The digit 8 in which number represents a value of 8 thousandths?
Choose 1 answer:
A) 4.618
B) 8,000.1
C) 7.822

Answer:

-9x^2 - 9x + 18

Step-by-step explanation:

-9 • (x - 1) • (x + 2)

-9x + 9 • (x + 2)

-9x^2 -18x + 9x + 18

-9x^2 - 9x + 18

Answer:

y = - 9x² - 9x + 18

Step-by-step explanation:

y = - 9(x - 1)(x + 2) ← expand factors using FOIL

   = - 9(x² + x - 2) ← distribute parenthesis by - 9

y = - 9x² - 9x + 18 ← in standard form

If each machine makes popcorn for 10 minutes, there will be enough popcorn as machine A and machine B make 87.5 ounces in 10 minutes.

According to the question,

We have the following information:

Machine A makes 12.75 ounces of popcorn in 3 minutes.

So, we will find the ounces of popcorn in 1 minute:

3 minutes = 12.75 ounces

1 minute = 12.75/3 ounces

1 minute = 4.25 ounces

So, in 10 minutes machine A will make:

10 minutes = (4.25*10) ounces

10 minutes = 42.5 ounces

Machine B makes 18 ounces of popcorn in 4 minutes.

So, we will find the ounces of popcorn in 1 minute made by machine B:

4 minutes = 18 ounces

1 minute = 18/4 ounces

1 minute = 4.5 ounces

So, in 10 minutes machine B will make:

10 minutes = (4.5*10) ounces

10 minutes = 45 ounces

Now, the total amount of popcorn made by both the machines will be:

Popcorn made by machine A in 10 minutes + Popcorn made by machine B in 10 minutes

42.5 + 45

87.5 ounces

Now, the eight 9-ounce bags mean that there will be 72 ounces of popcorn.

So, we have:

87.5 ounces is greater than 72 ounces.

Hence, the correct option is B.

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As given, the amount of copper is 0.9009. You have used 95% of the copper, then the amount of copper used is 0.9009 * 0.95 = 0.855855.

To find the cross-sectional area of the wire, we will use the formula for resistance
\(R = ρ(L/A)\),

To calculate the cross-sectional area of the wire, we can re-arrange the above formula,\(A = ρL / R = (1.72 * 10^-8 m) (1 m) / (0.673 Ω) = 2.56 * 10^-8 m²\)

To find the diameter of the wire, we will use the formula for the area of a circle,
\(A = πr²\), where r is the radius of the wire. Substituting the value of A in the above formula, we get
\(,πr² = 2.56 * 10^-8 m²T\)
r = \(√(2.56 * 10^-8 m² / π) = 8.063 * 10^-5 m\)

The diameter of the wire is
\(,D = 2r = 2 * 8.063 * 10^-5 m = 1.61 * 10^-4 m\)

The diameter of the wire is \(1.61 * 10^-4\) m.

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Answer:

I think it is 90%

Step-by-step explanation:

this is the case because 54/60 will be 9/10 if reduced

The bug changes direction at t = 4. This can be answered by the concept of velocity.

To determine when the bug changes direction, we need to find when its velocity changes sign from positive to negative. From the graph, we see that the bug's velocity is positive for t < 4 and negative for t > 4. Therefore, the bug changes direction at t = 4.

To verify this, we can look at the behavior of the bug's velocity as it approaches t = 4. From the graph, we see that the bug's velocity is increasing as it approaches t = 4 from the left, and decreasing as it approaches t = 4 from the right. This indicates that the bug is reaching a maximum velocity at t = 4, which is when it changes direction.

Therefore, the bug changes direction at t = 4.

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For each given sample result, the p-value and conclusion are as follows:

a. p-value = 0.0067, Conclusion: Reject H0,  b. p-value = 0.0830, Conclusion: Fail to reject H0, c. p-value = 0.0322, Conclusion: Reject H0

d. p-value = 0.6221, Conclusion: Fail to reject H0

The p-value is a measure of the evidence against the null hypothesis (H0). It represents the probability of obtaining a sample result as extreme as or more extreme than the observed result, assuming the null hypothesis is true. A p-value less than the significance level (α) indicates strong evidence against the null hypothesis and suggests that the alternative hypothesis (Ha) may be true.

a. For p = .68, we need to determine the probability of observing a sample proportion as extreme as or less than .68, assuming the null hypothesis is true. By conducting the appropriate statistical test (e.g., using the normal approximation to the binomial distribution), we find the p-value to be 0.0067. Since the p-value is less than α = .05, we reject the null hypothesis and conclude that there is evidence to support the claim that the proportion is less than .75.

b. For p = .72, the p-value represents the probability of observing a sample proportion as extreme as or less than .72. Calculating the p-value using the appropriate statistical test yields 0.0830. Since the p-value is greater than α = .05, we fail to reject the null hypothesis. Therefore, we do not have sufficient evidence to conclude that the proportion is less than .75.

c. With p = .70, the p-value indicates the probability of observing a sample proportion as extreme as or less than .70. The calculated p-value is 0.0322. As the p-value is less than α = .05, we reject the null hypothesis and conclude that there is evidence to suggest that the proportion is less than .75.

d. For p = .77, the p-value represents the probability of observing a sample proportion as extreme as or greater than .77. After performing the necessary calculations, we find the p-value to be 0.6221. Since the p-value is much greater than α = .05, we fail to reject the null hypothesis. Consequently, we do not have sufficient evidence to conclude that the proportion is less than .75.

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Answer:

x=-3/7

Step-by-step explanation:

multiply both side by 21, move constant to the right and change its sign, collect the terms, divide both side by 7

The values for g and f for the length of sides of the trapezium are 8 and 6 respectively.

Given the area of trapezium = 60 cm², then:

1/2 × (g + 4g) × f = 60 cm²

by simplification

f(g + 2) = 60 cm²...(1)

for the area of ABCD = 48 cm², then:

f × g = 48 cm²

f = 48/g...(2)

put 48/g for f in equation (1) to get g;

48/g(g + 2) = 60

60g = 48g + 96 {cross multiplication}

60g - 48g = 96 {collect like terms}

12g = 96

g = 96/11 {divide through by 11}

g = 8

put 8 for g in equation (2) to get f;

f = 48/8

f = 6.

Therefore, the values for g and f for the length of sides of the trapezium are 8 and 6 respectively.

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The parameter u in a paired t procedure represents the mean difference in the responses to the two groups within pairs of subjects in the entire population.

This means that u captures the average change or effect observed when comparing the two related groups.

To elaborate further:

The parameter u represents a specific measure of interest in a paired t procedure.  In a paired t procedure, the data consists of paired observations, where each observation is made on the same subject or item under different conditions.

The parameter u represents the mean difference between the paired observations for the entire population. It quantifies the average change or effect observed between the two groups being compared within the pairs of subjects. By estimating the value of u from a sample, we can make inferences about the population parameter and test hypotheses regarding the difference between the two groups.

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The repairs have indeed changed the nature of the output of the machine, with an overall improvement in the quality of the parts produced.

To determine if the repairs have changed the nature of the output of the machine, we can compare the percentages of excellent, good, and unacceptable parts before and after the repairs.

Before repairs:
- 80% excellent
- 16% good
- 4% unacceptable

After repairs, we can calculate the percentages based on the sample of 200 parts:
- 157 excellent parts: (157/200) * 100 = 78.5% excellent
- 42 good parts: (42/200) * 100 = 21% good
- 1 unacceptable part: (1/200) * 100 = 0.5% unacceptable

Comparing these percentages, we can see that the output has changed after the repairs:
- Excellent parts decreased from 80% to 78.5%
- Good parts increased from 16% to 21%
- Unacceptable parts decreased from 4% to 0.5%

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Step-by-step explanation:

" role="presentation" style="outline: 0px; display: inline-table; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 17.017px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">√x=5x=5

Answer:

Step-by-step explanation:

" role="presentation" style="outline: 0px; display: inline-table; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 17.017px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">√x=5x=5

Answer:

3z+8

Step-by-step explanation:

3x+2−2+8

=3x+2+−2+8

Combine Like Terms:

=3x+2+−2+8

=(3x)+(2+−2+8)

=3x+8

Answer:

B

Step-by-step explanation:

This is a neat question

f(x) - g(x) = 2x           Add g(x) to both sides

f(x) = g(x) + 2x

Now you need the right hand side to have 20 added to g(x).

2x must = 20

2x = 20                    Divide by 2

x = 20/2

x = 10

So the answer must be x = 10

The multiple of 28 are;

Thus, the factor pairs are;

1. x < 20

x - 7 < 13

x < 20

2. x > -7

-3(x + 4) < 9

-3x - 12 < 9

-3x < 21

x > -7

Hope this helps!

The correct combination of boxes in the diagram is: Resources, Market Position, and Debt. These three elements are central to the RA theory and are interconnected in their influence on a firm's competitive advantage and performance.

In presenting Resource-Advantage (RA) theory, Hunt and Lambe (2000) use a boxes-and-arrows diagram called "A Schematic of RA Theory of Competition." This diagram illustrates the key elements of the theory and their relationships. The boxes in the diagram represent important components or factors, while the arrows indicate the directional relationships between these components.

Resources refer to the tangible and intangible assets that a firm possesses, including physical, financial, human, and intellectual resources. These resources provide the foundation for a firm's competitive advantage and can include factors such as technology, brand reputation, skilled workforce, and financial capital.

Market Position represents a firm's strategic positioning within its target market. It encompasses factors such as customer perceptions, market share, competitive differentiation, and market reputation. A strong market position enables a firm to leverage its resources effectively and gain a competitive edge.

Debt refers to the financial obligations or liabilities that a firm has, including loans, bonds, and other forms of debt financing. Debt can impact a firm's financial performance and stability, as well as its ability to invest in resources and maintain its market position.

By considering the interplay between resources, market position, and debt, the RA theory emphasizes how firms can leverage their resource advantages to strengthen their market position and achieve better financial performance. This framework highlights the importance of aligning these elements strategically and efficiently managing resources and debt to gain a sustainable competitive advantage in the marketplace.

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When comparing means of three or more conditions, an analysis of variance (ANOVA) should be used instead of multiple t-tests. This is because using multiple t-tests increases the risk of a type I error, where a significant difference is found when there is none. ANOVA controls for this by using a single test to determine if there is a significant difference between the means. Additionally, using multiple t-tests increases the risk of a type II error, where a significant difference is not found when there is one.

ANOVA is also more likely to detect statistical significance between the means because it takes into account the variability within each condition as well as the variability between conditions. This increases the power of the test and reduces the chances of missing a significant difference between the means.

When using ANOVA, the results can indicate that there are no differences between any of the population means (option a), that at least one of the three population means is different from another population mean (option b), that all three of the population means are different from each other (option c), or that one population mean is different from one of the other population means, but not the other population mean (option d).

Finally, ANOVA provides a measure of effect size, typically reported as r2, which indicates the proportion of variability in the data that can be attributed to the differences between the conditions. This can be useful in determining the practical significance of the results.

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Answer:

6

Step-by-step explanation:

1/2 cup = 1 dog

1 cup = 2 dogs

x3 = 6

Answer:

Elena has five dogs.

Step-by-step explanation:

Each dog eats two-third cups of dog food. A total of three and one-third cups of food is used up

The roots of the equation are 9 + 3i and 9 - 3i in simplest a + bi form.

What is meant by roots?

A root is a value that satisfies an equation, for example, the solution of an equation when set equal to zero. The roots of an equation are often called solutions or zeros of the equation.

What is a equation?

An equation is a mathematical statement that shows that two expressions are equal. It usually consists of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division.

According to the given information

To find the roots of the equation x² - 18x + 90 = 0 in simplest a + bi form, we can use the quadratic formula:

x = (-b ± √(b² - 4ac)) / 2a

where a = 1, b = -18, and c = 90.Plugging in these values, we get:

x = (18 ± √((-18)² - 4(1)(90))) / 2(1)

x = (18 ± √(324 - 360)) / 2

x = (18 ± √(-36)) / 2

The discriminant (-36) is negative, which means that the roots are complex conjugates. Therefore, we can simplify the expression as follows:

x = (18 ± 6i) / 2

x = 9 ± 3i

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Elevation = 0 - 1050 × Time or Elevation = -1050t, where Elevation is in feet and Time is in hours, is the expression that describes the connection between the submarine's elevation and time.

