pls somebody help me with this question​

Pls Somebody Help Me With This Question

Answers

Answer 1
The answer would be B

Related Questions

square root 2x-7 = 1

Answers

Answer:

4

Step-by-step explanation:

To solve for x in the equation:

√(2x - 7) = 1

We can start by isolating the square root by squaring both sides of the equation:

(√(2x - 7))^2 = 1^2

2x - 7 = 1

Next, we can isolate the variable by adding 7 to both sides of the equation:

2x = 8

Finally, we can solve for x by dividing both sides by 2:

x = 4

Therefore, the solution to the equation √(2x - 7) = 1 is x = 4.

The solution is x = 4

The subscription rates in the United States and Canada for a civil engineering magazine are 1 year, $7.50;2 years, $12.00;3 years, $16.00; and 5 years, $22.00. Compute the rate of return on the investment for purchasers of: a) 2-year subscriptions b) 3-year subscriptions c) 5-year subscriptions.

Answers

a) 2-year subscriptions is approximately 20%.

b) 3-year subscriptions is approximately 29.56%.

c) 5-year subscriptions is approximately 41.33%.

To compute the rate of return on the investment for purchasers of different subscription lengths, we need to calculate the average annual cost of each subscription option.

a) 2-year subscriptions:

The cost of a 2-year subscription is $12.00. To find the average annual cost, we divide the total cost by the number of years:

Average annual cost = $12.00 / 2 = $6.00

b) 3-year subscriptions:

The cost of a 3-year subscription is $16.00. To find the average annual cost, we divide the total cost by the number of years:

Average annual cost = $16.00 / 3 = $5.33 (rounded to two decimal places)

c) 5-year subscriptions:

The cost of a 5-year subscription is $22.00. To find the average annual cost, we divide the total cost by the number of years:

Average annual cost = $22.00 / 5 = $4.40

Now, to calculate the rate of return on the investment, we need to compare the average annual cost to the regular 1-year subscription rate of $7.50.

a) For 2-year subscriptions:

Rate of return = (1 - Average annual cost / 1-year subscription rate) * 100%

Rate of return = (1 - $6.00 / $7.50) * 100% ≈ 20%

b) For 3-year subscriptions:

Rate of return = (1 - Average annual cost / 1-year subscription rate) * 100%

Rate of return = (1 - $5.33 / $7.50) * 100% ≈ 29.56%

c) For 5-year subscriptions:

Rate of return = (1 - Average annual cost / 1-year subscription rate) * 100%

Rate of return = (1 - $4.40 / $7.50) * 100% ≈ 41.33%

Therefore, the rate of return on the investment for purchasers of:

a) 2-year subscriptions is approximately 20%.

b) 3-year subscriptions is approximately 29.56%.

c) 5-year subscriptions is approximately 41.33%.

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Calculate and express your answer in decimal form: 3/4⋅200 *

Answers

Answer:

150.00

Step-by-step explanation:

PLEASE HELP ASAP THIS IS TIMED. If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)? On a coordinate plane, a straight line with a negative slope crosses the y-axis at (0, 5) and crosses the x-axis at (1, 0). On a coordinate plane, a parabola opens down. It goes through (negative 2, negative 4), has a vertex at (0, 5), and goes through (2, negative 2) On a coordinate plane, a parabola opens up. It goes through (negative 3, 7), has a vertex at (negative 1, 2), and goes through (0, 5). On a coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5)

PLEASE HELP ASAP THIS IS TIMED. If f(x) = x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph
PLEASE HELP ASAP THIS IS TIMED. If f(x) = x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph
PLEASE HELP ASAP THIS IS TIMED. If f(x) = x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph
PLEASE HELP ASAP THIS IS TIMED. If f(x) = x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph

Answers

Answer:

4th Graph

Step-by-step explanation:

Step 1: Find (f + g)(x)

-x² + 3x + 5 + x² + 2x

3x + 5 + 2x

5x + 5

Step 2: Graph

PLEASE HELP ASAP THIS IS TIMED. If f(x) = x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph

Answer:

option d on edge trash

Step-by-step explanation:

Find the 12th term of the arithmetic sequence x−4, 3x−11, 5x-18, ...

