Question 7 (Essay Worth 5 points) (7.03) An equation is shown below: 5(2x - 8) + 15 = -15 Write the steps you will use to solve the equation and explain each step.

Answer:

  12

Step-by-step explanation:

You want the least common multiple of 3 and 4.

3 and 4 have no common factors, so their least common multiple (LCM) is their product:

  3·4 = 12

The LCM of 3 and 4 is 12.

__

Additional comment

If the numbers have a common factor, then the LCM is their product, divided by the greatest common factor.

For example, 4 and 6 have a common factor of 2. Their LCM is 4·6/2 = 12.

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Answer:

4 and 9/5

Step-by-step explanation:

5and 2/5 = 27/5

7/9 × 27/5 = 189/45

= 4 and 9/5

(a) X-bar bar ≈ 7.83 and (b) R-bar ≈ 4.53. (c) UCL and LCL for X-bar chart: UCL_X-bar ≈ 10.32, LCL_X-bar ≈ 5.34. There are no out-of-control points. (d) UCL and LCL for R chart: UCL_R ≈ 10.36, LCL_R = 0. There are no out-of-control points.

To calculate the required values and control limits for the given sample data, we will perform the following steps:

(a) Calculate X-bar bar:

First, calculate the average of each observation set, then calculate the average of those averages.

X-bar1 = (5.4 + 6.5 + 9.5 + 8.6 + 4.9 + 5) / 6 = 6.73

X-bar2 = (3.8 + 8.2 + 6.5 + 9.7 + 5.6 + 7.7) / 6 = 6.83

X-bar3 = (9 + 7 + 8 + 11 + 7.5 + 9.3) / 6 = 8.92

X-bar bar = (6.73 + 6.83 + 8.92) / 3 ≈ 7.83

(b) Calculate R-bar:

First, calculate the range for each observation set, then calculate the average of those ranges.

Range1 = 9 - 3.8 = 5.2

Range2 = 8.2 - 3.8 = 4.4

Range3 = 11 - 7 = 4

R-bar = (5.2 + 4.4 + 4) / 3 ≈ 4.53

(c) Calculate UCL and LCL for X-bar chart:

UCL_X-bar = X-bar bar + (A2 * R-bar)

LCL_X-bar = X-bar bar - (A2 * R-bar)

Using the A2 factor for a subgroup size of 6 from the control chart constants, we find A2 = 0.577.

UCL_X-bar = 7.83 + (0.577 * 4.53) ≈ 10.32

LCL_X-bar = 7.83 - (0.577 * 4.53) ≈ 5.34

To check for points out of control, we compare the individual X-bar values to the control limits. If any X-bar value is above the UCL or below the LCL, it indicates an out-of-control point. We can observe the X-bar values and compare them to the control limits to determine if there are any out-of-control points.

(d) Calculate UCL and LCL for R chart:

UCL_R = D4 * R-bar

LCL_R = D3 * R-bar

Using the D3 and D4 factors for a subgroup size of 6 from the control chart constants, we find D3 = 0 and D4 = 2.282.

UCL_R = 2.282 * 4.53 ≈ 10.36

LCL_R = 0 * 4.53 = 0

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Answer:

-20x       87y

Step-by-step explanation:

Answer:

Step-by-step explanation:

Now add - x to both sides by the addition rule. Remember, adding the same quantity to both sides of an inequality does not change its direction.

Answer:

A = 1600π cm²

Step-by-step explanation:

We are given that a circle's radius increases 4 cm every second.

We want to know how large the area of the circle is after 10 seconds.

We first need to find how large the radius will be.

We know the proportion of the rate increase / time; for every 1 second, the rate increases by 4 cm.

We can write this as a proportion:

\(\frac{4 cm}{1 s} = \frac{x}{10s}\)

We can cross multiply to get:

4 cm * 10 s = x * 1 s

Divide both sides by 1 s

(4 cm * 10 s) / (1 s) = 40cm = x

So, after 10 seconds, the radius will be 40cm.

We aren't done yet though, remember that the question wants us to find the area of the circle.

The area can be calculated using the equation A = πr², where r is the radius.

We can substitute 40 as r in the equation to get:

A = πr² = π * (40)² = 1600π cm²

Answer:

2.25 feet, 45 inches, and 6 yards

Step-by-step explanation:

first, convert all to the same unit of measurement

I will use inches

45 inches = 45 inches

6 yards, 1 yard = 3 feet so 6 yards are equal to 18 feet and 1 foot is equal to 12 inches so 12*18 is 216 inches so 6 yards = 216 inches

Next 1 foot equals 12 inches so 2.25 * 12 = 27 so 2.25 feet = 27 inches.

Now let's look at the complete conversion

45 inches

6 yards = 216 inches

2.25 feet = 27 inches

looking at the inches we can see that 27 is the least then 45 then 216 therefore

2.25 feet < 45 inches <  6 yards so the order is

2.25 feet, 45 inches, and 6 yards

The surface area of the shape is 168 square cm

The surface area of a figure is the area of the faces of the given figure.

For the given figure, the area will be the sum of area of 2 triangles and 3 rectangles.

Area = (6*3) +(10*6)+(6+10) +(10*3)

Surface area = 18 + 120 + 30

Surface area = 168 square cm

Hence the surface area of the shape is 168 square cm

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Answer:

( intermediates plural ) 1 adj An intermediate stage, level, or position is one that occurs between two other stages, levels, or positions. You should consider breaking the journey with intermediate stopovers at airport hotels.

Step-by-step explanation:

The entry to record the purchase will include: a debit to Supplies and a credit to Accounts Payable

Now, given: Purchased supplies = $500 (on account).

To find: What does entry to record the purchase include?

Now,

Hence, the entry to record the purchase will include: a debit to Supplies and a credit to Accounts Payable.

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Answer:

b. 12 and 13

Step-by-step explanation:

I hope I was of use to you! (. ❛ ᴗ ❛.)

On the 8th day they will be exactly 5 inches tall

Answer:

What is the question itself?

Answer:

Step-by-step explanation:

I haven't done this in a long time so I don't know how you would write this but I will explain it.

For every 6 in puts you will get 1 out put.

also for the blank space on 42 is 7.

Hope this helps!!

Answer:

The question is asking you to measure it, so I'm assuming you would do so with a ruler and get the exact measurement in centimetres.

D. y-2 cos(2x) + 4 is not a solution to the differential equation y" + 4y = 0.

The differential equation y" + 4y = 0 is a second-order, homogeneous linear differential equation with constant coefficients. The general solution to this type of differential equation is of the form y = e^(rt) where r is a root of the characteristic equation r² + 4 = 0. The roots of this equation are r = +/- √(4) = +/- 2i, which are both imaginary. Therefore, the general solution to the differential equation is y = c1cos(2x) + c2*sin(2x), where c1 and c2 are arbitrary constants.

Option D. y - 2 cos(2x) + 4 is not a solution to this differential equation because it doesn't have the same form as the general solution. It is a combination of a constant term, cosine and sine function but the general solution only contains sine and cosine function.

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The area of the rectangle will be 18a³b^6

The area of the circle will be 25x^6π

The area of the triangle will be 12a³c⁴

The area of a shape simply means the total space that is taken by the shape. It simply expresses the extent of the region on a particular plane as well as a curved surface.

The area of the rectangle will be:

= Length × Width

= 6a²b⁴ × 3ab²

= 18a³b^6

The area of the circle will be:

= πr²

= π × (5x³)

= 25x^6π

The area of the triangle will be:

= 1/2 × base × height

= 1/2 × 4a²c × 6ac³

= 2a²c × 6ac³.

= 12a³c⁴

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Answer:

it will be 12 hope this helps

Answer:

tbh idek im sorry

Step-by-step explanation:

Answer:

a. The number of different combinations of 2 components that can be chosen from a group of 12 is given by the formula:

nC2 = (n!)/(2!(n-2)!), where n is the total number of components

Substituting n = 12, we get:

nC2 = (12!)/(2!(12-2)!) = (12 x 11)/2 = 66

Therefore, there are 66 different combinations of 2 components that can be chosen from the group of 12.

b. The probability that the faulty component will be chosen for testing depends on the number of ways in which the faulty component can be chosen, and the total number of ways in which any 2 components can be chosen.

The probability of choosing the faulty component on the first pick is 1/12, as there is one faulty component out of a total of 12 components.

After the first component has been picked, there will be 11 components left, including one faulty component. Therefore, the probability of picking the faulty component on the second pick, given that the first pick did not pick the faulty component, is 1/11.

Therefore, the probability of picking the faulty component on either the first or second pick is:

P(faulty component) = P(faulty on first pick) + P(faulty on second pick, given not picked on first pick)

P(faulty component) = (1/12) + ((11/12) x (1/11))

P(faulty component) = 1/12 + 1/12

P(faulty component) = 1/6

Therefore, the probability of choosing the faulty component for testing is 1/6 or approximately 0.1667.

Answer:

can you send a pic of the assignment

Step-by-step explanation:

(i will edit answer)

Your calculation and explanation for finding the margin of safety ratio and percentage are correct.

The margin of safety ratio measures the buffer that a company has between its current level of sales and its break-even point, while the margin of safety percentage expresses this ratio as a percentage of current sales. In the given example, the margin of safety ratio is 0.25 or 25%, which means that JGrant Company's current sales level is 25% above its break-even point.

what is percentage?

Percentage is a way of expressing a number as a fraction of 100. It is often used to describe a part of a whole, or to compare two quantities. For example, if there are 20 red marbles and 80 green marbles in a jar, the percentage of red marbles is 20/100 or 20%, and the percentage of green marbles is 80/100 or 80%. Percentages are often represented using the % symbol.

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Answer:

20%

Step-by-step explanation:

old selling price = $720

new selling price = 720 x (1 - 30%) = 720 x 70% = $504

cost = $420

markup = (504 - 420)/ 420 = 84/420 = 20%

Answer:

The Answer is: C.120

Answer:

∠ RST = 120°

Step-by-step explanation:

∠ RST = ∠ RSU + ∠ UST , substitute values

6x + 12 = 78 + 3x - 12

6x + 12 = 3x + 66 ( subtract 3x from both sides )

3x + 12 = 66 ( subtract 12 from both sides )

3x = 54 ( divide both sides by 3 )

x = 18

Thus

∠ RST = 6x + 12 = 6(18) + 12 = 108 + 12 = 120°

We know that 1 inch = 0.083 feet

Therefore,

Thus the ratio is 0.83

Answer:

8/100 Simplified is 2/25 in it's simplest form!

Step-by-step explanation:

Hope this helps! :)

Have a great day!

The number 8 % as a fraction in the simplest from is 2/25

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number be represented as A

Now , the value of A is = 8 %

So , the equation will be

The value of A = 8 %

Now , the value 8 percentage can be written as a fraction of 100

So , the value of A will be

The value of A = 8/100

Now , on dividing the numerator and denominator by 4 , we get

The value of A = 2 / 25

So , the value of A in the simplest form of the number A is 2/25

Hence , The number 8 % as a fraction in the simplest from is 2/25

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Answer:

1/4

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

1/4 is the simpleist form (sorry for my bad grammer)

Answer:

-4.29

Step-by-step explanation:

The computation of the z score is shown below:

data provided in the question

Average minutes = 16 minutes

Standard deviation = 1.4 minutes

Amount of advertising time = 8 minutes

Based on the above information, the z score is

\(= \frac{x-m}{\sigma} \\\\ = \frac{8-14}{\1.4} \\\\ = \frac{-6}{1.4}\)

= -4.29

Hence, the z score is -4.29. It is come by considering the above formula

Answer:

There is no fixed domain, meaning it is ongoing

The range is from -1 ≤ x ≤ 3

It is a function

Step-by-step explanation:

Domain refers to the x values. If there was a domain then there would be a dot or a point signalling that there is a fixed domain, however, there are arrows meaning that it will keep going.

The range refers to the y-values. The lowest y-value is -1 and the highest is 3.

It is a function because, when you do the vertical line test, each x-value has its own y-value.