can I get some help ASAP please?

They all will play together when Ricky completes the work at 5:30 PM.

From the information given, we have;

Time which Ricky takes to complete the work

= 5 hrs = 5 x 60 = 300 mins

Ricky 's time allocation will be - 210 mins + 30 mins break + 90 mins post 4 = 5:30 he finishes the work.

Time which Jane  takes to complete the work = 90 × (7/3) = 210 mins

Jane 's time allocation will be - 210 mins  = 3:30 she finishes the work.

Time which Ramya takes to complete the work = 210 × (4/3) = 280 mins

Ricky's time allocation will be - 210 mins + 30 mins break + 70 mins post 4 = 5:10 she finishes the work.

Rajesh - 5:30 PM

Jane - 3:30 PM

Ann - 5:10 PM

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The required piecewise linear relations are f(x) = 4 if [0, 2), and f(x) = -2x + 8 if [2, 4).

A piecewise-defined function (also known as a piecewise function or a hybrid function) is a function defined by multiple sub-functions, each of which applies to a different interval of the main function's domain (a sub-domain).

The graph is given in the question, as shown

f(x) = 2x + 4 if [-2, 0]

This the sub-function define between the interval [-2, 0].

f(x) = 4 if [0, 2)

This the sub-function define between the interval [0, 2).

f(x) = -2x + 8 if [2, 4)

This the sub-function define between the interval [2, 4).

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Answer:

4 hours

Step-by-step explanation:

2/3*6/1= 12/3

12/3 simplified is 4

Answer:

Step-by-step explanation:

imagine you chop off a right triangle from the left side

now you have a rectangle and a right triangle

the rectangle

height 5

width 12

5 x 12 = 60

triangle

height 5

width 3

3 x 5 = 15

15 / 2 = 7.5

60 + 7.5 = 67.5 m^2

Answer: 67.5 m^2

Step-by-step explanation:

To find out the area of the yard, we split the shape up into a triangle and rectangle. The area of the triangle is,

A = 1 × b × h/2 = 1 × 3 × 5/2 = 7.5 m^2.

And the area of the rectangle is,

A = 12 × 5 = 60 m^2.

We then add the area of the triangle and the area of the rectangle.

A = 7.5 + 60 =67.5 m^2

Rounded to one decimal place, the area of the yard is 67.5 square meters.

since they are students order is not going to matter and it will be a combination.

n= total of students

n=19

r= students per group

r=3

there can be formed 969 groups

Answer: 169

Step-by-step explanation:  3x + 23 9x - 73= 242-73= 169

The distance from point A to point B is 2744.1 feet.

Define Trigonometric ratio

The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan).

Given, horizontal distance = 1357 feet

Let h  = height of the lighthouse

tan(A) = perpendicular / base

where, perpendicular = h

base = 1357 feet

Angle is 9°

so now, put these value in trigonometric ratio

tan(9) = h / 1357

where, tan(9) = 0.1584

h = 1357 * 0.1584

h = 214.9 feet

Let d = distance from point B to the Lighthouse base

Angle is 3°

h = 214.9 feet

so, tan(3) = 214.9 / d

where, tan(3) = 0.0524

0.0524 = 214.9 / d

d = 214.9 / 0.0524

d = 4101.1 feet

Distance between point A to B = 4101.1 - 1357

                                                    = 2744.1 feet

Therefore, the distance from point A to point B is 2744.1 feet

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Yes, all of the conditions for inference have been met to carry out a t-test for a difference in means.

Three main conditions need to be satisfied: the random condition, the 10% condition, and the Normal/large sample condition.

The random condition is met because the real-estate agent randomly assigned the homes to be staged or empty. This ensures that the sample is representative of the population of comparable homes.

The 10% condition is met because the agent selected 10 comparable homes, and the sample of 5 staged and 5 empty homes represents less than 10% of the population of comparable homes.

The Normal/large sample condition is met because the dot plot of each sample shows no strong skewness and no outliers. Additionally, with a sample size of 5 for each group, the t-test can still be valid even if the population distributions are not exactly normal.

Therefore, all the conditions for inference have been met, allowing the real-estate agent to carry out a t-test for a difference in means and test the hypothesis regarding the selling prices of staged and empty homes.

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The information needs to be divided into class intervals in order to make a histogram. Following that, make a tally to display the frequency (or relative frequency) of the data within each interval.

Histogram Illustration

135  137   136  137  138  139

140  139   137  140  142  146

148  145    139  140  142  143

144   143   141  139   137  138

139   136   133   134  132  132

Her weight should be a histogram.

Answer

131.5-133.5

133.5-135.5

135.5-137.5

137.5-139.5

139.5-141.5

141.5-143.5

143.5-145.5

145.5-147.5

147.5-149.5

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Answer:

What was question B can you copy and paste it or just share what is was. If I know the context of the question it would make this one much easier

Step-by-step explanation:

Answer:

12 miles to 20 minutes: a rate

Find unit rate to figure out how many miles Jasmine can drive in a mile.

20/12

20 divided by 12 = 1.6 repeated (you can round this to 1.7)

12 divided by 12 = 1

About 1.7/1

Not sure what you mean by 720/s

Step-by-step explanation:

Based on the normal probability plot, histogram, and boxplot that we created, we can conclude that the data is "normal" or "not normal".

To answer this question, we need to use the data from the MemphisSnowfall.xls file and create a normal probability plot, a histogram, and a boxplot using Excel or StatCrunch. Then, we need to determine if the data is "normal" or "not normal".

a. To create the normal probability plot using Excel, follow these steps:
 

b. To create a histogram using Excel, follow these steps:
 

c. To create a boxplot using Excel, follow these steps:
 

d. To determine if the data is "normal" or "not normal", we need to look at the normal probability plot, the histogram, and the boxplot. If the normal probability plot is a straight line, the histogram is bell-shaped, and the boxplot is symmetric, then the data is "normal". If the normal probability plot is not a straight line, the histogram is not bell-shaped, and the boxplot is not symmetric, then the data is "not normal".

Based on the normal probability plot, histogram, and boxplot that we created, we can conclude that the data is "normal" or "not normal".

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the test-taker made a score of 16 points on the test.

16 points

8 questions x 2 points per question = 16 points

The test consisted of 17 questions, each worth two points. By answering 8 of them correctly, the test-taker was able to earn 16 points. This score was acquired by multiplying the number of correct questions by the two points per question. Therefore, the test-taker made a score of 16 points on the test.

The test consisted of 17 multiple-choice questions, each worth two points. Each question contained four possible answers, one of which was the correct answer. By selecting the correct answer to 8 questions, the test-taker earned a total of 16 points. This score was calculated by multiplying the number of correct questions by the two points per question. Therefore, the test-taker achieved a score of 16 points on the test.

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The model that shows the problem 1 divided by 1/6 is option 1.

Every point in a plane that is at a specific distance from the center, or the circle's center, forms a shape. To put it another way, it is the curve that a moving point in a plane draws to keep a constant distance from another point. The radius of a circle is the separation of any point from the center. A positive integer is typically necessary for the radius. Except as specifically stated, this article discusses circles in the Euclidean plane and other aspects of Euclidean geometry.

In particular, a circle is a straight, closed curve that separates the plane into its inner and exterior.

Therefore, The model that shows the problem 1 divided by 1/6 is option 1.

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Answer:

It’s worth a pair of cozy slippers with a nice warm bowl of milk

Step-by-step explanation:

Answer:

\(\int^7_1 \in f(x) dx =7.6214\)

Step-by-step explanation:

From the question we are told that:

Definite integral \(\int^7_1 ln(x) dx, n = 4\)

Generally the equation for Trapezoidal Rule is mathematically given by

 \(\int^b_a f(x) dx = \frac{\triangle x}{2}(f(x_0)+2f(x_1)+2f(x_2)+... 2f(x_{n-1}+f(x_n))\)

Where

 \(h =\triangle x\)

 \(h=\frac{b-a}{n}\)

 \(h=\frac{7-1}{4}\)

 \(h=1.5\)

Therefore

For \(n =4\ \ i.e\ x_0 -x_4\)

The Endpoints are

 \(a=1\)

 \(a'=a+h=>1+1.5=>2.5\)

