Please help, would like to know how to do it aswell as getting the answers

Answer:

3 = -2m + 6

-2m = -3, so m = 3/2

y = (3/2)x + 6

Answer: y=6x+15

Step-by-step explanation:

Formula for point-slope (you were given a point and the slope)

\(y-y_{1} =m(x-x_{1} )\)

where m is your slope

\((x_{1} ,y_{1} )\) is your point

y-3=6(x-(-2))      plug in and simplify the negative in the parentheses

y-3=6(x+2)        distribute

y-3=6x+12         add 3 to both sides

y=6x+15            this is your answer in slope-intercept form

Answer:

14. x = 6, y = 8

15. x = 5, y = 7

16. x = 7, y = 10

Step-by-step explanation:

For a parallelogram, the length across the point of intersection of its diagonals are equal.

So that;

14. PT = TR

    QT = TS

So that,

2x = y + 4

2x - y = 4 ...........1

x + 2 = y

x - y = -2 ............. 2

subtract equation 2 from 1,

x = 6

substitute the value of x in equation 1,

2 x 6 - y = 4

y = 12 - 4

  = 8

x = 6, y = 8

15. PT = TR

    QT = TS

x + 2 = y

x - y = -2 .......... 1

2x = y + 3

2x - y = 3 ......... 2

Subtract equation 1 from 2

x = 5

substitute the value of x in equation 1

5 - y = -2

5 + 2 = y

y = 7

x = 5, y = 7

16. PT = TR

    QT = TS

y = x + 3

x - y = -3 ......... 1

2y = 3x -1

3x - 2y = 1 ......... 2

Multiply equation 1 by 2 to have;

2x - 2y = -6 ....... 3

subtract equation 3 from 2

x = 7

substitute the value of x in equation 1

7 - y = -3

-y = -7 -3

-y = -10

multiply through by minus

y = 10

x = 7, y = 10

Answer:

196.1 cm^2

Step-by-step explanation:

The area of a circle is given by Area = πr^2

R is (15.8 cm)/2 = 7.9 cm

Area = (3.14)*(7.0cm)^2

Area = 196.1 cm^2

Answer:

The formula to calculate the area of a circle is given by: A = π * r^2, where r is the radius of the circle.

Given the diameter of 15.8 cm, we can calculate the radius by dividing the diameter by 2: r = 15.8 cm / 2 = 7.9 cm

Plugging the value of the radius into the formula: A = π * 7.9^2 = 3.14 * 62.41 = 196.0794 cm^2

Rounding the answer to the nearest hundredth, the area of the circle with a diameter of 15.8 cm is approximately 196.08 cm^2.

Answer:

20

Step-by-step explanation:

Answer: the expression (x+8)(2x - 10) can be expressed as the trinomial 2x^2 + 6x - 80

Step-by-step explanation:

To express the expression (x+8)(2x - 10) as a trinomial, we need to simplify the product by multiplying the terms.

Using the distributive property, we can expand the expression as follows:

(x + 8)(2x - 10) = x(2x) + x(-10) + 8(2x) + 8(-10)

Simplifying further:

= 2x^2 - 10x + 16x - 80

Combining like terms:

= 2x^2 + 6x - 80

If the composite figure consists of of a cube of side length 6cm and a hemisphere of radius 3cm , then the surface area of composite figure is  \(236.52 \; cm^{2}\) .

The Composite Figure consists of a Cube and Hemisphere ;

the radius of the hemisphere is given as = 3 cm ;

So, formula for curved surface area of hemisphere is = \(2\pi r ^{2}\) ;

= \(2\pi 3 ^{2}\) = \(56.52cm^{2}\) ;

the side length of the cube is = 6cm ;

only the area of the 5 sides will be calculated because on one side there is a hemisphere ;

Surface Area of Cube = \(5a^{2}\)

= \(5\times 6^{2}\) ;

= \(5 \times 36\) = \(180 \; cm^{2}\) .