Answers

Answer:

Step-by-step explanation:

x -4  , 3x-11 , 5x - 18 ,.......

first term = a = x -4

Common difference (d) = second term  - first term

                                =  3x -11 - [ x - 4]

                                = 3x - 11 - x + 4

                                = 3x - x - 11 + 4

                                 = 2x - 7

nth term = a + (n-1)*d

12th term = x - 4 + 11*(2x - 7)

               = x - 4 + 11*2x  - 7 *11

                = x - 4 + 22x - 77

                =x + 22x - 4 - 77

                = 23x - 81

Which one of the following statistics can be used to make decisions about retaining or discarding an item based on how well the item discriminates between high- and low-scoring test takers? Item-total correlation p-value level Item bias index

Answers

The statistic known as "p-value level" can be used to determine whether to keep or remove a question depending on how well it distinguishes between test takers with high and low scores.

Define the term p-value level statistics?

A statistical measurement known as a p-value is employed to check a hypothesis' validity against actual data.

A p-value calculates the likelihood of getting the outcomes that were observed, presuming that null hypothesis is correct. The significance levels of the difference that was found increases with decreasing p-value.The probability value, or p value, indicates the likelihood that your data might be true under null hypothesis. This is accomplished by estimating the probability of given test statistic, that is the figure obtained from a statistical analysis of your data.

Thus, the statistic known as "p-value level" can be used to determine whether to keep or remove a question depending on how well it distinguishes between test takers with high and low scores.

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1.1. How many m³ = are there in 3( mile )³
1.2. How many gal/min correspond to 5ft³ /s. 1.3. Convert the following: 9.50 cm to nm/sec² (5)

Answers

Using the conversion factors, we find that 3 cubic miles is approximately equal to 1.2504543 × 10^10 cubic meters. 5 cubic feet per second is equal to 2244.156 gallons per minute. 9.50 centimeters is equal to 9.50 * 10^7 nanometers per second squared.

1.1. One mile is equal to 1609.34 meters. Since we're dealing with cubic units, we cube the conversion factor.

1 mile = 1609.34 meters

1 mile³ = (1609.34 meters)³ = 4.168181 × 10^9 cubic meters

Therefore, 3 cubic miles is equal to 3 * 4.168181 × 10^9 cubic meters, which is approximately 1.2504543 × 10^10 cubic meters.

1.2. To convert from cubic feet per second (ft³/s) to gallons per minute (gal/min), we use the appropriate conversion factors.

Here are the conversion factors:

1 cubic foot = 7.48052 gallons

1 minute = 60 seconds

So, we set up the conversion as follows:

5 ft³/s * 7.48052 gal/ft³ * 60 s/min = 2244.156 gal/min

Therefore, 5 cubic feet per second is equal to 2244.156 gallons per minute.

1.3. To convert centimeters (cm) to nanometers per second squared (nm/sec²), we use the appropriate conversion factors. Here are the conversion factors:

1 centimeter = 10^7 nanometers

1 second = 1 second

So, we set up the conversion as follows:

9.50 cm * (10^7 nm/cm) / (1 sec)² = 9.50 * 10^7 nm/sec²

Therefore, 9.50 centimeters is equal to 9.50 * 10^7 nanometers per second squared.

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helpppppp!!!!!!!!!!!!!!

helpppppp!!!!!!!!!!!!!!

Answers

Answer:

Amanda spent $150.31. When 8 is substituted for g and 3 is substituted for t, the expression simplifies to 132.4 + 17.91.

Step-by-step explanation:

g = # of gallons of paint for $16.55 per gallon

t = # of pints of paint thinner for $5.97 per pint

Amanda bought 8 gallons of paint and 3 pints of paint thinner. To find out how much money she spent, just substitute 8 for g and 3 for t in the expression you selected.

16.55(8) + 5.97(3) = $150.31

Hope this helps!

Answer:

A

Step-by-step explanation:

bc everything lines up

What is the answer to 8)555 with the remainder and this is division.