Seconds, mins max, minutes, days, periods, months, and years are the fundamental elements of time. To determine the time of day, we use secs, minutes, as well as hours; to determine the date, we use times, months, and years. The lesser measures of time are seconds, minutes, and hours, while the larger ones are days, months, and years.

Assuming that the submarine is descending at a constant rate, we can use the equation:

Elevation = Initial Elevation - Rate × Time

where Initial Elevation is the starting elevation (in this case, the surface), Rate is the rate of descent, Time is the time elapsed, and Elevation is the current elevation.

In this case, the Initial Elevation is 0 feet (the surface), the Rate is -1050 feet per hour (since the submarine is descending at a rate of 1050 feet per hour), and Time is the elapsed time in hours.

Therefore, the equation that represents the relationship between the submarine's elevation and time is:

Elevation = 0 - 1050 × Time

or

Elevation = -1050t

where Elevation is in feet and Time is in hours.

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The expression given is matched with the equivalent expression

Match the expression with its equivalent. Expression: I am assuming that this is the expression a. xya+b  b.29 c.x-a.b d.(ª)b ª e. f.x².ya g.x.x h.x.xya i.i.Vxaya xªy k.xy Equivalent: 1. (xy)a 2+b 3.2ª-b 4.

Step-by-step explanation The equivalent expression of each of the following expressions is given below: Expression Equivalent 1.

I am assuming that this is the expression xya + b (xy)a 2+b2. 29 293. x - a (ª)b ª2ª - b4. (ª)b ª (ª)b ª5. x².ya x².ya6. x.x x²7. x.xya x²ya8. i. Vxaya xªy V(xy)ª/29. xy xyHence, the given expression is matched with the equivalent expression.

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The area of the field is 10,765.44 square meters.

Given that:

Diameter, d = 72 m

Width, W = 72 m

Length, L = 93 m

The area of a two - dimensional figure is the area that its perimeter encloses. The quantity of unit squares that occupy a closed figure's surface is its region.

The area of the field is calculated as,

A = (π/4)d² + W·L

A = (3.14 / 4) x 72² + 72 x 93

A = 4,069.44 + 6,696

A = 10,765.44 square meters

The area of the field is 10,765.44 square meters.

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Answer:

false, false, true

Step-by-step explanation:

0 times anything is always 0. 7 with an exponent of 3 is never 7*3, it's 7*7*7. for the last one, 2*2*2*2 is 16 and so is 4*4. lol im pretty dumb too tbh

=============================================

Work Shown:

(zinc)/(copper) = 3/14

(x grams of zinc)/(574 grams of copper) = 3/14

x/574 = 3/14

14x = 574*3

x = 574*3/14

x = 123 grams of zinc

The cost of making 100 units is $5,400, and the cost of making 150 units is $7,500. We can write these statements in the form of an equation:
C(100) = 5400C(150) = 7500 . We need to determine the cost function C(r), assuming the cost follows a linear model.

Step 1: Find the slope of the line (m) .

Step 2: Find the y-intercept (b) of the line . To find the y-intercept (b) of the line, we can use the point-slope form of the line equation, where the point is (100, 5400). The slope of the line is 21, so the equation of the line is : \(C(r) - 5400 = 21(r - 100)C(r) = 21r - 2100This is the cost function C(r).The price of the units is given by p = 92.02x.\)

\(Total revenue = Total costp(x) * x = C(x)92.02x * x = (21x - 2100) * xx(92.02 - 21) = 2100x = 105.8\)

So, the number of units that need to be sold to break even is 106 units.

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Answer:

The answer is... x = 7 I used an app called Cymath is goes down step by step to help.

Step-by-step explanation:

I hope I helped you! :)

Answer:

the anwser is d

Step-by-step explanation: