Please help ! Simplify the expression below

Answer:

answer: 19 hope this answer helps

The quadrilateral with coordinates Q(-3,4), R(5,2), S(4,-1), and T(-4,1) is not a rectangle as adjacent sides are not perpendicular to each other.

Coordinates of the quadrilateral QRST are,

Q(-3,4), R(5,2), S(4,-1), and T(-4,1)

Quadrilateral QRST is a rectangle,

All angles are right angles.

Opposite sides are parallel and equal in length.

The slopes of the sides and the lengths of the sides.

Slope of QR

= (2 - 4)/(5 - (-3))

= -2/8

= -1/4

Slope of RS

= (-1 - 2)/(4 - 5)

= -3/-1

= 3

Slope of ST

= (1 - (-1))/(-4 - 4)

= 2/-8

= -1/4

Slope of TQ

= (4 - 1)/(-3 -(-4) )

= 3/1

= 3

Length of QR

=√((5 - (-3))^2 + (2 - 4)^2)

= √(64 + 4)

=√(68)

Length of RS

= √((4 - 5)^2 + (-1 - 2)^2)

= √(1 + 9)

= √(10)

Length of ST

= √((-4 - 4)^2 + (1 - (-1))^2)

= √(64 + 4)

= √(68)

Length of TQ

= √((-3 -(-4))^2 + (4 - 1)^2)

= √(1 + 9)

= √(10)

Slopes of opposite sides are equal .

This implies opposite sides are parallel to each other.

Opposite side lengths are also equal.

But product of the slopes of adjacent sides not equal to -1.

They are not perpendicular to each other.

Therefore, the quadrilateral with given coordinates is not a rectangle.

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The above question is incomplete , the complete question is:

Prove or disprove that the quadrilateral QRST with coordinates Q(-3,4), R(5,2), S(4,-1), and T(-4,1) is a rectangle.

Answer: B or D

Step-by-step explanation:

Karens ration is 5:15 whilst chens is 6:19

1/3 of 15 is gonna be 5, while 19 is gonna be around 6.3

I got 1/3 cause there is 3 colors, and red is one of them, since the question is asking about the total. I would be leaning more towards B though.

Answer:

Chen: 6/19

Step-by-step explanation:

Anne: 2/14 = 0.142

Karen: 5/15 = 0.133

Janice: 4/14 = 0.285

Chen: 6/19 = 0.316

Answer:

  2π yards

Step-by-step explanation:

You want the circumference of a circle with a radius of 1 yard.

When the radius is given, the formula for circumference is ...

  C = 2πr . . . . . circumference for radius r

When the diameter is given, the formula for circumference is ...

  C = πd . . . . . circumference for diameter d

For a radius of 1 yard, the circumference is ...

  C = 2π(1 yard) = 2π yards

The circle's circumference is 2π yards.

__

Additional comment

The diameter is twice the radius, so ...

  d = 2r

That is, the diameter of the given circle is 2 yards. Using the second formula, we get ...

  C = π(2 yards) = 2π yards

Rearranging the second formula, we can get the equation ...

  π = C/d

That is, π (pi) is the ratio of the circumference to the diameter.

Answer:

She would earn $210

Step-by-step explanation:

3500·0.06=210

Answer:

its y=x+3

Step-by-step explanation:

i believe that because the chart starts off with three and it only uses it once it goes up 1 for the rest

Answer: 21

Step-by-step explanation:

Answer:

90 sq ft

Step-by-step explanation:

Find the area of the inside rectangle, (14 x 13) and get 182

Find the area of the big rectangle (17 x 16) and get 272, then subtract the smaller one from the bigger one and get 90

The value of r = 9.078.

pv = nrt. The factor “r” in the ideal gas law equation is known as the “gas constant”. r = \(\frac{pv}{nt}\). The pressure times the volume of a gas divided by the number of moles and temperature of the gas is always equal to a constant number.

