A boat on a river travel from city a to city see with a stop at city be on the first part of the trip the boat travels at an average of 17 mph. From city B to C the average speed was 8 mph the entire trip covered 225 miles how long did the entire trip take if the two parts each took the same number of hours.

Answer:

Evangelina and Josh can be considered correct but this can be simplified to just 28. so if you want the simplification of this problem it would be no one but both are correct if you just want to see if they equal the same answer

Step-by-step explanation:

they are correct because they could simplify it

Evangelina and Josh can be considered correct but this can be simplified to 28.

Usually, simplification involves proceeding with the pending operations in the expression. Like, 5 + 2 is an expression whose simplified form can be obtained by doing the pending addition, which results in 7 as its simplified form. Simplification usually involves making the expression simple and easy to use later.

Given that Josh says that (4)(-7)(-1) is equal to (4)(7).

Evangelina says (4)(-7)(-1) is equal to (-28)(-1).

(4)(-7)(-1) = (4)(7) =28

Similalray;

(-28)(-1) = 28

We can see that the answer of the both the simplification are correct.

Evangelina and Josh can be considered correct but this can be simplified to 28.

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Mollie can expect to lose $1.50 per game played.

What is Mollie's expected profit per game, assuming players play only once?

First, let's calculate the expected revenue per game:

Probability of winning: 0.1

Revenue from winners: $5

Probability of losing: 0.9

Revenue from losers: $0

Expected revenue per game = (0.1 x $5) + (0.9 x $0) = $0.50

Now, let's calculate the expected cost per game:

Cost per game: $2

Expected cost per game = $2

Therefore, Mollie's expected profit per game is:

Expected profit per game = Expected revenue per game - Expected cost per game

Expected profit per game = $0.50 - $2

Expected profit per game = -$1.50

This means that, on average, Mollie can expect to lose $1.50 per game played.

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Answer:

------------------------

We have a repeating decimal 4.6(1).

Let's express it as a GP:

Fund the sum of infinite GP, with the first term of a = 0.01 and common ratio of r = 0.1:

Add 4.6 to the sum:

Hence the fraction is 4 11/18.

Answer:

The middle  number in a data set is called the MEDIAN.

Step-by-step explanation:

Answer:

Always middle number..

Answer:

  f(x) = 3x³ -6x² -21x -12

Step-by-step explanation:

You want a polynomial function that touches the x-axis at x = -1, crosses it at x = 4, and goes through the point (-2, -18).

Each zero (p) of a polynomial corresponds to a linear factor (x -p). If the zero has even multiplicity, the function will not change sign there, but will touch the x-axis and "bounce".

The requirements indicate a factor (x +1) with even multiplicity, and a factor (x -4). The least-degree such polynomial will have the factored form ...

  f(x) = a(x +1)²(x -4)

The value of this polynomial at x = -2 is ...

  f(-2) = a(-2 +1)²(-2 -4) = -6a

We want this to be -18, so ...

  -6a = -18   ⇒   a = 3

Then the factored polynomial is ...

  f(x) = 3(x +1)²(x -4)

When we multiply this out, we get ...

  f(x) = 3x³ -6x² -21x -12

__

Additional comment

The attached graph verifies the desired characteristics.

Siddharth and Alek's new restaurant, located near the UW campus, is experiencing great success.

Despite being takeout-only, the restaurant is able to accept orders through multiple food delivery apps, including UberEats, DoorDash, Fantuan, and more. The restaurant utilizes a total of k apps, each having its own queue of customers.

The restaurant's decision to accept orders through various food delivery apps allows them to reach a wider customer base and cater to the preferences of different users.

By partnering with multiple platforms like UberEats, DoorDash, and Fantuan, the restaurant can tap into their respective user bases and leverage their delivery infrastructure. Each of these apps likely operates independently, maintaining their own queues of customers and managing orders received through their platform.

By utilizing k total apps, the restaurant can efficiently handle a large volume of orders and effectively serve its customers while benefiting from the popularity and reach of multiple delivery platforms.

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Answer:

1008 ft cubed

Step-by-step explanation:

18 times 7 times 8 equals 1008

Answer: 1008 ft³

If you're in k12 this is the answer :P

The number of dimes Joe has is 6.

Joe has dimes and nickels, the total amount is $1.45

We have to find the number of dimes Joe has.

Suppose the number of dimes is d, so we have the number of nickels is 2d + 5

Now from the question, we get an equation:

0.10d + 0.05( 2d+ 5) = $1.45

To know the value of d we need to solve the equation:

0.10d + 0.10d + 0.25 = 1.45

0.20d = 1.20

d = 120/20

   = 6

Hence we get the total number of dimes Joe has is 6.

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Answer:

-15

Step-by-step explanation:

A moderately negative correlation between both of them variables is shown by the resultant correlation coefficient of -0.55.

We can construct a correlation matrix to determine the relationship between the number the group visits received and the fructosamine level. This indicates that the fructosamine level typically decreases as the amount of group visits increases.

