on exam 1, hakina scored 80 and student exam scores for the class were distributed n(75,6). on exam 2, hakina scored 85 and student exam scores for the class were distributed n(81,5). on exam 3, hakina scored 87 and student exam scores for the class were distributed n(84,4). relative to the class, on which exam did hakina score the highest grade?

Answer:

1. Take the number after the rise and divide it by 1.02.

2. 52/1.3

3. 135 *1.1

4. 37.40*1.45

Step-by-step explanation:

Answer:

Step-by-step explanation:

Solution,

If you mean SOV then;

Elements of SOV are {b,d,e,f,g,j,k,m,o,p,q,r,s,u,v,w,x,y,z}

If you mean S∪B then;

Elements of S∪B are {c,h,i,n,a,t,l,y}

Hope it will help you.

Answer:

301+

Step-by-step explanation:

The answer can be anything above 300. This means the answer could be 301, or 400, or 350000000000, any of those are correct.

Answer:

the correct answer is d.

Step-by-step explanation:

i hope this helps :)

Answer:

D.

Step-by-step explanation:

The line crosses the x-axis at 4 and the y-axis at -2.

Answer: D.

Approximately 134.375 square feet of the lawn is not being watered.  To find out how much of the lawn is not being watered, we need to calculate the area of the lawn and subtract the area of the circular area being watered by the sprinkler.

The area of a square is given by the formula: Area = side^2

In this case, the side of the square lawn is 25 feet, so the area of the lawn is 25^2 = 625 square feet.

The diameter of the circular area being watered is equal to the length of the lawn, which is 25 feet. The radius of the circle is half the diameter, so the radius is 25/2 = 12.5 feet.

The area of a circle is given by the formula: Area = π * radius^2

Substituting the values into the formula:

Area = 3.14 * (12.5)^2

= 3.14 * 156.25

= 490.625 square feet

Therefore, the area of the circular area being watered is approximately 490.625 square feet.

To find the area of the lawn not being watered, we subtract the area of the circular area from the total area of the lawn:

Area not watered = Area of lawn - Area of circular area

= 625 - 490.625

= 134.375 square feet

In conclusion, approximately 134.375 square feet of the lawn is not being watered. This calculation is based on the given dimensions of the lawn and the assumption that the sprinkler waters a circular area with a diameter equal to the length of the lawn.

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The lengths of a triangle must satisfy the triangle inequality which states that the sum of any two sides must be greater than the third side.

For option A:

5 + 9 = 14, which satisfies the triangle inequality. However, 5 + 14 = 19, which is not greater than 9. Therefore, this set of numbers does not satisfy the triangle inequality.

For option B:

7 + 7 = 14, which is less than 15. Therefore, this set of numbers does not satisfy the triangle inequality.

For option C:

1 + 2 = 3, which satisfies the triangle inequality. However, 1 + 4 = 5, which is not greater than 2. Therefore, this set of numbers does not satisfy the triangle inequality.

For option D:

3 + 6 = 9, which satisfies the triangle inequality. 3 + 8 = 11 and 6 + 8 = 14, both of which are greater than 8. Therefore, this set of numbers satisfies the triangle inequality.

So, the numbers 3, 6, and 8 could represent the lengths of a triangle. Therefore, the answer is option D.

Answer:

A and D

Step-by-step explanation:

you would have to test each option using the triangle inequality theorem

which is when the sum of any two sides of the triangle are greater than or equal to the third side

A)  5+9 \(\geq\) 14  true

     5+14 \(\geq\) 9  true

     14+9 \(\geq\) 5  true

B)  7+7 \(\geq\) 15  false    This answer can be eliminated

C)  1+2 \(\geq\) 4    false     This answer can be eliminated

D)  3+6 \(\geq\) 9  true

     3+8 \(\geq\) 6   true

     6+9 \(\geq\) 3   true      

In Lesson 7.06 the reader is asked to open the eBook and read pgs. 4-9. In this

reading it introduces Badminton and describes how a player must be able to move

quickly as the "shuttle" or "birdie" and fly at speeds of up to 200 mph. The speed they reference is option D. 200 mph

The object of the game is to hit buckets (also known as birds) over the net with the racket and hit them back and forth to score points. Success in badminton requires stamina, speed, agility and strategy. It is also a popular Olympic sport. The speed of a badminton shuttlecock can reach up to 200 mph when hit by professional players.

Therefore, the correct answer is as given above. It could then be concluded that option D. 200mph is the speed they reference.

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Answer:

4

Step-by-step explanation:

960/240 equals 4

So, Lana gave away 26.32% of he Pokemon cards  to her little brother.

To find the percentage of cards Lana gave away, we can use the formula:(Quantity given away / Total quantity) * 100.

In this case, Lana gave away 125 cards out of her total collection of 475 cards.Plugging these values into the formula, we have:

(125 / 475) * 100 = 0.2632 * 100 = 26.32%.

Lana gave away 26.32% of her Pokemon cards to her little brother.

Alternatively, we can calculate the percentage by subtracting the remaining cards from the total and finding the ratio:

Percentage given away

= (Cards given away / Total cards) * 100

= (125 / 475) * 100

= 26.32%.

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.39

Pls mark brainliest!:)

Just take it in co-ordinate pairs

Take two points

Slope:-

\(\\ \sf\longmapsto m=\dfrac{40-60}{41-58}\)

\(\\ \sf\longmapsto m=\dfrac{-20}{-17}\)

\(\\ \sf\longmapsto m=\dfrac{20}{17}\)

\(\\ \sf\longmapsto m\approx 1.2\)

Equation of line in point slope form

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

\(\\ \sf\longmapsto y-60=1.2(x-58)\)

\(\\ \sf\longmapsto y-60=1.2x-69.6\)

\(\\ \sf\longmapsto 1.2x-y-9.6=0\)

\(\\ \sf\longmapsto y=1.2x-9.6\)

Graph attached

Answer:

Here's what I get.

Step-by-step explanation:

1. Representation of data

I used Excel to create a scatterplot of the data, draw the line of best fit, and print the regression equation.

2. Line of best fit

(a) Variables

I chose arm span as the dependent variable (y-axis) and height as the independent variable (x-axis).

It seems to me that arm span depends on your height rather than the other way around.

(b) Regression equation

The calculation is easy but tedious, so I asked Excel to do it.

For the equation y = ax + b, the formulas are

(DOWN BELOW)

This gave the regression equation:

y = 1.0595x - 4.1524

(c) Interpretation

The line shows how arm span depends on height.

The slope of the line says that arm span increases about 6 % faster than height.

The y-intercept is -4. If your height is zero, your arm length is -4 in (both are impossible).

(d) Residuals

The residuals appear to be evenly distributed above and below the predicted values.

A graph of all the residuals confirms this observation.  

The equation usually predicts arm span to within 4 in.

(e) Predictions

(i) Height of person with 66 in arm span

(ii) Arm span of 74 in tall person

Answer:

D) absolute value

The absolute value is always positive and it is the distance from 0.

For example, -5 and 5 both have an absolute value of 5.

Step-by-step explanation:

The 90% confidence interval is: (2.51, 3.22)

It is a boundary of values which is eventually to comprise a population value with a certain degree of confidence. It is usually shown as a percentage whereby a population means lies within the upper and lower limit of the provided confidence interval.

We have the following information :

The level of significance is calculated as:

\(\alpha =1-c\\\\\alpha =1-0.90\\\\\alpha =0.10\)

The degrees of freedom for the case is:

df = n - 1

df = 15 - 1

df = 14

The 90% confidence interval is calculated as:

=x(bar) ±\(t_\frac{\alpha }{2}\), df \(\frac{s}{\sqrt{n} }\)

= 2.86 ±\(t_\frac{0.10 }{2}\), 14 \(\frac{0.78}{\sqrt{15} }\)

= 2.86 ± 1.761 × \(\frac{0.78}{\sqrt{15} }\)

= 2.86 ± 0.3547

= (2.51, 3.22)

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Answer:

The clock minutes rotate 270 degrees in 45 minutes.

While rotating, the clock's hands are seen to move at a speed of six degrees per minute.

The number of degrees for a clock minute is solved by

60 minutes  = 360 degrees

1 minute = ?

cross multiplying

60 * ? = 360

? = 360 / 60

? = 6

hence 1 minute is 6 degrees

The formula to use to get the calculation is multiplying the number of minutes by 6

Number of degrees in 45 minutes = 45 * 6

Number of degrees in 45 minutes = 270 degrees

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The equation for this quadratic function in vertex form is y = 9(x - 0)² - 4.

the equation for this quadratic function in standard form is y = 9x² - 4.

The equation for this quadratic function in factored form is y = (3x - 2)(3x + 2).

a. To write the equation for a quadratic function in vertex form, we use the formula:

y = a(x - h)^2 + k

where (h, k) is the vertex of the parabola.

Given that the vertex is (0, -4) and the a-value is 9, we substitute these values into the formula to get:

y = 9(x - 0)^2 - 4

y = 9x^2 - 4

So the equation for this quadratic function in vertex form is y = 9(x - 0)^2 - 4.

b. To write the equation for a quadratic function in standard form, we use the formula:

y = ax^2 + bx + c

We can expand the equation in vertex form to get it in standard form:

y = 9x^2 - 4

y = 9x^2 + 0x - 4

So the equation for this quadratic function in standard form is y = 9x^2 + 0x - 4.

c. To write the equation for a quadratic function in factored form, we can factor out the leading coefficient:

y = 9x^2 - 4

y = (3x)^2 - 2^2

y = (3x - 2)(3x + 2)

So the equation for this quadratic function in factored form is y = (3x - 2)(3x + 2).

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Answer:

8.333333333333333

Step-by-step explanation:

Answer:

25/3 - Or in a simpler form 8 1/3

Step-by-step explanation:

I multiplied 15 by 5/9. I hope this helps :)

Answer:

−42x−40

Step-by-step explanation:

Answer:

3/50 of a gallon

Step-by-step explanation:

50 / 1 = 3 / x

cross-multiply:

50x = 3

x = 3/50

Answer:

(-1, -3), (-2, -5), (-5, -8),(-8, -5), (-9, -3)

Step-by-step explanation:

These are the options of points to pic from. :)

have a good day.

Answer:

D.

Step-by-step explanation:

Circumference of a circle is also referred to as the perimeter bordering the circle.

Thus, it is given as:

C = 2πr

C is circumference

r = half of the diameter of the circle = r

This formula used in finding the circumference of a circle is C = 2πr

Answer:

Option B is correct

Step-by-step explanation:

Hope that helped u

Answer:

yay lol

Step-by-step explanation:

Answer:

(-3, -2) and (-3, 4). Hope that helped!

Step-by-step explanation:

The equation of line in slope intercept form is, \(y=\frac{3}{4}x+9\).

What is slope point form of the line?

A line's point slope form equation is y - y1 = m. (x – x1). Consequently,

y - 0 = m(x = 0), or y = mx, is the equation of a line passing through the origin with a slope of m.

Let the line passes through the point (-4, 6) and having slope 3/4.

We know that the equation of line passes through the point \((x_1, y_1)\) and having slope m is,

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

Here, \((x_1, y_1) = (-4, 6)\)  and slope \(m = \frac{3}{4}\)

Plug the values in the above equation.

⇒

\(y-6=\frac{3}{4}(x-(-4))\\ y - 6 = \frac{3}{4}(x + 4)\\ y-6=\frac{3}{4} x + 3\\y = \frac{3}{4}x+3+6\\ y=\frac{3}{4}x+9\)

Hence, the equation of line in slope intercept form is, \(y=\frac{3}{4}x+9\).

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The integral becomes:

∬T sin(π(x−2y)²) dA = ∫[1/7, 1/3] ∫[-3x, -x/5] sin(π(x−2y)²) dy dx

We have,

To evaluate the double integral ∬T sin(π(x−2y)²) dA over the triangle T bounded by the lines x − 2y = 1, y = −3x, and 5y = −x, we need to determine the limits of integration.

Let's start by finding the intersection points of the given lines:

x − 2y = 1 and y = −3x:

Substituting y=−3x into x−2y=1:

x−2(−3x) = 1

x+6x = 1

7x = 1

x = 1/7

Therefore, the intersection point is (1/7, -3/7).

x−2y=1 and 5y=−x:

Substituting 5y = −x into x − 2y = 1:

x−2(5y) = 1

x−10y = 1

Rearranging the equation:

x = 1 + 10y

Substituting this into 5y=−x:

5y = −(1 + 10y)

5y = −1 − 10y

15y = -1

y = -1/15

Substituting y into x = 1 + 10y:

x = 1 + 10(-1/15)

x = 1 - 2/3

x = 1/3

Therefore, the intersection point is (1/3, -1/15).

Now, we can set up the limits of integration:

For y, the lower limit is given by the line y=−3x, and the upper limit is given by the line 5y = −x.

So, the limits for y are -3x to -x/5.

For x, the lower limit is the x-coordinate of the intersection points, which is 1/7, and the upper limit is the x-coordinate of the other intersection point, which is 1/3.

Thus,

The integral becomes:

∬T sin(π(x−2y)²) dA = ∫[1/7, 1/3] ∫[-3x, -x/5] sin(π(x−2y)²) dy dx

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Answer:

6 Total lemons

Step-by-step explanation:

1 1/2 lemons per 1 liter of lemonade

1 1/2 times 4

= 6 total lemons

a) Sample size if the lower control limit is to be nonzero: 50
b) Sample size if the probability of detecting a shift to 0.04 is to be 0.50: 100

a) How large should the sample size be if the lower control limit is to be nonzero?

n = (2σ / d)²We know that:

Center line (CL) = 0.01

Sigma (σ) = LCL = 0.005

d = Centerline - LCL = 0.01 - 0.005 = 0.005

Substituting the values in the formula, we get

n = (2 * 0.005 / 0.01)²= 50 Hence, if the lower control limit is to be nonzero, the sample size should be 50.

b) How large should the sample size be if we wish the probability of detecting a shift to 0.04 to be 0.50?

The probability of detecting a shift to 0.04 is denoted by β and is calculated using the following formula:

β = Φ [(-Zα/2 + Zβ) / √ (p₀q₀/n)], Where, Φ is the standard normal distribution function, Zα/2 is the critical value for the normal distribution at the (α/2)th percentile, Zβ is the critical value for the normal distribution at the βth percentile, p₀ is the assumed proportion of nonconforming items, q₀ is 1 – p₀, and n is the sample size.

In order to determine the sample size, we must first select a value for β. If we select a value for β of 0.50, then β = 0.50. This implies that we have a 50% chance of detecting a shift if one occurs. Since the exact value for p₀ is unknown, we assume that p₀ = 0.01, which is equal to the center line.

n = (Zα/2 + Zβ)² p₀q₀ / β², Substituting the values in the formula, we get,

n = (Zα/2 + Zβ)² p₀q₀ / β²= (1.96 + 0.674)² (0.01) (0.99) / 0.50²= 99.7 ≈ 100

Hence, if we wish the probability of detecting a shift to 0.04 to be 0.50, the sample size should be 100.

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26 possible letters for each of the first two positions and 10 possible digits for each of the last 4 positions gives a total of 676,000,000 license plates.

(1) 26 possible letters for each of the first two positions and 10 possible digits for each of the last 4 positions gives a total of

26 x 26 x 10 x 10 x 10 x 10 = 676,000,000 license plates.

(2) The number of possible license plates where the digits must be different is the number of permutations of 10 items taken 4 at a time, or 10P4 = 5040. Multiplying by 26 x 26 gives a total of

5040 x 26 x 26 = 3,636,160 possible license plates.

(3) To find the number of license plates that begin with "A" and don't have a 7, we first find the number of license plates that start with "A" and don't have any restriction on the last 4 digits. This is

26 x 10 x 10 x 10 x 10 = 676,000

Then, we find the number of license plates that have a 7, which is

9 x 26 x 10 x 10 = 23,760

Subtracting this from the total number of license plates that start with "A" gives us

676,000 - 23,760 = 652,240 possible license plates.

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The correct option to represent the sample data is: option (A) . Since the data is categorical and discrete, a bar graph is the most appropriate way to display the data

A bar graph, also known as a bar chart, is a graphical representation of data in which the data is presented using rectangular bars. The length or height of each bar is proportional to the value that it represents.

The correct answer is: bar graph with the title favorite sport and the x axis labeled sport and the y axis labeled number of students, with the first bar labeled baseball going to a value of 17, the second bar labeled basketball going to a value of 12, the third bar labeled tennis going to a value of 27, and the fourth bar labeled soccer going to a value of 44.

Since the data is categorical and discrete, a bar graph is the most appropriate way to display the data. The bars should be labeled with the sports and their corresponding heights should be the number of students who chose that sport.

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The probability of selecting  a girl to read the poem out loud in her class is 46.4% .

To calculate the probability of selecting a girl to read a poem out loud in a class of 28 students, we can use the formula:

Probability = Number of Desirable Outcomes / Total Number of Outcomes

Here, the desirable outcome is selecting a girl to read the poem, and the total outcomes are all the students in the class.

Number of Desirable Outcomes:

Mrs. Avery has 13 girls in her class, so there are 13 desirable outcomes.

Total Number of Outcomes:

Mrs. Avery has 28 students in her class, so there are 28 total outcomes.

Probability = Number of Desirable Outcomes / Total Number of Outcomes

Probability = 13 / 28

Probability = 0.464 or 46.4%

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Note: The complete question is -Mrs. Avery is planning to have one student read a poem out loud in class. She has a class of 28 students, consisting of 15 boys and 13 girls. What is the probability that she will select a girl to read the poem out loud?