Answers

Answer:

69 <-- quotient

 ---

Step-by-step explanation:

8)555

 48

 --

  75

  72

  --

   3 <-- remainder

40 m divided by 2
Can YOU solve that?
ha! I know the answer

Answers

Answer:

20m

Step-by-step explanation:

40m/2

20m

because 40/2=20

Justin bought 3 CDs that were each the same price. Including sales tax, he paid a total of $49.50 Each CD had a tax of $1.10 What was the price of each CD before tax?

Answers

Answer:

We know he bought 3 CDs and he paid 49.50 dollars, which the tax included. Now, we can calculate how much did he pay for each CD by dividing the total cost (49.50) by the number of CDs (3):

49.50/3 = 16.50

Now, we know each CD costs 16.50 with tax included so, if it has a tax of1.10 dollars, we only need to substract the price (16.50) and the tax (1.10)

16.50 - 1.10 = 15.40

Without tax, ech CD costs 15.4 dollars ($15.4)

Answer:

The price before sale tax is  $15.40

Step-by-step explanation:

$1.10 × 3 = $3.30

$49.50 - $3.30 = $46.20

$46.20 ÷ 3 = $15.40

the project charter must state the key metric to be improved. the key metric is the _____ in y=f(x) for the project

Answers

The key metric to be improved in a project can vary depending on the nature and objectives of the project. However, in the context of the equation y = f(x), the key metric would typically be represented by the variable "y."

The specific definition of "y" will depend on the project and its goals. It could represent a wide range of factors, such as cost savings, customer satisfaction, productivity, revenue growth, quality improvement, or any other relevant performance indicator that the project aims to enhance.

When creating a project charter, it is essential to clearly define and specify the key metric (i.e., "y") that will be targeted for improvement throughout the project's duration. This helps align the project team's efforts and provides a clear focus on the desired outcome.

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Find the HCF of ; 3.36,60,84​

Answers

Answer:

3

Step-by-step explanation:

im guessing 3.36 is a typo and it should be 3,36,60,84

so in that case it would be 3

Answer:

3

Step-by-step explanation:

ok you understand hope

Marcus is going to buy a round swimming pool for his backyard that measures 15 feet across. How much of his backyard would the swimming pool cover, in square feet?

Answers

Answer:

176.7146 in square feet

give brainlyest

Step-by-step explanation:

The word "and" in probability implies that we use the ____ rule.
A. Subtraction
B. Division
C. Addition
D. Multiplication

Answers

The word "and" in probability implies that we use the Multiplication rule.

The correct option is Option D.

What is the Multiplication Rule of Probability?

The likelihood of both events A and B occurring, in accordance with the probability multiplication rule, is equal to the product of the probability of B occurring and the conditional probability of event A occurring given that event B occurs.

The relationship between two events is explained by the probability multiplication rule.

Set A∩B represents the events in which both events A and B have occurred for two events A and B related to a sample space S. Consequently, (A∩B) indicates that occurrences A and B happened at the same time. You can write the event A∩B as AB. Using the characteristics of conditional probability, the likelihood of event AB is calculated.

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Verify which of the following are identities.

Verify which of the following are identities.

Answers

Answer:

d. only the first equation is an identity

Step-by-step explanation:

You toss a fair coin until you have at least one head and at least one tail. What is the expected number of tosses

Answers

The expected number of tosses 4
50% of heads x 50% chance of tails = 1/4
1/4 chance is 4 tosses

What was the difference between the winning butterfly time and the winning backstroke time?

What was the difference between the winning butterfly time and the winning backstroke time?

Answers

Answer:

It has more time and the other takes less time

Step-by-step explanation:

if you subtract them it should be 4.66 seconds of difference hope this helps :)  

In ΔEFG, g = 34 inches, e = 72 inches and ∠F=21°. Find the area of ΔEFG, to the nearest square inch.

Answers

The area of triangle EFG, to the nearest square inch, is approximately 1061 square inches.

To find the area of triangle EFG, we can use the formula:

\(Area = (1/2) \times base \times height\)

In this case, the base of the triangle is FG, and the height is the perpendicular distance from vertex E to side FG.