This could imply that patients can keep better control of glucose, as seen by lower fructosamine levels, by participating in group visits and getting support or education about managing diabetes.

It's crucial to remember that a connection does not necessarily indicate a cause.

Further study is required to show a causal link between the fructosamine level and the number the group visits that participants attended. Overall, the moderately negative correlation points to some potential benefits of group visits for treating diabetes.

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Answer:

Step-by-step explanation:

a. 5x7 = 35 days

b. 12 x 7 = 84 days

c. not sure, its missing the number

Answer:

0

Step-by-step explanation:

All the numbers equal each other out.

for example:

-6+6=0

so if you have -6+-5+-4+-3+-2+-1+0+1+2+3+4+5+6, all of the numbers equal each other out.

Hope this helps!

Answer: 2 pies

Step-by-step explanation: 18/6 = 2

Step-by-step explanation:

Perpendicular : means two lines meet at 90°

1) angle B = 90° - 50°

= 40°

2) Angle D = 90° - 30°

= 70°

The y difference of the 2 lines are 6(you can just count these)

The x difference of the 2 lines are 8(again you can count this)

Now calculate distance using distance formula (the pythag theorem)

sqrt(6^2+8^2)=sqrt 100= 10

Therefore the distance of AC is 10.

Answer:

see explanation

Step-by-step explanation:

since BD = DC then Δ BCD is isosceles with base angles being congruent

∠ C = ∠ 2 = \(\frac{180-100}{2}\) = \(\frac{80}{2}\) = 40°

since ∠ 1 = ∠ 2 then ∠ 1 = 40° , so

∠ B = ∠ 1 + ∠ 2 = 40° + 40° = 80°

the sum of the 3 angles in Δ ABC = 180° , then

∠ A = 180° - ∠ B - ∠ C = 180° - 80° - 40° = 180° - 120° = 60°

then

∠ A = 60° , ∠ B = 80° , ∠ C = 40°

The chain rule for the function: dh/dx = df/dx * du/dx * dv/dx, where df/dx, du/dx and dv/dx are the derivatives of f, u and v with respect to x.

The chain rule is a rule used to calculate the derivative of a composite function. It states that the derivative of the composite function is equal to the product of the derivatives of each of its component functions. In the case of the function dh/dx, where h(x) = f(x, u(x), v(x)), the chain rule can be written as:

dh/dx = df/dx * du/dx * dv/dx

This means that the derivative of h with respect to x is equal to the product of the derivatives of f with respect to x, u with respect to x, and v with respect to x. This can be broken down further, where df/dx is the derivative of f with respect to x, du/dx is the derivative of u with respect to x, and dv/dx is the derivative of v with respect to x.

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Answer:  2.39

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Given:  \(\textsf{185/100 + 50\% + 4\%}\)

Find:  \(\textsf{Convert to simplified decimal}\)

Solution: In order combine the numbers together we must first convert all of them to a fraction.  The first number is already in fraction form, but the other ones are in a percent form.  What a percent value means is just a number out of 100 which we can use to change 50% to 50/100 and 4% to 4/100.

Now we have 185/100 + 50/100 + 4/100 which we can combine together to 239/100 to which we can use a calculator and figure out that the answer in decimal form would be 2.39

\(\huge\text{Hey there!}\)

\(\mathsf{\dfrac{185}{100} + 50\% + 4\%}\\\\\mathsf{= \dfrac{185}{100} + \dfrac{50}{100} + \dfrac{4}{100}}\\\\\mathsf{= \dfrac{185\div 5}{100\div 5} + \dfrac{50\div50}{100\div50} + \dfrac{4\div4}{100\div4}}\\\\\mathsf{= \dfrac{37}{20} + \dfrac{1}{2} + \dfrac{1}{25}}\\\\\mathsf{= 1\dfrac{17}{20} + \dfrac{1}{2} + \dfrac{1}{25}}\\\\\mathsf{= \dfrac{47}{20} + \dfrac{1}{25}}\\\\\mathsf{= 2 \dfrac{7}{20} + \dfrac{1}{25}}\\\\\mathsf{= 2\dfrac{39}{100}}\\\\\mathsf{= \dfrac{239}{100}}\\\\\mathsf{\approx 2.39}\)

\(\huge\text{Therefore, your answer should be: \boxed{\mathsf{\dfrac{239}{100}\ or\ 2.39}}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

The correct answer is B. The set is a subspace of P2. The set contains the zero vector of P2, the set is closed under vector addition, and the set is closed under multiplication by scalars.

1. The set contains the zero vector of P2:
When a=0, p(t) = 0t = 0, which is the zero vector in P2.

2. The set is closed under vector addition:
Let p1(t) = a1t and p2(t) = a2t be any two polynomials in the set. Their sum is:
p1(t) + p2(t) = a1t + a2t = (a1 + a2)t
Since a1 + a2 is also in R, the sum is still in the same set.