 \(a''=a'+h=>2.5+1.5=>4\)

 \(a'''=a''+h=>4+1.5=>5.5\)

 \(b=7\)

Evaluating trapezoidal function at endpoints

 \(f(x_0)=f(a)=f(1)=\in(0)=0\)

 \(2f(x_1)=2f(2.5)=2\in(2.5)=1.833\)

 \(2f(x_2)=2f(4)=2\in(4)=2.77\)

 \(2f(x_3)=2f(5.5)=2\in(5.5)=3.41\)

 \(f(x_0=f(7=\n(7)=1.945\)

Therefore approximation of the integral

 \(\int^b_a f(x) dx = \frac{\triangle x}{2}(f(x_0)+2f(x_1)+2f(x_2)+... 2f(x_{n-1}+f(x_n))\)

 \(\int^b_a f(x) dx = \frac{3/2}{2}(f(0)+1.833+2.77+3.41+1.945)\)

 \(\int^b_a f(x) dx =7.4704\)

b)

Generally the equation for Simpson,s Rule is mathematically given by

 \(\int^b_a f(x) dx =\frac{\triangle x}{3}(f(x_0)+4f(x_1)+2f(x_2)}+4f(x_3))+....2f(x_{n-2})+4f(x_{n-1})+f(x_n))\)

Where

 \(h \triangle x\)

 \(h=\frac{b-a}{n}\)

 \(h=\frac{7-1}{4}\)

 \(h=1.5\)

Therefore

For \(n =4 i.e x_0 -x_4\)

The Endpoints are

 \(a=1\)

 \(a'=a+h=>1+1.5=>2.5\)

 \(a''=a'+h=>2.5+1.5=>4\)

 \(a'''=a''+h=>4+1.5=>5.5\)

 \(b=7\)

Evaluating trapezoidal function at endpoints

 \(f(x_0)=f(a)=f(1)= \in(0)=0\)

 \(4f(x_1)=4f(2.5)=4 \In (2.5)=3.66516\)

 \(2f(x_2)=2f(4)=2\in(4)=2.77\)

 \(4f(x_3)=4f(5.5)=4\in(5.5)=6.8189\)

 \(f(x_4)=f(b)=f(7)=in(7)=1.9456\)

Therefore

 \(\int^b_a f(x) dx =\frac{\triangle x}{3}(f(x_0)+4f(x_1)+2f(x_2)}+4f(x_3))+....2f(x_{n-2})+4f(x_{n-1})+f(x_n))\)

 \(\int^b_a f(x) dx =\frac{1}{2}(0+3.66516+2.77+6.8189+1.9459)\)

 \(\int^b_a f(x) dx =7.6013\)

Therefore shown graphing utility

 \(\int^7_1 \in f(x) dx = x\inx-x+c\)

 \(\int^7_1 \in f(x) dx =7\in(7)-6\)

 \(\int^7_1 \in f(x) dx =7.6214\)

Answer:

Should be 19.533333 (3 keeps repeating)

Step-by-step explanation:

if you add all the numbers up it equals

293

There are 15 points so you should just have to do 293/15

Answer:

a) 0.7847 = 78.47% probability that no samples are mutated.

b) 0.9769 = 97.69% probability that at most one sample is mutated.

c) 0% probability that more than half the samples are mutated.

Step-by-step explanation:

For each sample, there are only two possible outcomes. Either they are mutated, or they are not. The probability of a sample being mutated is independent of any other sample, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

In which \(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by the following formula.

\(C_{n,x} = \frac{n!}{x!(n-x)!}\)

And p is the probability of X happening.

2% of cases.

This means that \(p = 0.02\)

12 samples are studied

This means that \(n = 12\).

(a) No samples are mutated.

This is \(P(X = 0)\). So

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(P(X = 0) = C_{12,0}.(0.02)^{0}.(0.98)^{12} = 0.7847\)

0.7847 = 78.47% probability that no samples are mutated.

(b) At most one sample is mutated.

