A local employer asked for help selecting a new type of desk chair. Thirty employees volunteered, and each employee used the new desk chair for two weeks and the current desk chair for two weeks. To determine which chair was used first, a coin was flipped for each employee. Heads represented using the new chair first, and tails represented using the current chair first. At the end of each two-week period, the employees were asked to rate their satisfaction with the new chair. Which of the following best describes this study?

Answer:

if x was 3... itd be 2

Step-by-st/ep explanation:

Evaluate for x=3

1+

√3

1

−√3+1−

√3

1

+√3

1+

√3

1

−√3+1−

√3

1

+√3

=2

Answer:

Domain: (-∞, ∞)

Range: (-∞, ∞)

Step-by-step explanation:

Given the linear function, x + 10 = y,

Its domain is the set of all real numbers, as represented in the interval notation, (-∞, ∞).

The same goes with range, the set of all real numbers, as represented in the interval notation, (-∞, ∞).

here ...

let us suppose breadth of the room be x.

then, length = 2x

now ,the cost of plastering the floor is RS 1080 at rate of RS 15 per ...

hence

the area of floor{length *breadth} =1080/15

x*2x=72

or,2x^2=72

or,x=√(72/2)

hence, the value of x= 6m

(ie. breadth {x}=6. &. length {2x}=12)

again....

we have ,

volume of the room (length *breadth*height)is 396m^3

12*6*height=396

72*height=396

height=396/72

hence , height=5.5

we know,

the area of 4 walls = 2( length+breadth)*height

=2(12+6)*5.5

=198

hence the cost of plastering 4 walls at the rate of RS 20 per SQ meter = 198*20=RS 3960

Answer:

m GHI = 82°

Step-by-step explanation:

59+39=98

180-98=82 <==== answer

180 is the total amount of degree

Answer:n=85

Step-by-step explanation:

Answer:

Your answer is n = 85

Step-by-step explanation:

4n = 400 - 60

4n = 340

n = 340 / 4

n = 85

Hope this helps!

Answer:

y = mx + b is the slope intercept form of writing the equation of a straight line. In the equation 'y = mx + b', 'b' is the point, where the line intersects the 'y axis' and 'm' denotes the slope of the line. The slope or gradient of a line describes how steep a line is. It can have either a positive or a negative value. When a standard form of a linear equation is of the form Ax + By = C, where 'x' and 'y' and 'C' are variables and 'A', 'B' are constants, the slope-intercept form is the most preferred way of expressing a straight line due to its simplicity, as it is very easy to find the slope and the 'y intercept' from the given equation.

Meaning of y = mx + b

y = mx + b is the slope-intercept form of a staight line. In the equation y = mx + b for a straight line, m is called the slope of the line and b is the y-intercept of a line. y = mx+b, where

y ⇒ how far up or down is the line,

x ⇒ how far along is the line,

b ⇒ the value of y when x = 0 and

m ⇒ how steep the line is.

This is determined by m = (difference in y coordinates)/ (difference in x coordinates). Note that difference in y coordinates is indicated as rise or fall and difference in x coordinates is indicated as run.

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

If you solve the equation, you get x is less than or equal to -2. Since -1 is the only number that doesn't satisfy this inequality, A is the answer.

Answer:

3x - 5 > 4x - 3

-1 is the answer (A)

Step-by-step explanation:

Answer:

The equation is y= 0,65 x

If x is the price of the ticket without the coupon, and the theater offers a discount if you have a coupon, then having a coupon means that the price a person ultimately  pays (y) is  the original price (x) minus a 35% of this price: y= x -0.35 x . By association: y= (1-0.35) x and then y= 0.65 x.

The line should be in the first quadrant because the first quadrant allows you to represent a situation in which the dependent variable (y) and the independent variable (x) are both positive. This is the case in this exercise, because both prices, the one without discount (x) and the one with discount (y) are necessary positive (you can not pay a negative price!).

Step-by-step explanation:

The price without discount (or without the coupon) is x.

The price with discount (or with coupon) is y.

y and x are both related: y is a percentage of x, specifically, y is 35% smaller than x. This means that y =0.65 x.

Answer:

0.85x

Step-by-step explanation:

Not what the guy on the top said.

Answer:

Q1: 250

Q2: 50

Step-by-step explanation:

Q1: 14,000 + 160x = 24,000 - 200x

24,000 - 14,000 = 10,000

200x - 160x = 40x

10,000/40x = 250

Q2: 800 - 6x = 1,000 - 10x

1,000 - 800 = 200

10x - 6x = 4x

200/4x = 50

Answer:

The answer is differently C

Answer:

[tex]X1/12=491/24[/tex]

[tex]By \: cross \: multiplication,[/tex]

[tex]24x=491×12[/tex]

[tex]x=5892/24[/tex]

[tex]x=245.5[/tex]

Answer:

A

Step-by-step explanation:

just did it :)

The statement that best describes how ultrasound can produce an image is sound waves that form outside the body reflect off the body and are detected by the machine.

Diagnostic ultrasound, also called sonography or diagnostic medical sonography, is an imaging method that uses sound waves to produce images of structures within your body.

We have some statements that describes how ultrasound can produce an image.

The ultrasound image is produced based on the reflection of the waves off of the body structures. The strength (amplitude) of the sound signal and the time it takes for the wave to travel through the body to provide the information necessary to produce an image.

Therefore, the statement that best describes how ultrasound can produce an image is sound waves that form outside the body reflect off the body and are detected by the machine.

To solve more questions on sound waves, visit the link below -

https://brainly.com/question/29767263

#SPJ2

Answer:

the answer is 18

Step-by-step explanation:

7+9÷3+2x4= 18

Answer:

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Step-by-step explanation:

Answer:

9.6 cm

Step-by-step explanation:

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

we know that volume of a sphere is :

so, let's solve for radius (r) :

value of radius (r) = 6 units

Answer: 2401

Step-by-step explanation: Yes

the number multiplied by itself is 7

Answer:  36°  and 54°

Step-by-step explanation:

Let the larger angle be 'R' and the smaller angle 'q'

⇒       R + q = 90     [since complementary angles have a sum of 90°]

Then  R - q = 18   [since 1 of 2 complementary angles is 18 less than other]

We can combine the equation

(18 + q) + q = 90

     18 + 2q = 90

            2q = 72

               q = 36

We can solve for R

             R - 36 = 18

                    q = 36 + 18

                    q = 54

Answer: Slope: 2/3

Plug the equation into y2 - y1 / x2 - x1 and you should have the answer!

Answer:11 people

Step-by-step explanation:

Answer:

-6M

Step-by-step explanation:

djdurjjrfjfrjrjrjrf

Answer: $14.40

Step-by-step explanation:

Full price = $18.00

20% discount of full price = $18.00 x [tex]\frac{20}{100}[/tex]

                                           = $18.00 x 0.2

                                           = $3.60

Price paid after 20% discount = full price minus 20% discount

                                                  = $18.00 - $3.60

                                                  = $14.40

Answer:

y = -4x + 12

Step-by-step explanation:

Parallel lines have the same slope. Since the slope of the given equation is -4, then the slope of the other line parallel to it must be the same.

Using the slope, m = -4, and the given point, (2, 4):

Substitute these values into the slope-intercept form:

y = mx + b

4 = -4(2) + b

4 = -8 + b

4 + 8  = -8 + 8 +  b

12 = b

Therefore, the equation of the line parallel to  y + 6 = -4(x - 1) is:

y = -4x + 12

Answer:

4x-2

Step-by-step explanation:

Slope intercept form is y=mx+b, so get y on one side.

do the multiplication first -4(x-1) is -4x+4

Now move the six to the other side; y=-4x+4-6

Simplify, y=-4x-2

Answer:

a(x)= 3mx+4

Step-by-step explanation:

have a lovely day <3

Answer:

[tex]b = -a +\frac{1}{4}c[/tex]

Step-by-step explanation:

Step 1: Flip the equation.

Step 2: Subtract 4a from both sides.

Step 3: Divide both sides by 4.

Therefore, the answer is [tex]b = -a + \frac{1}{4}c[/tex].

Hope you have a lovely rest of your day/night.

Answer:

b = [tex]\frac{c - 4a}{4}[/tex]

Step-by-step explanation:

c = 4a + 4b

Subtract 4a from both sides:

c - 4a = 4a - 4a + 4b

c - 4a = 4b

Divide both sides by 4 to solve for b:

[tex]\frac{c - 4a}{4} = \frac{4b}{4}[/tex]

b = [tex]\frac{c - 4a}{4}[/tex]

Please mark my answers as the Brainliest if you find my solutio helpful :)

Step-by-step explanation:

The sum of an infinite geometric series is expressed according to the formula;

a 1 r where;

a is the first term of the series

r is the common ratio

If the sum of an infinite geometric series is three times the first term, this is expressed as

S∞ = 3a

Substitute S = 3a into the formula above to get the common ratio r;

a

3a 1-r

cross multiply

3a(1-r) = a

3(1-r) = 1

open the parenthesis

3- 3r 1

subtract 3 from both sides

33r31-3

-3r = -2

2|3 r =

Hence the common ratio of this series is 2 upon 3

= 2\3

Answer:

?????

Step-by-step explanation: