Please help me
what is the premiter of the semi circle​

Answer:

The line of best fit is a line that will have the same amount of point on each side so you should draw a straight line and then make sure it has the same amount of point on each side. To calculate the slope use Y2-Y1/X2-X1, Y-intercept is the point that intercepts the Y-intercept.

My opinion

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

i think you just do 7x-10=12x and that will solve for x. You can insert the equation into math-way and it will give you an answer.

Answer:

167°

Step-by-step explanation:

<LMN = <LMT + <TMN

23° + 144° = 167°

<LMN = 167°

An equation of the least square the three decimal places the predicted length of a 7-pound baby is approximately -441 inches.

The equation of the least squares regression line use the given data points for birth weight (X) and length in inches (Y). The equation of the least squares regression line is in the form

Y = a + bX

where "a" is the y-intercept and "b" is the slope of the line.

To calculate the slope (b), to use the formulas

b = (ΣXY - (ΣX)(ΣY)/n) / (ΣX² - (ΣX)²/n)

To calculate the y-intercept (a), use the formula

a = (ΣY - b(ΣX))/n

calculate these values step by step

First, calculate the necessary summations

ΣX = 8 + 4 + 3 + 4 + 3 + 10 + 9 + 4 + 6 + 7 = 58

ΣY = 18 + 16 + 16 + 16 + 15 + 19 + 20 + 15 + 16 + 16 = 167

ΣXY = (8 × 18) + (4 × 16) + (3 × 16) + (4 ×16) + (3 × 15) + (10 × 19) + (9 × 20) + (4 × 15) + (6 × 16) + (7 × 16) = 961

calculate the values of b and a

n = 10 (number of data points)

b = (ΣXY - (ΣX)(ΣY)/n) / (ΣX² - (ΣX)²/n)

= (961 - (58 × 167)/10) / (ΣX² - (ΣX)²/n)

= (961 - (9664)/10) / (ΣX² - (58)²/10)

= -66.6

a = (ΣY - b(ΣX))/n

= (167 - (-66.6) × 58) / 10

= 24.2

Therefore, the equation of the least squares regression line is

Y = 24.2 - 66.6X

To predict the length of a 7-pound baby using the regression equation, substitute X = 7 into the equation

Y = 24.2 - 66.6 × 7

= 24.2 - 465.2

= -441

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Answer:

B. 68°

Step-by-step explanation:

Since, opposite sides of the quadrilateral MNPQ are parallel.

Therefore, it is a parallelogram.

Measures of the opposite angles of a parallelogram are equal.

So,

(6x - 2)° = (4x + 36)°

6x - 2 = 4x + 36

6x - 4x = 36 + 2

2x = 38

x = 38/2

x = 19

\(m\angle M = (6x - 2)\degree \\ \\ m\angle M = (6 \times 19- 2)\degree \\ \\ m\angle M = (114- 2)\degree \\ \\ m\angle M =112\degree \\ \\ \because m\angle M + m\angle N = 180\degree \\ (adjacent \: angles) \\ \\ \therefore m\angle N = 180\degree - m\angle M \\ \\ \therefore m\angle N = 180\degree - 112 \degree \\ \\ \therefore m \angle N = 68\degree \)

Answer: yes it is

Step-by-step explanation:

To construct a confidence interval for the proportion of defectives, we should use the plus four method.

Since the sample size is 20, which is not very large, the large-sample interval is not appropriate. Instep, we ought to utilize a strategy that's suitable for little test sizes. 

The plus four method is one such method that is commonly used when the sample size is small. Therefore, to construct a confidence interval for the proportion of defectives, we should use the plus four method.

The plus four strategies may be a strategy for building a certainty interim for an extent when the test estimate is little.

To utilize this strategy, we to begin with include four fanciful perceptions to our test, two of which are flawed and two of which are not imperfect.

This increments the test estimate to 24, which permits us to utilize the typical guess to the binomial dispersion to build the certainty interim.

The equation for the certainty interim utilizing the also four strategies is:

p ± zα/2 √((p + 2) (1 - p + 2) / n + 4)

where:

p is the test extent (number of defectives/test estimate)

zα/2 is the basic esteem from the standard typical dissemination at the level of importance α/2

n is the test estimate (counting the included four nonexistent perceptions)

Therefore, to construct a confidence interval for the proportion of defectives, we should use the plus four method.

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Answer:

The correct equation should be 18 divided by 9=2

Step-by-step explanation:

By dividing the number of muffins by the number of people you get how much each person gets

The Newberry Library has 3656 more books than the Suffolk Library.

As per the question-statement, the Suffolk Library has 102,673 books while the Newberry Library has 106,329 books.

Let us assume that, the Newberry Library has "x" more books than the Suffolk Library.

We will now form a Linear Equation of single variable with "x", based on the condition mentioned in the question statement, and solving for "x", we will obtain our desired answer.

\(102673+x=106329\\or, x=(106329-102673)\\or, x=3656\\\)

That is, the Newberry Library has 3656 more books than the Suffolk Library.

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Answer:

5/8

Step-by-step explanation:

Answer:

The area of the shaded polygon is 31 square units.

Step-by-step explanation:

The procedure to calculate the area of the shaded irregular polygon is described below:

1) Calculate the area of the initial rectangle.

2) Calculate the areas of the four triangles.

3) Subtract the areas of the four triangles from the initial triangle.

\(A = (9)\cdot (6) - \frac{1}{2}\cdot (4)^{2} - \frac{1}{2}\cdot (5)\cdot (2) - \frac{1}{2}\cdot (2)^{2} - \frac{1}{2}\cdot (4)^{2}\)

\(A = 31\)

The area of the shaded polygon is 31 square units.

Given the equation:

to solve for x, first we have to move the constant 10 to the right side of the equation. When we do this, we have to change its sign to a negative sign:

Now we can divide both sides of the equation by 2 to get the following:

therefore, x = 9

The property of the average of any two odd integers being odd is true for all integers.

This is because the sum of any two odd integers is always an even integer. For example, if we take any two odd integers, say 3 and 7, then the sum of these two is 10, an even integer. Therefore, the average of 3 and 7, which is (3 + 7)/2, is also an even integer, in this case, 5.

Since all even integers are divisible by 2, the average of any two odd integers must be an odd integer.

Therefore, the property is true for all integers.


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Step-by-step explanation:

F-¹ (x)

f-¹=x-7

fx=7+1

Fx = 8 is the answer

Given: f(x) = x - 7

(a)

y = x - 7                    [make x the subject]

x = y + 7                   [this is the inverse]

f⁻¹(x) = x + 7

(b)

(f × f⁻¹)(x) = x              [go right to left in such function]

f(x + 7) = x

(x - 7) + 7 = x

x = x

Given: g(x) = 12x

(a)

y = 12x                    [make x the subject]

x = y/12                   [this is the inverse]

g⁻¹(x) = x/12

(b)

(g × g⁻¹)(x) = x              [go right to left in such function]

g(x/12) = x

12x/12 = x                    [simplify]

x = x

Answer:

7 < x

Step-by-step explanation:

-3< x-10

-3+10 < x -10+10

7< ×

hope it's helpful ❤❤❤

THANK YOU

Histograms are used to determine the empirical distribution of a variable. Therefore, option (e) is the correct one.

Histogram is used to summarize discrete or continuous data measured on an interval scale. It is often used to describe key features of the distribution of data in a practical way.

A histogram divides the range of possible values ​​in a data set into different classes or groups. For each group, a rectangle is created with a base length equal to the range of values ​​in that particular group and a length equal to the number of observations that fall into that group.

Histograms are similar to column charts, but there are no gaps between the bars. Histograms generally have equal width bars.

Thus, it can be concluded that histograms are used to determine the empirical distribution of a variable. Therefore, option (e) is the correct one.

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The function that is equivalent to y = (x + 6)^2 - 4 is y = (x + 6)^2 - 4. The expression (x + 6)^2 represents squaring the quantity (x + 6), and then subtracting 4 from the result.

The given function is y = (x + 6)^2 - 4. This function represents a quadratic equation in the form of (x + a)^2 + b, where a = 6 and b = -4.

To understand the behavior of this function, we can break it down into its components. The term (x + 6)^2 represents a parabolic curve that is shifted horizontally by 6 units to the left. The square of (x + 6) ensures that the function is always positive or zero.

The constant term -4 shifts the entire graph downward by 4 units. This means that the minimum value of the function occurs when (x + 6)^2 is equal to 4, which is when x = -6. Hence, the vertex of the parabola is at (-6, -4).

In summary, the function y = (x + 6)^2 - 4 represents a parabolic curve shifted 6 units to the left and 4 units downward, with its vertex at (-6, -4).

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Answer: 120

Step-by-step explanation:

first you distribute 5 to 11 and -17 to get (55 - 85) then you distribute 6 to 14 and -7 to now get (55-85) + (84-42) then you distribute -12 to 2 and 7 to now have (55-85) + (84-42) - ( -24 + -84) to get 120 you multiple when you distruibute for these cause its outside the parenthesis so you multiply the number by everything in the parenthesis

y=-1/5x+4 is the equation in slope-intercept form for the line with y-intercept 4 and slope -1/5

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Given,

y-intercept 4 and slope -1/5

Now y=-1/5x+4

Hence y=-1/5x+4 is the equation in slope-intercept form for the line with y-intercept 4 and slope -1/5

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Answer:

when they reach each other Elana would have gone 16 miles for 2 minutes And jada would  for a minite to reach elana

Step-by-step explanation:

(a) Set S = {(3, -1), (1, 2), (-6, 2)} is linearly independent.

(b) Set S = {(3, -6, 2), (12, -24, 8)} is linearly dependent.

(c) Set S = {(0, 0), (4, 0)} is linearly independent.

By inspection, we can determine if each of the sets is linearly dependent by observing if one vector can be written as a linear combination of the other vectors in the set.

(a) S = {(3, -1), (1, 2), (-6, 2)}:

To determine if this set is linearly dependent, we check if any of the vectors can be written as a linear combination of the others. By inspection, it is clear that none of the vectors can be written as a linear combination of the others.

