x^2 + __x + 49 pls i need help

and i need 4x^2-24x+__

Answer:

x ≤ 320

Step-by-step explanation:

320 is the maximum number, so the number of people, x, is equal to or less than 320.

x ≤ 320

Step-by-step explanation:

put 6x-10 in y=x-4

so

y = (6x-10) - 4

y = 6x-14

Answer:

one solution

Step-by-step explanation:

Given

9(3x - 5) = - 9(- 5x - 3) ← distribute parenthesis on both sides )

27x - 45 = 45x + 27 ( subtract 45x from both sides )

- 18x - 45 = 27 ( add 45 to both sides )

- 18x = 72 ( divide both sides by - 18 )

x = - 4

Answer:

Dena

Step-by-step explanation:

area = base × height / 2

base = 7 ft

height = 4 ft

area = 7 ft × 4 ft / 2

area = 14 ft²

Answer: Dena is the only correct answer.

(-2, -4) and (2, 4) is the solution to the given system of simultaneous equation

Given the system of equation

f(x) = x^2 + 2x - 4

g(x) = -2x^2 + 2x + 8

When solving graphically, the point of intersection of both curves on an xy plane is the solution to the system of equation.

According to the graph attached, the solution to the system of equation is (-2, -4) and (2, 4).

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Answer: B

Step-by-step explanation: I took the test

a. The error term ε_i in the regression model represents the random variation or unexplained variability in the relationship between the monthly sales (Y_i) and the price (X_i). It captures all the factors that affect the sales but are not included in the model, such as marketing efforts, consumer preferences, competitor behavior, and other unobserved variables.

b. The regression equation, SALES = 5.3 - 0.26 Price, states that the monthly sales (SALES) can be estimated by subtracting 0.26 times the price (Price) from 5.3. In other words, for every one-unit increase in the price, the expected monthly sales decrease by 0.26 units. The intercept term (β_0) of 5.3 represents the estimated monthly sales when the price is zero, which may not have a practical interpretation in this context.

c. The R-squared (R^2) value of 0.27 indicates that approximately 27% of the variation in the monthly sales can be explained by the linear relationship with the price. It represents the proportion of the total variation in the sales that can be accounted for by the variation in the price. d. To predict the sales for a $25 priced imported beer, we can substitute the given price value (X_i = 25) into the regression equation: SALES = 5.3 - 0.26 * 25. Calculating this, we find that the predicted sales would be 5.3 - 6.5 = -1.2 thousand dollars. However, it is important to note that the prediction falls outside the range of observed sales, indicating that it may not be reliable. e. Without knowing the specific data values, we cannot determine the average value of SALES (Y-bar) in the given sample. It would require the actual sales data for each price value in the sample to calculate the average sales value accurately.

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Answer:

Divide the numerator by the denominator. 78 ÷ 5 = 15 with a remainder of 3.

Write down the whole number 15 and then write down the remainder as new numerator (3) above the denominator (5), As below : 15 35.

Answer:

\(15\frac{3}{5}\)

Step-by-step explanation:

to prove the answer:

\(15\frac{3}{5}\)

15*5+3/5

75+3/5

78/5

therefore ,\(15\frac{3}{5}\) = 78/5

30 is the answer

Step-by-step explanation:

5 10 15 20 25 30

or 5x6

The domain of a function is the set of numbers that can go into a given function.

The set of input values (x) for which a function generates an output value is known as the domain of the function (y).

we can write \(y = f(x).\)

domain is the full set of x-values that can be plugged into a function to produce a y-value.

The most effective approach to finding a domain will depend on the type of function.

The domain is expressed using an open bracket or parenthesis, the domain's two endpoints separated by a comma, and then a closed bracket or parenthesis.

To find domain of function we should know the property of that function like what the function can take inside it.

Like if we consider square root function \(\sqrt{x}\) so inside root negative numbers are not allowed so value of x should be positive means x>=0

So domain of square root function [0, ∞).

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Answer:

10

Step-by-step explanation:

The measure of an angle∠I  is 10 degrees between the 450 cm and 640 cm sides.

The Law of Cosines (also called the Cosine Rule) is defined as it relates all three sides of a triangle with an angle of a triangle.

c² = a² + b² − 2ab cos(C)

The cosine rule, also known as the law of cosines, relates all 3 sides of a triangle with an angle of a triangle. it relates the lengths of the sides of a triangle to the cosine of one of its angles.

In the given triangle ΔHIJ,

Sides:

h = 450 m

i = 210 m

j = 640 m

The angle of ∠I  is 10 degrees between the 450 cm and 640 cm sides.

According to the cosine rule,

j² = h² + i² − 2ab cos(I)

Substitute the values in the Cosine Rule,

450² = 210² + 640² - 2(210)(640)cos(I)

After solving we get the value of  angle ∠I :

∠I = 9.56038°

Rounded to the nearest degree.

∠I = 10°

Thus, the measure of an angle∠I  is 10 degrees.

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There are two different ways in which he can choose 9 sandwitches. It can be solve by the concept of permutation and combination.

What is permutation and combination?

A permutation is an arrangement of several items taken one at a time or all at once in a specific order.

Combinations are based entirely on grouping. Combinations can be used to determine how many different groups that can be created from the available items.

Since all vegitarian sandwiches looks like same and all sandwitches with meat looks like same hence, their order will not affect the number of choice.

If 8 sandwitches are vegitarian then 1 sandwitch must be with meat. So that total sandwithches becomes 9.

If all 9 sindwitches are vegetarian then there is no option to choose another sandwitch. Because he can choose only 9 sandwitches.

Hence, there are two different ways in which he can choose 9 sandwitches.

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To find the probability that someone is wearing a hat given that they are wearing sunglasses, we can use the probability multiplication rule, also known as Bayes' theorem.

Let's denote:

A = event of wearing a hat

B = event of wearing sunglasses

According to the given information:

P(A and B) = 0.25 (the probability that someone is wearing both sunglasses and a hat)

P(A) = 0.4 (the probability that someone is wearing a hat)

P(B) = 0.5 (the probability that someone is wearing sunglasses)

Using Bayes' theorem, the formula is:

P(A|B) = P(A and B) / P(B)

Substituting the given probabilities:

P(A|B) = 0.25 / 0.5

P(A|B) = 0.5

Therefore, the probability that someone is wearing a hat given that they are wearing sunglasses is 0.5, or 50%.

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The next three letters in the sequence J F M A M J J A are S, O, N.

To find the next three letters in the sequence J F M A M J J A, we need to identify the pattern or rule that governs the sequence. In this case, the sequence follows the pattern of the first letter of each month in the year.

The sequence starts with 'J' for January, followed by 'F' for February, 'M' for March, 'A' for April, 'M' for May, 'J' for June, 'J' for July, and 'A' for August. The pattern repeats itself every 12 months.

Therefore, the next three letters in the sequence would be 'S' for September, 'O' for October, and 'N' for November.

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The next three letters in the sequence "J F M A M J J A" are "S O N", indicating the months of September, October, and November.

The given sequence "J F M A M J J A" represents the first letters of the months in a year, starting from January (J) and ending with August (A). To find the next three letters in the sequence, we need to continue the pattern by considering the remaining months.

The next month after August is September, so the next letter in the sequence is "S". After September comes October, represented by the letter "O". Finally, the month following October is November, which can be represented by the letter "N".

Therefore, the next three letters in the sequence "J F M A M J J A" are "S O N", indicating the months of September, October, and November.

It is important to note that the given sequence follows the pattern of the months in the Gregorian calendar. However, different cultures and calendars may have different sequences or names for the months.

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Both algorithms provide worst-case O(n) time complexity, making them efficient for finding Pareto optimal points in a set of n points.

To find a single Pareto optimal point in a set S of n points, we can use the following algorithm with a worst-case O(n) time complexity:

1. Initialize a variable (xi, yi) as the first point in S.

2. For each point (xj, yj) in S, starting from the second point:

  - If xj > xi and yj > yi, update (xi, yi) to be (xj, yj).

  - If xj <= xi or yj <= yi, continue to the next point.

3. Return the final (xi, yi) as the Pareto optimal point.

The algorithm works by iteratively comparing each point with the current Pareto optimal point. If a point has both a higher x-coordinate and a higher y-coordinate than the current Pareto optimal point, it becomes the new Pareto optimal point. Otherwise, it is skipped.

The time complexity of this algorithm is O(n) because we iterate through the set S once, comparing each point with the current Pareto optimal point. Since each comparison takes constant time, the overall time complexity is linear in the number of points.

If the points in S are already sorted by their x-coordinates and each point has a unique x-coordinate, we can modify the algorithm to find all Pareto optimal points in O(n) time as well. Here's the modified algorithm:

1. Initialize an empty result list.

2. Initialize (xi, yi) as the first point in S.

3. Add (xi, yi) to the result list.

4. For each point (xj, yj) in S, starting from the second point:

  - If yj > yi, update (xi, yi) to be (xj, yj) and add it to the result list.

  - If yj <= yi, continue to the next point.

5. Return the result list containing all Pareto optimal points.

In this modified algorithm, we only consider the y-coordinate comparison since the points are sorted by their x-coordinates.

Whenever we find a point with a higher y-coordinate, we update the current point and add it to the result list. The time complexity remains O(n) as we still iterate through the set S once.

Both algorithms provide worst-case O(n) time complexity, making them efficient for finding Pareto optimal points in a set of n points.

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Answer:

given,triangle EFG is congruent to triangle HIJ,THEIR corresponding sides are equal,

so, 10x=x+45

10x_x=45

or,9x=45

therefore , x=5

again,

3y = y+14

or, 3y_y=14

or, y=14/2

therefore the value of y is 7.

so the value of x is 5 and y is 7.

hope its helpful to uh...

The factor completely of the provided polynomial by taking out the greatest common factor from the polynomial is,

\(2x^2(7x^4 +4x+2)\)

The factor of a polynomial is the terms in linear form, which are, when multiplied together, give the original polynomial equation as a result.

The given polynomial in the problem is,

\(14x^6 +8x^3+4x^2\)

Take out the greatest common factor from the above expression. As the greatest common factor of the above polynomial is 2 (14, 8, 4), which can divide each terms. Therefore,

\(2(7x^6 +4x^3+2x^2)\)

Now take out the greatest common factor in terms of variable x. The lowest power of x is 2. Therefore, the equation become,

\(2x^2(7x^4 +4x+2)\)

Thus, the factor completely of the provided polynomial by taking out the greatest common factor from the polynomial is,

\(2x^2(7x^4 +4x+2)\)

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Answer:

A. 2x^2 (7x^4 + 4x +2)

\(y=2\frac{2}{3}+16\) is the answer as it passes perpendicular and through point A

Answer:

she put 131

Step-by-step explanation:

is she took out 45 from 176 she would have put in 131 I'm the account

The patient's maximum temperature during the illness is approximately 100.4°F.

a. When does the patient's temperature reach its maximum value? To find when the patient's temperature reaches its maximum value, we need to find the vertex of the parabolic function. The vertex of a parabola is given by the formula (-b/2a, f(-b/2a)),

where a, b, and c are the coefficients of the quadratic function in standard form, f(x) = ax^2 + bx + c. In this case, the function is T(t) = -0.026t^2 + 0.5824t + 98.8, so a = -0.026 and b = 0.5824.

Using the formula, the t-value of the vertex is (-b/2a) = (-0.5824/(2*(-0.026))) = 11.2. Therefore, the patient's temperature reaches its maximum value 11.2 hours after the illness begins.

b. What is the patient's maximum temperature during illness?

To find the maximum temperature during the illness, we need to plug in the value of t = 11.2 into the function T(t) = -0.026t^2 + 0.5824t + 98.8.

T(11.2) = -0.026(11.2)^2 + 0.5824(11.2) + 98.8 ≈ 100.4°F

Therefore, the patient's maximum temperature during the illness is approximately 100.4°F.

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Answer:

if x=-4 & y=-14...then x=9 & Y= -1. which is minus 10

Step-by-step explanation:

-4 is 10 under -14. If X=9 then Y= -1.

Answer:

B 12

Step-by-step explanation:

I got it right

Answer:

5 minutes per mile

Step-by-step explanation:

15 divided by 3 = 5

The probability that exactly two will be replaced under warrant is 0.1937.

The possibility of an event occurring is determined by the probability formula. The ratio of positive outcomes to the total number of outcomes serves as the basis for calculating an event's probability. The probabilities are always between 0 and 1. A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.

Given,

W = Warranty

V = Replaced

P(W) = 20/100

P(W) = 0.20

P(U/W) = 0.40

P(W ∩ U)

= P(U/W) × P(W)

= 0.40 × 0.20

0.-08

P( exactly two will be replaced under warranty)

Using binomial distribution:

= P(X = 2)

= 10/2 (0.0.8)² (0.9)⁸

= 0.1937

The probability that exactly two will be replaced under warrant is 0.1937.

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The mean and median for each of the following samples is Mean: 49.6, Median: 48.5.

To calculate the mean, we sum up all the values in the sample and divide by the total number of values.

In this case, the sum of the values is 496, and since there are 10 values in the sample, we divide 496 by 10 to get the mean of 49.6.

To find the median, we arrange the values in ascending order. The sorted sample becomes {37, 41, 45, 47, 48, 50, 50, 51, 59, 68}.

Since there are 10 values, the median is the average of the middle two values, which are 48 and 50. Adding them together and dividing by 2 gives us a median of 48.5.

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Answer:

image

Step-by-step explanation:

on image, ignore the p, q and r...

1)The expression 4x^2-16x+12/x^2-9 is undefined when the denominator, x^2-9, equals zero because division by zero is undefined.

x^2-9 equals zero when x equals 3 or x equals -3. Therefore, the expression is undefined at x = 3 and x = -3. In all other cases, the expression is defined.

2) The given expression is:

(5-2x)/(x+2) + x^2/(x^2-4) - 5

To simplify this expression, we need to first find the LCD (least common denominator) of the two fractions. The denominator of the first fraction is x+2, and the denominator of the second fraction is x^2-4, which can be factored as (x+2)(x-2). So the LCD is (x+2)(x-2). Now we can rewrite the expression with this common denominator:

[(5-2x)(x-2) + x^2(x+2) - 5(x+2)(x-2)] / [(x+2)(x-2)]

Expanding the brackets and simplifying, we get:

(-x^3 - 3x^2 - 3x + 5) / [(x+2)(x-2)]

This expression is undefined when the denominator, (x+2)(x-2), equals zero because division by zero is undefined.

(x+2)(x-2) equals zero when x equals -2 or x equals 2. Therefore, the expression is undefined at x = -2 and x = 2. In all other cases, the expression is defined.

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Answer:

Step-by-step explanation:

it is 2x