Are the two events “choosing a sophomore” and “choosing someone who replied ‘Yes’” independent events?

Answers

Answer 1
Yes, they are independent event such that occurring the first event “choosing a sophomore” does not affect the probability of occurring the second event “choosing someone who replied ‘Yes’”

Related Questions

Recycled newspaper sells for $5.00 for 1 ton. The United States recycled 6.6 million tons of newspaper during 1991. Use the distributive property to find how much money was made from the sale of recycled newspapers in 1991.

Answers

5×6,600,000=33,000,000

Answer:

$33,000,000

Step-by-step explanation:

Recycled newspaper sells for $5.00 for 1 ton.

Let x ton be the amount recycled in 1991 by U.S.

so to represented this situation expression will be F(x) = 5 x

Now we replace x = 6.6 million tons

                              ≈ 6.6 × [tex]10^{6}[/tex] tons

Total money made by recycling 6.6 × [tex]10^{6}[/tex] tons

                                                 = 5 × 6,600,000

                                                 = $33,000,000

In 1991 U.S. made $33,000,000 from the sale of recycled newspapers.

The square root of the quotient of a number and 6 is 9. find the number

Answers

sq root (x / 6) = 9
We square both sides:
(x / 6) = 81
x = 486


What is the area of the figure? The diagram is not drawn to scale.

Answers

the formula for the area of a parallelogram is: bh
29 * 28 = 812

The area of a 2D form is the amount of space within its perimeter. The area of the given parallelogram is 812 in².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The given figure is a parallelogram, and the area of the parallelogram is given by the formula,

Area of parallelogram = Base × Altitude

                                     = 29 in × 28 in

                                     = 812 in²

Hence, the area of the given parallelogram is 812 in².

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Last week Jackson read 262.5 pages of a new adventure book. If he read for 5.25 hours how many pages did Jackson read per hour?

Answers

50 per hour, toy get 262.5 and then divide it by 5.25 to get how many pages per hour he reads

Answer: 50 pages per Hour

Step-by-step explanation:

What equation represents the asymptote of g(x)=e^x+4?

Answers

That's the e^x graph translated up by 4 units, so y = 4

Final answer:

The horizontal asymptote of the function g(x) = e^x + 4 is the line y = 4.

Explanation:

The question asks about the asymptote of the function g(x) = e^x + 4. An asymptote is a line that a graph approaches but never touches. To find the horizontal asymptote of this function, observe that as x approaches positive or negative infinity, the term e^x either grows very large or approaches zero. Therefore, the term +4 determines the horizontal asymptote since it shifts the entire graph of e^x up by 4 units. Thus, the horizontal asymptote is the line y = 4, which means the function approaches this line but never reaches it for x tending toward positive or negative infinity.

A book shelf is 14 inches wide there is enough space to fit 2 trophies one trophy is 2inches wider than the other how wide is the wider trophy

Answers

One trophy is 6 inches so the other one should be 8 inches. So the wider trophy would be 8 inches.

Please help me!! Thankyou!!

Answers

the justification for step 1 is wrong :) it should be “distribute” because you’re distributing the six!!
Step 1 has the incorrect justification. In multiplying (x+4) by the coefficient of 6, they are exercising the distributive property, rather than the combination of like terms.

A 10ft pole is to be erected and held in the ground by four wires attached at the top. The guy wires are attached to the ground at a distance of 15 ft from the base poke. What is the exact length of each guy wire? how much wire should be purchased if it cannot be purchased in franctions of foot

Answers

The pole, guy wire and ground forms a right angled triangle with the guy wire being the hypotenuse.
Legs = 10 ft and 15 ft.

The length of guys wire = Sqrt (10^2+15^2) = [tex]5 \sqrt{13} [/tex] ≈18.03 ft

A total of 4 guy wires.
Te total length required = 4*[tex] 5\sqrt{13} [/tex] ≈ 72.11 ft.

Since wire cannot be bought in fractions of foot, the length is rounded to the next whole number. That is,

Length required = 73 ft.

Suppose a map company wants to produce a globe with a surface area of 450 in2. use the formulaa equals 4 πr squared , where a is the surface area and r is the radius of the sphere. to the nearest tenth, what is the radius of the sphere? inches

Answers

we know that
[surface area of a sphere]=4*pi*r²
r²=surface area/(4*pi)
r=√[surface area/(4*pi)]
surface area=450 in²
r=√[450/(4*pi)]------> r=5.98 in------------> r=6 in

the answer is
r=6 in

A quadrilateral has angle measures of 84°, 107°, and 58°.

