Please help please. P

The solution to the polynomial is x = -1, x = 1/2 and x = -1

From the question, we have the following parameters that can be used in our computation:

2x³ - x² - 2x + 1

Expand

2x³ - x² - 2x + 1 = 2x³ - x² - 2x + 1

Factorize the expression

This gives

2x³ - x² - 2x + 1 = x²(2x - 1) - 1(2x - 1)

Factor out 2x - 1

2x³ - x² - 2x + 1 = (x² - 1)(2x - 1)

Express x² - 1 as difference of two squares

2x³ - x² - 2x + 1 = (x - 1)(x + 1)(2x - 1)

So, we have

(x - 1)(x + 1)(2x - 1) = 0

Solve for x

x = 1, x = -1 and x = 1/2

Reorder the solutions

x = -1, x = 1/2 and x = -1

Hence, the solution is x = -1, x = 1/2 and x = -1

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Answer:

Step-by-step explanation:

20

An algebraic expression to represent the absolute difference is |d - 24|.

The algebraic expression to represent the absolute difference between varying values of the depth of the hole (d), and the ideal depth of the hole (24 inches), also known as the margin of error, is:

|d - 24|

The vertical bars denote the absolute value, which gives the magnitude of the difference between d and 24, regardless of whether d is greater than or less than 24. The resulting value represents the distance between the actual depth of the hole and the ideal depth of 24 inches. This margin of error is an important concept in various fields, such as engineering, construction, and manufacturing, as it helps to determine the accuracy and precision of measurements and designs.

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The value of the probability of choosing a green lollipop and a purple lollipop is, 8 / 45

We have to given that;

One bag contains 3 red lollipops and 2 green lollipops.

And, The other bag contains four purple lollipops and five blue lollipops.

Hence, The probability of choosing a green lollipop is,

P₁ = 2 / 5

And, The probability of choosing a purple lollipop is,

P₂ = 4 / 9

Thus, The value of the probability of choosing a green lollipop and a purple lollipop is,

P = P₁ ×  P₂

P = 2/5 × 4/9

P = 8/45

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A function is a group of components or inputs that have a relationship and produce an outcome. A function's inverse is the function's opposite. When a function's inverse is applied, its domain changes to its range, and conversely.

The core of calculus in math is the concept of functions. The unique types of connections are the ones with functions. Mathematical functions are represented as a rule that, for each input x, produces a distinct result.

As per the question, the relationship between a function and its inverse will be:

1. A group of elements or inputs that are related to one another and produce an output is referred to as a function.

2. A function's reverse is called a function's inverse.

3. When a function is inverse, the domain becomes the range, and vice versa.

4. The graphs of the two concepts—function and inverse—will resemble one another in reverse.

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Answer:

How much they make  = 20,000

Expenses  = 15,000

Profit  = 5,000

Step-by-step explanation:

Well this question isn't very clear since it didn't state what the original cost for one iphone is. I think they are assuming one iphone to be 200 dollars or the sold amount, but this information is not directly stated. Anyways....

How much they make  100x200 = 20,000

Expenses  100(200-50) = 15,000

Profit  20,000 - 15,000 = 5,000

Answer:

1) 100 degrees F

2) 50 degrees F

Step-by-step explanation:

its just simple subtraction

Answer:

Let me help: If your school does keep change change the problem would become; -4+6=2 (More positive), and if not still 2.

Step-by-step explanation:

-4 Keep

- Change=+

Change -6=6

-4+6=2

It is a bigger number than 2 and using common knowledge, more negative=Negative, more positive=+, and if it's equal=0

brainliest?

To find the area of the region interior to r = 9 + 7sin(θ) below the polar axis, we can integrate the function from the lower bound of θ to the upper bound of θ and take the absolute value of the integral.

To find the area of the region formed by two petals of r = 8sin(3θ), we can integrate the function over the appropriate range of θ and take the absolute value of the integral. To find dy/dx for the given parametric equations x = t^(1/3) and y = 3 - t, we differentiate y with respect to t and x with respect to t and then divide dy/dt by dx/dt.

To find the area of the region interior to r = 9 + 7sin(θ) below the polar axis, we need to evaluate the integral ∫[lower bound to upper bound] |1/2 * r^2 * dθ|. In this case, the lower bound and upper bound of θ will depend on the range of values where the function is below the polar axis. By integrating the expression, we can find the area of the region. To find the area of the region formed by two petals of r = 8sin(3θ), we need to evaluate the integral ∫[lower bound to upper bound] |1/2 * r^2 * dθ|.

