#12: A train left Philadelphia at 8 AM on July 1st. It traveled
2,864 miles to Portland, Oregon, arriving at 9AM on July 4th.
What was the average rate of change of the train in miles per
hour?
Round to the nearest hundredth

Answer:

Y= 319 hope you have the best rest of the day of your life ever. can i have brainliest

Step-by-step explanation:

Steps for Solving Linear Equation

(10×12)+(5×11)+(12×12)=Y

Multiply 10 and 12 to get 120. Multiply 5 and 11 to get 55. Multiply 12 and 12 to get 144.

120+55+144=Y

Add 120 and 55 to get 175.

175+144=Y

Add 175 and 144 to get 319.

319=Y

Swap sides so that all variable terms are on the left hand side.

Y=319

The ordered pair for the given solution set should be (-1, 6) when the graph solution set for the given inequality function is involved.

What is inequality function?

Since an inequality is merely a particular kind of relation, we can graph it just like we would any other relation. When dealing with inequalities, the trick is to shade large portions of the graph rather than using lines to connect the dots. But you could use some cover.

The given inequality function be like

y > 1 ÷ 3x + 4

The ordered pair refer to the solution set that provided by plotting the graph of the inequality, that expressed the inequality where an equation, plotting the graph along with a solid line, and shading the sides should be above the line of the graph to show the greater than or equal to sign.

Hence, the ordered pair for the given solution set should be (-1,6).

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Comparing the two friends earning Montraie earns $ 0.5 per hour less than Serenity

The word problem that has to do with earnings of two friends Montraie and Serenity is solved by putting the problem in equation form

The equations are generated as follows

The equation for the earning for Montraie is y = 19.2x

Using the equation in 38 hours Montraie will earn

y = 19.2 * 38

y = 729.6

This means that Montraie earns 19.2 per hour

For Serenity the earning per hour is solved

= 748.60 / 38

= 19.7

comparing both earnings

Serenity earning - Montaie earning

= 19.7 - 19.2

= 0.5

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Answer:

I think -1.5 -0.1 0.8 1.1

Answer:

-1.5 || -0.1 || 0.8 || 1.1

Explanation:

Since it is from least to greatest, let's compare the 2 negative numbers -1.5 and -0.1.

-1.5 has a 1 in its first place while -0.1 has a 0. This means that -1.5 is smaller because the further a number is on the negative number line the smaller it is.

So, -1.5 is the smallest, then -0.1.

-1.5 || -0.1

Now we compare the 2 positive numbers 0.8 and 1.1.

0.8 has a 0 in its first place and 1.1 has a 1 in its first place. Because the numbers are positive, the number with the biggest digit in in front of the decimal is greater.

So, in this case 1.1 is greater than 0.8.

0.8 || 1.1

In order it is:

-1.5 || -0.1 || 0.8 || 1.1

Step-by-step explanation:

Kayden's math teacher said that each question answered correctly on a test would be worth 7 points. Answer the questions below regarding the relationship between the number of questions correct and the score on the test.

Since 00 questions correct gets you 00 points on the test, the function will have a yy-intercept of 0.0.

The rate at which points are earned is 7 points per question, so the slope of the function should be 7.7.

\text{Function Rule:}

Function Rule:

V(x)=7x

V(x)=7x

Plug x=11 Into Rule:

V(11)=7(11)=77

Correct Answer:

The independent variable, x, represents the number of questions correct, and the dependent variable is the score on the test, because the score on the test depends on the number of questions correct.

A function relating these variables is V(x) =V(x)= 7x7x.

So V(11) =V(11)= 7777, meaning 1111 questions correct will earn 7777 points on the test

Answer:

x<5

Step-by-step explanation:

2x-7+3x+10>x-6+8x-11

5x+3>9x-17

5x-9x>-17-3

-4x>-20

x<5

Answer:

x < 5

Step-by-step explanation:

step 1: simplify both sides of the inequality.

5x + 3 > 9x − 17

step 2: subtract 9x from both sides.

5x + 3 − 9x > 9x − 17 − 9x − 4x + 3 > − 17

step 3: subtract 3 from both sides.

−4x + 3 − 3 > − 17 −3 − 4x > − 20

step 4: divide both sides by -4.