Therefore, the set S is linearly independent.

(b) S = {(3, -6, 2), (12, -24, 8)}:

Again, we check if any vector in the set can be expressed as a linear combination of the others.

By inspection, we can see that the second vector is three times the first vector. Thus, the set S is linearly dependent.

(c) S = {(0, 0), (4, 0)}:

In this case, the second vector is not a scalar multiple of the first vector. Therefore, the set S is linearly independent.

In summary:

(a) Set S = {(3, -1), (1, 2), (-6, 2)} is linearly independent.

(b) Set S = {(3, -6, 2), (12, -24, 8)} is linearly dependent.

(c) Set S = {(0, 0), (4, 0)} is linearly independent.

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Answer:

Check your question well

Step-by-step explanation:

U didn't ask to draw angle p so how can we get the angle r

Answer: the answer is B: f(x) = –2(x – 5)(x – 1)

Step-by-step explanation: i took the test

Answer:ITS A

Step-by-step explanation:

cuz I got it wrong and it showed me the right answer

Answer:

20

Step-by-step explanation:

14/0.7

Answer:

Step-by-step explanation:

Your question: 70 percent of what number equals 14?

Step 1: Multiply both sides by 100 to get 7,000 and 1,400.

Step 2: Divide both sides by 70 to get 100 and 20.

Step 3: Put it into fraction form. \(\frac{20}{100}\).

Step 4: Since in percentages, you typically only go up to 100, we can remove the 100 to leave us with just 20.

Step 5: We have our answer. 70% of 20 is 14.

Hope this helps! :D

Answer:

MN = 25

Step-by-step explanation:

If LN=45, then the addition of both quantities will be 45.

LN = 3x + 2 + x + 19

3x + 2 + x + 19 = 45

4x + 21 = 45

4x = 45 - 21 = 24

x = 6

Now that we found the value of "x", we can find the lenght of MN

MN = x + 19

MN = 6 + 19

MN = 25

Hope it was helpful ;)

Answer: MN = 25

Step-by-step explanation:

Since the length is already given we just add the equations equal to it.

45 =  3x + 2 + x + 19  Combine like terms

45 = 4x + 21               Subtract 21 from both sides

24 = 4x                       Divide by 4

x = 6

Now we plug x into the equation needed.

X + 19

6 + 19 = 25

The probability that a randomly selected water specimen has a pH value between 7.5 and 8.2 is approximately 0.6287. We can calculate it in the following manner.

We are given that pH measurements of water specimens from various locations along a river basin are normally distributed with a mean of 8 and a standard deviation of 0.3. We want to find the probability that a randomly selected water specimen has a pH value between 7.5 and 8.2.

To solve this problem, we can standardize the pH values using the standard normal distribution, which has a mean of 0 and a standard deviation of 1.

First, we find the z-scores for pH values of 7.5 and 8.2 as follows:

z1 = (7.5 - 8) / 0.3 = -1.67

z2 = (8.2 - 8) / 0.3 = 0.67

Next, we use a standard normal distribution table or calculator to find the area under the curve between these two z-scores:

P(-1.67 < Z < 0.67)

Using a standard normal distribution table or calculator, we find that the area under the curve between -1.67 and 0.67 is approximately 0.6287.

Therefore, the probability that a randomly selected water specimen has a pH value between 7.5 and 8.2 is approximately 0.6287.

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I am the one who commented on your question "Who's good at Math", I am the locrival one to be specific but for me, the answer would be the first choice which is the "f(x)=400+15(x-40)". The first choice is my answer because if you compute it the equivalent is 13.3, it is also my answer because for all the choices, it is the only one positive.

Cam can run 9.3205 miles when she finishes.

mile, any of several distance measurements, such as the statute mile of 5,280 feet (1.609 km). It was derived from the Roman mille passus, or "thousand paces," which was equivalent to 5,000 Roman feet.

The term "mile" is derived from the Latin "mille passus," which means "one thousand paces," and a mile was 1,000 Roman strides, with a stride equaling two steps. In 1592, the English Parliament standardised the Mile measurement at eight furlongs (660 feet).

Cam signed up to run a 15-kilometre running race.

So, here, we will convert kilometers to miles-

I kilometer is =0.621371 miles

And, I mile =1.609344 kilometres.

Thus, converting kilometres to miles.

Simply multiply the Number of kilometres by 0.62137.

Therefore, 1 kilometre =0.621371 miles

1.5 kilometer=15*0.621371 miles =9.32057 miles

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Answer:

  yes

Step-by-step explanation:

You want a graph of P = 125 +50W.

The given equation is in slope-intercept form. The independent variable is W, and the dependent variable is P.

Usually, the independent variable is graphed on the horizontal axis, which you have done.

The dependent variable is graphed on the vertical axis, which you have done.

The axes are correctly labeled and graduated.

The "y-intercept" (P value) when the independent variable is zero is the constant in the equation, 125. You have correctly shown that on the graph.

The slope of the line is the coefficient of the independent variable (W) in the equation. You have correctly shown that P increases by 50 when W increases by 1.

Yes, you properly graphed the equation.

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