How do I solve this equation?

Step-by-step explanation:

diameter=9

radius 4.5

circumference=2πr

2×22/7×4.5 =28.2

The average rate of change for the number of shares from 2 minutes to 4 minutes is 25 shares per minute.

To find the average rate of change for the number of shares from 2 minutes to 4 minutes, we need to know the initial number of shares at 2 minutes and the final number of shares at 4 minutes. Once we have those values, we can use the formula:

average rate of change = (final value - initial value) / (time elapsed)

Let's say the initial number of shares at 2 minutes was 100 and the final number of shares at 4 minutes was 150. The time elapsed between 2 minutes and 4 minutes is 2 minutes. Plugging these values into the formula, we get:

average rate of change = (150 - 100) / 2
average rate of change = 50 / 2
average rate of change = 25

Therefore, the average rate of change is 25 shares per minute.

More on change rate: https://brainly.com/question/30597272

#SPJ11

Answer:

each month 3 employees were laid off.

Step-by-step explanation:

the company started with 65 employees 12 months ago, and now there are 29. 65 - 29 = 36. In 12 months, 36 employees were laid off. 36 employees divided by 12 months = 3 employees per month.

The range of the possible values of r^2 is 0 to 1. It represents the proportion of the dependent variable’s variance that can be explained by the independent variable(s).


The coefficient of determination, often denoted as r^2, measures the proportion of the dependent variable’s variance that can be explained by the independent variable(s) in a statistical model. The value of r^2 ranges from 0 to 1.
A value of 0 for r^2 indicates that the independent variable(s) does not explain any of the variance in the dependent variable. On the other hand, a value of 1 implies that the independent variable(s) fully explain the observed variance in the dependent variable.
Therefore, the range of the possible values of r^2 is 0 to 1. Any positive numerical value within this range indicates a degree of explanatory power, while values outside this range are not meaningful in the context of r^2. It serves as a useful tool for assessing the strength of a statistical relationship and the predictive ability of a model.

Learn more about Coefficient of determination here: brainly.com/question/29581430
#SPJ11

Answer:

y = 3x -7

Step-by-step explanation:

Since we already know that the slope is 3 and it goes through the point (3,2).

We can use - Slope intercept form: y = mx + b to find the y-intercept first.

Using the given info:

m = 3

x = 3

y = 2

Thus,

2 = 3(3) + b

2 = 9 + b

2- 9 = 9- 9  + b

-7 = b

Hence, the y-intercept is -7.

As a result,

y = mx + b        >> plug it in

y = 3x -7

RevyBreeze

The solution of the inequality 3r ≤ 4r - 6 is  r ≥ 6.

In Mathematics, the relationship between two values that are not equal is defined by inequalities.

An inequality have the symbol <, >, ≤ and ≥. Hence, the inequality can be solved as follows:

3r ≤ 4r - 6

subtract 4r from both sides of the inequality,

3r ≤ 4r - 6

3r - 4r ≤ 4r - 4r - 6

3r - 4r ≤ - 6

- r ≤ -6

divide both sides of the inequality by -1

Therefore, the solution is r ≥ 6

learn more on inequality here: https://brainly.com/question/11784045

#SPJ1

The area of the rectangular parking lot is 929.03 square meters.

Use the formula for the area of a rectangle to calculate the area of the rectangular parking lot, which is given as:

Area = length × width

We know that the parking lot is 67.5 ft wide and 148 ft long, the area can be calculated as follows:

Area = 67.5 ft × 148 f

t= 9990 sq. ft

However, the question asks for the area in square meters, so we need to convert square feet to square meters. 1 square foot is equal to 0.092903 square meters, so we can use this conversion factor to convert square feet to square meters.

Area in square meters = Area in square feet × 0.092903

= 9990 sq. ft × 0.092903

= 929.03 sq meters

Therefore, the area is 929.03 square meters.

Learn more about rectangular https://brainly.com/question/32444543

#SPJ11

The equations of the lines are y = 3x - 5 and y = (1/2)x - 7

An equation is an expression that shows how numbers and variables are related to each other.

A linear function is in the form:

y = mx + b

Where m is the rate of change and b is the initial value

Two lines are parallel if they have the same slope

1) y = 3x + 6; (4, 7)

The parallel line would have a slope of 3 and pass through (4, 7), hence:

y - 7 = 3(x - 4)

y = 3x - 5

2) y = (1/2)x + 5; (4, -5)

The parallel line would have a slope of 1/2 and pass through (4, -5), hence:

y - (-5) = (1/2)(x - 4)

y = (1/2)x - 7

Find out more on equation at: https://brainly.com/question/25638875

#SPJ1

Answer:

A. The perimeter can also be represented by the expression 8x−2 because 4(4x−6) can be simplified to 8x−2.

18/99 simplified is 2/11 by dividing the numerator and denominator by 9.

