the expected frequencies in a chi-square test . a. are always whole numbers b. can contain fractions or decimal values c. can contain both positive and negative values d. can contain fractions and negative numbers

The three forms of split are as follow: splitting , split and splits.

Explanation :

Therefore, the three forms of the split are splitting , split and splits.

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Answer:

The dimensions of the rectangle are 10 meters (L) and 7 meters (W).

Step-by-step explanation:

please give brainliest

Answer: 1/6 as a number is 0.1666, with the sixes repeating infinitely, which makes it a rational number. 1/6 = 0.1666 repeating.

Step-by-step explanation: math

Angles ∠1 and ∠7 are alternate interior angles and angle ∠4 and ∠8 are adjacent angles.

Lines are straight with little depth or width. Perpendicular lines, intersecting lines, transversal lines, and other types of lines will be covered. An angle is a shape formed by two rays emerging from a common point. In this field, you may also come across alternate and equivalent angles.

The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.

When a transversal connects two coplanar lines, alternate interior angles are generated. They are on the inside of the parallel lines, but on the outside of the transversal.

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x/3-10=8

Add 10 to each side x/3=18 Multiply by 3

Answer:

x/3 - 10 = 8

Step-by-step explanation:

It seems like you want me to provide an equation, so here it is:

10 less equates to "minus 10", or "10 minus". [-10]

Quotient refers to division, and "a number" can be replaced with a variable: x. This is our numerator. Our denominator is "3", as it states, "and 3". Finally, the "is" statement refers to equality, and we can replace this with the equal sign.

Putting these all together, you get the equation, x/3 - 10 = 8.

Answer:

9/25

Step-by-step explanation:

total students = 9 + 16 = 25

ratio = 9/25

Answer:

Step-by-step explanation:

The answer is C

We have to think about what size 0 would look like, if we observe the change between each figures we can find out the figure grows 4 every time, so we know it's always 4 each time. If we take figure 1 and remove all it's 4 green block it will be just left with 1 yellow block, which is figure 0, we have to add 1 every time we increase the size by 1.

The caffeine per ounce in the final mixture of green and instant tea is 40.08 mg.

Based on the data we know quantity of caffeine in an ounce of instant tea is 1368 mg and in green tea is 480.96 mg. So, calculating amount of caffeine in instant and green tea.

Amount of caffeine in instant tea = 24 × 57

Amount of caffeine in instant tea = 1368 mg

Amount of caffeine in green tea = 12 × 6.25

Amount of caffeine in green tea = 75 mg

Total caffeine in the mixture = 1368 + 75

Total caffeine in the mixture = 1443 mg

Total amount of mixture = 12 + 24

Total amount of mixture = 36

Amount of caffeine per ounce in the mixture = 1443/36

Amount of caffeine per ounce in the mixture = 40.08 mg

Hence, the caffeine in mixture is 40.08 mg.

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The speed or fastness based on the data of distance and time is 0.02 kilometres per second.

The intensity of fastness is measured by the speed. Concerning this, using the formula of speed to find the how fast the mentioned data indicates.The formula to calculate the speed is -

Speed = distance covered ÷ total time

The distance covered is 150 kilometres and time taken in 7200 seconds. So, the answer will state the speed in kilometres per second. Keep the values in formula to find the speed.

Speed = 150/7200

Performing division on Right Hand Side of the equation to find the speed

Speed = 0.02 kilometres per second.

The mentioned value indicates the object covers 0.02 kilometres in one second.

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If you failed to pay the minimum payment by the due date and are now being charged the penalty APR of 28.99%, your monthly interest charge on a balance of $1800 would be approximately $518.82. This is calculated as follows:

However, it is important to note that this calculation is an estimate and the actual amount of interest you would owe in one month could be different, depending on factors such as the number of days in the billing period and the daily interest rate. It is also worth noting that you were charged $6.31 in interest for purchases, which is separate from the interest charged on your unpaid balance.

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Answer:

Point-slope form:

A. y - 9 = -6(x - 9)

B. y + 6 = -3/2(x + 8)

Slope-intercept form:

A. y = -6x + 63

B. y = -3/2x - 27/2

Standard form:

A. -6x + y - 63 = 0

B. -3/2x - y + 27/2 = 0

The measure of U using the cyclic quadrilateral theorem is 104°.

