallel to the one side of a triangle intersecting other two sides at two different points, then the line divides the other two sides in the same ratio".

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2 years ago

Three consecutive integers have a sum of 15. What are the integers?

Mice21 [21]

Answer:

4, 5, 6

Step-by-step explanation:

First integer is X, consecutive is (x+1), next consecutive is (X+1+1)=(X+2)

Three consecutive integers have a sum of 15. X+X+1+X+2 = 15

X+X+1+X+2 = 15

3X + 3 = 15

3X = 15-3

3X = 12

X = 4

X+1 = 4+1=5

X+2 = 4+2=6

Check: 4+5+6=15, 15=15

4 0

4 years ago

Read 2 more answers

An electrician cuts always a 7.2inch long section of drywall to make repairs to the electrical system.He has several scraps of d

Nadusha1986 [10]

7 5/21 I think that would be the one that can cover it but not have to much left.

You might need a second opinion.

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3 years ago

The diagram shows a triangle 60° 11y 4y What is the value of y? y =

Vedmedyk [2.9K]

Answer:

y = 8

Step-by-step explanation:

11y + 4y + 60 = 180

11y + 4y = 120

15y = 120

y = 8

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3 years ago

Which symbol correctly compares these fractions?

Makovka662 [10]

-35 is < -23.

-35 is less than -23.

-23 is closer to 0 on the number line with 12 steps than -35.

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3 years ago