-4x/-4 > -20/-4

x < 5

Answer:

No, 16% is not the right answer.

It's:

Cars under 25 mph / Total Number of Cars

Cars under 25 mph:

I count 42 I think.

Total Number:

42 + 7 + 1 = 50

42 / 50 = .84

.84 * 100 = 84%

So, 84% of cars are moving below the speed limit.

The total number different groups of four subjects are possible are 4845 ways.

The formula for the combination is-

ⁿCr = n!/r!(n - r)!

We are wondering in how many distinct options there are to choose 4 subjects out of 20;

n = 20

r = 4.

Sequence is not important because the topics can be arranged in any order and still form the same group, hence we must use a combination:

Review the combination's definition:

²⁰C₄ = 20!/4!(20 - 4)!

²⁰C₄ = 20!/4!16!

²⁰C₄ = 4845

Thus, the total number of different groups four subject groupings is 4845.

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Answer: The nearest whole number is 18

Step-by-step explanation: because 18 2/6 is closer to 18 than 19.

Answer:

[tex]f(10) = 103[/tex]

Step-by-step explanation:

f(x) = 3+10x

when x is 10, we have

3+10*10

= 103

:]

Answer:

x = 20

Step-by-step explanation:

the 3 unknown angles form a right angle and sum to 90° , that is

x + 2x + x + 10 = 90

4x + 10 = 90 ( subtract 10 from both sides )

4x = 80 ( divide both sides by 4 )

x = 20

Answer:

Step-by-step explanation:

From the picture we know that x + 2x + x + 10 = 90°

x + 2x + x + 10 = 90

4x = 80

x = 80 : 4

x = 20°

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

check

20 + 2 x 20 + 20 + 10 = 90

90 = 90

the answer is good

After solving the given equation at g(x) = 3 the value obtained is 3.

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the information given in the question,

The given equation is,

g(x) = -2x + 9

Then,

g(3) = -2(3) + 9

= -6 + 9

g(3) = 3

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Your question seems incomplete, the complete question may be:

If g(x) = -2x + 9, what is the value of x

when g(x) = 3?

The dimensions of the classroom are a width is 5 m and a length is 9 m.

We have been given that the width of a classroom is 4m less than the length its area is 45m², then.

L= 4 + W

Area = 45, so

L x W = 45

Now substituting the value of L, we get.

(4+W) W=45,

Now simplifying this we get.

4W + W² =45

W² + 4W - 45 = 0, this is a quadratic equation

Now solving this we get the factors 9 and -5,

(W+9) and (W-5) = 0

Thus, W= -9 or W= 5, since the width cannot be negative,  

So, it is width = 5

So, length = 9 m

In physics and arithmetic, the dimension of a mathematical space (or item) is informally defined as the minimal range of coordinates to specify any factor within it. therefore, a line has a dimension of one (1D) due to the fact handiest one coordinate is wanted to specify a factor on it – for instance, the point at 5 on more than a few lines. A floor, together with the boundary of a cylinder or sphere, has a size of two (2d) because two coordinates are needed to specify a point on it – for example, both a latitude and longitude are required to locate a point on the floor of a sphere. A two-dimensional Euclidean area is a -dimensional area on the aircraft. The internal of a dice, a cylinder, or a sphere is 3-dimensional (3-d) due to the fact 3 coordinates are had to find a factor inside these spaces.

In classical mechanics, area and time are distinct classes and seek advice from absolute space and time. That theory of the sector is a four-dimensional space however not the only one that was discovered as essential to explain electromagnetism. The four dimensions (4D) of spacetime encompass activities that are not really described spatially and temporally, however as a substitute are acknowledged relative to the movement of an observer. Minkowski's area first approximates the universe without gravity; the pseudo-Riemannian manifolds of fashionable relativity describe spacetime with depend and gravity. 10 dimensions are used to describe the superstring principle (6D hyperspace + 4D), eleven dimensions can describe supergravity and M-principle (7D hyperspace + 4D), and the kingdom-space of quantum mechanics is an infinite-dimensional feature area.

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Answer: 11^2, 5^3, 2^7

Step-by-step explanation:

11^2= 121

5^3= 125

2^7= 128

36 is a multiple of two numbers added together without a common factor.

When a number is exactly divided by a divisor, that divisor is known as a factor of that number.

Alternatively, a factor of a number is an exact divisor of the provided number.

A number's factors are either less than or equal to the supplied number; they cannot be bigger. Every number is a factor of itself, and the common factor of all numbers is 1.

A number can be divided exactly by numerous divisors if it is a multiple of the divisor, therefore when we determine the factors of two or more numbers, we discover that some factors are common. As an illustration, the factors of 35 are 1, 5, 7, 35 while those of 45 are 1, 3, 5, 9, 15, 45. 1 and.

Hence, 36 is a multiple of two numbers added together without a common factor.

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Answer:

(6,[tex]\frac{10}{3}[/tex])

Step-by-step explanation:

[tex]\frac{2+6+10}{3}[/tex], [tex]\frac{5+5+0}{3}[/tex]

(6, [tex]\frac{10}{3}[/tex]) o r(6, 3 [tex]\frac{1}{3}[/tex])

The centroid of the triangle with the given vertices s(2, 5) t(6, 5) r(10, 0) is,

⇒ (6, 10/3)

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

Three vertices of the triangle are,

⇒ s(2, 5) t(6, 5) r(10, 0)

Now, We can find;

The centroid of the triangle with the given vertices s(2, 5) t(6, 5) r(10, 0) is,

⇒ (2 + 6 + 10) / 3, (5 + 5 + 0) / 3

⇒ (6, 10/3)

Thus, The centroid of the triangle = (6, 10/3)

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Given that the first two sides of a triangle are 8 cm and 10 cm in length, the third side's range of potential lengths will be [2,18].

When the sample maximum and minimum are subtracted, the range of a collection of data is the difference between the greatest and lowest values. It uses the same units as the data to express itself. The difference between the highest and lowest values for a given data collection is the range in statistics. For instance, the range will be 10 - 2 = 8 if the given data set is 2, 5, 8, 10, and 3. As a result, the range can also be thought of as the distance between the highest and lowest observation.

Here,

The minimum length can be,

=10-8

=2 cm

The maximum length can be,

=10+8

=18 cm

(10-8)<x<(10+8)

2<x<18

The range of possible lengths for the third side will be [2,18] as The lengths of two sides of a triangle are 8 cm and 10 cm.

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Answer:

Hope this helps, Good Luck! :)

Step-by-step explanation:

EV = - + prob(win)*win

= -5 + 1/1000 * 375

=  -4.62

The requried, the expected value for a person that buys one ticket is approximately -$4.62. The correct answer is option A. -$4.62.

To calculate the expected value, we need to consider the probability of winning the color television and the corresponding value of the prize. We can then subtract the cost of buying the ticket to find the expected value.

Given:

Cost of one ticket = $5

Value of the color television (prize) = $375

Number of tickets sold = 1000

The probability of winning the color television is 1 out of 1000, as only one ticket will be selected out of the total 1000 tickets sold.

Expected Value (EV) = (Probability of winning * Value of prize) - Cost of the ticket

EV = (1/1000 * $375) - $5

EV = $0.375 - $5

EV = -$4.625

Rounded to two decimal places, the expected value for a person that buys one ticket is approximately -$4.62. The correct answer is option A. -$4.62.

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The most negative number corresponds to the variable that has the largest impact on the Value of the objective function. So, maximizing it first is most efficient.

What is pivot column in simplex method?

The Simplex method's pivot column is selected by the fundamental variable's biggest reduced cost coefficient. 4. The highest ratio of right side parameters to positive coefficients in the pivot column determines the pivot row in the Simplex approach.

A location of a leading entry in the matrix's echelon structure. A pivot is a non-zero number that is either transformed into a leading 1 and then used to make 0s, or it is utilized in a pivot position to create 0s.

The element of a matrix or array chosen first by an algorithm (such as Gaussian elimination, simplex algorithm, etc.) to do particular computations is known as the pivot or pivot element.

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If you chose the letters D and H for 20 turns, the number of times you are most likely to win is; Option C: 3

We are given the probability of winning for each letter as;

A = 5%

B = 10%

C = 15%

D = 5%

E = 5%

F = 25%

G = 10%

H = 10%

I = 10%

J = 5%

Now, we want to find the number of times you can win If you chose the letters D and H for 20 turns.

Thus;

Number of times you can win if you chose Letter D = 5% * 20 = 1 time

Number of times you can win if you chose Letter H = 10% * 20 = 2 times

Thus;

Total number of ways of winning = 1 + 2 = 3 times

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Answer:

-1

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{4.4cm}\underline{Slope Formula}\\\\Slope $(m)=\dfrac{y_2-y_1}{x_2-x_1}$\\\\where $(x_1,y_1)$ and $(x_2,y_2)$ \\are two points on the line.\\\end{minipage}}[/tex]

Define two points on the line:

Substitute the defined points into the slope formula:

[tex]\implies \textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-2-0}{0-(-2)}=\dfrac{-2}{2}=-1[/tex]

Therefore, the slope of the line is -1.

After solving the equations it will the infinite solutions, then it is a consistent system.

Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations.

A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.

As per the given information in the question,

The equations are,

y = -x + 1  (i) and,

2y = -2x + 2  (ii)

Divide equation (ii) by 2

y = -x + 1 (iii)

Solve equation (i) and (iii)

The value of x and y will be 0 which means that it has infinite solution, then it is a consistent system.

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The scale factor of the dilation is s = 4 units .

Given :

parallelogram fghj was dilated and translated to form similar parallelogram f'g'h'j'.

To find scale factor between figures, find two corresponding sides and write the ratio of the two sides.

The value of y is same through the distance of F to G.

So, FG = change in x coordinates

FG = -2 - ( -4 )

= -2 + 4

= 2

F'G' = 3 - ( - 5 )

= 3 + 5

= 8

Let s be the scale factor

s = F'G' / FG

= 8 / 2

= 4

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Answer:

the water fight ended at 2:30pm

Step-by-step explanation:

the balloons lasted an hour bringing it to 2pm then they used the hoses for 30 min bringing it to 2:30pm

Answer:

$4047.75

Step-by-step explanation:

If each helmet costs $89.95 and there are 45 of these helmets, you would multiply $89.95 x 45. Plug this into a calculator and you get $4047.75.

Answer:

FJ is -3/1

Step-by-step explanation:

And in order to be a trapezoid, just one pair of sides needs to be parallel.

Answer:

17.5

Step-by-step explanation:

Since the triangles are similar, the side lengths are proportional.  One way we can solve this is by finding the scale factor for the triangle on the left to the triangle on the right.  We can use the two corresponding sides that we know.

Let x = the scale factor

385x = 175  Divide both sides by 385

x = [tex]\frac{175}{385}[/tex]  Simplify by dividing the numerator and the denominator by 35

x = [tex]\frac{5}{11}[/tex]

Take the corresponding side of MK and multiply it by [tex]\frac{5}{11}[/tex] to find MK

38.5 x [tex]\frac{5}{11}[/tex] = 17.5

Based on the given steps the triangle ABC will be Congruent to triangle FGH because of the AAS Congruence .

What is AAS Congruence ?

the two triangle are said to be congruent based on the AAS Congruence when 2 angles and 1 non included side in one triangle are congruent to corresponding 2 angles and 1 non included side in another triangle.

So , in the question , based on the given steps we can say that ,
the two angles that are congruent is angle G and B , and angle A and angle F .

and the side that is congruent is BC = GH .

So  the triangle ABC and triangle FGH are congruent by AAS congruence .

Therefore , the correct option is (b) AAS Congruence Theorem .

The given question is incomplete , the complete question is

Step 1: we know that angle a b c is-congruent-to angle f g h because all right angles are congruent.

Step 2: we know that angle b a c is-congruent-to angle g f h because corresponding angles of parallel lines are congruent.

Step 3: we know that line segment b c is-congruent-to line segment g h because it is given.

Step 4: triangle a b c is-congruent-to triangle f g h because of the

(a) ASA congruence theorem.

(b) AAS congruence theorem.

(c) Third angle theorem.

(d) Reflexive property.

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Answer:

Step-by-step explanation:

2/5