The lower bound and upper bound of θ will depend on the range of values where the function forms the desired shape. By integrating the expression, we can calculate the area of the region. To find dy/dx for the parametric equations x = t^(1/3) and y = 3 - t, we differentiate both equations with respect to t. Taking the derivative of y with respect to t gives dy/dt = -1, and differentiating x with respect to t gives dx/dt = (1/3) * t^(-2/3). Finally, we can find dy/dx by dividing dy/dt by dx/dt, resulting in dy/dx = -3 * t^(2/3).

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In this case, the base is labelled as 1.5 inches, and the height is labelled as h. We also know that the area of the triangle is labelled as 2 square inches the missing dimension of the triangle is 2.67 inches.

The formula for the area of a triangle is:

\(Area = 1/2 \times base \times height\)

In this case, the base is labelled as 1.5 inches, and the height is labelled as h. We also know that the area of the triangle is labelled as 2 square inches. Therefore, we can plug in these values into the formula and solve for h:

\(2 = 1/2 \times 1.5 \times h\)

Multiplying both sides by 2:

\(4 = 1.5 \times h\)

Dividing both sides by 1.5:

\(h = 4/1.5 = 2.67 inches\)

Therefore, the missing dimension of the triangle is \(2.67 inches.\)

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The missing dimension of the triangle is 2.67 inches.

What is triangle?

A triangle is a three-sided polygon with three angles. It is a fundamental geometric shape and is often used in geometry and trigonometry. A triangle is defined by its three sides and the three angles formed by those sides. The sum of the three angles in a triangle is always 180 degrees.

The formula to find the area of a triangle is:

Area = 1/2 * base * height

We know that the base of the triangle is 1.5 inches and the area is 2 square inches. Plugging these values into the formula, we get:

2 = 1/2 * 1.5 * h

Multiplying both sides by 2, we get:

4 = 1.5 * h

Dividing both sides by 1.5, we get:

h = 2.67 inches

Therefore, the missing dimension of the triangle is 2.67 inches.

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Step-by-step explanation:

Parallel lines cut by a transversal coloring activity is an activity that helps students understand the pattern of angles when parallel lines are cut by a transversal. The activity involves coloring the angles formed by the parallel lines and the transversal in different colors. This helps students identify the different types of angles formed and their relationships with each other.

The assumption that the error terms are homoscedastic can be rejected if the absolute value of your calculated t-statistic exceeds the critical value from the standard Normal distribution.

In a typical conveyance, information are evenly circulated with no slant. Values taper off as they move further away from the center, with the majority of values clustering around a central area. In a normal distribution, the measures of central tendency—the mean, mode, and median—are identical.

You reject the null hypothesis if the absolute value of the t-value is greater than the critical value. You fail to reject the null hypothesis if the absolute value of the t-value is lower than the critical value.

In measurements, a typical conveyance or Gaussian circulation is a sort of consistent likelihood dissemination for a genuine esteemed irregular variable.

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Leo has 38 toy troops as there aren't enough for him to line them up four by four.

The equal symbol (=) is frequently used to separate the expressions in equations. The left-hand side (LHS) and right-hand side (RHS) of the equation, respectively, are the formulas on either side of the equal sign. If you replace the variable(s) in both expressions with the same value, they will have the same value, as indicated by the equal symbol, which denotes that the two sides are equivalent.

given

We'll name Leo's collection of toy soldiers "x" the amount.

Finally, we know that the remainder is 3 when x is split by 5. Thus, x Plus 2 must be a multiple of 5.

Using this knowledge, we can construct the following system of equations:

x = 4n (where n is a positive number) (where n is a positive integer)

x + 1 = 7m (where m is a positive number) (where m is a positive integer)

x + 2 = 5p (where p is a positive number) (where p is a positive integer)

Testing different values of x that meet these two requirements reveals that x = 38 is the only answer that also resolves the second problem.

Leo has 38 toy troops as there aren't enough for him to line them up four by four.

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no answer bcz w bff fgfthsrgffd

Answer:

∅=45°

Step-by-step explanation:

\(2sin\)∅=\(\sqrt{2}\)

\(sin\)∅=\(\frac{\sqrt{2} }{2}\)

∅=\(sin^{-1} (\frac{\sqrt{2} }{2} )\)

∅=45°

I hope this help you

The chi-square distribution provides a good approximation to the sampling distribution of the chi-square statistic if the expected frequency in each cell is at least 5.

