Mathematics High School

do positive numbers have negative square roots?

Answers

Answer 1

Yes. They have two square roots. Both have the same absolute value but one is positive while the other is negative.

Related Questions

hewlp me now and uh plkz plz plz

Answers

Answer:

r=22

Step-by-step explanation:

Answer:

r = 22

Step-by-step explanation:

Given

[tex]\frac{1}{2}[/tex] r + 4 = [tex]\frac{3}{4}[/tex] r - [tex]\frac{3}{2}[/tex]

Multiply through by 4 to clear the fractions

2r + 16 = 3r - 6 ( subtract 2r from both sides )

16 = r - 6 ( add 6 to both sides )

22 = r

Please answer correctly !!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

9x - 5 = 7x + 3

2x = 8

x = 4

GameStop sold 120 copies of Call of Duty. This was 30% of their supply. How
many copies of Call of Duty did they have before the store opened? *

Answers

Answer:

415 Call of Duty

Step-by-step explanation:

120*3=360 which is 90%

120/2=60

360+60=420

420=105%

The store had 400 copies of the game in stock before it opened.

If 30% = 0.3, then you multiply 120 by 0.3 and you get 400.

I checked the answer by multiplying 400 by 0.3 and you’ll be back to 120.

15 points + brainliest hurry plz its an image

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The answer would lead to C

Solve for X, and show the equation you would use to solve.

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Answer:

x = 20

Step-by-step explanation:

There are both consecutive interior angles and are supplementary.

The equation should be written like this:

5x + 50 + x + 10 = 180

Step 1: Simplify both sides of the equation.

5x + 50 + x + 10 = 180

(5x+x) + (50+10) = 180 (Combine Like Terms)

6x + 60 = 180

Step 2: Subtract 60 from both sides.

6x + 60 − 60 = 180 − 60

6x = 120

Step 3: Divide both sides by 6.

[tex]\frac{6x}{6} = \frac{120}{6}[/tex]

x = 20

Hope it helps!!

340 equals 72 more than y
Write the sentence as an equation.

Answers

Answer:

y+72=340

Step-by-step explanation:

A rational function in the form axm+.../bxn+... has a slant (oblique) asymptote when ________.

PLEASE HELP

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Answer:

occurs when the polynomial in the numerator is a higher degree than the polynomial in the denominator

Step-by-step explanation:

7x_____=1 Help pls lol

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Answer:

Step-by-step explanation:

Answer:

I dont think there an answer to that question can you tell us the options

Find the value of x using segment addition below.

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The answer is x=5

You get this answer by combining

2x-3+2=x+4

-4x-y+4 when x=-1 4 and y=3

Answers

Answer:

Step-by-step explanation:

-4x - y + 4

-4(-14) - 3 + 4

56 - 3 + 4

53 + 4

Answer:

Step-by-step explanation:

The values of x and y are given. So, plug in the given values into the equation.

-4x-y+4

-4(-1/4)-(3)+4=?

1-3+4=?

(I assumed that you wrote -1/4, by the way)

The scale of a map says that 2 cm represents 10 km. What is the actual number of kilometers that is represented by 6 centimeters on the map?

Answers

Answer:

6 times 10 to the minus 5

6 cm on the map represents 30 kilometers in reality, with a scale of 2 cm representing 10 km.

In the given map, the scale is 2 cm represents 10 km.

Each centimeter on the map represents 5 km (10 km divided by 2 cm).

We can use the scale of the map, which states that 2 cm represents 10 km, to determine the precise number of kilometers that 6 centimeters on the map represent.

If 2 cm represents 10 km, then 1 cm represents 10 km / 2 cm = 5 km.

6 centimeters on the map represent 6 cm × 5 km/cm = 30 kilometers in reality.

learn more about scale here

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I NEED HELP ASAP PLEASE!!!!

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I believe the answer is 530

umm i think the answer is 530

Simplify the algebraic expression. 4(x - 3) + 2(x + 5)

Answers

Answer:

6x+2

Step-by-step explanation:

4(x-3)+2(x+5)

4x-12+2x+10| Distrubutitive Property

6x-2 | Combine like terms

g = a-c+b, solve for a

Answers

Answer:

g=a-c+b

g+c-b=a

I hope help you

which model represents the equation shown below
-4x+(-2)=3x+(-5)

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Answer:

The answer on edge is C

Step-by-step explanation:

Hope I helped

The volume of a rectangular prism is the product of its length, width, and height. The length of a rectangle prism is 3 feet more than five times its height. The width is 5 feet less than six times its height. Express the length and width in terms of the height h. The length is The width is (Be sure to Write down the expanded form of the expression for the volume: expand the volume expression) (Express the interval in which the In what range must the height fall? He height must be)

Answers

The length and width in terms of the height h is 5h+3 feet and 6h-5 feet respectively, the volume will be [tex]30h^3 - 7h^2 -15h[/tex] units and the height must be in the interval of [tex][0,\infty)[/tex].

According to the question,

The height of the rectangular prism is h.

The length of the rectangular prism is 5h+3 feet

The width of the rectangular prism is 6h-5 feet

The volume of the rectangular prism can be calculated as:

[tex]Length \times width \times height = Volume[/tex]

Substitute the value of height, length and width in the formula:

[tex]V = (5h+3) \times (6h-5) \times h[/tex]

V = [tex](30 h^2 -7h-15)h[/tex]

[tex]V = 30h^3 - 7h^2 -15h[/tex]

The height is always positive. So, the interval in which the In what range must the height fall is [tex][0,\infty)[/tex].

The length and width in terms of the height h is 5h+3 feet and 6h-5 feet respectively and the volume will be [tex]30h^3 - 7h^2 -15h[/tex] units

The height must be in the interval of [tex][0,\infty)[/tex].