A mathematical expression can be simplified by replacing it with an equivalent one that is easier (typically shorter), for example. In computer algebra, formulas of algebra are simplified. Boolean equation simplification is also known as logic optimization.

To simplify 18/99

We need to simplify the denominator and numerator by the greatest common factor.

In 18 and 99, 9 is the greatest common factor so, we can divide the numerator and denominator by 9 .

\(\frac{18}{99} = \frac{18/9}{99/9} \\\frac{18}{99} = \frac{2}{11}\)

Therefore 18/99 simplified is 2/11

Learn more about simplification here:

https://brainly.com/question/2804192

#SPJ1

Answer:

yeah

Step-by-step explanation:

Answer:

\( \: \: a) \: \: (49\pi - 98)ft {}^{2} \)

Answer:

0.266666666

Step-by-step explanation:

Answer:

.88

Step-by-step explanation:

one dekagram = .1 kilograms

the given expression is,

4x - 20 = 0

here 4 is the coefficient of variable x

4x = 20

x = 20/4

x = 5

thus, the value of x is 5

The estimated value of the explanatory variable is not statistically significant at the 5%-level if a. the t-statistic is greater than 2.5.

The t-test is a hypothesis testing technique used to decide whether the estimated coefficient of a linear regression model is statistically significant or not. The t-value is used to measure the size of the difference between the estimated coefficient and the hypothesized value. When the t-value exceeds a critical value, such as 2.5, the estimated value of the explanatory variable is not significant at the 5%-level. It implies that the null hypothesis, which assumes that the explanatory variable's coefficient is zero, cannot be rejected.

The p-value is a measure of the probability of obtaining a more extreme value of the test statistic than the observed value if the null hypothesis is true. A small p-value implies that the null hypothesis should be rejected. When the p-value is less than 0.05, it means that the estimated value of the explanatory variable is significant at the 5%-level.

The confidence interval is a range of values that is expected to include the true value of the population parameter with a specified level of confidence. A 95% confidence interval means that the true value of the population parameter lies within the range 95% of the time. The 95% confidence interval does not contain zero implies that the estimated value of the explanatory variable is statistically significant at the 5%-level since it suggests that the population parameter is different from zero at the 5%-level. Conversely, if the 95% confidence interval contains zero, the estimated value of the explanatory variable is not statistically significant at the 5%-level since it means that the population parameter is not different from zero at the 5%-level. Therefore, it is essential to examine the t-statistic, p-value, and confidence interval while conducting hypothesis testing to make an informed decision.

To leran more about hypothesis testing, refer:-

https://brainly.com/question/17099835

#SPJ11

Answer:

i think the answer is A but it might be D

Answer:

No

Step-by-step explanation:

(100-5) divided by 7 is about 12 and 100 - (5 divided by 7) is 99 and 2/7

The value of the variable 'x' is 48 degrees. Then the correct option is B.

It is a polygon with four sides. The total interior angle is 360 degrees. A parallelogram's opposite sides are parallel and equal.

In the figure, the side NP is parallel to the side MQ. Then the quadrilateral will be a parallelogram.

We know that the sum of the adjacent angles of the parallelogram will be 180 degrees.

x + 32 + 100 = 180

x = 180 - 132

x = 48

The value of the variable 'x' is 48 degrees. Then the correct option is B.

More about the parallelogram link is given below.

https://brainly.com/question/1563728

#SPJ1

The reason to choose problem B over A is simple -  it is more relatable to them.

Problem A involves dinosaurs, which may be more interesting to students than the abstract concept of creating an area with rope. Additionally, the use of feet as a unit of measurement in Problem A may be more familiar to students than inches.

Finding a number that represents the quantity of anything is called measurement. An accepted quantity that is used to represent a physical quantity is called a measurement unit. Let's learn about some of the standard units used to measure physical quantities.

The inch, foot, yard, and mile are the fundamental units of length and distance measurement in the English system. The rod, furlong, and chain are additional length units.

To know more about measurement units visit :

https://brainly.com/question/15402847?referrer=searchResults

#SPJ4

Answer:

C

Step-by-step explanation:

34 * 7= 238

34 feet per second, means that we have to mulitply 7 by 34.

Its really simple!

1 second: 34

7 seconds: ?

for example, if we needed 2 seconds we would muliplty by 2, 34 * 2 because we double it, the same way we would solve that, we would solve 34*7

\(Hey\) \(there!\)

\(The\) \(answer\) \(is\) \(238\)

\(We\) \(simply\) \(multiply\) \(34\) \(by\) \(7\):

\(34 * 7 = 238\)

\(Hope\) \(it\) \(helps!\) \(Have\) \(an\) \(amazing\) \(day!!!!!!\)

Answer written in standard form:

2x + 3y = -4

9514 1404 393

Answer:

  2x +3y = -4

Step-by-step explanation:

The slope of the line is given by the slope formula:

  m = (y2 -y1)/(x2 -x1

  m = (-4 -4)/(4 -(-8)) = -8/12 = -2/3

This can be used in the point-slope formula to find an equation of the line:

  y -y1 = m(x -x1)

  y -4 = -2/3(x -(-8)) . . . . substituting for (x1, y1) and m

Multiplying by 3 eliminated fractions:

  3(y -4) = -2(x +8)

  3y -12 = -2x -16

Adding 2x+12 to both sides gives the standard form equation:

  2x +3y = -4

The equation of the parabola shown in the 12b is y = x² - 4 if the vertex of the parabola is (0, -4).

It is defined as the graph of a quadratic function that has something bowl-shaped.

(x - h)² = 4a(y - k)

(h, k) is the vertex of the parabola:

a = √[(c-h)² + (d-k²]

(c, d) is the focus of the parabola:

It is given that:

The graph of a parabola is shown in the 12b question:

As we know, the standard form of the parabola is:

y = a(x - h)² + k

(h, k) is the vertex of the parabola:

From the graph: h = 0, k = -4

y = ax² - 4

Plug (2, 0) in the above equation:

0 = 4a - 4

a = 1

y = x² - 4

Thus, the equation of the parabola shown in the 12b is y = x² - 4 if the vertex of the parabola is (0, -4).

Learn more about the parabola here:

brainly.com/question/8708520

#SPJ1

In summary, it takes approximately 4.92 hours for 2 milligrams to be left in the body and the half-life of the drug is approximately 2.29 hours.

To determine when 2 milligrams is left in the body, we can substitute A = 2 into the equation given: 2 = 10(0.8)^t. Then, we can solve for t by dividing both sides by 10 and taking the natural logarithm of both sides to isolate t: t = ln(2/10) / ln(0.8). Using a calculator, we find that t is approximately 4.92 hours.

To find the half-life of the drug, we need to determine the time it takes for half of the initial dose (10 milligrams) to be eliminated from the body. This occurs when A = 5 milligrams. We can use the same equation and substitute A = 5: 5 = 10(0.8)^t. Then, we can solve for t using the same method as before: t = ln(0.5) / ln(0.8). Using a calculator, we find that t is approximately 2.29 hours.

In summary, it takes approximately 4.92 hours for 2 milligrams to be left in the body and the half-life of the drug is approximately 2.29 hours.

To know more about equation visit:

https://brainly.com/question/29657992

#SPJ11

There are 3080 ways 3 men and 2 women can be chosen if they are equally considered, using the multiplication principle of counting

The multiplication principle states that if there are m ways to perform one task and n ways to perform another task, then there are m x n ways to perform both tasks together.

To find the number of ways to choose 3 men from the 12 men, we can use the formula for combination, which is: ⁿCᵣ = n! / (r! (n-r)!).

where n is the total number of men and r is the number of men chosen

so, the number of ways to choose 3 men from the 12 men = ¹²C₃ = 1.

Similarly, we evaluate the number of ways to choose 2 women from the 8 women

as = ⁸C₂ = 14

Now, using the multiplication principle, we can find the total number of ways 3 men and 2 women be chosen if they are equally considered.

220 x 14 = 3080

Therefore, there are 3080 ways 3 men and 2 women can be chosen if they are equally considered, using the multiplication principle of counting

Know more about multiplication principle here:https://brainly.com/question/10275154

#SPJ1

As the project progresses, the actual finish times (AFs) of completed activities play a crucial role in determining various aspects of the project schedule.

The AFs are used to calculate the earliest start and earliest finish times for the remaining activities in the network diagram. These calculations are based on the dependencies between activities and the actual durations of completed activities.

By considering the AFs, the project team can determine the earliest possible start and finish times for the remaining activities, taking into account the sequence of activities and any imposed constraints. This information helps in managing the project schedule and identifying any potential delays or critical paths.

Know more about actual finish times here:

https://brainly.com/question/31925763

#SPJ11

Answer:

Step-by-step explanation:

Volume of the prism is the product of its base area and height

Find base area:

Area of the trapezoid:

Substitute given values and solve for h:

Find area of base

Now

Height of trapezoid base be x

Answer: Choice D.  (0,-2)

Note how this point is in the blue region, but it is not in the red region. The solution must satisfy all of the shaded regions of the system of inequalities. The red and blue regions overlap to form the darker shaded region on the right side (the somewhat grayish purple triangular region). Points in this darkest shaded region are solutions to the system. The points (5,2), (0,3) and (4,0) are all located in this region so they are solutions.

Answer:

3/2 or 1.5

Step-by-step explanation:

Multiply 3/5 by 2 to make the denominator of both fractions equal.

2 x 3/5 = 6/10

Now that the denominators are equal, add the two fractions together

6/10 + 9/10 = 15/10 = 3/2 or 1.5

Answer:

1 1/2

Step-by-step explanation:

3/5 + 9/10

We need a common denominator of 10

3/5 * 2/2   + 9/10

6/10 + 9/10

15/10

10/10   + 5/10

1 + 5/10

1 + 1/2

1 1/2