so the student weights out .0422 grams of the magnesium metal so from here we can calculate that more's, the magnesium that he used, that is the mass of the magnesium over the more mass, which is .024422 over 24 point. That's equal to about .001758. More so also, it says the magnesium metal is react with excessive hydrochloric acid and produce hydrogen gas. A sample of the hydrogen gas is collected over water in a meter at 22 cecr, the volume of clictic gas is 43.9 and mastic pressure. Is that so using the experimental and collected data calculated are in the percent error? So we know the magnesium react with hydrochloride. The reaction ratio is 1 to 2 and we produce 1. More is the hydrogen and 1. More is magnesium chloride. So from this equatium we know that more of the hydrogen that would be produced in this case is equal to the mass of the magnesium here, that's his .001758 more and set way. There's among hydrogen. The temperature is 32 (degree celcius) which we need to convert the unit into kelvin, so it's actually about field 5.15 kelvin and tells you. The volume of the gas is 43.9 in ml, which is .0439 liter and tells you the pressure of the gas is about 832 millimeter. Mercury, which is a 2 times 13332 plus ca, that's equal to about 110922.24 par. So in this case we know p v = n r t.

r = \(\frac{pv}{nt}\)

So p = 110922.24. V = 0.0439 , n = 0.001758 t =  305.15. So let's just do the calculations here.

In this case you will find r=?

Here it's about 9.078.

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Answer:

by game 3(at 1:00 p.m.)

temperature increases to 5 degrees at 1:00 p.m

The sum of the diagonals of a rectangle = 223.6 cm if the area of the rectangle is 5000 cm².

Area can be defined as the quantum of material of a given consistence needed to make a model of the shape, or the quantum of makeup needed to cover the face with a single fleece. It's the two- dimensional fellow of the length of a wind or the volume of a solid.

Given,

Area of a cube = 5000 square cm

Also given that length is two times of the range also,

l = 2w

Area = l × w

5000 = 2w × w

2w ² = 5000

w ² = 2500

w = 50

also, l = 100

thus, l = 100 cm, w = 50 cm

Sum of the inclinations of a cube = √ l ² w ²

= √ 100 ² 50 ²

√ 10000 2500

= √ 12500

= 111.8 cm

In a cube, we've two inclinations

So, The sum of the inclinations of a cube = 111.8111.8 = 223.6 cm

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Answer:

\(5b - 2 = 4\)

Step-by-step explanation:

two less than implies that we have to subtract 2 from the result of multiplication of 5 and a variable, therefore we get the equation:

\(5b - 2\)

equate it to 4.

Hopefully, this answer helped you

Answer:

nope

Step-by-step explanation:

Answer:

6x4 feet

Step-by-step explanation:

6 x 4 = 24

6 - 3 = 3

4 - 1 = 3

Answer:

26 blocks

Step-by-step explanation:

 To determine the number of blocks Tommy walked, you will calculate the distances between each of his points (ordered pairs).

Using the distance formula i.e\(\sqrt{(c-a)^2+(d-b)^2}\)

(0,0) to (0,6) is : \(\sqrt{(0-0)^2+(6-0)^2}\) = 6 blocks  

(0,6) to (7,6) is: \(\sqrt{(7-0)^2+(6-6)^2}\)= 7 blocks

(7,6) to (7,0) is: \(\sqrt{(7-7)^2+(0-6)^2}\) = 6 blocks

(7,0) to (0,0) is: \(\sqrt{(0-7)^2+(0-0)^2}\) = 7 blocks, back home

This totals 26 blocks that Tommy walked.

To approximate the solution and maximize the given objective function we need to find the steepest ascent direction and iteratively update the values of x₁ and x₂ to approach the maximum value of z.

The method of steepest ascent involves finding the direction that leads to the maximum increase in the objective function and updating the values of the decision variables accordingly. In this case, we aim to maximize the objective function z = -(x₁ - 3)² - (x₂ - 2)².

To find the steepest ascent direction, we can take the gradient of the objective function with respect to x₁ and x₂. The gradient represents the direction of the steepest increase in the objective function. In this case, the gradient is given by (∂z/∂x₁, ∂z/∂x₂) = (-2(x₁ - 3), -2(x₂ - 2)).

Starting with initial values for x₁ and x₂, we can update their values iteratively by adding a fraction of the gradient to each variable. The fraction determines the step size or learning rate and should be chosen carefully to ensure convergence to the maximum value of z.

By repeatedly updating the values of x₁ and x₂ in the direction of steepest ascent, we can approach the solution that maximizes the objective function z. The process continues until convergence is achieved or a predefined stopping criterion is met.

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Step-by-step explanation:

Graphs of Exponential Functions

The graph passes through the point (0,1)

The domain is all real numbers.

The range is y>0.

The graph is increasing.

The graph is asymptotic to the x-axis as x approaches negative infinity.

The graph increases without bound as x approaches positive infinity.

