Please help did I do this right. If yes then answer then I will give you an brainliest answer.​

Polynomials are algebraic expressions consisting of terms that include real numbers, variables, and positive integer exponents. Each term in a polynomial has a variable raised to a non-negative integer power, and the coefficient of each term is a real number. Polynomials are classified by the degree of their highest power. If two or more terms in a polynomial have the same variable raised to the same power, they can be combined into a single term.

1. -x² + x - x² + 1

Combine like terms: -x² + x - x² + 1 = -2x² + x + 1

This polynomial has degree 2 because the highest power of the variable is 2.

2. x² + x + 2x³ - x

Rearrange terms: 2x³ + x² + x - x = 2x³ + x²

This polynomial has degree 3 because the highest power of the variable is 3.

3. 4x + x + x - 2

Combine like terms: 4x + x + x - 2 = 6x - 2

This polynomial has degree 1 because the highest power of the variable is 1.

4. 3x² + 4 - 3x² - 1

Combine like terms: 3x² - 3x² + 4 - 1 = 3

This polynomial has degree 0 because there is no variable term.

Therefore, the four given polynomials have degrees 2, 3, 1, and 0, respectively.

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Answer: et's call the amount of strawberries Gill uses "x" grams. We know that the ratio of strawberries to bananas is 7:3, so we can set up an equation:

x/144 = 7/3

To solve for x, we'll multiply both sides of the equation by 144:

x = 7/3 * 144

x = 7 * 48

x = 336

So Gill uses 336 grams of strawberries in the smoothie.

Step-by-step explanation:

The basic difference between binary number system and hexadecimal number system 7

What is meant binary number?

Binary number system, in mathematics, positional numeral system employing 2 as the base and so requiring only two different symbols for its digits, 0 and 1, instead of the usual 10 different symbols needed in the decimal system.

What is the hexadecimal of 7?

00000111

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Variance and Standard deviation can tell us the variation of data within a group of samples.

What is a variance?

Variance is a term used in probability theory and statistics to measure how far a group of numbers are spread out from their mean value.

In the context of hypothesis testing, the variance of two groups of data is compared to see if they are statistically significant.

A smaller variance indicates that the data points are closer together, whereas a larger variance indicates that the data points are farther apart.

What is Standard deviation?

The standard deviation is the square root of the variance, and it is used to express the average distance that data points deviate from the mean in a group of samples.

It is used in statistics to measure how tightly a set of data is clustered around its mean.

What is Mean?

The average value of a group of numbers is referred to as the mean.

It is calculated by adding all of the numbers together and then dividing by the total number of numbers.

What is T-value?

The t-value is used to test the null hypothesis, which states that there is no significant difference between two groups of data.

The t-value is calculated by subtracting the mean of one group from the mean of the other group and then dividing by the standard deviation of the two groups combined.

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Answer:

t= -9/10= -0.900

Step-by-step explanation:

The time study analyst should account for at least 55 observations in order to calculate the mean time per item with a 95.5% confidence level and a 0.4 minute margin of error.

We can use the sample size calculation formula in a confidence interval to get the number of observations required for a time study with the specified parameters:

\(n = (Z * \sigma / E)^2\)

Where:

n = sample size

Z = The target confidence level's Z-score (95.5% translates to roughly 1.96)

σ = procedure standard variation (1.5 minutes per piece)

E = margin of error (0.4 minutes)

Plugging in the values, we can calculate the sample size:

\(n = (1.96 * 1.5 / 0.4)^2\)

\(n = (2.94 / 0.4)^2\)

\(n = 7.35^2\)

n ≈ 54.02

We round up the sample size to the next whole number because we can't have a portion of an observation:

n = 55

Therefore, the time study analyst should prepare for at least 55 observations to estimate the mean time per item with a margin of error of 0.4 minutes and a confidence level of 95.5%.

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Use the Law of Sines to solve the triangle. The correct option among the given options is B C = 85°, a = 5.76, b = 8.69, where c ≈ 10.38.

To solve the triangle using the Law of Sines, we can use the formula:

a/sin(A) = b/sin(B) = c/sin(C)

Let's analyze each option one by one:

A) C = 85°, a = 7.76, b = 10.69

To solve this triangle, we can use the Law of Sines as follows:

a/sin(A) = b/sin(B) = c/sin(C)

7.76/sin(35°) = 10.69/sin(60°) = c/sin(85°)

Using this equation, we can solve for c:

c = (7.76 * sin(85°)) / sin(35°) c ≈ 13.99

Therefore, the answer is not C = 85°, a = 7.76, b = 10.69.

