does anyone know this ??

Answer: mandatory and discretionary.

Answer:

32

put 12.8% as a decimal which is 0.128 and times it by 250

Answer:

32

Step-by-step explanation:

\(\frac{y}{250} :\frac{12.8}{100}\)

y × 100 = 250 × 12.8

100y = 3200

100y ÷ 100 = 3200 ÷ 100

y = 32

Answer:

Option A is the correct answer

A.x=2a(b-y)

Step-by-step explanation:

Reason: 2a is not a coefficient of y.

Hope it helps you in your learning process.

The perimeter of the triangle is inches 5x+12.

The perimeter is the distance around a shape's edge.

The distance encircling a shape's boundary is its perimeter.

The sides of the triangles are 4x+1, x+4 and 7 inches.

To find the perimeter of the triangle:

The formula for the perimeter of a triangle is the sum of the length of all the sides of a triangle.

That means,

the perimeter of the triangle = (4x+1) + (x+4) + 7

The perimeter of the triangle = 5x+ 12

Therefore, 5x+12 is the perimeter of the triangle is 5x+ 12.

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Bartlett's test is often run in conjunction with ANOVA to test for equal variances among treatment groups. The correct answer is option (a).

In ANOVA (Analysis of Variance), we compare the means of multiple groups to determine if there are statistically significant differences among them. However, it is important to also assess the assumption of equal variances across those groups. Bartlett's test is a statistical test used to examine the equality of variances among treatment groups.

The test assesses whether the observed variances of the groups significantly differ from each other. If the p-value from Bartlett's test is greater than the chosen significance level (usually 0.05), it suggests that the variances are not significantly different, supporting the assumption of equal variances among treatment groups. On the other hand, if the p-value is below the significance level, it indicates unequal variances, which may impact the validity of the ANOVA results.

Therefore, the correct answer is (a) equal variances among treatment groups. Bartlett's test helps to determine if the assumption of equal variances in ANOVA is met or violated.

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Let the number of professors be x.

If there are 16 times as many students as professors, then the number of students will be:

If the number of students and professors is 42,500, then we have that:

Solving by dividing both sides by 17, we have:

Hence, we can calculate the number of students in the college to be:

Therefore, there are 40,000 students in the college.

The value of x is 26.5, found using the property of intersecting chords in a circle and the Pythagorean theorem.

To find the value of x, we can use the property that states that if two chords intersect in a circle, the product of the segments of one chord is equal to the product of the segments of the other chord.

In this case, we can draw radii from O to points P and S, and label their lengths as 19. Then, we can label the segments of chords FG and RS as follows:

                     Let a = FG and b = GP

                      Let c = RS and d = SP

Since OP is a radius of the circle, we know that a + b = 19. Similarly, since OS is a radius of the circle, we know that c + d = 19.

Using the property mentioned above, we can write:

                      a * b = c * d

Substituting the given values, we get:

                   25 * (19 - b) = 28 * (19 - d)

Expanding and simplifying, we get:

                      475 - 25b = 532 - 28d

Substituting a + b = 19 and c + d = 19, we get:

                 b = 19 - a and d = 19 - c

Substituting these values, we get:

                 25a - 25(19 - a) = 28c - 28(19 - c)

Simplifying, we get:

                    53a - 475 = 28c - 532

Rearranging, we get:

                       53a - 28c = -57

We also know that a + c = 25 + 28 = 53.

We can solve these two equations simultaneously to find the values of a and c:

                        a = 13.8

                        c = 39.2

Therefore, the length of the segment RS is 39.2, and the length of the segment RP19S is 58.2.

Using the Pythagorean theorem, we can find the length of the segment OP:

                  (OP)²= (RP19S)² - (19)²

                  (OP)² = (58.2)² - (19)²

                  (OP)² = 3136.24

                        OP = 56

Finally, we can find x using the fact that the chords FG and RS are parallel:

                           x = (1/2) * (FG + RS)

                           x = (1/2) * (25 + 28)

                           x = 26.5 (rounded to the nearest tenth)

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Answer: A

Step-by-step explanation:

Answer:

Step-by-step explanation:

The given curve crosses the x-axis in two places, (-2, 0) and (0, 0), which are the zeros.  This parabolic curve opens up and has its vertex (minimum) at (-1, -1).

Answer: The graph has two zeros.

Step-by-step explanation:

The given graph is the graph of parabola open upward. In the graph of parabola, we will have two solutions since the highest degree of the function is 2.

y = ax^2 + bx + c, where a, b, c are real number and a ≠ 0.

You can see the height degree of the function is 2.

Therefore, there should be two zeros of the function.

According to the given graph of parabola has two zeros at x = -2 and x = 0.

The graph cross the x-axis at x = -2 and x = 0.

Hence, the graph has two zeros.

Answer is A. The graph has two zeros

Answer:

d. 0.85m + 2.50

Step-by-step explanation:

In the figure attached, the complete question is shown.

We can see in the table that $2.50 is a fixed charge, that is, it is not modified by any variable. On the other hand, for each travelled mile, the cost of the travel increases $0.85 ($0.75 by mileage charge + $0.1 by city gas tax). Then, if m miles are travelled, the cost of the travel increases 0.85*m

When measuring the effects of a new diuretic medication, hourly urine output represents the ratio level of measurement.

What is ratio level of measurement?

Ratio level of measurement is a type of measurement that features a true zero point, meaning that the value 0 represents the absence of the characteristic being measured.

Some examples of ratio level measurements include weight, height, length, distance, speed, and many others. In this case, the hourly urine output of subjects is measured to determine the effects of a new diuretic medication.

The hourly urine output is a ratio measurement because it has a true zero point, which is the absence of urine output. In other words, if there is no urine output, the value would be 0, which represents the absence of the characteristic being measured.

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The difference between the actual number of counties in Texas and Zane's rounded number of counties can be found by subtracting Zane's rounded number from the actual number. Let's represent the actual number of counties as "x" and Zane's rounded number as "y". The equation representing the difference is x - y.

Let's assume that the actual number of counties in Texas is "x". Zane rounds the number to the nearest ten, so his rounded number of counties can be represented as "y". The difference between the actual number and Zane's rounded number can be calculated by subtracting Zane's rounded number from the actual number, which gives us the equation x - y. Substituting the given values, where x = 254 (actual number of counties) and y is the rounded number, we can find the difference.

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Answer:

(top to bottom)104.04...6800...272...3

Step-by-step explanation:

68 can go into 7075, 104 times.

68 goes into 275 4 times.

275-272=3

By using Pythagorean theorem, we can find the third side of right angle triangle.

Sin Q = \(\frac{PR}{QR}\) = \(\frac{14}{50}\) = \(\frac{7}{25}\), Cos Q = \(\frac{PQ}{QR}\) = \(\frac{48}{50}\) = \(\frac{24}{25}\), Tan Q = \(\frac{PR}{PQ}\) = \(\frac{14}{48}\) = \(\frac{7}{24}\)

Sin R = \(\frac{PQ}{QR}\) = \(\frac{48}{50}\) =    \(\frac{24}{25}\), Cos R = \(\frac{PR}{QR}\) = \(\frac{14}{50}\) =   \(\frac{7}{25}\), Tan R = \(\frac{PQ}{PR}\) = \(\frac{48}{14}\) = \(\frac{24}{7}\)

The right triangle's three sides are related in accordance with the Pythagorean theorem, also referred to as Pythagoras' theorem, which is a basic Euclidean geometry principle.

Trigonometric refers to the branch of mathematics that deals with the relationships between the sides and angles of triangles, particularly the trigonometric functions (sine, cosine, tangent, etc.) that are used to solve problems involving these relationships.

According to given information:

\(QR^{2}= PR^{2}+ PQ^{2}\)

\(PQ = \sqrt{QR^{2} -PR^{2} }\)

\(PQ = \sqrt{50^{2} -14^{2} }\) = 48

Basic Trigonometric formulas,

Sin θ = \(\frac{Opposite side}{Hypotenuse}\)

Cos θ = \(\frac{Adjacent side}{Hypotenuse}\)

Tan θ = \(\frac{Opposite side}{Adjacent side}\)

Sin Q = \(\frac{PR}{QR}\) = \(\frac{14}{50}\) = \(\frac{7}{25}\)

Cos Q = \(\frac{PQ}{QR}\) = \(\frac{48}{50}\) = \(\frac{24}{25}\)

Tan Q = \(\frac{PR}{PQ}\) = \(\frac{14}{48}\) = \(\frac{7}{24}\)

Sin R = \(\frac{PQ}{QR}\) = \(\frac{48}{50}\) =    \(\frac{24}{25}\)

Cos R = \(\frac{PR}{QR}\) = \(\frac{14}{50}\) =   \(\frac{7}{25}\)

Tan R = \(\frac{PQ}{PR}\) = \(\frac{48}{14}\) = \(\frac{24}{7}\)

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Answer:

8 minutes

Step-by-step explanation:

since  y represents the number of equations solved, and since the question requires that you find the time when they both solved the same equations

y = y

0.75x = 0.5x + 2

0.75x - 0.5x = 2

0.25x = 2

x = 2/0.25

x = 8

Answer:

5 2/10

Step-by-step explanation:

3/5= .6, 2.6*2= 5.2, 5 2/10

Answer:

\(m=\frac{-4}{5}\)

Step-by-step explanation:

Slope Formula: \(m=\frac{y_2-y_1}{x_2-x_1}\)

Simply plug in 2 coordinates into the slope formula to find slope m:

(-3, 1)

(2, -3)

\(m=\frac{-3-1}{2-(-3)}\)

\(m=\frac{-4}{2+3}\)

\(m=\frac{-4}{5}\)

The length of the curve y = 2 - 3x, -2 ≤ x ≤ 1 is equal to the length of the line segment joining the points (1, -1) and (-2, 8), which is 3√10 units.

To find the length of the curve y = 2 - 3x, -2 ≤ x ≤ 1 using the arc length formula, we need to integrate the expression for the differential arc length ds over the given interval: ds = √(1 + (dy/dx)^2) dx

First, we need to find dy/dx by differentiating y = 2 - 3x with respect to x: dy/dx = -3

Substituting this value in the expression for ds, we get: ds = √(1 + (-3)^2) dx = √10 dx

Now, we can integrate both sides of the equation to find the length of the curve: length of curve = ∫(-2)^(1) ds

= ∫(-2)^(1) √10 dx

= √10 [x]_(-2)^(1)

= √10 (1 - (-2))

= √10 * 3

= 3√10

Therefore, the length of the curve y = 2 - 3x, -2 ≤ x ≤ 1 is 3√10 units.

We can also note that the curve y = 2 - 3x is a line with a slope of -3, passing through the points (1, -1) and (-2, 8). We can find the length of this line segment using the distance formula: d = √[(x2 - x1)^2 + (y2 - y1)^2]

= √[(1 - (-2))^2 + ((-1) - 8)^2]

= √(9 + 81)

= √90

= 3√10

Therefore, the length of the curve y = 2 - 3x, -2 ≤ x ≤ 1 is equal to the length of the line segment joining the points (1, -1) and (-2, 8), which is 3√10 units.

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The equation of the  given model is y = 13.16x + 251.05

First choose two point

The first point = (44, 830)

The second point = (63, 1080)

The slope of the line m = \(\frac{y_2-y_1}{x_2-x_1}\)

Substitute the values in the equation

The  slope of the line = (1080-830) / (63 - 44)

= 250 / 19

Consider the point (44, 830)

The point slope form is

\(y-y_1=m(x-x_1)\)

Where m is the slope of the line

y - 830 = 250/19(x - 44)

y - 830 = (250/19)x - 11000/19

y = (250/19)x - 11000/19 + 830

y = 250/19 x + 4770/19

y = 13.16x + 251.05

Hence, the equation of the  given model is y = 13.16x + 251.05

The complete question is

The table shows the fat content and calories for the burgers at a fast food chain.

Fat (g) 25 44 63 32 37 20 11 52

Calories 590 830 1080 680 750 420 310 820

Write the best fit line that models the impact of fat content on calories. Explain how you got your answer.

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The solution to the variable x is 12 and the measure of ∠B is 48°.

∠A = 5x−12°

∠B = 2x+24°

Angle A and Angle B are congruent angles.

Congruent angles are angles with the same or equal measures.

So,

∠A = ∠B

5x - 12 = 2x + 24

5x - 2x = 24 + 12

3x = 36

divide both sides by 3

x = 36/3

x = 12

So therefore,

∠A = 5x−12°

= 5(12) - 12

= 60 - 12

= 48°

∠B = 2x+24°

= 2(12) + 24

= 24 + 24

= 48°

Therefore, since ∠A and ∠B are congruent, the measure of ∠A and ∠B is 48° respectively.

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Answer:

19.4285714286 Step-by-step explanation: 272 divided by 14 can be calculated as follows. 272/14 math problems division

Answer:

\(f^{-1}(x)=\sqrt[3]{x}-6\)

Step-by-step explanation:

\(f(x)=(x+6)^3\)

\(y=(x+6)^3\)

\(x=(y+6)^3\)

\(\sqrt[3]{x}=y+6\)

\(\sqrt[3]{x}-6=y\)

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The correct option is "The population is the total number of people who go to the mall, and the sample is the first 300 people at the mall."

The total number of people who visit the mall in this instance constitutes the population, which is the complete group of people we are interested in investigating or drawing conclusions about. The first 300 people to visit the mall were surveyed about their favourite food court restaurant, whereas the sample, on the other hand, refers to a subset of the population chosen to reflect the population and to provide information about it.

It's crucial to keep in mind that the 300-person sample might not accurately reflect the whole population of mall-goers, since some demographic groups might be more inclined to attend the mall at particular times of the day or week. However, the surveyors made an effort to reduce any bias that might have affected the sample by choosing individuals at random from the first 300 persons to enter the mall.

In addition, the study only asks respondents about their favourite restaurant in the food court, thus it might not be able to give a complete picture of their dining preferences. The survey's findings may still be helpful in deciding what kinds of restaurants to include in the food court or in determining the level of popularity of particular eateries.

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Answer:x − x^{2} − 1.

Step-by-step explanation:

.

Answer:

acute

Step-by-step explanation:

Answer:

Complementary angle pair is here working