if n < 0
√(n^2) = ???
thank youuuuu

Answers

Answer 1

Answer:

-n

Step-by-step explanation:

The symbol √ means the principal square root.

The principal square root is always non-negative.

For example, even though the number 25 has two square roots, -5 and 5, since both (-5)² and (5)² equal 25, when you express the square root using the square root symbol, then √25 = 5, and not -5, since √25 means the principal square root of 25, and as a principal square root, it must be a non-negative number.

If n < 0, then you are dealing with negative numbers.

Once you square n to get n², n² is a positive number.

Then the square root of n², expressed with the square root symbol as √(n²) must be positive, so it equals -n.

Example:

Let n = -8.

Then n² = (-8)² = 64.

√(64) = 8

Compare 8 to -8. 8 is -(-8), just like we get -n.

Answer: -n


Related Questions

plsefgrffghttgrewe helppppppppppppppppppppppppppppp

Answers

It should be 4 since it is rise over run so it should be 4/1 and that equals positive 4

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The slope of the given line is its constant of proportionality ~

so, let's find the slope ~

[tex] \sf\dfrac{y_2 - y_1}{x_2 - x_1} [/tex]

[tex] \sf \dfrac{4 - 0}{1 - 0} [/tex]

[tex] \sf 4[/tex]

The required value is ~ 4

By VCR Sales A dealer carries two models of VCRs. One sells for
$300 and the other sells for $225. The dealer sells 22 VCRs for a
total revenue of $5700. How many of each type did the dealer sell?

Answers

Answer:

2333

Step-by-step explanation:

Find the length of side x to the nearest tenth.
309
X
60°

Answers

X = 1/cos(30)
X = 1.154700538
X = 1.2 (nearest tenth)

A family travels a distance of 870 miles in 13 hours on vacation. What was the families average speed for this trip? s

Answers

Answer: 256.

Step-by-step explanation:

✨maThS✨

g
Pat a
mber
4. In a hockey league, 87 players play on seven
different teams. Each team has at least 12
players. What is the maximum number of players
on any one team?

Answers

Answer:

15

Step-by-step explanation:

since there is 7 teams and 12 can be the minimum we can do 7 x 12=84

this means that 3 people could possibly be on one single team.

the maximum number is 12+3=15

Find the measures of angles 1 and 2.

Answers

Answer:

angle one:100 degrees

angle two:70 degrees

Step-by-step explanation: so angle two and the angle with 70 degrees are alternate angles, so they would be the same. at this point if you subtracted 70 from 180 because angle b is 180 degrees, you would get 110, so then you would have three angles, and it wouldn't be too hard to find the fourth, which is 100 degrees.

20 points answer please

Answers

Answer:

just d

Step-by-step explanation:

Hope this helps!❆

Hailey is putting up a fence in the shape of an isosceles triangle in her

backyard. The fence has side lengths as shown, where x represents the

number of feet in each fence section. The perimeter of the fence can be

covered using 8 total fence sections represented by the expression 8x. If

fencing costs $6.50 a foot, what would be the total cost of the fence?

(2x + 4) ft

(3x + 7) ft

.

(2x + 4) ft

Answers

Answer:

the total cost would be $ 780.00

Step-by-step explanation:

step by step explanation

Pls help I will put brainlist if u help me told nd thank u

Answers

Answer:

17+7=24

Step-by-step explanation:

I hope this help you

Answer

10

Step-by-step explanation:

Subtract 7 from both sides of the equation.

n=17−7

Subtract 7 from 17.

n=10

BRAINLIEST?

The picture shows the $4.88 Josephine spent on a package of 4 pens.

Drag the money below to the box to show how much each pen cost.

Answers

Answer:

4 dollars 8 dimes 8 pennies

Step-by-step explanation:

Answer:

Each pen costs $1.22, which means that you would have to drag a $1 bill, 2 dimes, and 2 Penny's into the box.

The nth term of a sequence is 3n2 - n + 10 where n is a positive integer. Which term in the sequence is equal to 54?​

Answers

Answer:

4th term

Step-by-step explanation:

Equate the nth term formula to 54 and solve for n

3n² - n + 10 = 54 ( subtract 54 from both sides )

3n² - n - 44 = 0

Consider the factors of the product of the n² term and the constant term which sum to give the coefficient of the n- term.

product = 3 × - 44 = - 132 and sum = - 1

The factors are - 12 and + 11

Use these factors to split the n- term

3n² - 12n + 11n - 44 = 0 ( factor the first/second and third/fourth terms )

3n(n - 4) + 11(n - 4) = 0 ← factor out (n - 4) from each term

(n - 4)(3n + 11) = 0

Equate each factor to zero and solve for n

n - 4 = 0 ⇒ n = 4

3n + 11 = 0 ⇒ 3n = - 11 ⇒ n = - [tex]\frac{11}{3}[/tex]

Since n > 0 then n = 4

The 4th term of the sequence is 54.

What is a sequence ?

A sequence is a set of numbers with a constant difference or a constant ratio or it have a certain relation with the next and previous term.

According to the given question the nth term of a sequence is 3n² - n + 10.

We have to determine which term is equal to 54 or the value of and it must be an integer.

So, 3n² - n + 10 = 54.

3n² - n - 44 = 0.

3n² - 12n + 11n - 44 = 0.

3n(n-4) +11(n-4) = 0.