What is the measure of the fourth angle?

Enter your answer in the box.

Answers

Hello!

The angles in a quadrilateral add to 360°

Subtract the known angles from 360 to get the missing angle

360 - 84 - 107 - 58 = 111

The answer is 111°

Hope this helps!

The following data needs to be put into a stem-and-leaf plot.36.7, 38.1, 35.4, 37.4, 39.0, 33.6, 34.7, 36.9, 38.7, 35.5, 36.8, 33.7, 34.8, 39.7, 37.2, 36.8Which list shows all the stems needed to accurately create a stem-and-leaf plot?1. 32. 3, 4, 5, 6, 7, 8, 93. 0, 1, 2, 4, 5, 6, 7, 8, 94. 33, 34, 35, 36, 37, 38, 39

Answers

The correct answer is choice 4.

With the numbers given, you should use the whole number as the stem and the decimal as the leaf.

The whole numbers are 33,34,35,36,37,38,39

Answer:

The last one. Which is choice D.

Find the area of this shape

Answers

it is broken up into 2 different shapes a rectangle and a triangle.
 area for the rectangle is L x w  = 9 * 3.2 = 28.8
area of triangle = 1/2 x b x h = 1/2 x 11 x 9 = 49.5

total area = 28.8 + 49.5 = 78.3 square m

Which number is irrational? A. Syntax error from line 1 column 53 to line 1 column 60. Unexpected '0'. B. 1 over 9 C. square root of 12 D. fraction numerator square root of 64 over denominator square root of 4 end fraction

Answers

C. because the decimal is never ending, so it is irrational.
the correct answer is C

A bacteria culture starts with 150 bacteria and after 4 hours the population consists of 250 bacteria.what is the rate of the increase to the nearest percent?
a.11%
b.13%
c.15%
d.17%

Answers

B is correct:

A = Pe^(rt)

250=150e^(4t)

250/150=e^(4t)

In(250/150)=4t

t=In(250/150)/4=.1277or .13*100%=13%
Final answer:

The rate of increase of the bacteria population is found by calculating the population increase (final amount - initial amount), dividing by the initial amount, and multiplying by 100 to get the percentage. The calculated value is 66.66%, which doesn't match with any of the provided options.

Explanation:

The subject of this question is bacterial population growth, which falls under the mathematics category, specifically in the section known as growth rates. To find the rate of increase of the bacteria population, first, we have to find the increase in the population amount, which is the final amount (250 bacteria) minus the initial amount (150 bacteria). This gives us an increase of 100 bacteria.

Next, divide this increase (100) by the initial amount (150 bacteria) and multiply by 100 to convert it to a percentage. This gives the formula (250-150)/150*100 = 66.66%. But among the provided choices, we don't have this exact value, which implies that there might be a miscommunication or typographical error in the question.

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Vanessa can afford a $1405-per-month house loan payment. If she is being offered a 20-year house loan with an APR of 4.8%, compounded monthly, which of these expressions represents the value of the most money she can borrow?

Answers

The correct option is A.

Vanessa can borrow approximately $6255.57, represented by option A: [tex]$\frac{(\$ 1405)\left((1+0.004)^{240}-1\right)}{(0.004)(1+0.004)^{240}}$[/tex].

To determine the value of the most money Vanessa can borrow with a monthly payment of $1405 for a 20-year house loan with an APR of 4.8%, compounded monthly, we can use the formula for the monthly payment of a mortgage:

[tex]\[P = \frac{M}{\frac{r}{12} \left(1 - \left(1 + \frac{r}{12}\right)^{-nt}\right)}\][/tex]

Where:

P = Principal amount (the amount she can borrow)

M = Monthly payment ($1405)

r = Monthly interest rate (APR divided by 12, or 0.048/12)

n = Number of times the interest is compounded per year (12 for monthly)

t = Number of years (20)

Now, let's plug in the values and solve for P:

[tex]\[P = \frac{1405}{\frac{0.004}{12} \left(1 - \left(1 + \frac{0.004}{12}\right)^{-12*20}\right)}\][/tex]

Let's calculate the exponent and simplify:

[tex]\[P = \frac{1405}{\frac{0.004}{12} \left(1 - \left(1 + \frac{0.004}{12}\right)^{-240}\right)}\][/tex]

Now, we can simplify the monthly interest rate:

[tex]\[P = \frac{1405}{\frac{0.004}{12} \left(1 - \left(1.000333333\right)^{-240}\right)}\][/tex]

[tex]\[P = \frac{1405}{0.333333 \left(1 - 0.328624967\right)}\][/tex]

Now, let's calculate the value inside the parentheses:

[tex]\[P = \frac{1405}{0.333333 \times 0.671375033}\][/tex]

[tex]\[P \approx \frac{1405}{0.22487499}\][/tex]

Now, calculate P:

P ≈ 6255.57

So, Vanessa can borrow approximately $6255.57.

The correct expression that represents the value of the most money she can borrow is:

A. [tex]$\frac{(\$ 1405)\left((1+0.004)^{240}-1\right)}{(0.004)(1+0.004)^{240}}$[/tex]

The complete question is here:

Vanessa can afford a [tex]$\$ 1405$[/tex]-per-month house loan payment. If she is being offered a 20-year house loan with an APR of [tex]$4.8 \%$[/tex], compounded monthly, which of these expressions represents the value of the most money she can borrow?

A. [tex]$\frac{(\$ 1405)\left((1+0.004)^{240}-1\right)}{(0.004)(1+0.004)^{240}}$[/tex]

B. [tex]$\frac{(\$ 1405)\left((1-0.048)^{240}-1\right.}{(0.048)(1+0.048)^{249}}$[/tex]

C. [tex]$\frac{(\$ 1405)\left((1-0.004)^{200}-1\right)}{(0.004)(1+0.004)^{240}}$[/tex]

D. [tex]$\frac{(51405)\left((1+0.048)^{200}-1\right)}{(0.048)(1+0.048)^{240}}$[/tex].

Using the formula for monthly loan payment, we find Vanessa can borrow up to $220,000 with a 20-year loan at 4.8% APR.

To find the maximum amount Vanessa can borrow, we can use the formula for the monthly payment of a loan:

[tex]\[ P = \frac{A \times r}{1 - (1 + r)^{-n}} \][/tex]

Where:

-  P  = monthly payment

-  A = loan amount (the value we want to find)

-  r  = monthly interest rate (APR divided by 12)

-  n  = total number of payments (number of years multiplied by 12)

Given:

- Monthly payment ( P) = $1405

- APR ( r ) = 4.8% = 0.048

- Loan term = 20 years

First, we calculate r :

[tex]\[ r = \frac{4.8}{100 \times 12} = 0.004 \][/tex]

Then, calculate n:

[tex]\[ n = 20 \times 12 = 240 \][/tex]

Now, plug the values into the formula and solve for A:

[tex]\[ 1405 = \frac{A \times 0.004}{1 - (1 + 0.004)^{-240}} \][/tex]

Solve for A:

[tex]\[ A = \frac{1405 \times (1 - (1 + 0.004)^{-240})}{0.004} \][/tex]

[tex]\[ A \approx \$220,000 \][/tex]

So, Vanessa can borrow a maximum of $220,000.

The question probable maybe:

Vanessa can afford a $1405-per-month house loan payment. If she is being offered a 20-year house loan with an APR of 4.8%, compounded monthly, What is the value of  the most money she can borrow?

3^7=2187 converting from exponential to logarithm

Answers

3 ^7 = 2187

y= b^x     x=logb^y

7=log3 ^2187

can you do the rest?

It can be written as [tex]\rm{log_32187 = 7}[/tex].

Logarithm

A log function is a way to find how much a number must be raised in order to get the desire number. [tex]a^c = b[/tex] can be  written as

[tex]\rm{log_{a}b= c}[/tex]

where a is the base to which the power is to be raised,

b is the desired number that we want when power is to be raised,

c is the power that must be raised to a to get b.

For example, let's assume we need to raise the power for 10 to make it 1000 in this case log will help us to know that the power must be raised by 3.

[tex]\rm{log_{10}1000 = 3}[/tex]

Given to us,

Exponential, [tex]3^7 = 2187[/tex]

Now, a = 3, b= 2187, and c = 7.

Therefore, it can be written as [tex]\rm{log_32187 = 7}[/tex].

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What is the area of this triangle? Enter your answer as a decimal. Round only your final answer to the nearest hundredth.

Answers

The answer is 4.6, confirming the other answerers.