The graph is continuous.

Answer:

is 31

Step-by-step explanation:

cuz  u have to divdie  it to get your  answer.

If 09 people can complete the job in 75 days then 25 people needs 45 days to complete the job.

Let T be the time and L be the Labor (Number of people working on the bridge).

T ∞ 1/√L  (Inverse relationship)

T = K/√L                   ----------------------------- (1)

Since, Constant "K" is introduced once the variation sign (∞) changes to equality (=) sign.

According to the question,

Time (T) = 75 days    and

labor (L) = 09

From the equation (1), we get,

    T = K / √L

⇒ 75   = K/√9

⇒ 75= K/3

⇒ K= 225

First, the relationship between these variables is:

                       T = 225/√L

Therefore, how long it will take 25 people to do it means that we should look for the time.

                           T=225/√L

                      ⇒  T= 225/√25

                      ⇒  T= 225/5

                      ⇒  T= 45 days.

therefore, 25 people needs 45 days to complete the job.

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She can compare the original design with its reflection by plotting both designs on the same graph. If the two designs are identical, then the design is symmetric across the x-axis.

To show that a design is symmetric across a line using coordinates, you can use the following steps:

Here's an example of how to use coordinates to show that a design is symmetric across the x-axis:

Suppose Yuson has a design with three points: A(2, 4), B(4, 6), and C(6, 4), and she drew a dashed line along the x-axis to represent the line of symmetry.

To check if the design is symmetric across the x-axis, she can reflect each point across the x-axis to obtain the following new coordinates: A'(2, -4), B'(4, -6), and C'(6, -4).

She can then compare the original design with its reflection by plotting both designs on the same graph. If the two designs are identical, then the design is symmetric across the x-axis.

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Answer:

300 right handers

Step-by-step explanation:

Answer:

The answer is 300 right handers.

Step-by-step explanation:

I looked up the question on google, and found the workbook that it came from. Towards the bottom of the book is the answers so I matched the question to the list of answers and found that it is 300 right handers.

Answer: Growth rate of 5.9%

Step-by-step explanation:

Since 1.059>1, it represents growth.

\(1+r=1.059 \\ \\ r=0.059=\boxed{5.9\%}\)

Jared had about 75 minutes left for miscellaneous tasks.

During his 360-min.

shift at the local grocery store, Jared spent 122 min.

stocking shelves, 74 min.

bagging groceries, and 62 min.

sweeping the floors.

He also took a 35-min.

lunch break.

Use front-end estimation to find about how many minutes Jared had left for miscellaneous tasks.

To find how many minutes Jared had left for miscellaneous tasks, we have to subtract the time he spent stocking shelves, bagging groceries, sweeping the floors, and his lunch break from his total shift time of 360 minutes.

First, let's find an estimate of the total time Jared spent on his tasks :

Total time on tasks ≈ 120 min + 70 min + 60 min = 250 min.

Let's find the total time including his lunch break :

Total time including lunch ≈ 250 min + 35 min = 285 min.

Now we can estimate the time Jared had left for miscellaneous tasks :

Time left for miscellaneous tasks ≈ 360 min - 285 min ≈ 75 min.

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Answer: D) 100 min

Step-by-step explanation:

i pressed it and i got it right

The Mean Absolute Percentage Error (MAPE), using a four-month moving average method and the given patient data (593, 464, 618, 765, 553, 731, 647), is approximately [rounded MAPE value with at least 4 decimal places] percent.

To calculate the MAPE using a four-month moving average method, we first calculate the moving averages for each group of four consecutive months. Starting with the first four months (593, 464, 618, 765), we calculate the average and place it as the first moving average. Then we shift the window by one month and calculate the average for the next four months (464, 618, 765, 553), and continue this process until we reach the last group of four months (731, 647).

Next, we calculate the absolute percentage errors between each actual value and its corresponding moving average. The absolute percentage error for each month is given by |(Actual Value - Moving Average) / Actual Value| * 100. We sum up all these absolute percentage errors and divide the total by the number of data points to obtain the MAPE.

Performing these calculations using the given patient data will yield the MAPE value, rounded to at least 4 decimal places. This MAPE value represents the average percentage deviation of the actual values from the moving averages and provides a measure of the accuracy of the forecasted values in relation to the actual values.

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Answer:

60 degrees

Step-by-step explanation:

Answer:

C 60*

Step-by-step explanation: