-What is the midpoint between the points (7, 3) and (-5, 5)?

Answer:

3. the answer is 5 degrees

4. 8 points

5. 56

6.24

Step-by-step explanation:

The equation of the line passing through the points (-4, 5) and (2, -4) is  \(y - 5 = -\frac{3}{2}(x + 4)\).

The point-slope form is expressed as:

( y - y₁ ) = m( x - x₁ )

Given that, the line passes through the points (-4, 5) and (2,-4).

First, determine the slope m:

\(m = \frac{y_2-y_1}{x_2-x_1}\\ \\m = \frac{-4 - 5}{2 - (-4)} \\\\m = \frac{-4 - 5}{2 + 4}\\\\m = \frac{-9}{6} \\\\m = -\frac{3}{2}\)

Now, plug the a point (-4,5) and the slope into the point slope form:

( y - y₁ ) = m( x - x₁ )

\(y - 5 = -\frac{3}{2}(x - (-4))\\\\y - 5 = -\frac{3}{2}(x + 4)\)

Therefore, the equation of the line is  \(y - 5 = -\frac{3}{2}(x + 4)\).

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Answer:

b= X*69=Y

Step-by-step explanation: If you buy 10 apples, and each apple costs 69 cents how much will it cost? 10*69=Y, now replace 10 with x, and you will have the answer.

Answer:

k=6

Step-by-step explanation:

https://www.symbolab.com/solver/calculus-calculator/-7%5Cleft(1-4k%5Cright)%2B3%3D164?or=input

this is the steps on s.y.m.b.o.l.a.b. I use it all the time.

Answer:

x=9

Step-by-step explanation:

13x-32 and 7x+22 are equal to each other (angles) so

13x-32=7x+22

13x-7x=22+32

6x=54

x=54/6

x=9

Answer:

Hello! Your answer would be below!

Step-by-step explanation:

Graph B)

Hope I helped! Ask me anything if you have questions!

Answer:

The correct answer is C 5^9

Step-by-step explanation:

I got it correct on EDG.

Answer:

C.

Step-by-step explanation:

I just did it on edg 2020 :)

Answer:

6,295

Step-by-step explanation:

just add them

The probability that the sample average falls outside the 3-sigma control limits of the X-bar chart is 0.27%.

The 3-sigma control limits are calculated using the standard deviation of the process. If the process is in control, then 99.73% of the sample averages will fall within the 3-sigma control limits. The remaining 0.27% of the sample averages will fall outside the control limits.

In this case, the sample size is 4, which is smaller than the sample size of 9 that was used to construct the control chart. This means that the control limits for the sample of size 4 will be narrower than the control limits for the sample of size 9.

As a result, the probability that the sample average falls outside the control limits will be higher for the sample of size 4.

Specifically, the probability that the sample average falls outside the 3-sigma control limits for a sample of size 4 is 0.27%. This means that there is a 0.27% chance that the new employee will observe a sample average that falls outside the control limits, even if the process is in control.

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Answer:

The area is 2,000 cm2

Step-by-step explanation:

The answer is that because Area is when you multiply the length times the width ( l x w ). The length is 40 cm and the width is 50 cm and when you multiply them, you will get 2,000 cm2.

Hope that helps. If you get it wrong, please let me know so I could check my work. Thank you and have a great rest of your day :) !

Answer:

23% chance

Step-by-step explanation:

There are a total of 26 students in the class, and 6 of them play basketball and 15 of them play baseball. This means that there are 6 + 15 - 9 = 12 students who play either basketball or baseball, and 9 students who play neither.

Of the 12 students who play either basketball or baseball, 6 of them play basketball and 15 of them play baseball, so there are 6 students who play both basketball and baseball. This means that the probability that a student chosen randomly from the class plays both sports is 6 / 26 = 0.23, or 23%.

The  hypothetical demand curve for tickets to a particular rock concert is given in the image attached.

According to Samuelson: theory, the law of demand states that people buy more at lower prices and less at higher prices when other things remain constant.

Note that by using the image,

Prices of ticket (cent)    Demand by consumer

5                                   35

4                                  30

3                                    70

2                                    80

1                                    95

Therefore, "Demands curves show how much people will buy the ticket at different prices over time." The Curve shows consumer purchases at different prices.

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The side lengths of the given triangle are 3 m, 10 m, and 10 m.

Let's assume the length of the third side of the triangle is x.

According to the given information, the two equal sides of the triangle are each 8 m less than six times the third side. Therefore, the lengths of the two equal sides can be expressed as:

6x - 8

6x - 8

The perimeter of a triangle is the sum of all three sides. In this case, the perimeter is given as 23 m:

x + (6x - 8) + (6x - 8) = 23

Simplifying the equation:

x + 6x - 8 + 6x - 8 = 23

13x - 16 = 23

13x = 23 + 16

13x = 39

x = 39 / 13

x = 3

Now that we have the value of x, we can find the lengths of the two equal sides:

Equal side 1 = 6x - 8 = 6 * 3 - 8 = 10 m

Equal side 2 = 6x - 8 = 6 * 3 - 8 = 10 m

Therefore, the side lengths of the triangle are 3 m, 10 m, and 10 m.

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To calculate the cash balance at the end of the period, we need to consider the cash inflows and outflows.

Starting cash balance: $4,520

Cash inflows: $1,654 (receivables collected)

Cash outflows: $1,961 (payments to suppliers) + $500 (cash expenses)

Total cash inflows: $1,654

Total cash outflows: $1,961 + $500 = $2,461

To calculate the cash balance at the end of the period, we subtract the total cash outflows from the starting cash balance and add the total cash inflows:

Cash balance at the end of the period = Starting cash balance + Total cash inflows - Total cash outflows

Cash balance at the end of the period = $4,520 + $1,654 - $2,461

Cash balance at the end of the period = $4,520 - $807

Cash balance at the end of the period = $3,713

Therefore, the cash balance at the end of the period is $3,713.

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Answer: D) Reflect over x-axis

=======================================================

Explanation:

When we do this type of reflection, a point like (1,2) moves to (1,-2).

As another example, something like (5,-7) moves to (5,7)

The x coordinate stays the same but the y coordinate flips in sign from positive to negative, or vice versa.

We can say that \((x,y) \to (x,-y)\) as a general way to represent the transformation. Note how y = f(x), so when we make f(x) negative, then we're really making y negative.

If we apply this transformation to every point on f(x), then it will flip the f(x) curve over the horizontal x axis.

There's an example below in the graph. The point A(2,8) moves to B(2,-8) after applying that reflection rule.

The value of 19 in Roman numerals is XIX

Roman numerals are defined as a numeral system which originated in ancient Rome and still remains the usual way of writing numbers throughout Europe into the Late Middle Ages.

Some examples of these numeral are;

We have to represent 19, we have;

X representing ten

IX representing nine

Put them together

19 is equal to XIX

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Let's calculate the products and check if they indeed have the same value:

Product of 32 and 46:

32 * 46 = 1,472

Reverse the digits of 23 and 64:

23 * 64 = 1,472

As you mentioned, the products are the same. This phenomenon is not unique to this particular pair of numbers. In fact, it occurs with any pair of two-digit numbers whose digits, when reversed, are the same as the product of the original numbers.

To find two other pairs of two-digit numbers that have this property, we can explore a few examples:

Product of 13 and 62:

13 * 62 = 806

Reversed digits: 31 * 26 = 806

Product of 17 and 83:

17 * 83 = 1,411

Reversed digits: 71 * 38 = 1,411

As for determining if a given pair of two-digit numbers will have this property without actually performing the multiplication, there is a simple rule. For any pair of two-digit numbers (AB and CD), if the sum of A and D equals the sum of B and C, then the products of the original and reversed digits will be the same.

For example, let's consider the pair 25 and 79:

A = 2, B = 5, C = 7, D = 9

The sum of A and D is 2 + 9 = 11, and the sum of B and C is 5 + 7 = 12. Since the sums are not equal (11 ≠ 12), we can determine that the products of the original and reversed digits will not be the same for this pair.

Therefore, by checking the sums of the digits in the two-digit numbers, we can determine whether they will have the property of the products being the same when digits are reversed.

the solution to the given differential equations is\[\left\{\begin{aligned}x(t)&=\frac{1}{4}\left(2 x_0+11 e^{-3t}+2 t-3 y_0\right), \\y(t)&=\frac{1}{4}\left(2 x_0-2 t+2 y_0+22 e^{-3t}-3 z_0-7\right), \\z(t)&=\frac{1}{4}\left(-2 x_0-22 e^{-3t}+3 y_0+3 z_0+15\right).\end{aligned}\right.\]

Given the differential equations,\[\left\{\begin{aligned}x'&=-\frac{1}{2} x+\frac{1}{2} y-\frac{1}{2} z+1, \\y'&=-x-2 y+z+t, \\z'&=\frac{1}{2} x+\frac{1}{2} y-\frac{3}{2} z+11 e^{-3 t}\end{aligned}\right.\]

By the formula of solving system of linear equations,\[\begin{aligned}\begin{pmatrix} x \\ y \\ z \end{pmatrix}'&=\begin{pmatrix} -\frac{1}{2} & \frac{1}{2} & -\frac{1}{2} \\ -1 & -2 & 1 \\ \frac{1}{2} & \frac{1}{2} & -\frac{3}{2} \end{pmatrix}\begin{pmatrix} x \\ y \\ z \end{pmatrix}+\begin{pmatrix} 1 \\ t \\ 11 e^{-3t} \end{pmatrix} \\ \begin{pmatrix} x \\ y \\ z \end{pmatrix}&=e^{At}\left(\begin{pmatrix} x_0 \\ y_0 \\ z_0 \end{pmatrix}+\int_0^t e^{-As}\begin{pmatrix} 1 \\ s \\ 11 e^{-3s} \end{pmatrix}\mathrm{d}s\right) \end{aligned}\]

where $A=\begin{pmatrix} -\frac{1}{2} & \frac{1}{2} & -\frac{1}{2} \\ -1 & -2 & 1 \\ \frac{1}{2} & \frac{1}{2} & -\frac{3}{2} \end{pmatrix}$.

Solving the matrix exponential,\[\begin{aligned}\lambda_1&=-3,\quad \mathbf{v}_1=\begin{pmatrix} 1 \\ -1 \\ 1 \end{pmatrix},\\ \lambda_2&=-1,\quad \mathbf{v}_2=\begin{pmatrix} -1 \\ 0 \\ 1 \end{pmatrix},\\ \lambda_3&=-1/2,\quad \mathbf{v}_3=\begin{pmatrix} 1 \\ 2 \\ 1 \end{pmatrix}.\end{aligned}\]So $P=\begin{pmatrix} 1 & -1 & 1 \\ -1 & 0 & 2 \\ 1 & 1 & 1 \end{pmatrix}$ and\[\begin{aligned}P^{-1}&=\frac{1}{4}\begin{pmatrix} 2 & -1 & 1 \\ 2 & 0 & -2 \\ -2 & 3 & 1 \end{pmatrix},\\ \begin{pmatrix} x \\ y \\ z \end{pmatrix}&=\frac{1}{4}\begin{pmatrix} 2 & -1 & 1 \\ 2 & 0 & -2 \\ -2 & 3 & 1 \end{pmatrix}\left(\begin{pmatrix} x_0 \\ y_0 \\ z_0 \end{pmatrix}+\int_0^t\begin{pmatrix} 1 \\ s \\ 11 e^{-3s} \end{pmatrix}\mathrm{d}s\right) \\ &\quad \times \begin{pmatrix} 1 & -1 & 1 \\ -1 & 0 & 2 \\ 1 & 1 & 1 \end{pmatrix}\begin{pmatrix} e^{-3t} & 0 & 0 \\ 0 & e^{-t} & 0 \\ 0 & 0 & e^{-t/2} \end{pmatrix}\begin{pmatrix} 1 & -1 & 1 \\ -1 & 0 & 2 \\ 1 & 1 & 1 \end{pmatrix}^{-1}\end{aligned}\]

Thus,\[\left\{\begin{aligned}x&=\frac{1}{4}\left(2 x_0+11 e^{-3t}+2 t-3 y_0\right), \\y&=\frac{1}{4}\left(2 x_0-2 t+2 y_0+22 e^{-3t}-3 z_0-7\right), \\z&=\frac{1}{4}\left(-2 x_0-22 e^{-3t}+3 y_0+3 z_0+15\right).\end{aligned}\right.\]

Hence, The solution to the given differential equations is [leftbeginalignedx(t)&=frac14left(2 x_0+11 e-3t+2 t-3 y_0right), y(t)&=frac14left(2 x_0-2 t+2 y_0+22 e-3t-3 z_0-7right), z(t)&

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Cory has used a total of 13.16 centimeters of wire (2 pieces of wire, each measuring 6.58 cm). Therefore, the length of the remaining wire is 53.76 centimeters, rounded to the nearest tenth of a centimeter.

To find the length of the remaining wire, we need to subtract the length of the wire used by Cory from the total length of the wire. Cory has used 2 pieces of wire, and each piece is 6.58 centimeters long. So, the total length of wire used is 2 * 6.58 = 13.16 centimeters.

To find the remaining wire, we subtract the length used from the total length. The total length of wire available was given as 66.92 centimeters. Subtracting the length used (13.16 cm) from the total length, we get 66.92 - 13.16 = 53.76 centimeters.

Since we need to round the answer to the nearest tenth of a centimeter, the length of the remaining wire is approximately 53.8 centimeters.

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Answer:

16 apples

Step-by-step explanation:

If the original ratio is 4:7.

Then we multiply both numbers by 4. Since 7 x 4 is 28.

So now you have (4x4):(7x4)

Your final ratio is 16 apples : 28 oranges

Answer:

m=-9

Step-by-step explanation:

First, add "-1" on both sides to get m/9=-1. Next, to the inverse of division and multiply 9 on both sides. This will cancel the 9 on the left side, and you will be left with m=-9 when you are finished multiplying on the right side. To check your work, plug m=-9 back into the equation and see if you get -2. This is the correct answer because you get -2 when you simplify -9/9 -1=?, and it is the same as the original problem. Hope this helps and please mark brainliest!!!

Jane travels 8 miles much farther than her trainer. The solution is obtained using arithmetic operations.

What are arithmetic operations?

By combining operands with one arithmetic operator, an arithmetic operation is given. The built-in functions add, subtract, divide, and multiply additionally allow for the specification of arithmetic operations.

3. Using pythagoras theorem, we get the equation as D² = 12² + 16².

⇒D² = 144 + 256

⇒D² = 400

⇒D = √400

⇒D = 20

4. Jane has traveled 28 miles in total whereas her trainer has traveled 20 miles.

So, the difference is 28-20= 8 miles

Hence, Jane travels 8 miles much farther than her trainer.

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The student 3's numeric grade percentage is 95.6%.

The final grade for the students is calculated based on the test scores and the class project score.

The test is worth 80% and the project is worth 20% of the grade. To calculate the final grade percentage, the individual percentages of test and project are computed, then added together.

The result cannot exceed 100%.Let us calculate the weighted test score for student 3.

There were three tests each worth 100 points. The scores of student 3 are 91, 78, and 83.

We have to add up the test scores; then divide by the total number of test points and then multiply by the weighted percentage.

The weighted test score is:(91+78+83)/300 * 80% = 76.6%

We can now calculate the percentage for the project. Student 3 received a grade of 95%.

Therefore, the percentage for the project is: 95% * 20% = 19%.

Now, we add the weighted test score to the weighted project score to find the final grade for student 3. 76.6% + 19% = 95.6%.

Therefore, The final grade of student 3 is 95.6%

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Answer:

ima say this in baby words bcz i dont know how to explain it otherwise sorry lol

fractions are part of an object or sum and a ratio are things comparedish?

Step-by-step explanation:

ratio: 3:4

fraction: 2/8

Answer:

ratios is like part of something i think like 1:3 = 1/3 and fractions can be divided unlike ratios

Step-by-step explanation:

Answer:

5 2/15

Step-by-step explanation:

Answer:

5 \(\frac{2}{15}\)

Step-by-step explanation:

A mixed number consists of a whole number and a proper fraction (meaning the numerator is less than the denominator).

To get a mixed number, we are going to divide 77/15 using long division:

(I attached an image down below for you to understand better)

15 goes into 77 only 5 times with a remainder of 2.

So our whole number is 5

And the remainder of 2 become of the numerator of our proper fraction, with 15 being our denominator.

So your answer is 5 \(\frac{2}{15}\)

Hope it helps (●'◡'●)

\(~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] ~\dotfill\\\\ (4)^{\frac{-4}{2}} \implies (4)^{-2}\implies 4^{-2}\implies \cfrac{1}{4^2}\implies \cfrac{1}{16}\)

Answer:

it isn't really visible . do it right

Step-by-step explanation:

please mark me brainiest like my answer and follow me on this

Answer:

Option B

The answer is 15

Step-by-step explanation:

AC = √[(x₂ – x₁)² + (y₂ – y₁)²]

Now,

x₁ = 2

x₂ = 14

y₁ = 10

y₂ = 1

AC = √[(x₂ – x₁)² + (y₂ – y₁)²]

AC = √[(14 – 2)² + (1 – 10)²]

AC = √[(12)² + (-9)²]

AC = √(144 + 81)

AC = √225

AC = 15 units

Thus, The distance between A(2, 10) and C(14, 1) is 15 units

-TheUnknownScientist 72

Answer:

See below:

Step-by-step explanation:

Hello! My name is Galaxy and I'll be helping you today :D. I hope you are having a nice day.

Theorums

To solve the problem, since it is in the field of Geometry, there is bound to be theorums and basic knowledge that we need to know, upon seeing this problem what we need to know are:

Supplementary Angles: When two angles add up to 180 degrees.

Complementary Angles: When two angles add up to 90 degrees.

Interior/Exterior Angles Theorum.

Right Angles.

Solving

So to solve this, I'll first start with number 11. In this, we need to solve for B and we are given the first angle and b as the second angle.

What we can do is first we know that it is a Complementary angle as we know 65 degrees + b has to equal to 90 degrees.

Upon solving that, we know that B for the first one is

\(90=b+65\\b= 25\)

We know that b is 25 degrees for the first one.

For the second one, we know that due to the interior/exterior angles theorem that 80 + b has to equal to 180 degrees due to the int/ext angles theorem and supplementary angles.

\(180=80+b\\b=100\)

We know that b is 100 degrees.

For the third one, we know the entire thing is 360 degrees. Since we know that, we can solve for b as we have all the angles needed.

\(244+23+b=360\\b=93\)

Upon solving, we know that b is 93 degrees.

For the final one, due to vertical angles, b is equal to 48 degrees!

Feel free to ask any questions you have in the comments!

Cheers!