(3n+11) = 0 OR (n-4) = 0.

n = - 11/3 OR n = 4.          ( given the term no. is a positive integer ).

learn more about sequence here :

https://brainly.com/question/21961097

#SPJ2

whats is 89 x 98789 =
please help me asap please

Answers

Answer:

8792221

Step-by-step explanation:

89 x 98789 = 8792221

8792221 is correct answer

(Hope this helps can I pls have brainlist (crown)☺️)

Use the graph to identify the following: end behavior. for a branlist

Answers

Answer:

the first option, increasing as x approaches infinity and decreasing as x approaches negative infinity

Step-by-step explanation:

Marco is working with the equation s=kw his teacher told him that’s a varies directly with w if Marco substitutes 300 for s and 60 for w which of the following would be valid

Answers

Answer:

 S = kpq 280 = k(5)(7) 280 = 35k 8 = k

What is the factorization of the expression below?
42 - 9y2
O A. (4x - 3y)(x + 3y)
B. (4x-3y)(x - 3y)
O C. (2x-3)(2x-3y)
O D. (2x-3)(2x + 3y)

Answers

[tex]\sf \longmapsto \: 4x {}^{2} - 9y {}^{2} [/tex]

There are no like terms so we can't simplify itFactoring

[tex]\sf \longmapsto(2x+3y)(2x−3y)[/tex]

[tex] \boxed{\sf (2x+3y)(2x−3y)}[/tex]

Answer:

Choice D

Step-by-step explanation:

Factorise: 4x²-9y²

We can obtain the factorization by this identity:

a² - b² = (a+b)(a-b)

Rewrite the given expression as:

(2x)² - (3y)²

Let (2x)² be a and (3y)² be b according to the identity.

So applying the identity:

(2x+3y)(2x-3y)(2x-3y)(2x+3y)

Choice D is accurate.

Write 456 in expanded notation using powers of 10​

Answers

Answer:

400+50+6

Step-by-step explanation:

456 means 400+50+6

pls help with this question asap!

Answers

Answer:

ggggggggggggggggggggg

Additional questions!!! Please help, due today!!!

Answers

Answer:

A.

Step-by-step explanation:

?

What is 2 and 2/3 x 5

Answers

Answer:

13 and 1/3

Step-by-step explanation:

2×5=10

2/3 ×5 =10/3

10/3 simplifies to 3 and 1/3

Add them together to get 13 and 1/13

What is the value of H in the diagram below?

Answers

Answer:

The answer is 6.5

Step-by-step explanation:

It was a long process, but overall if you look at how long the segment x looks, it has to be less than half of the segment that is 30 units long so the only one that makes sense is 6.5

Select the correct answer.
Which equation has a unit rate greater than the unit rate of the relationship shown in the graph?
7
5
3
3
9

Answers

The correct answer is gonna be 9

14. At a local fruit stand, Luisa spends $5.25 for 2 pounds of strawberries. At this rate, how much can she expect to pay for 3.5 pounds of strawberries? (round to the nearest hundredt
h) Proportion Answer

Answers

$6.25 jdhdhdhdhdhdbrr

Which expression is equivalent to x6 – 9?


(x3)2 – 33

(x3)2 – 32


(x3)3 – 32

This polynomial is an example of a .

Answers

Step-by-step explanation:

[tex] {x}^{6} - 9 = { ({x}^{3} })^{2} - {3}^{2} [/tex]

Answer:

(x^3)^2-3^2 , or b.

and its the diffrence of suqares.

Step-by-step explanation:

PLEASE HELP!!! URGENT!!!!!!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

For a relation to be a function then every value of x must map to exactly one unique value of y.

Here every x- value corresponds to exactly one y- value

Then the ordered pairs represent a function

euler formula find the number of edges of a polyhedron of 6 faces and 4 verticies

Answers

Euler's polyhedron formula, V − E + F = 2

[tex] = 4 - E + 6 = 2 \\ = E - 10 = 2 \\ = E = 2 + 10 \\ = E = 12[/tex]

if 3/ 4 part of the total number of students in a class are girls how much percent are boys ​

Answers

Answer:

1

Step-by-step explanation: because 3 are girls and 3 + 1 equals 4 its 1

Answer:

1/4 or 25% are boys

Step-by-step explanation:

3/4 + 1/4 = 4/4

75% + 25% = 100%


Laura is training to run a race. She keeps track of the number of miles she runs. She has been training for 5 weeks, and she has run a total
of 40 miles. At what rate has she been running, in miles per week?

Answers

Answer:

8 miles per week!

Step-by-step explanation:

40 miles / 5 weeks = 8!

so it would be 8 miles per week.

i hope this helps!!

8
-6
4

-8-
What is the domain of function m?
co
-2
-8
6
- 4
x
HELPP

Answers

Answer:

( - ∞, ∞ )

Step-by-step explanation:

The domain of the function is all values of x , that is

- ∞ < x < ∞ , or in interval notation

(- ∞, ∞ )

What is the average rate of change of the function f(x)=120(0. 1)x from x = 0 to x = 2? Enter your answer, as a decimal, in the box. Do not round your answer.

Answers

The average rate of change of the function is -59.4

The formula for calculating the rate of change of the function is expressed as:

[tex]f'(x)=\frac{f(b)-f(a)}{b-a}[/tex]

Given the function

[tex]f(x)=120(0.1)^x\\f(0) = 120(0.1)^0\\f(0)=120\\[/tex]

Get the value of f(2)

[tex]f(2)=120(0.1)^2\\f(2) = 120(0.1)^2\\f(2)=1.2\\[/tex]

Substitute into the formula to have:

[tex]f'(x)=\frac{1.2-120}{2-0}\\f'(x)=\frac{118.8}{2} \\f'(x)= -59.4[/tex]

Hence the average rate of change of the function is -59.4

Learn more on the rate of change here: https://brainly.com/question/11627203

Whitch of the following equations best describes the line containing all three points ?

Answers

Attach a picture to this question so I know what to look for.
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