Hope this helps, Kam

A 4x4 matrix a with real entries and a4 = i, what are the possible characteristic polynomials of a

Answers

If [tex]\mathbf A^4=\mathbf I[/tex], then the characteristic polynomial of [tex]\mathbf A^4[/tex] is

[tex]p_{\mathbf A^4}(\lambda)=\det(\lambda\mathbf I-\mathbf A^4)=\det((\lambda-1)\mathbf I)=(\lambda-1)^4[/tex]

which means [tex]\mathbf A^4[/tex] has eigenvalues [tex]\lambda=1[/tex].


We know that if [tex]\chi[/tex] is an eigenvalue of [tex]\mathbf X[/tex], then [tex]\chi^n[/tex] is an eigenvalues of [tex]\mathbf X^n[/tex].


So if [tex]\lambda=1[/tex] is the only eigenvalue of [tex]\mathbf A^4[/tex], we know that [tex]\pm\sqrt[4]\lambda=\pm1[/tex] are the only possible eigenvalues of [tex]\mathbf A[/tex]. We can construct five possible characteristic polynomials for [tex]\mathbf A[/tex] in that case.

[tex]p_{\mathbf A}(\lambda)=(\lambda-1)^4[/tex]
[tex]p_{\mathbf A}(\lambda)=(\lambda+1)(\lambda-1)^3[/tex]
[tex]p_{\mathbf A}(\lambda)=(\lambda+1)^2(\lambda-1)^2[/tex]
[tex]p_{\mathbf A}(\lambda)=(\lambda+1)^3(\lambda-1)[/tex]
[tex]p_{\mathbf A}(\lambda)=(\lambda+1)^4[/tex]

The cost function for Michelle's new clothing store where she sells T-shirts is C = $10.25n + 1125. What is the slope of the cost function for Michelle's new store? A. $1125.00

Answers

10.25 is the slope.

The slope of the cost function for Michelle’s new store is 10.25.


This is because this equation is in slope-intercept form, y=mx + b, where m is the slope and b is the y intercept. Despite the different variables in the above equation, the idea remains the same. The slope is the coefficient on the variable n, which represents the rate of change of this function.


Hope this helps!

Jimmy owns a small engine repair business. The revenue, in dollars, can be modeled by the equation y = 420 + 72x, where x is the number of hours spent repairing small engines. The overhead cost, in dollars, can be modeled by the equation y = 24x² + 180 where x is the number of hours spent repairing bikes.

After about how many hours does the company break even?

Note: The phrase break even refers to the value where the two functions are equivalent.


1 h

5 h

2 h

10 h

Answers

y₁ = 420 + 72x
y₂ = 24x² + 180

y₁ = y₂
∴ 420 + 72x = 24x² +180
∴ 24x² - 72x - 240 = 0
∴ x² - 3x -10 = 0
∴ ( x + 2)( x - 5 ) = 0
∴ x = -2 (Unacceptable)    OR    x = 5

∴ The correct answer is the second ⇒⇒⇒⇒⇒ 5h

How do I do this one ?

Answers

Answer: fourth option -x² + 18x - 74

Explnation:

Since all the equations are parabolas, to find which one has a maximum at (9,7) you must verify two conditons:

1) the parabola opens downwards, and

2) the vertex is (9,7)

The first condtion means that the coefficient of the quadratic term is negative.

All the equations given meet that condition.

Therefore you have to find the vertex.

The vertex of a parabola is at the point where x = - b /(2a)

So, prove one by one.

Equation               b         a         x = -b/(2a)   

-x² -18x - 88        -18      -1         - 9 ⇒ not our equation (we aim to x = 9)

(jump to the last option)

-x² + 18x - 74        18      -1          9 ⇒ y = - (9)² + 18(9) - 74 = -81+162-74=7

Therefore, the last equation is the one.

What is the linear function that best fits the data set?

Answers

Answer: Fourth option y=-3x+15
Please, see the attached file.
Thanks.

A Ladder that is 32 ft long leans against a building. The angle of elevation of the ladder is 70 degrees. To the nearest tenth of a foot how high off the ground is the top of the ladder?

A. 20.3 ft

B. 10.9 ft

C. 26.2 ft

D. 39.1 ft

Answers

To calculate how high the ladder is off the ground we shall use he formula:
sin θ=opposite/ hypotenuse
from the information given:
from angle of elevation we shall have θ=90-70=20°
hypotenuse=length of the ladder=32 ft
opposite,x= distance off the ground
thus plugging the values in the formula we get:
sin 20=x/32
thus
x=32 sin 20
x=10.94465 ft
x~10.9 ft
the correct answer should be 30.1 ft

Please help!!! Will give brainly if correct!! 50 points

Answers

Total 175 students.
102 students go to movies at least twice a week and 73 students either go 1 times or not going to the movies.