So , the surface area of the composite figure = Area of hemisphere + area of 5 sides cube ;

Substituting the areas ,

we get ;

= \(56.52 + 180\) ;

= \(236.52 \; cm^{2}\) .

Therefore, Surface Area of given composite figure is \(236.52 \; cm^{2}\) .

The given question is incomplete , the complete question is

Explain how to find the surface area of the composite figure that consists of a cube of side length 6cm and a hemisphere of radius 3cm .

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Answer:

linear equations;15m+10=w

15 pages written for every month for 5 months plus the 10 pages she has already written is equal to the total number of pages written in 5 months m=number months written in this case it is 5 months.

w=number of pages written in 5 months 15(5)+10=w

75+10=w

85 Pages written=w

will have written 85 Pages in 5 months

Answer:

\(1\frac{1}{2}\) or 1.33%

Step-by-step explanation:

The least common denominator for the given fractions is (x+6)(x-2). Therefore, the correct answer is option B.

The given expression is \(\frac{x}{x^2+4x-12}-\frac{3}{x+6}\) and the least common denominator is (x+6)(x-2).

When two or more fractions have the same denominators, they are termed as the common denominators. The least common denominator (LCD) refers to the smallest number that is a common denominator for a given set of fractions.

Here, \(\frac{x}{x^2+6x-2x-12}-\frac{3}{x+6}\)

\(=\frac{x}{x(x+6)-2(x+6)}-\frac{3}{x+6}\)

\(=\frac{x}{(x+6)(x-2)}-\frac{3}{x+6}\)

Here, least common denominator is (x+6)(x-2)

\(=\frac{x}{(x+6)(x-2)}-\frac{3(x-2)}{(x+6)(x-2)}\)

Therefore, the correct answer is option B.

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"Your question is incomplete, probably the complete question/missing part is:"

Kelvin found that the least common denominator needed to subtract \(\frac{x}{x^2+4x-12}-\frac{3}{x+6}\) is is (x+6)(x-2). Which is the correct next step?

A) \(\frac{x-3}{x^2+3x-18}\)

B) \(\frac{x}{(x+6)(x-2)} - \frac{3(x-2)}{(x+6)(x-2)}\)

C)  \(\frac{x}{(x+6)(x-2)} - \frac{3(x+2)}{(x+6)(x-2)}\)

D) \(\frac{x(x+6)(x-2)}{(x+6)(x-2)} - \frac{3(x+6)(x-2)}{(x+6)(x-2)}\)

Answer:

A. 9.85 units

Step-by-step explanation:

If the null hypothesis is rejected, and the proportion of customers willing to pay more is significantly different from 10%, this would support my hypothesis that customers are willing to pay more for eco-friendly packaging.

Let's say you work for a company that has been using a certain type of packaging material for their products. However, there have been concerns raised about the environmental impact of this material, and the company is considering switching to a more eco-friendly option. You believe that customers would be willing to pay more for products that are packaged with the eco-friendly material, but you need to test this hypothesis.

Variable: The variable that would be tested is whether customers are willing to pay more for products that are packaged with the eco-friendly material.

Guess of value: I would guess that customers would be willing to pay more for eco-friendly packaging, but I'm not sure how much more. Let's say my guess is that customers would be willing to pay 10% more for products packaged with the eco-friendly material.

Hypothesis test: To test this hypothesis, I would conduct a survey where I randomly select a sample of customers and ask them if they would be willing to pay more for products packaged with the eco-friendly material. I would then compare the proportion of customers who are willing to pay more to my guess of the value (10%).

Null hypothesis: The null hypothesis would be that the proportion of customers willing to pay more for eco-friendly packaging is not significantly different from 10%.

Alternative hypothesis: The alternative hypothesis would be that the proportion of customers willing to pay more for eco-friendly packaging is significantly different from 10%.

 If the null hypothesis is not rejected, this would suggest that customers are not willing to pay more for eco-friendly packaging, and the company may need to reconsider their decision to switch to the more expensive material.

