Please help need the answer asap!!

To find the value of c plus d, we need to determine the solutions of the quadratic equation. By using the quadratic formula or factoring the equation, we can find the values of c and d and then calculate their sum.

The quadratic equation is typically in the form a\(x^2\) + bx + c = 0, where a, b, and c are constants. Without knowing the specific quadratic equation mentioned in the query, it is not possible to provide the exact values of c and d. However, the solutions of a quadratic equation can be found using the quadratic formula:

x = (-b ± √(\(b^2\) - 4ac)) / (2a)

Once the values of c and d are determined, their sum can be calculated by adding them together. The sum of c plus d will depend on the specific values obtained from solving the quadratic equation.

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Answer:

Remove parentheses.

7x−30+6x−10

Add 7x and 6x.

13x−30−10 Subtract 10 from −30.

13x−40 => x = 40/13

Step-by-step explanation:

The point- slope form of the line is y-5 = -0.25(x+6).

What is line?

A line is an one-dimensional figure. It has length but no width. A line can be made of a set of points which is extended in opposite directions to infinity. There are straight line, horizontal, vertical lines or may be parallel lines perpendicular lines etc.

A line with a slope of –1/4 passes through the point (–6,5)

Any line in point - slope form can be written as

y - y₁= m(x -x₁) -------(1)

where,

y= y coordinate of second point

y₁ = y coordinate of first point

m= slope of the line

x= x coordinate of second point

x₁ = x coordinate of first point

In the given problem (x₁ , y₁) = (-6,5) and m= -1/4

Putting all these values in equation (1) we get,

y-5= (-1/4) (x- (-6))

⇒ y-5 = -0.25(x+6)

Hence, the point- slope form of the line is y-5 = -0.25(x+6).

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The price of the two pencils is Rs.100 (expensive) and Rs.60 (cheaper).

Let the price of the expensive pencil be = x

And the price of the cheaper one be = y.

According to the question:

The difference between the price of 2 = 40

Therefore,

x- y =40

Total amount = 1800.

The number of Expensive pencils that can be bought = 1800/x.

The number of Expensive pencils that can be bought = 1800/y.

According to the question,

1800/y -1800/x = 15 (the number of extra pencils)

= (1800x -1800y)/xy = 15

= 1800x -1800y =15xy

= 1800 (x-y) =15xy

Substituting x-y as 40

1800 x 40 =15xy

xy = 4800.

We know that x-y =40

Therefore, x = y+ 40

xy = 4800

(y+40) y = 4800

\(y^{2}\) + 40 y = 4800

Using the quadratic equation formula,

y = 52.111 or y = -92.111

Thus, the cost of the cheaper pencil (y)= Rs. 52.111

The cost of the expensive pencil (x) = 52.111 + 40 = Rs 92.111

Therefore the cost of two pencils is =   Rs. 52.111 and Rs 92.111.

Answer:

D. 5 4/9

Step-by-step explanation:

Ignore the whole numbers for now and just pay attention to the fractions. All the fractions have the same denominator, so add the numerators like you would any other numbers.

1-2 = -1

-1 + 5 = 4

So that gives you 4/9.

Add the whole numbers to get 5.

5 4/9

Using the rational equation it would take 40 minutes to finish the job if Mr. Koger used only the new machine.

So, option B: 40 minutes is the correct option.

Equations with variables in the denominators of rational expressions are referred to as rational equations.

The given rational equation to model the situation is -

1/m+1/(m+80)=1/30

On simplifying -

30m+30(m+80)=m(m + 80)

30m+30m+240=m^2+80m

-20m+240=m^2

-m^2-20m+240=0

On factorizing the equation -

-m^2-60m+40m+240=0

-m(m+60)+40(m+60)=0

(-m+40)(m+60)

-m=-40, m=-60

m=40, m=-60

Since, time cannot be negative so the value m=40 is the correct value.

Therefore, the time taken by new machine is 40 minutes.

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\( \huge \boxed{\mathfrak{Question} \downarrow}\)

\(3 x ^ { 2 } y - 9 x y ^ { 2 } + 12 x ^ { 3 } y ^ { 2 }\)

\( \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}\)

\(3 x ^ { 2 } y - 9 x y ^ { 2 } + 12 x ^ { 3 } y ^ { 2 }\)

Factor out \(3\).

\(3\left(x^{2}y-3xy^{2}+4x^{3}y^{2}\right) \)

Consider \(x^{2}y-3xy^{2}+4x^{3}y^{2}\). Factor out \(xy\).

\(xy\left(x-3y+4x^{2}y\right) \)

Rewrite the complete factored expression.

\( \boxed{ \boxed{ \bf \: 3xy\left(x-3y+4x^{2}y\right) }}\)

So the coefficient of determination is 0.476 or 47.6%. This means that 47.6% of the total variation in the dependent variable can be explained by the independent variable(s) in the regression model.

The coefficient of determination (R-squared) is the proportion of the total variance in the dependent variable that is explained by the independent variable(s). It is calculated as the ratio of the sum of squares due to regression (SSR) to the total sum of squares (SST).