First, let's find the length of FG. We can use the law of cosines:

FG² = EF² + EG² - 2 * EF * EG * cos(∠F)

EF = 72 inches

EG = 34 inches

∠F = 21°

Plugging these values into the equation:

FG² = 72² + 34² - 2 * 72 * 34 * cos(21°)

Solving for FG, we get:

FG ≈ 83.02 inches

Next, we need to find the height. We can use the formula:

height = \(EF \times sin( \angle F)\)

Plugging in the values:

height = 72 * sin(21°)

height ≈ 25.52 inches

Now we can calculate the area:

\(Area = (1/2) \times FG \times height\\Area = (1/2)\times 83.02 \times 25.52\)

Area ≈ 1060.78 square inches

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PLEASEE GUYS HELP ME WITH THIS QUESTION!!!!

PLEASEE GUYS HELP ME WITH THIS QUESTION!!!!

Answers

Answer:

y= = -2

Step-by-step explanation:

In analytic geometry, an asymptote of a curve is a line such that the distance between the curve and the line approaches zero as one or both of the x or y coordinates tends to infinity.

Shape a is enlarged to give shape b a) what is the scale factor of the enlargement? b) mark with a cross the centre of enlargement

Answers

The scale factor of the enlargement will be 3. Then the center of enlargement is marked in the diagram.

What is dilation?

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered.

Shape A is enlarged to give shape B.

Then the scale factor of the enlargement will be

⇒ 3 / 1

Then the center of enlargement is marked in the diagram.

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Shape a is enlarged to give shape b a) what is the scale factor of the enlargement? b) mark with a cross

əz 22. Suppose z= z(x, y) is implicitly determined by ln(x+y+z) = x+2y+3z. Then dy (z.y.a)=(-1,5,-3)

Answers

the derivative dy/dx is equal to 1/3 based on the given information. It's important to note that this calculation assumes that the partial derivatives (∂F/∂x) and (∂F/∂y) are not zero at the given point (z.y.a).

n the given problem, we have an implicit equation ln(x+y+z) = x+2y+3z that defines z as a function of x and y. We are given the values dy = (-1, 5, -3).

To find the derivative dy/dx, we can use the total derivative formula and apply it to the implicit equation. The total derivative is given by dy/dx = - (∂F/∂x)/(∂F/∂y), where F = ln(x+y+z) - x - 2y - 3z.

Differentiating F partially with respect to x and y, we have (∂F/∂x) = 1/(x+y+z) - 1 and (∂F/∂y) = 1/(x+y+z) - 2.

Plugging in the given values of dy = (-1, 5, -3), we can calculate dy/dx = - (∂F/∂x)/(∂F/∂y) = -(-1)/(5-2) = 1/3.

Therefore, the derivative dy/dx is equal to 1/3 based on the given information. It's important to note that this calculation assumes that the partial derivatives (∂F/∂x) and (∂F/∂y) are not zero at the given point (z.y.a).

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What is the exponential form of log3 2187 = 7?

Answers

Answer:

2187 = \(3^{7}\)

Step-by-step explanation:

Using the rule of logarithms

\(log_{b}\) x = n , then x = \(b^{n}\) , then

\(log_{3}\) 2187 = 7

2187 = \(3^{7}\)

Answer:

3 ^7 = 2187

Step-by-step explanation:

log3 2187 = 7

log a (b) = c

a^c = b

3 ^7 = 2187

our basketball team has 12 members, each of whom can play any position. in how many ways can we choose a starting lineup consisting of a center, a power forward, a shooting forward, a point guard, and a shooting guard?

Answers

By permutation, in 95040  ways we can choose a starting lineup consisting of a center, a power forward, a shooting forward, a point guard, and a shooting guard

What does permutation mean?

A permutation is a set up of things in a certain sequence. Here, the members of sets or their constituent parts are sorted in a linear or sequential manner.

How is a permutation determined?

Take the number of possibilities for each event and multiply it by itself X times, where X is the total number of events in the sequence, to find the number of permutations. For instance, four-character PINs have a total of 10 possible combinations because each digit can vary from 0 to 9.

\(12^P_{5} = \frac{12!}{(12-5)!} =\frac{12!}{5!} = 12 X 11 X 10 X 9 X 8 = 95040\)

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When constructing a perpendicular bisector why must the compass opening be greater than 1/2.

Answers

It is critical to open a compass with over half the way in order for the arcs formed to meet for perpendicular bisector.

What is perpendicular bisector?

A perpendicular bisector would be a line that cuts a line segment in half and forms a 90-degree angle at the intersection point. In other words, a perpendicular bisector separates a line segment now at midpoint, forming a 90-degree angle.

Now, consider an example;

When you wish to build a perpendicular line on a line segment, like line AB, you do the following;

Set the compass on a radius more than half the length of the line AB.Using A as your center, draw an arc above and below line AB.With the same radius and B as our center, draw additional arcs on top or below line AB to join a first arcs on the both side of the line.Join the two arc intersections to cut line AB at M.

A line AB appears to be bisected perpendicularly as a result. The arcs would not have met if the compass is opened less than half way down line AB.

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evaluate and solve for the variable 70 = 7m

Answers

Answer:

10= m

Step-by-step explanation:

70 = 7m

70/7 = 7m/7

10= m

hope this helps! :)

Answer: 10m

Step-by-step explanation: m=10

what is the domain of validity for csc 0=1/sin 0
a. all real numbers
b. all real numbers except odd multiples of pi/2
c. all real numbers except even multiples of pi/2
d. all real numbers except multiples of pi

Answers

The correct answer is (b) all real numbers except odd multiples of π/2. The domain of validity for cscθ (cosecant) is restricted because cosecant is undefined when the sine of an angle is zero.

In the trigonometric identity cscθ = 1/sinθ, the denominator sinθ becomes zero at odd multiples of π/2 (such as π/2, 3π/2, 5π/2, etc.), resulting in a division by zero error. Therefore, the cosecant function is not defined for these values of θ.

For all other real numbers θ, the sine function is non-zero and well-defined, allowing us to calculate the reciprocal of the sine and determine the value of the cosecant. Hence, the domain of validity for cscθ is all real numbers except odd multiples of π/2, as stated in option (b).

It's important to note that in trigonometry, the domain of validity is determined by avoiding any values that would lead to undefined expressions or division by zero errors.

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Final answer:

The domain of validity for csc θ = 1/sin θ is all real numbers except multiples of π, because at these points the sine function equals zero, and division by zero is undefined.

Explanation:

In mathematics, the cosecant function (csc), is defined as the reciprocal of the sine function, or 1/sinθ. The domain of a function are all the possible input values that will yield real numbers (output). For the csc function, its domain includes all real numbers except where the denominator is zero because division by zero is undefined.

In the unit circle context, sine equals zero at 0, π, 2π, ..., and the negative counterparts. Basically, these are the multiples of π. Thus, for the csc function, the domain is all real numbers except multiples of π, which matches option d in your choices.

The domain of validity for csc θ = 1/sin θ is all real numbers except multiples of π.

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the kutta-joukowski theorem, equation (3.140), was derived exactly for the case of the lifting cylinder. in section 3.16 it is stated without proof that equation (3.140) also applies in general to a two-dimensional body of arbitrary shape. although this general result can be proven mathematically, it also can be accepted by making a physical argument as well. make this physical argument by drawing a closed curve around the body where the closed curve is very far away from the body, so far away that in perspective the body becomes a very small speck in the middle of the domain enclosed by the closed curve.

Answers

The Kutta-Joukowski theorem, which is represented by equation (3.140), was originally derived for the case of a lifting cylinder. However, it can also be applied to a two-dimensional body of arbitrary shape, as stated in section 3.16.

A more detailed explanation of the answer.
To make a physical argument for this generalization, we can draw a closed curve around the body.

The key is to draw the curve far enough away from the body such that the body appears as a very small speck in the middle of the domain enclosed by the closed curve.

By doing this, we are essentially treating the body as a point object at the center of the curve. Since the body is now a very small speck in comparison to the large domain, its specific shape becomes insignificant to the overall flow around it.