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The break-even point is the level of output at which total revenue (TR) equals total cost (TC). In this case, with TR(x) = 20x and TC(x) = 120 + 10x, we need to find the value of x where TR(x) = TC(x).

To find the break-even point, we set TR(x) equal to TC(x) and solve for x.
TR(x) = TC(x) can be expressed as:
20x = 120 + 10x
Simplifying the equation, we combine like terms:
20x - 10x = 120
10x = 120
To isolate x, we divide both sides of the equation by 10:
x = 12
Therefore, the break-even point occurs when x is equal to 12. At this level of output, the total revenue is equal to the total cost.

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The correct answer should be 32.

To simplify the expression (4 + 3i)(2 - 8i), we can use the distributive property of multiplication.

First, we multiply the real parts of the two complex numbers:

(4)(2) = 8.

Next, we multiply the imaginary parts of the two complex numbers:

(3i)(-8i) = -24i^2.

Remember that i^2 is defined as -1, so we can substitute -1 for i^2:

-24i^2 = -24(-1) = 24.

Now, we combine the real and imaginary parts:

8 + 24 = 32.

Therefore, the simplified expression is 32.

Since none of the given answer choices match the simplified expression, it appears that there may be an error in the options provided. The correct answer should be 32.

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∛128 is  the radius r and height h of the cylinder with minimal surface area .

What is Surface Area?

       V = πr²n

   128π = πr²n

        n = 128/r²

s = 2πrn + 2πr²

s = 2πr 128/r² +  2πr²

s = 256π/r + 2πr²

ds/dt = - 256π/r²  + 2πr

d²s/dt² = -256/(-2) r³ + 2π

d²s/dt² = 128/r³ + 2π

for maxima or minima

ds/dt = 0

- 256 π/r² + 2πr = 0

256 = 2r³

 r = ∛128

d²s/dt² = 128/(∛128)³  + 2π

           = 2π + 1

d²s/dt² > 0

so surface area is minimum

         a + r  = ∛128

  n = 128(∛128)²

   n = ∛128

r = ∛128  ,  n= ∛128

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Answer:

Part 1:

Revenue divided by number of posts

Revenue divided by total number of words

Part 2:

No. The definitions have opposite results.

Step-by-step explanation:

When you divide revenue by total number of words remember to do words*posts to get total.

Example: $30000/100*110 = 2.72

Answer:

Coffee Beans to Go is cheaper, selling coffee at $4.75 per pound.

Step-by-step explanation:

The graph is cruddy and hard to see but! when you go to 2 pounds and then up the the cost, it's $9.50. 9.50/2= 4.75. kapeesh??

Answer:

3,999,960

Step-by-step explanation:

1)let me take an example, the sum of all the digits numbers can be formed using the 1,2 without repetition.

(12, 21 ) , The sum is 12+21= 33

2)Another one, the sum of all the digits numbers, can be formed using three digits 1,2,3, without repetition.

(123,231,321,213,312,132) Their sum is by adding and is 1332

For the above example, we can find the answer by using the formula.

(n-1)! x sum of the digits x ( 111111111….n times)

For example, 1)

n = 2, the sum of the digits 2+1= 3

(2–1)! x3 (11)

1x 3 x 11= 33

For example 2

n= 3 sums of the numbers 1+2+3 = 6

(3–1)! x 6( 111)

2x1x6x111

12x111= 1332

Both answers verified

For the given question

n= 5 , sum of the digits 1+2+3+4+5=15

(5–1)! x 15 x 11111

4! x 15 x 11111

4 x 3 x x2 x 15 x 11111

24 x 15 x 11111

360 x 11111= 3999960

Answer: 3999960

The largest open interval on which f is the antiderivative for f is called the indefinite integral of f, and it is denoted by ∫f(x)dx. This interval can be determined by finding all the antiderivatives of f and then taking the union of their domains. Note that the antiderivative of f is not unique, as it can differ by a constant, so the indefinite integral of f is only determined up to an arbitrary constant.
To find the largest open interval on which a function f is the antiderivative for f', we'll first need to know the function f' (the derivative of f). However, you didn't provide the function f' in your question.