Learn more about rectangular prism here:

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what does x equal to?

Answers

Answer:

27.3

Step-by-step explanation:

x = (36.4 x (49 - 28))/21 = 27.3

Solve using elimination.
2x + y = 5
x - 3y = 6

Answers

Answer:

then substitute y in eq 1 to get x

hope this helped you

Please mark as the brainliest (ㆁωㆁ)

f-1(x) = (3х – 5)2 + 12

Answers

Answer:

i think its 3 if im not mistaken

Step-by-step explanation:

Select all the equations that have the same solution as the equation 4x - 12 = 36
A 4x = 48
B 2x - 6 = 18
С
4x = 24
D
X-4 = 24
E 8x - 24 = 72

Answers

Hi :)

A) 4x = 48: x= 12
B) 2x -6 = 18 x=12

4x - 12 = 36

Add 12 to both sides
4x=36+12

Add 36 and 12 to get 48
4x=48

Divide both sides by 4
x= 4/48

Divide 48 by 4 to get 12
x=12

Hope this helps :)

Which value of x makes the equation -5x-(-7-4x) =-2(3x-4 true?

Answers

Answer:

x = 1/5

Step-by-step explanation:

Step 1: Write equation

-5x - (-7 - 4x) = -2(3x - 4)

Step 2: Solve for x

Distribute: -5x + 7 + 4x = -6x + 8Combine like terms: -x + 7 = -6x + 8Add 6x to both sides: 5x + 7 = 8Subtract 7 on both sides: 5x = 1Divide by 5 on both sides: x = 1/5

Step 3: Check

Plug in x to verify it's a solution.

-5(1/5) - (-7 - 4(1/5)) = -2(3(1/5) - 4)

-1 - (-7 - 4/5) = -2(3/5 - 4)

-1 - (-39/5) = -2(-17/5)

-1 + 39/5 = 34/5

34/5 = 34/5

63.2g of sugar is needed to make 8 cakes how much sugar is needed for 12

Answers

Answer: 94.8

Step-by-step explanation:

To find this, you need half of 63.2 which is 31.6. Then add that to 63.2 and bam, your answer.

Answer:

94.8g of sugar

Step-by-step explanation:

Set up a ratio- [tex]\frac{63.2}{8} =\frac{?}{12}[/tex]

cross multiple- [tex]12*63.2=8*?[/tex]

solve- [tex]758.4 = 8*?[/tex]

divide by 8- [tex]758.4/8 = 94.8[/tex]

Solve the equation x/3– 9 = 11

Answers

Answer:

x=60

Step-by-step explanation:

(60/3)-9=11

20-9=11

0.55 minute to 0.1 minute

Answers

Answer:

81.8182% decrease

Step-by-step explanation:

(V2−V1)|V1|×100

=(0.1−0.55)|0.55|×100

=−0.450.55×100

=−0.818182×100

=−81.8182%change

=81.8182%decrease

Write down in terms of n an expression for the nth term of the following sequence 12,10,8,6,4

Answers

Answer:

n-2

Step-by-step explanation:

there is an obvious pattern. Such sequences can be expressed in terms of the nth term of the sequence. In this case, the nth term = 2n. To find the 1st term, put n = 1 into the formula, to find the 4th term, replace the n's by 4's: 4th term = 2 × 4 = 8. The common difference is -2, so the formula for the nth term is 12-2(n-1).

This can be written 12-2n+2=14-2n, so that when n=1, the 1st term is 14-2=12.

The 5th term is 14-10=4; the 6th is 14-12=2. And so on. This is the formula The expression for the total number of tiles in the nth term is the sum of the areas of the rectangles, n2 + n(n – 1) + 2, which can be simpli- fied to 2n2 – n + 2. quadratic sequences with visual models these are just examples: The nth odd number is given by the formula 2*n-1.
In linear sequences only, the 'nth-term rule' gives the value of any term in that sequence at position 'n'. It is written as 'xn ± y' where x = the constant difference between term values and y is a particular number. The rule allows you to work out the terms of a sequence. An arithmetic progression is a sequence where each term is a certain number larger than the previous term. The terms in the sequence are said to increase by a common difference, d. For example: 3, 5, 7, 9, 11, is an arithmetic progression where d = 2. The nth term of this sequence is 2n + 1.

HELP! DUE TODAY! WILL GIVE BRAINLIEST!!

Question:

Select from the drop-down menus to correctly complete each statement

17.2 is 17.2 units to the ( drop-down 1 ) of zero on a number line. The opposite of 17.2 is 17.2 units to the ( drop-down 2 ) of zero on a number line.

Answers

Answer:

#1 would be Right and #2 would be left

Step-by-step explanation:

Pls Mark Brainliest

When you’re diving fractions what does the “change” In “keep, change, flip” tell you to do?

Answers

Answer:

change

Step-by-step explanation:

it means to change the dividing symbol from dividing to multiplying

Solve |t| - 2= -1
A. -1, 3
B. -1, 1
C. -3, 3
D. -3, 1

Answers

Answer:

hope this helps :D

Please help me with these questions!

xoxo, tae's simp :))

Answers

Answer:

104.5 is the volume

Step-by-step explanation:

you do length x width x height but but sense theres no length you do

(1.5+9.5) x (9.5)

*simplify*

11 x 9.5 = 104.5

Answer:

ima tae simp to :)

Step-by-step explanation:

39.99+0.45x=44.99+0.4x

Answers

Answer:

x=100

Step-by-step explanation:

39.99+0.45x=44.99+0.4x

0.45x=5+0.4x

0.05x=5

x=100

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