Therefore, the lifting force calculations derived from the Kutta-Joukowski theorem for the lifting cylinder should also apply to the two-dimensional body of arbitrary shape, as long as the body is small in comparison to the domain enclosed by the closed curve.

This physical argument allows us to accept that equation (3.140) can be applied in general to a two-dimensional body of arbitrary shape without requiring a mathematical proof.

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A survey was taken of a random sampling of residents of New York City and Los Angeles to compare how many
of them own a car

Answers

Answer:

The survey represents quantitative data and there is greater percentage of LA residents who own cars than NYC residents who do.

TRUE/FALSE return values are type-specific in php functions (a function only returns a value of a specified data type.)

Answers

Return values are type-specific in php functions The answer is False.

What is php function?

A PHP function is a piece of code that is very reusable. It can accept an argument list as input and return a value. Inbuilt functions in PHP number in the thousands.

You can develop your own functions in addition to the built-in PHP functions.

A function is a collection of statements that a programme can use repeatedly.

When a page loads, a function won't start running immediately.

A call to a function will cause the function to run.

In this a function only returns a value of a specified data type.

Hence, the given statement return values are type-specific in php functions is FALSE

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Suppose that you are an industrialist seeking to mine and transport large reserves of natural resources from beneath the Canadian tundra. Write a proposal for your plan, including passport economic and environmental effects What kind of map is this Someone please help me Ill give out brainliest please dont answer if you dont know help me please please please triangle 2222 Price ceilings are set by customer perception. Which of the following sets the floor for the price that a company charges?a. market conditionsb. revenue projectionsc. costsd. competitorse. customers GEOMETRY/ TRIG PLEASE HELP Just everything below the word problem!! Anything helps 20-9x+4y+7-xNeed help What is the best approximation of the value of a? a. 2.4 cm b. 2.7 cm c .3.0 cm d. 3.3 cm A conclusion reached after an evaluation of the facts and the precedent, and law. it is also called a ruling, an opinion, or a judgement.a. Trueb. 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Each selection may be used once, more than once, or not at all.Included, Excluded, Included but only with client management's approvalCommunicated orally with no need to document the communicationInternal controlsRelated matters1.State that the purpose of the audit was to express an opinion on the financial statements, and to express an opinion on the effectiveness of the entity's internal control over financial reporting.2.Identify, if applicable, items that are considered to be material weaknesses.3.State that the author is not expressing an opinion on the effectiveness of internal control.4.Include the definition of the termsignificant deficiency.5.Include the definition of the termmaterial weakness, where relevant.6.State that the author is expressing an unqualified opinion on the effectiveness of internal control.7.State that the communication is intended solely for management and external parties.8.Identify the matters that are considered to be significant deficiencies.select an option at related matters:1 included 2. excluded 3. included, but only with client management's approval 4. communicated orally with no need to document the communication what is the gravitational force acting on a 59kg person due to another 59kg person standing 2 m away? (G=6.67x10^-11 m^2/kg^2) Question 5. Bob Orleans invested $3,000 and borrowed $3,000 to purchase shares in Verizon Communications. At the time of his investment, Verizon was selling for $47 a share.o If Bob paid a $30 commission, how many shares could he buy if he used only his own money and did not use margin?o If Bob paid a $60 commission, how many shares could he buy if he used his $3,000 and borrowed $3,000 on margin to buy Verizon stock?o Assume Bob did use margin and paid a $60 total commission to buy his Verizon stock. Also, assume he paid another $60 to sell his stock and sold the stock for $54 a share. How much profit did he make on his Verizon stock investment? Which phrase as a more negative connotation?A. a box filled with documentsB. a box crammed with documents {{c1::spermatogonium}} undergo meiosis to produce diploid copies known as {{c1::primary spermocytes}} What are some good experiment ideas for quantum physics (stuff like the double slit experiment) 5)Cul de las siguientes afirmaciones representa una caracterstica propia de la repblica conservadora o autoritaria de Chile?a) La inestabilidad poltica e institucional del pas.b) La implementacin de un sistema democrtico de gobierno.c) La organizacin territorial bajo un sistema federal.d) La concentracin de los poderes del Estado en manos del Presidente.ayuda quiero un 7 xd