The chi-square statistic is a measure of how different an observed frequency is from the expected frequency. It is calculated by taking the difference between the observed and expected frequency in each cell, squaring it, and then summing the results. This measure can then be compared to a chi-square distribution with degrees of freedom equal to the number of cells minus one. If the calculated statistic is larger than the expected value from the chi-square distribution, then it can be concluded that the observed frequency differs significantly from the expected frequency.
In order to use the chi-square approximation, it is important that the expected frequency in each cell is at least 5. This is because the chi-square approximation only works well when there are large expected frequencies. When expected frequencies are smaller than 5, the chi-square statistic is not an accurate measure of the difference between the observed and expected frequencies.

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Answer:

22 people were born in the uk  (66 ÷ 360) × 120=22

Step-by-step explanation:

Using the pie chart, the fraction of people born in the UK, is: 7/30.

A pie chart is a graphical representation used to describe the composition of a data using degrees or percentages.

84° is given as the number of people that were born in the UK.

That's about: 84/360 × 120 = 28 people.

28 out of 120 people would give us a fraction of: 28/120 = 7/30.

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Jay is given 65% discount

Percentage discount is a discount that is given to a product or service that is given as an amount per hundred

Percentage discount can be gotten with the formula below:

Discount % = (Discount/Original Price) × 100.

From the question,

Jay pays 27300, instead of 42000

Using the percentage discount above

Percentage Discount = 27300/42000 x 100

Percentage Discount = 65%

Hence, jay got 65% discount from the school

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Answer:

The answer is -2x+10

Step-by-step explanation:

Hope this helps

Answer:

7.5

Step-by-step explanation:

QP is 2UT so 10÷2= 5

MQ is 2RU so 15÷2=7.5

B . 7.5

Step-by-step explanation:

QP is 2UT so 10÷2= 5

MQ is 2RU so 15÷2=7.5

Answer: 11 cupcakes were sold

Step-by-step explanation: You take the total amount of money $16.50 and divide it by the price of one cupcake $1.50 which gives you 11

The result of an average of more than 100% in a survey of tenants on cleaning chores in shared apartments is likely due to social desirability bias.

The average tenant response of more than 100% in a study about cleaning duties in shared apartments is probably the product of social desirability bias. Social desirability bias occurs when respondents give answers that they think are socially acceptable or desirable, rather than their true opinions or behavior.

In this case, tenants may have overstated their contribution to cleaning the apartment, in order to appear more helpful or responsible, leading to an average percentage higher than 100%.

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( I actually created a python program to do this, if you want it, I'll paste it at the bottom :L)

1- 60

2-80

3-200

4-40

5-21

(I caught the change in equations :L)

6-33

7-2

8-3

Hope this helps, if not, comment below please!!!

(The code:)

print "__________________________________"

#weird percent thingy

#num1 is first number, num2 is is the percent (no decimal)

phrase=("number is percent of finder")

print (phrase)

num1=(1)

num2=(1)

result=(num1*100/num2)

print(result)

Answer:

12 is 20% of 60

28 is 35% of 80

84 is 42% of 200

32 is 80% of 40

35% of 60 is 21

25% of 132 is 33

5% of 40 is 2

15% of 20 is 3

Step-by-step explanation:

For the first 4 situations, you need to multiply the first number by the reciprocal of the percentage as a fraction, which would be 100/(percent). Here's an example:

12 is 20% of x

x = 12*(100/20)

100/20 was used because that is the reciprocal of 20/100, which is 20% as a fraction out of 100.

For the last 4 situations, you just need to multiply the number by the percentage as a decimal. For example:

35% of 60 is x

x = 60*.35

The total cost of buying 3 pairs is $830 and in six months we will make $1,500.

So, the money we pay when we buy 3 pairs of Nike Kobe 3:

The total cost of buying 3 pairs: 320+240+270 =  $830

The money we will make in six months:

Therefore, the total cost of buying 3 pairs is $830 and in six months we will make $1,500.

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Answer:

C≈69.12

Step-by-step explanation:

C=2πr=2·π·11≈69.11504

Answer:

Yes

Step-by-step explanation:

25/5 = 5

30/6 = 5

35/7 = 5

40/8 = 5

Since, 25/5 = 30/6 = 35/7 = 40/8 = 5

So the relationship between x and y is proportional.

Answer: 2 trapezoids

Step-by-step explanation: so 1 trapezoid has the same angles and edges as a hexagon, you get 2 and put them together 1 upside one one forward side up, it makes a hexagon

Answer:

1/9

Step-by-step explanation:

x^-2

We know that a^-2 = 1/ a^2

1/x^2

Let x = -3

1/ (-3)^2

1/9

1/9 is a required answer.

Answer:

solution given:

\(x^{-2}=\frac{1}{x²}\)

again

substituting value of x

we have (-3)²=9

now

\(\bold{\frac{1}{x²}=\frac{1}{9}}\)