So
Students go 0-1 times per week = 73/175 = 0.4172 = 41.71%

Answer: last option
41.71%

Answer:

175 students.

102 students go to movies at least twice a week and 73 students either go 1 times or not going to the movies.

So

Students go 0-1 times per week = 73/175 = 0.4172 = 41.71%

Answer: last option

A bag contains 10 red marbles, 5 gray marbles, 12 black marbles, and 8 white marbles. Two marbles are randomly drawn from the bag without replacement. What is the probability of drawing a black marble followed by a red marble?

Answers

This is conditional probability  because you are not replacing the marble. That means on the second pick you'll have one less marble and you want to multiply your fractions together not add them,so..
first event 12/35 times second event 10/34 
12/119

Answer: first event 12/35 times second event 10/34  

12/119

How much would it be to get 67.1 to 73.3?

Answers

6.2.. 73.3 - 67.1 = 6.1...

What is the area of a regular octagon with an apothem 16 inches long and a side 19 inches long? round the answer to the nearest inch?

Answers

The area of a regular octagon is given by:
 A = (4) * (L) * (ap)
 Where,
 L: side
 ap: apotema
 Substituting values we have:
 A = (4) * (19) * (16)
 A = 1216 square inches
 Answer:
 
The area of a regular octagon with an apothem 16 inches long and a side 19 inches long is:
 
A = 1216 square inches

if Andy's home is worth 260,000, what is his coverage for personal property if insurance covers 50 percent?

Answers

[tex] \frac{50*260000}{100}=130000[/tex]

Answer:

Amount covered by insurance = 130000

Step-by-step explanation:

Cost of Andy's home = 260000

Percentage covered by insurance = 50%

Amount covered by insurance = 50% of Cost of Andy's home

                                                   = 50% of 260000

                                                   = 0.50 * 260000         [50% written as a decimal is 0.50]

                                                   = 130000

In a kitchen there are three containers that can hold different quantities of water, as shown in the figure below: Three containers of the same shape but different sizes are shown, arranged from the shortest to the longest. The following quantities are written below the containers. x minus 1 liters below the first, x liters below the second, and x plus 1 liters below the third. How many liters of water can the three containers hold in all?

Answers

Altogether they can hold 3x liters of water.

We are adding the expressions:
(x-1)+x+(x+1)

We can combine the x terms together:
3x-1+1

Combine the -1 and +1:
3x+0
3x

Answer:

It's A 3x

Step-by-step explanation:

I just did the test it's 3x hope this helped. :)

the dimensions of a square are altered so that 8 inches is added to one side while 3 inches is subtracted from the other. The area of the resulting recatangle is 126 in2. What was the original side length of the square

Answers

Let
x--------> original length side of a square

we know that
area rectangle=length*width
area=126 in²
length=(x+8)
width=(x-3)
so
126=(x+8)*(x-3)------> x²-3x+8x-24=126----> x²+5x-150=0

using  a graph tool------> to resolve the second order equation
see the attached figure
the solution is
x=10 in

the answer is
the original length side of a square is 10 in

The original side of square is [tex]10\;\rm{in[/tex].

Given: the dimensions of a square are altered so that [tex]8[/tex] inches is added to one side while [tex]3[/tex] inches is subtracted from the other. The area of the resulting recatangle is [tex]126\;\rm{in^2}[/tex].

As per question,

Let the side of square be [tex]x[/tex].

According to the question,

Length of new rectangle be [tex]x+8[/tex].

Breadth of new rectangle be [tex]x-3[/tex]

Area of rectangle [tex]=l\times b[/tex]

     [tex](x+8)(x-3)=126[/tex]

[tex]x^2+8x-3x-24=126\\[/tex]

      [tex]x^2+5x-150=0[/tex]

[tex]x^2+15x-10x-150=0\\x(x+15)-10(x+15)=0\\[/tex]

        [tex](x+15)(x-10)=0\\[/tex]

So, [tex]x=10\;\rm{in[/tex] and neglecting [tex]x=-15\;\rm{in[/tex] as distance can't be negative.

Hence, original side of square is [tex]10\;\rm{in[/tex].

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