Explain what it means to have a positive change, give an example.

Answer:

(x1,y1)   is  (2,7)

    (x2,y2)   is  (0,1)

Step-by-step explanation:

Points:

    (x1,y1)   is  (2,7)

    (x2,y2)   is  (0,1)

Point-slope form is:

  (y-y1) = ( (y2-y1) / (x2-x1) )(x - x1)

   y - 7 =( (-6)/(0-2) )(x-2)

   y - 7 = 3x - 6

    y = 3x + 1    [slope-intercept form]

Check:

  Is  (2,7) on the line:

       7 = 3(2) + 1   ?

       y = 7   ?yes

  Is (0,1) on the line:

       1 = 3(0) + 1   ?

       1 = 1   ?yes

The area in units of square meter is 2,090,318.4 sq cm,  under the given condition that  a house has a floor area of 2,250 square feet. So , the correct option from the following is  Option B.

To convert 2,250 square feet to square centimeters, we can use the conversion factor of 1 square foot = 929.0304 square centimeters⁵. Therefore,

2,250 sq ft = 2,250 x 929.0304 sq cm/ sq ft = 2,090,318.4 sq cm.

The area in units of square meter is 2,090,318.4 sq cm,  under the given condition that  a house has a floor area of 2,250 square feet. So , the correct option from the following is  Option B.

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Answer: -5

Step-by-step explanation:

     Slope can be found with change in y over change in x.

           \(\displaystyle \frac{y_{2} -y_{1} }{x_{2} -x_{1} }\)

     Let (10, 4) be point 1 and (2, 44) be point 2.

           \(\displaystyle \frac{y_{2} -y_{1} }{x_{2} -x_{1} }\)

           \(\displaystyle \frac{44-4}{2-10}\)

           \(\displaystyle \frac{40}{-8}\)

           \(\displaystyle \frac{40}{-8}\)

           -5

Answer:

Step-by-step explanation:

Emma is making two different kinds of cookies for a cookie party she will be attending. She needs 2 and 2/3 cups of sugar for the first recipe and 1 and 1/4 cups of sugar for the second recipe. Emma thinks she will have enough sugar but she isn't quite sure. She knows that her full 2 pound bag of sugar says it contains 4 and 1/2 cups of sugar. Determine the exact difference between the amount of sugar Emma has and the amount of sugar she needs for the recipes.) Emma's mom brought home another 2 pound bag of sugar (4 and 1/2 cups) and wants to make fudge to take to work. Her mom will need 2 and 1/6 cups of sugar. Write a numerical expression that could be used to determine exactly how much sugar will be left over from the two bags of sugar after Emma bakes cookies and her mom makes fudge

False. Each triangle in the STL file is defined by the vertices, but not necessarily by the inward pointing surface normal vector. The surface normal vector is often calculated based on the vertex positions.

False. The STL file is a mesh representation of the CAD model, and it does not contain all the information needed to fully reconstruct the original CAD model. It lacks information such as parametric features, assembly relationships, and design intent, making it difficult to recreate the exact original model.

The option "Increasing the heat exchange area for a heat exchanger" is NOT an advantage of using a lattice structure. Lattice structures are known for their lightweight properties, material-saving benefits, and simplified design and manufacturing processes.

However, increasing the heat exchange area for a heat exchanger is not typically associated with lattice structures. Heat exchangers usually rely on other design considerations, such as fin arrays or extended surfaces, to enhance heat transfer efficiency, rather than lattice structures.

Therefore, increasing heat exchange area is not a direct advantage of lattice structures.

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..no lo sé, pero como necesito puntos, ¿sí?

Answer:

c

Step-by-step explanation:

The cost of pizza and salad will be $8.54 and $2.64 respectively.

An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.

The equation will be represented as;

Let p = pizza

Let s = salad

2p + 3s = 25

3p + 2s = 30.90

Multiply equation i by 3

Multiply equation ii by 2

6p + 9s = 75

6p + 4s = 61.80

Subtract.

5s = 13.20

Divide

s = 13.20 / 5

s = $2.64

Pizza will be

2p + 3s = 25

2p + 3(2.64) = 25

2p = 25 - 7.92

p = 17.08 / 2

p = 8.54

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l

Complete question

Two groups of students went to pizza delight one group paid 25 dollars 2 pizzas and 5 salads the other group paid 30.90 dollars for 3 pizzas and 2 salads. Find the cost of the pizza and salad.

Answer: 0.9961

Step-by-step explanation:

Given: Total choices to each question = 4

So, the probability that an answer is correct = \(\dfrac{1}{4}=0.25\)

Total questions = 20

i.e. n= 20

Let x be the binomial variable that represents the number of correct answers.

So, the probability that the student has at least 10 correct answers.

\(B(x=10;n=20, p=0.25)=\sum\limits_{i=0}^{x}(i;n=20,p=0.25)\)

\(=0.9961\)  [By using cumulative binomial table]

Hence, the probability that the student has at least 10 correct answers = 0.9961

The distance between the building and the ladder is 34.876 foot.

A triangle in which one of the angle measure is equal to 90 degree is called a right triangle.

The ladder forms a right triangle with the building and the ground,

The length of the triangle is 40 foot

The angle made by the ladder is 29.32 degree

By using Trigonometric Ratios

cos 29.32 = Base /  Hypotenuse

cos 29.32 = Base / 40

0.8718 × 40 = Base

Base = 34.876 foot

Base is the distance between the building and the ladder.

Base of the ladder = 34.876 foot

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The total number of tasks Terrence completed. By substituting the value of 'x' with the number of tasks Terrence completed

The factor 'x' in the expression '90x - 20' represents the total number of tasks that Terrence completed in the game.

To understand why, let's break down the given information. It states that Shelly and Terrence completed a different number of tasks. Shelly earned 90 points on each task, so the total number of tasks she completed is not represented by 'x'.

On the other hand, Terrence's total points were 20 less than Shelly's total. This means that Terrence's total points can be calculated by subtracting 20 from Shelly's total points. Since Shelly earned 90 points on each task, her total points would be 90 multiplied by the number of tasks she completed.

So, the expression '90x - 20' represents Terrence's total points in the game, where 'x' represents the total number of tasks that Terrence completed. By substituting the value of 'x' with the number of tasks Terrence completed, we can calculate his total points.

Therefore, the correct answer is: The total number of tasks Terrence completed.

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Answer:

David

Step-by-step explanation:

cuz its davids dad

Answer:

its 90

m(PZR)=PR )

Hopefully its helpful and correct

An active vibration absorber is a device used to reduce or eliminate vibrations in a mechanical system. It consists of a mass-spring-damper system, similar to the primary system experiencing vibrations.

The key difference is that the active vibration absorber is equipped with sensors, actuators, and a control system to actively counteract the vibrations.

The control system measures the vibrations of the primary system and generates a signal that is used to drive the actuator in the absorber. The actuator applies forces to the absorber mass, which counteracts the vibrations in the primary system.

The control algorithm adjusts the amplitude and phase of the actuator forces based on the measurements and desired response to achieve effective vibration cancellation. By actively generating forces that are out of phase and of equal magnitude to the primary system's vibrations, the active vibration absorber can significantly reduce the overall vibration levels.

In conclusion, an active vibration absorber is a device that utilizes sensors, actuators, and control algorithms to actively counteract vibrations in a mechanical system. It works by generating forces that are out of phase and of equal magnitude to the vibrations in the primary system, resulting in reduced vibration levels. The specific details and calculations would depend on the configuration and parameters of the active vibration absorber being referred to in Figure 3.

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You can see that for every one grid square to the right, the graph moves two grid squares up.  Therefore the slope is 2.

To the nearest foot, the height of the flagpole is 300 feet. We can use trigonometry and the concept of similar triangles. Let's assume the height of the flagpole is h feet. The angle of elevation of the sun forms a right triangle with the flagpole and its shadow. The length of the shadow is 210 feet, and the angle of elevation is 55°.

Using the tangent function, we can set up the following equation: tan(55°) = h/210. We can solve this equation to find the value of h.

Calculating tan(55°) ≈ 1.4281, we have the equation: 1.4281 = h/210.

To solve for h, we can multiply both sides of the equation by 210: 1.4281 * 210 = h.

The approximate value of h is 300.126 feet. Rounding to the nearest foot, the height of the flagpole is 300 feet.

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Step 1: The test statistic z is approximately 1.54.
Step 2: The P-value for Ha: μ > 19 is approximately 0.0620.
Step 3: The P-value for Ha: μ ≠ 19 is approximately 0.1240.

step-1 To perform a significance test of H0: μ = 19 based on an SRS of n = 25, and assuming that σ = 13, follow these steps:

Calculate the test statistic z for x = 23 to 2 decimal places.

z = (x - μ) / (σ / √n)
z = (23 - 19) / (13 / √25)
z = (4) / (13 / 5)
z = 4 / 2.6
z ≈ 1.54

step-2 Determine the P-value for Ha: μ > 19 to 4 decimal places.

To find the P-value, use a z-table or an online calculator to find the probability that z > 1.54. The P-value = 1 - P(z ≤ 1.54).

P-value ≈ 1 - 0.9380

P-value ≈ 0.0620

step-3 Determine the P-value for Ha: μ ≠ 19 to 4 decimal places.

For a two-tailed test, double the P-value calculated in Step 2:

P-value (two-tailed) ≈ 2 × 0.0620

P-value (two-tailed) ≈ 0.1240

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Ashley used 8/25 of the spool for her project.

