Which expression is equivalent to 7m+5.5(2+m)
?

There are 22 athletes who like both running and walking.

Let R be the set of athletes who like to run, and

let W be the set of athletes who like to walk.

Then we want to find the size of the intersection R ∩ W.

We know that there are 31 athletes who like to run,

65 athletes who like to walk, and

22 athletes who like neither.

Therefore, the total number of athletes who like to run or walk (or both) is:

31 + 65 - 22 = 74

This number includes athletes who like both running and walking, as well as athletes who like only running or only walking.

Now we can use the formula:

|A ∪ B| = |A| + |B| - |A ∩ B|

So  |R ∪ W| = |R| + |W| - |R ∩ W|

Substituting the known values, we get:

74 = 31 + 65 - |R ∩ W|

Simplifying, we get:

|R ∩ W| = 22

Therefore, there are 22 athletes who like both running and walking.

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Answer:

4/3x + y = -14/3

Step-by-step explanation:

Currently, the line we're given is in standard form, whose general form is

[tex]Ax+By=C[/tex]

We will need to find the slope of this line, since the slopes of perpendicular lines are negative reciprocals.  This is shown by the formula:

[tex]m_{2}=-1/m_{1}[/tex], where m2 is the slope of the line we're trying to find and m1 is the slope of the line we're given.

Furthermore, we can find the slope of the line by converting the line from standard form to slope-intercept form, whose general form is

[tex]y=mx+b[/tex], where m is the slope and b is the y intercept:

[tex]3/4x-y=7/2\\-y=-3/4x+7/2\\y=3/4x-7/2[/tex]

Now, if we allow 3/4 to be m2 in the formula I provided, we can find the slope of the other line:

[tex]m_{2}=-1/(3/4)\\ m_{2}=-4/3[/tex]

Now, that we've found the slope of the new line, we can find the y-intercept by plugging in the slope and the point (-2, -2) for x and y in the slope-intercept form:

[tex]-2=-4/3(-2)+b\\-2=8/3+b\\-14/3=b[/tex]

Thus, the equation of the line passing through (-2, -2) and perpendicular to 3/4x - y = 7/2 is y = -4/3x - 14/3

In order to clear up confusion, we can convert this line to standard form so that it truly resembles the other line by simply isolating -14/3 (b in the slope-intercept form):

[tex]y=-4/3x-14/3\\4/3x+y=-14/3[/tex]

The parameters for the linear function in this problem are given as follows:

1. C is the total cost.

2. g is the number of guests.

3. Each guest costs $55.

4. The cost to rent the venue is of $650.

5. 80 guests cost $5,050.

6. 105 guests cost $6,425.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

The function for this problem is given as follows:

C = 55g + 650.

Hence:

The costs are given as follows:

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An exponential function showing the relationship between y and t is y = 2500(1.11ˣ)

To write an exponential function for this situation, we can start with the initial number of cells (2500) and then multiply by 1.11 for each hour that has passed. We can use the variable t to represent the number of hours since the start of the study, and the variable y to represent the number of bacteria cells. Then, our exponential function is:

y = 2500(1.11ˣ)

This function tells us that the number of bacteria cells (y) is equal to the initial number of cells (2500) multiplied by 1.11 raised to the power of the number of hours since the start of the study (x).

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The length of the interior diagonal of the box is .

Since, We know that;

In right triangles, the sum of the squares of the two legs a and b is equal to the square of the hypotenuse .

a² + b² = c²

Here, It is given that, a box has a base of 3 inches by 4 inches and a height of 12 inches.

We need to find the length of the interior diagonal of the box.

Now, we will find the length of the interior diagonal of the box by using the Pythagorean theorem.

So,

⇒ √3² + 4² + 12²

⇒ √9 + 16 + 144

⇒ √169

⇒ 13

Hence, 13 are the length of the interior diagonal of the box.

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A Euler Circuit in the graph is ADGFACFIECBEHDBA.

When we describe an Euler circuit, we are describing a path in a diagram known as a graph that starts and ends at the same vertex.

While you can visit a vertex a number of time, you can only visits every edge of the graph once. This means that you cannot walk the path to a vertex more than once.

For the graph in the picture, ADGFACFIECBEHDBA is the Euler circuit. You can see that vertex like A was repeated three time, E, C and F, were repeated twice.