R-squared = SSR / SST

In this case, SSR = 11.06 and SST = 23.22. Therefore,

R-squared = SSR / SST = 11.06 / 23.22 = 0.476

The remaining 52.4% is due to other factors not included in the model.

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SAKHDSKGgsgdyasygudayf

\(\frac{3}{4} +\frac{1}{6} =\frac{18}{24} +\frac{4}{24} =\frac{22}{24}\)

but 22/24 can be reduced to:

\(\frac{22}{24} =\frac{11}{12}\)

A research study variable that is believed to be related to the study's variable of interest is accurately described by each of the following terms except dependent.

Any variable employed in research that has a cause and effect relationship is referred to as a research variable (also known as a study variable) informally. An array of variables, including independent factors, dependent variables, and intervening variables, can be employed in a study, including research/study variables.

Independent and dependent variables are crucial in research since they provide the framework for a study to be carried out. Confounding factors, controlled variables, superfluous variables, and moderator variables are some other sorts of variables that could be used in a research.

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Answer:

Step-by-step explanation:

Let the number be 'x'

Half a number = \(\frac{1}{2}x\)

Half a number increased by the quotient of p and t

\(\frac{1}{2}x+\frac{p}{t}\)

Answer:

q6 - 14

q7 - 165g

q8 - 4935

Step-by-step explanation:

q6 -

211 ÷ 16 = 13.1875

so 14 is the smallest whole number

q7 -

each interval equals 5g

q8 -

4 and 9 are square numbers

so now we need two prime numbers

the prime numbers under 10 are:

2,3,5 and 7

the number also has to be divisible by 5 meaning it needs to end in 5 or 0

0 is not a part of any of the numbers that are left so it has to end in five

out of all of the combinations of the numbers, 4935 is the only one that is divisible by 3 and 5

Answer:

-23

Step-by-step explanation:

Remember Bedmas/Pedmas

P/B = Bractets or parentheses ( )

E = Exponents 3⁵

D = Division ÷

M = Multiply ×

A = Addition

S = Subtract

(4x1)+6-9x3-6

4+6-(9×3)-6

(4+6)-27-6

(10-27)-6

-17-6

-23

Answer:

The answer to the first question is -600

The answer to the second question is -18

Step-by-step explanation:

The car corporation produced 600 fewer cars this month so it's negative -600

The temperature fell by 18 degrees Fahrenheit, so its negative -18

Answer:

Step-by-step explanation:

what?

Answer:

Sarah would take 35 minutes longer than Leo to type 5500 word essay

Step-by-step explanation:

Let us solve the question

∵ It took Leo 3 hours to type a 4125-word essay

→ The rate is the number of words divided by the time

∴ Leo's rate = 4125 ÷ 3 = 1375 words/hour

∵ Sarah typed her 3800-word essay in 3 hours and 10 minutes

→ Change the 10 min to the hour by divide it by 60

∵ 3 hours 10 min = 3 + \(\frac{10}{60}\) = 3 + \(\frac{1}{6}\)  = 3\(\frac{1}{6}\) hours

∴ Sarah's rate = 3800 ÷ 3\(\frac{1}{6}\)  = 1200 words/hour

∵ Leo will type a 5500-word essay

→ Divide it by his rate to find the time taken

∴ Leo takes = 5500 ÷ 1375 = 4 hours

∵ Sarah will type a 5500-word essay

→ Divide it by her rate to find the time taken

∴ Sarah takes = 5500 ÷ 1200 = 4\(\frac{7}{12}\) hours

→ Find the difference between their times

∵ The difference = 4\(\frac{7}{12}\) - 4 = \(\frac{7}{12}\) hour

→ Multiply it by 60 to change to minutes

∴ The difference = \(\frac{7}{12}\) × 60 = 35 minutes

∴ Sarah would take 35 minutes longer than Leo to type 5500 word essay

Answer: it is B. 39t + 54

Step-by-step explanation:

9(4t + 6) + 3t --- (distribute the 9 to 4t and 6 (9(4t) + 9(6))

36t + 54 + 3t --- (combine like terms, 36t + 3t)

39t + 54

Therefore , the solution of the given problem of angle comes out to be ∠1 ≅ ∠4, and ∠3 ≅ ∠5 are different interior angles they are congruent.

The circular lines that make up a skew's extremities are divided using Cartesian coordinates by the walls at the top and bottom. A junction point may result from the convergence of two beams. Angle is another outcome of two things colliding. They mirror dihedral shapes the most. A two-dimensional curve can be created by arranging two line beams in various ways at their extremities.

Here,

The right response is:

=> C. The following are true: ∠1 ≅ ∠4, and ∠3 ≅ ∠5.

Alternate Interior Angles Theorem is the cause.

This is due to the Alternate Interior Angles Theorem, which asserts that the alternate interior angles are congruent if a transversal intersects two parallel lines.

As can be seen, in this instance, ∠1 ≅ ∠4, and ∠3 ≅ ∠5 are different interior angles, and as such, they are congruent.

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Pareto distribution is a member of a scale family referring fixed values of the shape parameter, it is trivially closed under scale transformations.