This is:

\(P(X \geq 1) = P(X = 0) + P(X = 1)\)

Then

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(P(X = 0) = C_{12,0}.(0.02)^{0}.(0.98)^{12} = 0.7847\)

\(P(X = 1) = C_{12,1}.(0.02)^{1}.(0.98)^{11} = 0.1922\)

\(P(X \geq 1) = P(X = 0) + P(X = 1) = 0.7847 + 0.1922 = 0.9769\)

0.9769 = 97.69% probability that at most one sample is mutated.

(c) More than half the samples are mutated.

This is:

\(P(X > 6) = P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12)\)

So

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(P(X = 0) = C_{12,7}.(0.02)^{7}.(0.98)^{5} \approx 0\)

So the others(greater than 7) wil be 0 too

0% probability that more than half the samples are mutated.

Answer:

2r3

Step-by-step explanation:

15÷6

6 can go into 15 two times without going over the number 15. 6 times 2 is 12. So 15-12 = 3 so 2r3 or 5/2 or 2.5 or 2 1/2

The equation for Khloe's distance from her car in miles, y, as a function of the time in hours, x, is y = -3x + 11.

A linear function can be defined as the function whose graph is a straight line. It can also be defined as the function with one or more variables but does not have exponents to the variables or the exponent of the variable is 1.

We have the two points of x and y.

After 1 hour, Khloe is 8 miles from her car.

When x = 1, y = 8

After 3 hours, Khloe is 2 miles from the car.

When x = 3, y = 2

Points of the linear function are (1, 8) and (3, 2)

Slope of the line = (2 - 8) / (3 - 1) = -6/2 = -3

Take a point (1, 8).

Equation of the linear function in point slope form can be written as,

y - 8 = -3(x - 1)

y - 8 = -3x + 3

y = -3x + 3 + 8

y = -3x + 11

Hence the linear function representing the situation is y = -3x + 11.

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There are 16 servings in the 2-gallon bottle.

A unit rate means a rate for one of something.

Given that, Gina bought a 2-gallon bottle of water. We need to find how many 1/8-gallon servings are in the 2-gallon bottle,

To find how many serving are there, we will divide the total amount of the bottle to the amount one serving, then

= 2 ÷ 1/8

= 2×8

= 16

Hence, there are 16 servings in the 2-gallon bottle,

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m∠1=29

In this question,

1) Since we have, vertical angles, whose measure are written as polynomials then we can write according to the Vertical angles theorem:

3y² + 2y – 10 =2y² + 7y + 4

3y²-2y² -7y+2y-10-4=0

y²-5y-14=0

1.1) Finding the roots by Sum and Product

S(x) = ___ +___ = -5

P(x) =____ x ___ = -14

x1=-2 or 7

Since our Domain, cannot allow negative numbers, let's keep the positive one 7

2) Moreover to that, m∠1 + 2y² + 7y + 4 = 180º

m∠1 +2(7)²+7(7)+4=180

m∠1 +151 =180

m∠1=180-151

m∠1=29

Answer:

$10.85

Step-by-step explanation:

Divide 54.25 by 5 and you get 10.85.

Answer:

x=2, should be the correct answer but that isnt a choice

Step-by-step explanation:

8=2x+4

4=2x

2=x

x=2

Answer:

C. 0.48

Step-by-step explanation:

Probability = number of required outcome

_______________________

number of possible outcome

= total volleyball game events

_______________________

total sophomore + junior

= 66/137

= 0.48

Answer: D) 0.31

Step-by-step explanation:

Let A denote the event that a person is a sophomore.

Let B denote the event that a person has attended volleyball game.

A∩B denote the event that a person is a sophomore and attend volleyball game.

Let P denote the probability of an event.

We are asked to find:

P(A∩B)

From the table provided to us we see that:

A∩B=42

Hence,

P(A∩B)=42/137=0.3065 which is approximately equal to 0.31. Therefore ur answer will be 0.31.

Answer:

(-3, 0) and (-5, 0)

Step-by-step explanation:

[character limit thing]

Line AB is parallel to CD, for instance, as indicated by the formula AB ll CD.

How do parallel lines work?

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Answer:

q=6 creates a verticle line at x=6 shaded to the left and encludes the line.

Step-by-step explanation:

9 + q <= 15

q <= 15 - 9 = 6