To determine the fraction of the spool that Ashley used for her project, we need to multiply the fraction of the spool she had (4/5) by the fraction she used (2/5):

(4/5) * (2/5) = 8/25

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Answer:

C: 2

Step-by-step explanation:

count up 2 from the point (0,3) and over 1 to get to the point (1,5) to get 2/1 or 2. This method is the rise/run method. You rise up 2 units and over 1 unit from each point.

Answer:

slope = 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (0, 3) and (x₂, y₂ ) = (1, 5) ← 2 points on the line

m = \(\frac{5-3}{1-0}\) = \(\frac{2}{1}\) = 2

To evaluate 8 log16, we need to understand the properties of logarithms. In this case, we have a logarithm with base 16.

The logarithm of a number to a given base tells us the exponent to which the base must be raised to obtain the number. In this case, we need to find the exponent to which 16 must be raised to obtain the number 8.

Since 16 to the power of 1 is equal to 16, we know that log16(16) = 1. Therefore, log16(8) is a number between 0 and 1.

To simplify further, we can express 8 as a power of 16. We know that 16 to the power of 2 is equal to 256. Since 8 is half of 16, it can be written as 16 to the power of 2 divided by 2. Therefore, 8 can be expressed as 16^(2/2).

Now, we can use the logarithmic property that states log_b(x^y) = y * log_b(x). Applying this property, we have:

8 log16 = (16^(2/2)) log16 = (16^1) log16 = 16 * log16

Since we know that log16(16) = 1, we can substitute it in:

8 log16 = 16 * 1 = 16

Therefore, the value of 8 log16 is 16.

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Answer:

y=6x-8

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept.

Answer:

10.6 =c

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2

7^2 + 8^2 = c^2

49+ 64 = c^2

113 = c^2

Taking the square root of each side

sqrt(113) = sqrt(c^2)

10.63014581=c

To the nearest tenth

10.6 =c

Answer:

The length of C is 10.6

Hope this help!

918.75

Step-by-step explanation:

875 = 100%

43.75 = 5%

\( \frac{875 \times 5}{100} = 43.75\)

therefore selling price is 875+ 43.75 = 918.75

Answer:

918.75

Step-by-step explanation:

the 5% of 875 is 43.75 add it up to 875 the answer is 918.75

The value of x and y in the right triangle are as follows:

x = 6 units

y = 6√3 units

A right angle triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.

Therefore, let's find the value of x and y in the right triangle. Using trigonometric ratios,

sin 60 = y / 12

√3 / 2 = y / 12

cross multiply

2y =12√3

y = 12√3 / 2

y = 6√3

Therefore, let's find x as follows:

cos 60 = adjacent / hypotenuse

1 / 2 = x / 12

cross multiply

12 = 2x

divide both sides by 2

x = 12 / 2

x = 6

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The required answer is the equation of the tangent line to the function at the point (2, f(2)) = (2, 4) is y = 6x - 8.

To find the equation of the tangent line to the function at the point (2, f(2)) = (2, 4), we need to first find the derivative of the function at x = 2.
Assuming we have the original function loaded in content, we can find the derivative as follows:
f(x) = x^2 + 2x
f'(x) = 2x + 2

The tangent line touched the a curve can be made more explicit by considering the sequence of straight lines passing through two points, A and B, those that lie on the function curve. The tangent at is the limit when points ,approximates or tends .

If two circular arcs meet at a sharp point  then there is no uniquely defined tangent at the vertex because the limit of the progression of secant lines depends on the direction in which "point B" approaches the vertex.

The existence and uniqueness of the tangent line depends on a certain type of mathematical smoothness, known as "differentiability."
Now we can plug in x = 2 to find the slope of the tangent line at that point:
f'(2) = 2(2) + 2 = 6
So the slope of the tangent line is m = 6.
To find the y-intercept (b) of the tangent line, we can use the point-slope form of a line:
y - y1 = m(x - x1)
Plugging in the point (2, 4) and the slope we just found, we get:
y - 4 = 6(x - 2)
Simplifying and solving for y, we get the equation of the tangent line in slope-intercept form:
y = 6x - 8
Therefore, the equation of the tangent line to the function at the point (2, f(2)) = (2, 4) is y = 6x - 8.

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Answer:

Always the product of any number and zero will be zero.

Step-by-step explanation:

Answer: Always the product of any number and zero will be zero.

HOPE THIS ANSWER HELPS YOU....

Answer:

Step-by-step explanation:

To find the cost of 1 pound of bananas we use ratio and proportion

From the question

3 pounds of bananas costs $7

Then 1 pound will cost

\( \frac{7 \times 1}{3} = \frac{7}{3 } \\ = 2.33333...\)

We have the final answer as

Hope this helps you