Can this graph be called Eulerian? No, because it does not fulfill the condition.

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Answer:  The domain of the function f(x) = log(-5x + 3) is the set of all real numbers x that make the argument of the logarithmic function positive.

Since the argument of the logarithmic function is -5x + 3, we must have:

-5x + 3 > 0

Solving for x, we get:

-5x > -3

x < 3/5

Therefore, the domain of the function f(x) = log(-5x + 3) is all real numbers x such that x < 3/5.

Step-by-step explanation: Hope this helps :D

The three men will visit the barber shop on the same day again in 72 days.

Three men visit a barber shop on their schedule, jack visits every 18 days, bryce visits every 8 days, and jadon visits every 9 days

We have to find the how many more days before they will visit on the same day again

We want to find the least common multiple (LCM) of 18, 8, and 9.

First, we can find the prime factorization of each number:

18 = 2 × 3 × 3

8 = 2 × 2 × 2

9 = 3 × 3

Next, we can take the highest power of each prime factor that appears in any of the numbers:

2³ × 3² = 72

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a. The distribution of X bar is  x bar - N(1022, 43.45²).

b. The distribution of x bar is x bar - N(1022, 43.45²).

c.  The probability that one randomly selected auto insurance is more than $990 is 0.1131.

d. a simple random sample of 39 auto insurance policies, the probability that the average cost is more than $990 is 0.887

a. The dispersion of X bar is ordinary with a cruel of 1022 dollars and a standard deviation of 272/√(39) dollars. In this way, X bar - N(1022, 43.45²).

b. The conveyance of x bar is additionally ordinary with the same cruel and standard deviation, so x bar - N(1022, 43.45²).

c. To discover the likelihood that one arbitrarily chosen auto protection is more than $990, able to utilize the z-score equation:

z = (990 - 1022) / 272/√(39) = -1.21. Looking up the comparing region beneath the standard typical dissemination bend, we discover a likelihood of 0.1131.

d. To discover the likelihood that the normally taken toll of a simple random test of 39 auto protections approaches is more than $990, we got to discover the z-score for this test cruel:

z = (990 - 1022) / 272/√(39) = -1.21. Employing a standard typical dispersion table, we discover that the likelihood of a z-score less than -1.21 is 0.1131. Hence, the likelihood of a test cruel more prominent than $990 is 1 - 0.1131 = 0.8869, or 0.887 (adjusted to 3 decimal places). 

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The formula for the volume of a circle is V = (4/3)πr³, where r is the radius obtained by dividing the diameter by 2.

First, it's important to understand what the diameter of a circle represents. The diameter is the distance across the circle, passing through the center. In contrast, the radius is the distance from the center of the circle to any point on the edge.

Now, let's consider the statements given:

Substitute the diameter value for r in the formula and calculate as usual.

This statement is incorrect because the formula for the volume of a circle involves the radius, not the diameter. If we substitute the diameter for the radius, we would end up with the wrong answer.

Divide the diameter by 2 to find the radius, and then use the volume formula as usual.

This statement is correct. Since the radius is half the diameter, dividing the diameter by 2 will give us the radius. We can then use the formula for the volume of a circle, which is V = (4/3)πr³, where r is the radius.

Multiply the diameter by 2 to find the radius, and then use the volume formula as usual.

This statement is incorrect. If we multiply the diameter by 2, we would end up with the diameter, not the radius. Again, we need to use the radius in the formula for the volume of a circle.

To summarize, when given the diameter of a circle and asked to find its volume, we should divide the diameter by 2 to find the radius and then use the volume formula as usual.

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Answer:

Step-by-step explanation:

A=1/2 a p                 a is apothem;  p is perimeter of base

p=22*5 =110

a you need to find by making a triangle with the radius and finding the angle of the right triangle

All external angles of any polygon =360

divide by 5 and then 2 to find triangle

=54

Use tan 54 = a/11

a=15.14

A= 1/2 *15.14 *54

408.8

The approximate shortest distance between the treasure chest and driftwood is 3.2 yards

The correct answer is an option (C)

From the attached figure of the coordinate plane,

the coordinates of the palm tree = (1, 2),

the coordinates of the  treasure chest = (5, 8)

and the coordinates of the driftwood = (8, 7)

We know that the distance formula between two points (x₁, y₁) and (x₂, y₂) is:

d = √[(x₂ - x₁)² + (y₂ - y₁)²]

We need to find the distance between the treasure chest and driftwood.

Let (x₁, y₁) = (5, 8)

and (x₂, y₂) = (8, 7)

Using distance formula, the approximate shortest distance between the treasure chest and driftwood would be,

d = √[(x₂ - x₁)² + (y₂ - y₁)²]

d = √[(7 - 8 )² + (8 - 5)²]

d = √[(-1)² + (3)²]

d = √[1 + 9]

d = √(10)

d = 3.1622

d ≈ 3.2 yards

This is the required distance between the treasure chest and the driftwood.

Therefore, the correct answer is an option (C)

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Find the complete question below.

Answer: Jonick Company's margin of safety as a percentage of current sales is 26.05%.

Step-by-step explanation:  To find the margin of safety as a percentage of current sales, we need to first calculate the margin of safety, which is the amount of sales above the break-even point:

Margin of safety = Actual sales - Break-even point

We know that actual sales are $740,000 and the break-even point is $547,600, so:

Margin of safety = $740,000 - $547,600

Margin of safety = $192,400

Now that we know the margin of safety, we can calculate it as a percentage of current sales:

Margin of safety % = (Margin of safety / Actual sales) x 100

Plugging in the numbers, we get:

Margin of safety % = ($192,400 / $740,000) x 100

Margin of safety % = 26.05%

Therefore, Jonick Company's margin of safety as a percentage of current sales is 26.05%. This means that sales can drop by 26.05% before the company starts to incur losses.

Note that the probability that a student chosen at random will play an instrument besides the guitar is 29/45.

To derive the probability, that a  chosen at random will play an instrument other than guitar , we have to first find the sum total of all students who can play an instrument that is not a guitar.

From the table, we can se that this is:

3 + 10 + 5 = 18 on the 7th grade

while the 8th grade we have 3 + 6 + 2 = 11

18 + 11 = 29

So that total students in the middle school is

12 + 3  + 10 +5 + 4 + 3 + 6 + 2 =   45

hence the probability that a student chosen at random will play an instrument other than guitar as a fraction in simplest form is 29/45

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The simplified expression of log_3+log_5+log_2 32 is 5log_3(20) by properties of logarithms

Using the logarithmic identity that states log (a × b) = log a + log b

we can simplify the expression as follows:

log_3+log_5+log_2 32 = log_3(2⁵) + log_5(2⁵) + log_2(2⁵)

= 5log_3(2) + 5log_5(2) + 5log_2(2)

= 5(log_3(2) + log_5(2) + log_2(2))

using the property that log_b(a) + log_b(c) = log_b(a × c)

= 5(log_3(2 × 5× 2))

= 5(log_3(20))

Therefore, the simplified expression is 5log_3(20).

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Shortage of investment capital would not be considered a barrier to economic development.

All factors are considered for economic development except the following given .

Since Barriers to economic development are large population size, savings gap, large and inadequate capital accumulation, corruption, politics and poor governance, and the deficit in the foreign trade of goods and services.

Other factors lack of technological developments,  climatic and weather disturbances, a decline of trade and commerce is considered to be one of the biggest drawbacks influencing this growth.

Institutional barriers like education, skill development, innovation, and access to equal opportunities.

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The blood platelet count is an illustration of normal distribution,

Approximately 95% of the data lies within 2 standard deviations of the mean.

There are approximately 99.7% of women with platelet count between 65.2 and 431.8.

Given parameters are:

μ = 248.5

σ = 61.1

(a) The percentage within 2 standard deviation of mean or between 126.3 and 370.7,

Start by calculating the z-score, when x = 126.3 and x = 370.7

Z = x-μ / σ

Therefore,

Z = 126.3-248.5/61.1

Z = -2

Also,

Z = 370.7-248.5/61.1

Z = 2

The empirical rule states that:

Approximately 95% of the data lies within 2 standard deviations of the mean.

Hence, there are approximately 95% of women with platelet count within 2 standard deviations of the mean.