To give you a general idea of how to approach this problem, follow these steps:

1. Given the function f'(x), find the critical points by setting f'(x) equal to 0 and solving for x.
2. Determine the intervals based on the critical points.
3. Check the behavior of f'(x) in each interval to see where it's continuous and increasing.
4. The largest open interval on which f is the antiderivative for f' will be the interval in which f'(x) is continuous and increasing.

If you provide the function f'(x), I can help you find the largest open interval for the antiderivative.

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The quotient of (2x4 – 3x3 – 3x2 7x – 3) ÷ (x2 – 2x 1) is 2x² + x – 3.

A quotient is a quantity produced by the division of two numbers.

The quotient is most frequently encountered as two numbers, or two variables, divided by a horizontal line. The words "dividend" and "divisor" refer to each individual part, while the word "quotient" refers to the whole.

For example when 8 is divided by 2, the result obtained is 3. Thus, the quotient is 4.

To determine the quotient when (2x4 – 3x3 – 3x2 + 7x - 3) is divided by (x2 - 2x + 1), we'll apply the long division method as shown below:

              2x² + x – 3

x² - 2x + 1|2x⁴ – 3x² – 3x² + 7x - 3

              –(2x⁴ – 2x³ + 2x²)

                 x³ – 5x² + 7x – 3

              –(x³ – 2x² + x)

             –3x² + 6x – 3

            –(3x² + 6x – 3)

                    0

Thus, the quotient is 2x² + x – 3.

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Answer:

Is it $150?

Step-by-step explanation:

Step 1: Add it all together

5 + 10 + 30 + 100 + 5

All adds up to 150.

Probably got it wrong though haha.

To transform the regression equation, you would divide both sides of the equation by the square root of Var(ut), which is σ√(zt). This transformation helps in obtaining the transformed regression coefficients and standard errors that account for the heteroscedasticity in the error term.

When the variance of the error term (ut) is related to a known variable (zt), it implies the presence of heteroscedasticity in the regression model. Heteroscedasticity means that the variability of the error term is not constant across different levels of the independent variables.

To address this issue, we can transform the regression equation by dividing both sides by the square root of the variance of the error term, which is σ√(zt). This transformation is known as the weighted least squares (WLS) estimation.

By dividing both sides of the equation, we can obtain the transformed regression equation with the error term divided by its standard deviation. This transformation accounts for the heteroscedasticity by giving different weights to the observations based on the variability of the error term. It allows for a more appropriate estimation of the regression coefficients and standard errors, as it gives more weight to observations with smaller error variances and less weight to observations with larger error variances.

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Step-by-step explanation:

x² - 9

1. There is no common factor other than 1.

2. √x² = x; √9 = 3

3. a = x; b = 3

4. x² - 9 = (x - 3)(x + 3)

Answer:

(3,-2)

Step-by-step explanation:

(0,-2)

you move 3 right

you change the x-axis

(3,-2)

Answer:

(3, -2)

There you go!! rlly hope this helps!!

Answer:

Hey,Nothing is there.

Step-by-step explanation:

Answer:

The final answer is D

Step-by-step explanation:

Easy.

The perimeter of the polygon is found as the 42 cm.

For the shown polygon:

Points A, B, C and D are tangents on the circle.

Thus, these tangent will subtend equal length from the points.

So,

AB = 3 + 4 = 7 cm

BC = 4 + 5 = 9 cm

As, ∠B ≅ ∠D, sides must also be equal.

CD = 5 + 4 = 9 cm

DA = 4 + 3 = 7 cm

Perimeter = AB + BC + BC + BC

                 = 7 + 9 + 9 + 7

Perimeter = 42 cm

Thus, the perimeter of the polygon is found as the 42 cm.

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