Cyclic quadrilateral theorem states that the sum of the opposite angles of a cyclic quadrilateral is supplementary.

To calcculate the measure of U, we use the cyclic quadrilateral theorem.

From the diagram,

Given:

Substitute these values into equation 1 and solve for ∠U

Hence, the measure of U is 104°.

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The slope of a line through the two points is (y2-y1) / (x2 - x1).

The slope of a line:

The slope of a line is a measure of its steepness. Mathematically, the slope is calculated as "rise over run" (change in y divided by change in x).

Here we have to find the slope of the line.

Data given:

Point one has the coordinate = (x1, y1)

Point two has the coordinate = (x2, y2)

So the slope of the line(m) =( y2 - y1) / (x2 - x1)

Therefore the slope of the line is (y2- y1) / ) (x2-x1)

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The probability that a randomly selected person is either a student opposed to the change or a faculty member who has an opinion either for or against is given as follows:

31/88.

A probability is calculated as the division of the number of desired outcomes by the number of total outcomes.

The total number of outcomes in this problem is given as follows:

176 people.

The desired outcomes are given as follows:

(these outcomes are both calculated from the data given by the table).

Hence the probability is calculated as follows:

p = (41 + 21)/176 = 62/176 = 31/88.

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Answer:

A is correct

Given:

Divide by 4

Taking square root both sides

Hence, x=60° is correct

yes Answer:

Step-by-step explanation: yes

Answer:

C

Step-by-step explanation:

[tex]\frac{5}{2}[/tex] x = y → (1)

2x + [tex]\frac{4}{5}[/tex] y = 8 → (2)

substitute y = [tex]\frac{5}{2}[/tex] x into (2)

2x + [tex]\frac{4}{5}[/tex] ([tex]\frac{5}{2}[/tex] ) = 8

2x + 2 = 8 ( subtract 2 from both sides )

2x = 6 ( divide both sides by 2 )

x = 3

substitute x = 3 into (1)

y = [tex]\frac{5}{2}[/tex] × 3 = [tex]\frac{15}{2}[/tex]

solution is (3, [tex]\frac{15}{2}[/tex] )

Answer:

b?

Step-by-step explanation:

i think b is right??/

Step-by-step explanation:

Given the angle 10 let's add 360 and see if the angle is in the interval.

[tex]10 + 360 = 370[/tex]

However,

[tex]10 - 360 = - 350[/tex]

So the coterminal angle is

-350

For question 2, subtract 360

[tex]180 - 360 = - 180[/tex]

Answer:

11 (PLEASE GIVE BRAINLIYEST)

Step-by-step explanation:

absolute value is distance from zero so |-7|=7

and 7+4 is 11

Answer:

Step-by-step explanation

Man its hard...

Answer:

(3,5)

Step-by-step explanation:

5x+3y=15

5(0)+3y=15

3y=15

divide both sides by 3 and you get y=5

5x+3(0)=15

5x=15

divide both sides by 5 and get x= 3

So then the y-int is 5 and the x-int is 3.

Answer:

Step-by-step explanation:

o find the vertex of f(x)=x2−8x+7 , there are several things you can do. You could complete the square to get the equation into vertex ...

The required value of the x in the given right angle triangle is 7.87 unit.

A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any other angle is a right angle.

In the given triangle,

The given side is 12 unit,

And the angle is 41°.

For any triangle having sides a, b and c and corresponding angles are ∠ A, ∠ B, and ∠ C.

sine formula can be given as,

[tex]\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}[/tex]

Since, in the given right angle triangle, one angle is 41° and other angle is 90°.

And their corresponding sides are x unit and 12 unit.

Therefore, sine formula can be applied here,

[tex]\frac{x}{sin41} = \frac{12}{sin90}[/tex]

[tex]\frac{x}{0.656} = \frac{12}{1}[/tex]

x = 7.87

The required value of x is 7.87 unit.

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Answer:

y = 1/5x -5

Step-by-step explanation:

Slope intercept form is y=mx + b where m is the slope and bb is the intercept. Let's find the slope first. This is rise over run, so we take the difference of two points' y-coordinates and divide it by the x-coordinates' difference.

This gives us [tex](-4--6)/(5--5)[/tex], or [tex]2/10[/tex], which simplifies to [tex]1/5[/tex]. This is our slope. Now we have y = 1/5x + b. We now plug in a point to this equation to get b. Plugging in (-25, -10) gives us [tex]-10 = 1/5*-25 + b[/tex], or [tex]-10 = -5 + b[/tex]. From this we get that b = -5. So, our equation is y = 1/5x -5

Feel free to contact me with any questions. I hope this helps!

The probability that one spin of the spinner will land in a shaded sector is 2/3.

The likelihood that something will happen is the straightforward definition of probability. When we are unsure of how an event will turn out, we might talk about the probabilities of various outcomes or how likely they are. The study of events subject to probability is referred to as statistics.

Probability is a branch of mathematics that deals with numerical representations of the likelihood of an event occurring or of a proposition being true.

When the spinner is released, there is a low likelihood that the part will rest on four.

Information: A particular spinner has equal-sized sectors, and it is equally likely to land in any of them. The remaining sectors are not coloured, and four of the sectors are shaded.

Four of the sectors are shaded, while the remaining sectors are not, according to the enigma.

The spinner has two unshaded areas and four shaded areas.

P(E)=4/6

P(E)=2/3

As a result, there is a simple 2/3 chance that the spinner will rest on four when it is spin.

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The complete question is:

"A certain spinner is divided into 6 sectors of equal size, and the spinner is equally likely to land in any sector. Four of the 6 sectors are shaded, and the remaining sectors are not shaded. What is the probability that one spin of the spinner will land in a shaded sector?"

Answer:

41

Step-by-step explanation:

NOTE:

The answer can't be a decimal number, because you can't split up cards into quarters like chocolate or bars.

METHOD 1:

Use long division to solve; 4 fits 4 times into 16, and 5 fits 4 times into 1; thus you get 41.

METHOD 2:

You could use it as a fraction, in which you will get 165/4, which as you simplify, is 41 1/4. Since there is no decimal, 1/4 must be removed.

Answer:

Green Graph:  y = x - 6

Red Graph: y = -3/2 + 7

Step-by-step explanation:

Slope intercept form is represented by the formula:

y = mx + b

m is your slope

b is the y intercept

Another thing to note is that, when m is negative, the graph will point to the left, while when m is positive in will point in the right

For the green graph, the line intercepts at -6, so that will be your b value.

the slope is positive 1 because if your count up from -6 and count across to point (1,-5) you get 1/1

Put these pieces of information in your formula and you get

y = x - 6

You can use the same process to find the equation of the red line. However, the slope will be negative since the graph is pointing to the left side of the coordinate plane.

Answer:

Graph 1:  y = x - 6

Graph 2: y = -3/2 + 7

Answer:

x = 4 ;  y = 3

Step-by-step explanation:

2x - 3(x-1) = -1

2x - 3x + 3 = -1

- x = -1 - 3

- x = -4

x = 4

y = 4-1

y = 3

In the given expansion ,the value of a = -4/3 .

Binomial Distribution:

The binomial distribution with parameters n and p is the discrete probability distribution of the number of successes in a series of n independent experiments. Each asks a yes-no question and each has its own Boolean outcome: success (probability p) or failure (probability p) (probability q = 1-p.  A single success/failure experiment is also called a Bernoulli trial or Bernoulli experiment, and a series of results is called a Bernoulli process. For one trial, n = 1, binomial distribution is Bernoulli distribution. The binomial distribution is the basis for the common binomial test of statistical significance.

In general, (A + B)⁵ = A⁵ + 5A⁴ᵇ + 10A²ᵇ*³ + 10A³ᵇ*² + 5AB⁴ + B⁵

So,

(3–2x)⁵= 3⁵ + 5*3⁴*(-2x) + 10* 3^3 *(-2x)^2 + 10*3^2*(-2x)^3 + 5*3*(-2x)^4 + (-2x)^5.

Multiplying that by (1 + ax) gives:

3^5 + 5*3^4*(-2x) + 10* 3^3 *(-2x)^2 + 10*3^2*(-2x)^3 + 5*3*(-2x)^4 + (-2x)^5 + ax(3^5 + 5*3^4*(-2x) + 10* 3^3 *(-2x)^2 + 10*3^2*(-2x)^3 + 5*3*(-2x)^4 + (-2x)^5).

In bold, we find the terms of x^2, so the coefficient of x^2 is 10*3^3*(-2)^2+a*5*3^4*(-2) = 360 - 810a

We know that this must equal 1440, so 360–810a = 1440.

Therefore a= -4/3.

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