The Pareto distribution is a power-law probability distribution used in description of social, quality control, scientific, geophysical, actuarial, and many other types of observable phenomena. It was initially applied to demonstrate the distribution of wealth in a society, fitting the trend that a large portion of wealth is held by a small fraction of the population. The pareto principle or 80-20 rule states that 80% of outcomes are due to 20% of causes. Pareto distribution is a member of the scale family distribution which is parameterized by a scale parameter. The larger the scale parameter, the more spread out the distribution.

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The type of sampling used in this scenario is B. Stratified sampling. Stratified sampling involves dividing the population into distinct subgroups or strata and then selecting samples from each subgroup.

In this case, Miranda divides her day into three parts: morning, afternoon, and evening. Each part of the day represents a stratum or subgroup.  Miranda measures her breathing rate at 4 randomly selected times during each part of the day. This means she is taking samples from each of the three strata (morning, afternoon, and evening) and collecting data from within those subgroups.

By using stratified sampling, Miranda ensures that her samples represent the different parts of her day in a proportional and systematic manner, allowing her to capture potential variations in her breathing rate throughout the day.

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The solution to the equation x - 8x - 11x + 7 = 1 - 3(5 + 2x) is x = 7/4.

To solve algebraically for x in the equation x - 8x - 11x + 7 = 1 - 3(5 + 2x), we first need to simplify both sides of the equation using the distributive property, combining like terms, and isolating the variable x on one side of the equation.

Starting with the left-hand side of the equation, we can combine the terms with x:

x - 8x - 11x + 7 = -18x + 7

Moving to the right-hand side of the equation, we can distribute the -3:

1 - 3(5 + 2x) = 1 - 15 - 6x = -14 - 6x

Now we have the simplified equation:

-18x + 7 = -14 - 6x

To isolate x on one side of the equation, we can add 18x to both sides and add 14 to both sides:

-18x + 7 + 18x + 14 = -14 - 6x + 18x

Simplifying both sides, we get:

21 = 12x

Finally, we can solve for x by dividing both sides by 12:

21/12 = x

Simplifying the fraction, we get:

x = 7/4

Therefore, the solution to the equation x - 8x - 11x + 7 = 1 - 3(5 + 2x) is x = 7/4.

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Answer:

30 miles.

Step-by-step explanation:

To calculate distance traveled, you multiply the miles per hour by the number of miles. In this problem, it is 20 times 1.5 or 20 times 1 1/2. This equals 30 miles per hour.

Answer:

Step-by-step explanation:

y = k x

Total cost = y

number of pounds = x

constant = 0.59

Equation

y = 0.59 x

The tree should be 22.5 feet tall in the mural.

To determine the height of the tree in the mural, we can set up a proportion based on the scale ratio between Devon's height and the height of the tree.

Let's denote the height of the tree in the mural as 'x'.

According to the given information:

Devon's actual height: 6 feet

Devon's height in the mural: 4.5 feet

Tree's actual height: 30 feet

Setting up the proportion:

(Devon's height in the mural) / (Devon's actual height) = (Tree's height in the mural) / (Tree's actual height)

Substituting the given values:

4.5 feet / 6 feet = x / 30 feet

To solve for 'x', we can cross-multiply:

4.5 feet * 30 feet = 6 feet * x

135 feet = 6x

Divide both sides by 6:

x = 135 feet / 6

Simplifying the division:

x = 22.5 feet

Therefore, in the painting, the tree should stand 22.5 feet tall.

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Answer:

Yes

Step-by-step explanation:

2B+B=3b and 3b and 3b are the same.

Thus, they have the same value

Answer:

The answer is either 21 or 22

Step-by-step explanation:

good luck! have a great day! :)

Answer:

a. (0,-6) and (8,0)

b. \(m = 3/4\)

c. \(y = 3x/4 - 6\)

Step-by-step explanation:

Given

\(3x - 4y = 24\)

Solving (a): Two solutions

To determine the solutions of the equation, we assume values for x and y.

First: Let, x = 0

Substitute 0 for x in the equation

\(3x - 4y = 24\)

\(3(0) - 4y = 24\)

\(- 4y = 24\)

Divide  both sides by -4

\(y = 24/-4\)

\(y = -6\)

So, one solution is (0,-6)

To determine another solution, we assume that y = 0

Substitute 0 for y in the equation

\(3x - 4y = 24\)

\(3x -4(0) = 24\)

\(3x = 24\)

Divide both sides by 3

\(x = 24/3\)

\(x = 8\)

So, another solution is (8,0)

Solving (b): The slope of the equation

We have to get the equation in the form: \(y = mx + b\)

Where

\(m = slope\)

\(3x - 4y = 24\)

Subtract 3x from both sides

\(3x - 3x - 4y = 24 - 3x\)

\(- 4y = 24 - 3x\)

Divide both sides by -4

\(y = 24/-4 - 3x/-4\)

\(y = -6 + 3x/4\)

\(y = 3x/4 - 6\)

By comparison,

\(m = 3/4\)

Hence:

\(Slope = 3/4\)

Solving (c): Slope intercept form

This has been solved in (b) above

\(y = 3x/4 - 6\)