Now let's check the other options:

B) C = 85°, a = 8.76, b = 10.69

Using the same formula, we can calculate c:

c = (8.76 * sin(85°)) / sin(35°) c ≈ 15.77

Therefore, the answer is not C = 85°, a = 8.76, b = 10.69.

C) C = 85°, a = 8.69, b = 9.69

Using the same formula, we can calculate c:

c = (8.69 * sin(85°)) / sin(35°) c ≈ 15.56

Therefore, the answer is not C = 85°, a = 8.69, b = 9.69.

The correct option among the given options is B C = 85°, a = 5.76, b = 8.69, where c ≈ 10.38.

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In three-dimensional graphing, we use three axes (x, y, and z) to divide the space into eight sections or intervals.(option d)

In three-dimensional graphing, we use three axes to represent the three dimensions: x, y, and z. These axes are typically labeled as x-axis, y-axis, and z-axis, respectively. The x-axis represents the horizontal direction, the y-axis represents the vertical direction, and the z-axis represents the depth or distance from the viewer's perspective.

When we combine these three axes, they create a three-dimensional space or a graph. Each axis is perpendicular to the other two axes, forming a right-handed coordinate system. The x, y, and z axes intersect at a point called the origin, usually denoted as (0, 0, 0). The origin serves as the reference point from which we measure distances and positions in three-dimensional space.

Each axis is divided into smaller sections or intervals, just like the number line on a two-dimensional graph. These divisions, also known as units or ticks, help us locate and label specific points or positions in the three-dimensional space accurately. The number of sections or intervals on each axis depends on the scale or range of values being represented.

The correct answer to the question is D) 3,8, as there are three axes (x, y, and z) and each axis is divided into eight sections or intervals, depending on the scale or range being represented.

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Given data:

The first number is 3.

The second number is 9.

The greatest commonn factor is,

Thus, the greatest common factor is 3.

Given data:

The given number is 3.

Thus, the number 1 and 3 are the factors of 3.

The solution to the inequality (x-3)(x+5) ≤0 is  {x | -5 ≤ x ≤ 3}.

To solve the inequality (x-3)(x+5) ≤ 0, we can first find the critical points of the quadratic expression \(x^{2}\) + 2x - 15 by setting it equal to zero:

\(x^{2}\) + 2x - 15 = 0

(x + 5)(x - 3) = 0

This gives us two critical points: x = -5 and x = 3. These divide the real number line into three intervals:

Interval 1: x < -5

Interval 2: -5 ≤ x ≤ 3

Interval 3: x > 3

We can now test each interval to determine where the inequality (x-3)(x+5) ≤ 0 is true.

For interval 1, we can choose x = -6 as a test point:

(-6 - 3)(-6 + 5) = (-9)(-1) = 9 > 0

This means that the inequality is not true for any value of x less than -5.

For interval 3, we can choose x = 4 as a test point:

(4 - 3)(4 + 5) = (1)(9) = 9 > 0

This means that the inequality is not true for any value of x greater than 3.

For interval 2, we can choose x = 0 as a test point:

(0 - 3)(0 + 5) = (-3)(5) = -15 < 0

This means that the inequality is true for all values of x between -5 and 3, including the endpoints. Therefore, the solution to the inequality is:

{x | -5 ≤ x ≤ 3}

So the correct answer is {x | -5 ≤ x ≤ 3}.

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The standard deviation of the sampling distribution of sample means, when creating samples of the amounts of weight lost by 82 people on the latest fad diet, would be approximately 0.54 pounds.

The standard deviation of the sampling distribution of sample means can be calculated using the formula: standard deviation of the sampling distribution = standard deviation of the population / square root of the sample size.

In this case, the standard deviation of the population is given as 4.9 pounds, and the sample size is 82. Therefore, the standard deviation of the sampling distribution of sample means can be calculated as follows:

Standard deviation of the sampling distribution = 4.9 / √82 ≈ 0.541 pounds (rounded to two decimal places).

So, the standard deviation of the sampling distribution of sample means would be approximately 0.54 pounds.

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The required value of the given expression at z = 6 is 51.

Given that,
The value of the expression z² + 3z - 3 is to be determined.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Given expression,
= z² + 3z - 3
Put z = 6 and simplify the expression,
= 6² + 3(6) - 3
= 36 + 18 - 3
= 54 - 3
= 51

Thus, the required value of the given expression at z = 6 is 51.

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Answer:

I'm sorry i do not know but can you please press thanks it would really help me sorry i didn't know but u cant type your question in g00gle and 9 x out of 10 you will get the right 1

Step-by-step explanation:

sorry again im not that smart

Answer: 1 1/6

Step-by-step explanation:hope this helps !

Answer:

it would be

1 1/6

Step-by-step explanation:

Suppose that we randomly choose pens from a box that contains yellow and green pens until a yellow pen is obtained. Assume that each selected pen is replaced before the next one is drawn. In order to find the probability of picking up a pen at least three times, we need to use the probability formula.

For this problem, the probability of choosing a yellow pen on the first draw is P(Y) = number of yellow pens / total number of pens = y / (y+g), where y is the number of yellow pens and g is the number of green pens. The probability of not choosing a yellow pen on the first draw is P(NY) = g / (y+g).After selecting a pen, if it is not yellow, we need to select a pen again. The probability of selecting a pen that is not yellow on the second draw is the same as the probability of not selecting a yellow pen on the first draw, that is\(P(NY) = g / (y+g).\)

Therefore,

the probability of choosing a yellow pen on the second draw is P(Y and NY) = \(P(Y) × P(NY) = y × g / (y+g)²\).The probability of not choosing a yellow pen on the first two draws is P(NYY) = P(NY) × P(NY) = g² / (y+g)².To calculate the probability of choosing a yellow pen on the third draw, we need to consider two cases: the pen selected on the first two draws is green, and the pen selected on the first two draws is not green.

Case 1: The pen selected on the first two draws is green. The probability of selecting a yellow pen on the third draw is P(Y and NY and G) =\(P(Y) × P(NY) × P(G) = y × g × (y+g) / (y+g)³.\)

Case 2: The pen selected on the first two draws is not green. The probability of selecting a yellow pen on the third draw is P(Y and NY and NY) = P(Y) × P(NY) × P(NY) = y × g² / (y+g)³.Therefore, the probability of picking up a pen at least three times is P(at least 3) = P(NYY) + P(Y and NY and G) + P(Y and NY and NY) = g² / (y+g)² + y × g × (y+g) / (y+g)³ + y × g² / (y+g)³ = g² / (y+g)² + 2y × g / (y+g)³.

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Answer: 100 feet

Step-by-step explanation:

60+40=100

Answer:

at least 73 feet

Step-by-step explanation:

40^2+60^2=5200

square root 5200=72

To create a 10" by 10" grid using 1" pieces of wire, you will need to increase a total of 110 pieces of wire. This includes 100 "place" wires to form the grid squares, and 10 additional "piece" wires on each side to complete the border.

To create a similar 10'' by 10'' grid, we would need to increase each side by a factor of 10/6 or 5/3. This means that each piece of wire in the original 6'' by 6'' grid would need to be extended by 5/3, making it 5/3 inches long.

The number of pieces of wire needed for the new grid can be calculated by using the formula:

Number of pieces of wire = (number of horizontal wires + number of vertical wires + diagonals) x length of each wire

For the original 6'' by 6'' grid, there are 7 horizontal wires, 7 vertical wires, and 10 diagonals (which can be counted by drawing lines from each corner to the opposite corner). So the total number of wires is:

(7 + 7 + 10) x 1 = 24

For the new 10'' by 10'' grid, there will be 11 horizontal wires, 11 vertical wires, and 16 diagonals. So the total number of wires needed is:

(11 + 11 + 16) x (5/3) = 64.44 (rounded up to the nearest whole number)

Therefore, we would need approximately 64 pieces of wire to create a similar 10'' by 10'' grid.

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Some other names for the unit rate are:

A general proportional relation is written as:

y = k*x

You can see that it goes through the origin because when we evaluate in x = 0, we get:

y = k*0 = 0

So it passes through (0, 0).

The value "k" has several names, unit rate is the one given here, but it is generally called the "constant of proportionality"

It is also called the slope (like in a linear equation with an y-intercept equal to 0).

Or the rate of change or gradient, which are equivalent terms that particularly in the case of linear equations are equal to the slope (but not for other functions).

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Answer:

A

Step-by-step explanation:

5/18 = 0.2777 = 0.27° so when you divided thd no. it is 0.277777 and 7 is repeat .

Answer:

A.

Step-by-step explanation: Because as you see the dot is past the 2 and is on the third line out of 4, the 4th line is the next number.

When determining if a table represents a function, it is important to ensure that each input (x-value) corresponds to exactly one output (y-value). In other words, for every x, there is only one y.