3. The set is closed under multiplication by scalars:
Let p(t) = at be a polynomial in the set and let c be any scalar in R. Then:
cp(t) = c(at) = (ca)t
Since ca is also in R, the product is still in the same set.

Since all three conditions are satisfied, the set is a subspace of P2.

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Answer:

To find out by how much the price was reduced, we can use the following equation:

price reduction = original price * reduction percentage

We know that the price reduction is £264 and the reduction percentage is 17.5%, so we can plug those values into the equation to get:

price reduction = £264 / 17.5%

To solve this equation, we need to express the percentage as a decimal. We can do this by dividing the percentage by 100:

price reduction = £264 / (17.5 / 100)

This simplifies to:

price reduction = £264 / 0.175

Solving this equation gives us a price reduction of £1512.

So, the original price was reduced by £1512.

Step-by-step explanation:

The volume of the block after cutting the smaller cubes is:

volume = 56/125 \(cm^{3}\)

What is volume?

Volume is a mathematical term that describes how much three-dimensional space an object or closed surface occupies.

The formula to calculate the volume of the cube is given by:

Volume = \(a^{3}\), where a is the length of its sides or edges

Length of solid wooden cube= \(\frac{4}{5} cm\)

Length of smaller wooden cube= \(\frac{1}{3} cm\)

Volume of the large cube = \((\frac{4}{3} )^{3}\)

Volume of the large cube = \(\frac{64}{125} cm^{3}\)

Volume of the small cube = \(\frac{1}{5} cm^{3}\)

Volume of the small cube = \(\frac{1}{125} cm^{3}\)

Volume of block after cutting out the smaller cubes is

                = \(\frac{64}{125} -\frac{(8)(1)}{125}\)

                = \(\frac{64-8}{125}\)

                =\(\frac{56}{125}\)\(cm^{3}\)

Hence, the volume of the block after cutting the smaller cubes is:

volume = 56/125 \(cm^{3}\)

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The values of a, b, c are 152°, 28°, 152° respectively.

Angles around a point describes the sum of angles that can be arranged together so that they form a full turn.

The sum of angles at a point will give 360°.

This means that a + b + c + 28 = 360

c +28 = 180° ( angle on a straight line)

c = 180 -28

c = 152°

c = a( alternate angles are equal)

therefore the value of a = 152°

b = 28( alternate angles are equal)

therefore the value of b is 28

therefore the values of a, b, c are 152°, 28°, 152° respectively

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Answer:

43cm

Step-by-step explanation:

Given

Length of Log = 291cm

First Piece = 67cm

Second Piece = 181cm

Required

Determine the length of the third piece

Given that the log was cut into three;

this implies that;

Length of Log = First Piece + Second Piece + Third Piece

Substitute values for first piece, second piece and length of log;

\(291 = 67 + 181 + Third\ Piece\)

\(291 = 248 + Third\ Piece\)

Subtract both sides by 248

\(291 - 248 = 248 - 248 + Third\ Piece\)

\(43 = Third\ Piece\)

\(Third\ Piece = 43\)

Hence, the length of the third piece is 43cm

Answer:

The lime represents 0 im pretty sure.

I believe so because on the bottom left it says that lime + cherry = cherry, which could only mean that the lime has a value of 0, otherwise the sum would be different.

Answer:

Step-by-step explanation: 123 × 45 + 246 × 30 + 369 × 15.= 18450

Sampling error refers to the discrepancy between sample characteristics and population characteristics. It can be diminished by increasing the sample size, using random sampling techniques, and improving response rates.

A) Sampling error refers to the difference between the characteristics of a sample and the characteristics of the population from which it was drawn.

In other words, sampling error refers to the degree to which the sample statistics deviate from the population parameters.

B) Sampling error can be diminished by increasing the sample size, using random sampling techniques to ensure that the sample is representative of the population, and minimizing sources of bias in the sampling process.

C) Convenience sampling, snowball sampling, and judgmental sampling are all methods of non-probability sampling, which means that they do not involve random selection of participants.

As a result, these methods are more likely to yield sampling error than probability sampling methods.

Convenience sampling involves selecting participants who are readily available, which may not be representative of the population of interest.

Snowball sampling involves using referrals from existing participants, which may create biases in the sample.

Judgmental sampling involves selecting participants based on the researcher's judgment of who is most relevant to the study, which may not be representative of the population of interest.

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Answer:

the probability: (4,4) it is certain to happen. (6,3) it is not likely nor unlikely

because it is half. (9,5) it is likely to happen.

Step-by-step explanation:

Answer:

2/16

Step-by-step explanation:

First you need to find a common multiple of 4 and 8. Let's do sixteen.

Since we have changed the denominator, we need to change the numerator aswell

3/4 turns to 12/16 because to get sixteen, 4 is multiple by four, so we do the same to the 3 (multiply it by 4)

5/8 turns in 10/16, because we multiplied the 8 (denominator) by 2, so we have to do the same to the 5 (numerator).

12/16-10/16=2/16,

you can also simplify it to 1/8, if you want.