(b) The percentage with platelet count between 65.2 and 431.8

Start by calculating the z-score, when x = 65.2 and x = 431.8

Z = 65.2-248.5/61.1

Z = -3

And,

Z = 431.8-248.5/61.1

Z = 3

The empirical rule states that:

Approximately 99.7% of the data lies within 3 standard deviations of the mean.

Hence, there are approximately 99.7% of women with platelet count between 65.2 and 431.8.

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The arc length SR is 6.98ft

Arc length is the distance between two points along a section of a curve. An arc is a cut out section of a circumference of a circle.

The arc angle = sector angle in the diagram

The length of an arc is expressed as;

l = tetha/360 × 2πr

where r is the radius and tetha is the angle between the two radii.

l = 100/360 × 2 × 4 × 3.14

l = 314 × 8/360

l = 2512/360

l = 6.98( nearest hundredth)

therefore the length of the arc is 6.98 ft

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Answer:

The rational root theorem, as its name suggests, is used to find the rational solutions of a polynomial equation

Step-by-step explanation:

There are 3/20 pink tulips

A flower garden is composed of 1/2 tulips

3/10 of this amount are the pink tulips

Therefore the number of pink tulips can be calculated as follows

= 1/2 × 3/10

= 3/20

Hence 3/20 of the tulips in the garden are pink

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The volume of the cylinder is 623.17 cubic inches.

We have,

The volume of a cone is given by the formula V = (1/3)πr²h,

where r is the radius of the base and h is the height.

The volume of a cylinder is given by the formula V = πr²h,

where r is the radius of the base and h is the height.

Since the cone and cylinder have the same radius and height, we can set the equations for their volumes equal to each other:

(1/3)πr²h = πr²h

We can simplify this equation by multiplying both sides by 3:

πr²h = 3(1/3)πr²h

Simplifying further, we get:

πr²h = πr²(3h/3)

πr²h = πr²(3/1)

πr²h = 3πr²

Canceling the πr² from both sides, we get:

h = 3

We now know that the height of the cone and cylinder is 3.

We can use the given volume of the cone to solve for the radius:

V = (1/3)πr²h

162 = (1/3)πr²(3)

162 = πr²

r² = 162/π

r ≈ 6.4615

Now that we know the radius and height of the cylinder, we can use the formula for the volume of a cylinder to find its volume:

V = πr²h

V = π(6.4615)²(3)

V ≈ 623.17 cubic inches

Therefore,

The volume of the cylinder is 623.17 cubic inches.

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Answer:y=1/4x+1/2

Step-by-step explanation:

4y=x+2

y=1/4x+1/2

Since first four points in this table have been plotted on the scatter graph, the points that shows where the last point should be plotted is C.

In Mathematics and Geometry, an ordered pair is sometimes referred to as a coordinate and it can be defined as a pair of two (2) elements or data points that are commonly written in a fixed order within parentheses as (x, y), which represents the x-coordinate (abscissa) and the y-coordinate (ordinate) on the coordinate plane of any graph.

Based on the cartesian coordinate (grid) above, the coordinate points and quadrants should be identified as follows;

Point C ⇔  (130, 180) → quadrant I.

In conclusion, we can logically deduce that the each of the intervals on both the x-axis and y-axis is equal to 10 units.

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Answer:

The slope of a line can be calculated using the following formula:

```

m = (y2 - y1) / (x2 - x1)

```

where `m` is the slope, `y2` and `y1` are the y-coordinates of the two points, and `x2` and `x1` are the x-coordinates of the two points.

In this case, we have the following points:

```

(x1, y1) = (-3, -1)

(x2, y2) = (3, -10)

```

Plugging these values into the formula, we get the following:

```

m = (-10 - (-1)) / (3 - (-3)) = -9 / 6 = -3/2

```

Therefore, the slope of the line is **-3/2**. So the answer is (c).

Step-by-step explanation:

It can hold 200 unit³ of popcorn.

The amount of paper used is 150 unit².

We have,

b = 8 unit

h = 5 unit

l = 10 unit

So, Volume of Triangular prism

= 1/2 x b x h x l

= 1/2 x 8 x 5 x 10

= 40 x 5

= 200 unit³

and, the amount of paper used

= 6 x 5 + 8 x 5 + 10 x 5 + 1/2 x 6 x 10

= 30 + 40 + 50 x 30

= 150 unit²

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