To identify the correct table, you would examine the x-values in each table to make sure that there are no repeating x-values with different y-values. A table that meets this criterion will represent a function. Unfortunately, you did not provide any tables to analyze. However, using the criterion mentioned in the explanation, you can now evaluate each table yourself to determine which one best represents a function. Remember to look for a table where each x-value corresponds to exactly one y-value.

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The 4 tests for similar triangles are:-

AAA: Three pairs of equal angles.

SSS: Three pairs of sides in the same ratio.

SAS: Two pairs of sides in the same ratio and an equal included angle.

ASA: Two angles and the side included between the angles of one triangle are equal

What is AAA,SAS,ASA,SSS?

According to the SSS rule, two triangles are said to be congruent if all three sides of one triangle are equal to the corresponding three sides of the second triangle. 

According to the SAS rule, two triangles are said to be congruent if any two sides and any angle between the sides of one triangle are equal to the corresponding two sides and angle between the sides of the second triangle.

According to the ASA rule, two triangles are said to be congruent if any two angles and the side included between the angles of one triangle are equal to the corresponding two angles and side included between the angles of the second triangle.

According to the  AAA rule, "if in two triangles, corresponding angles are equal, then their corresponding sides are in the same ratio (or proportion), and hence the two triangles are identical."

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Answer:

B._________________________

In a shortest path problem, the right-hand side (RHS) value for the starting node has a value of 0. This indicates that the shortest path from the starting node to itself has a cost of 0.

In summary, the RHS value for the starting node in a shortest path problem is 0, indicating that the shortest path from the starting node to itself has a cost of 0.

The RHS value is used in the context of the Dijkstra's algorithm, which is commonly used to solve shortest path problems. In this algorithm, a priority queue is used to store the nodes that have not yet been visited, sorted based on their tentative distances from the starting node. Initially, the starting node is assigned a tentative distance of 0, indicating that it is the source node for the shortest path. The RHS value is used to update the tentative distance of a node when a shorter path is discovered. When a node is added to the priority queue, its tentative distance is compared to its RHS value, and the smaller of the two values is used as the node's priority in the queue. By setting the RHS value of the starting node to 0, we ensure that the starting node always has the highest priority in the queue and is processed first by the algorithm.

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Answer:

C- 80 degrees Celsius

Step-by-step explanation:

If you followed the formula by subtracting 176 by 32 you would get 144 multiplied by 5/9 = 80 degrees

The number of square feet of roofing on the barn is 4701 square feet if the barn is 100 feet long and 40 feet wide.

What is integration?

It is defined as the mathematical approach to calculating the smaller parts or components.

It is given that:

A barn is 100 feet long and 40 feet wide.

Find the first derivative of the given function:

After solving the above integration:

= 20(e - 1/e)

The roofing = 100(20(e - 1/e))

= 4701 square feet

Thus, the number of square feet of roofing on the barn is 4701 square feet if the barn is 100 feet long and 40 feet wide.

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Answer:6.66666 kilocalories  per hour

Step-by-step explanation:

a) The recurrence relation for the number of ways to pay a bill of n pesos, considering the order in which the coins and bills are paid, can be defined as follows:

Let W(n) be the number of ways to pay a bill of n pesos. We can consider two cases:

If the largest denomination used is 1 peso, then the remaining amount to be paid is (n-1) pesos. In this case, there is only one way to pay the bill.

If the largest denomination used is larger than 1 peso, then we can use one of the available denominations (2 pesos, 5 pesos, 10 pesos, or bills) to pay part of the bill. For each denomination, we subtract its value from n and consider the remaining amount. The total number of ways in this case is the sum of the number of ways for each remaining amount.

Therefore, the recurrence relation can be written as:

W(n) = 1 + W(n-1) + W(n-2) + W(n-5) + W(n-10)

b) To find the number of ways to pay a bill of 17 pesos, we can use the recurrence relation derived in part a. Starting from the base cases, we have W(0) = 1 and W(1) = 1 (there is only one way to pay a bill of 0 or 1 peso). Using the recurrence relation, we can calculate the number of ways for larger values of n.

W(2) = 1 + W(1) + W(0) = 1 + 1 + 1 = 3

W(3) = 1 + W(2) + W(1) = 1 + 3 + 1 = 5

W(4) = 1 + W(3) + W(2) + W(0) = 1 + 5 + 3 + 1 = 10

W(5) = 1 + W(4) + W(3) + W(0) = 1 + 10 + 5 + 1 = 17

W(6) = 1 + W(5) + W(4) + W(1) = 1 + 17 + 10 + 1 = 29

...

Continuing this process, we can find the number of ways to pay a bill of 17 pesos considering the order in which coins and bills are paid.

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