8. Which statement can be represented by the equation shown?
9x-2=8x

Answer:

Option D.

Step-by-step explanation:

Suppose that we have a set of N values:

{x₁, x₂, ..., xₙ}

The median is the value in the middle, and the mean is calculated as:

[tex]M = \frac{(x_1 + x_2 + x_3 ... + x_n)}{N}[/tex]

Because here we have "the median" then we will assume that N is odd, and there is only one median, the value "k"  (if N was even, the median would be the mean of the two middle values, that case is really similar to the case where N is odd, so solving only one of the cases is enough)

Now we add 7 to all the values greater than the median

We subtract 7 to all values smaller than the median.

Then the median remains unchanged (because we did not add nor subtract anything to the median).

The new mean will be:

[tex]M' = \frac{(x_1 - 7) + (x_2 - 7) + ... + (x_{k}) + ... + (x_n + 7)}{N} = \frac{(x_1 + x_2 + ... + x_n) + (-7)*(n/2 - 0.5) + 7*(n/2 - 0.5)}{N} = \frac{(x_1 + x_2 + ... + x_n)}{N} = M[/tex]

So the mean does not change.

Because the mean is computed as the sum of the numbers divided by N, and the mean does not change, and N does not change, then the sum of the numbers does not change.

Finally, the standard deviation is computed as:

[tex]SD = \sqrt{\frac{(x_1 - M)^2 + ... + (xn - M)^2}{N} }[/tex]

Because M does not change, if we add or subtract numbers to some of the values, the standard deviation will change (Because all the terms are squared, so the added and subtracted sevens don't cancel like in the previous cases)

Then the only value that does not have the same value in both the original and new data sets is the standard deviation.

Answer:

163.67 ( I )

Step-by-step explanation:

Answer:

y= 550/7

Step-by-step explanation:

-3=7(y-79)

-3=7y-553

-7y= -553+3

-7y= -550

y= 550/7

i wish it will be help full

The solution for the expression is:

y = 78.57

An expression is a mathematical phrase that can contain variables, constants, and mathematical operations, but does not have an equals sign. Expressions are used to represent mathematical relationships and to evaluate numerical values.

To solve for y in the expression:

-3 = 7(y - 79)

We can start by first simplifying the right-hand side of the equation by distributing the 7:

-3 = 7y - 553

Next, we can add 553 to both sides of the equation to isolate the variable on one side:

-3 + 553 = 7y

Simplifying the left-hand side gives:

550 = 7y

Finally, we can solve for y by dividing both sides by 7:

y = 550/7

Therefore, the solution for the expression is:

y = 78.57

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Answer:

The answer is 15 ounces

Step-by-step explanation:

33/4 ÷ 4 pounds.

(4 × 3 + 3)/4 ÷ 4 pounds.

15/4 ÷ 4 pounds.

15/4 × 1/4 pounds.

15/16 pounds.

Now we know that, 1 pound = 16 ounces.

So, 15/16 pounds = 15/16 × 16 ounces = 15 ounces.

Thus, The answer is 15 ounces

Answer:

900

Step-by-step explanation:

THIS IS THE CORRECT ANSWER

Answer:

The correct answer is 576

Step-by-step explanation:

Use integration to solve. Correct on edge 2021

Answer:

0.15

Step-by-step explanation:

Because 5/8 divided by 4 is 0.15.

Answer:

(-[tex]\frac{\sqrt{3}}{2}[/tex],-[tex]\frac{1}{2}[/tex])

Step-by-step explanation:

The corresponding point on the unit circle is ( -√3/2 , -1/2).

A unit circle is just a circle that has a radius of 1 unit. A unit circle can be used to define right triangle relationships known as sine, cosine and tangent. These relationships describe how angles and sides of a right triangle relate to one another.

For the given situation,

The radian measure is θ = 7pi/6

In unit circle, the radian θ = [tex]\frac{7\pi }{6}[/tex] lies in the third quadrant and it's equal degree measure is [tex]210[/tex]°.

The corresponding point for this radian measure is

( [tex]\frac{-\sqrt{3} }{2} ,\frac{-1}{2}[/tex] )

Hence we can conclude that the corresponding point on the unit circle is ( -√3/2 , -1/2).

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Answer:

Dunkin Donuts is giving away free box of 12 Donuts per family to everyone this week to support the nation during Pandemic and the cities of Greenland and the cities of Greenland and the cities of Greenland and the cities of Greenland and the cities of Greenland and the cities of Greenland

Answer: you need to add a

Step-by-step explanation:

Answer:

9.2 x 10^8 = 920,000,000 and 4.6 x 10^4 = 46,000

920,000,000:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

9.2  ×  10 ^8

46,000:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

4.6  ×  10 ^4

Step-by-step explanation:

I hope that this answer has helped you to understand your question asked. If you have any further questions please put them below.

Have a great day/night!

Answer:

1,408 packs can be made, and 2 pens will be left out.

Step-by-step explanation:

Given that a manufacturer has 5,634 pens to divide into packs of 4 pens, and the manufacturer makes as many packs as possible, to determine how many packs of pens does the manufacturer make, and how many pens are left over, the following must be done calculation:

5.634 / 4 = X

1,408.5 = X

5,634 - (1,408 x 4) = X

5.634 - 5.632 = X

2 = X

Therefore, 1,408 packs can be made, and 2 pens will be left out.

Answer: 1,408 packs can be made and 2 will be left out

Step-by-step explanation:

Answer:

1 1/9

I THINK

HOPE IT HELPED

Answer:

30

Step-by-step explanation:

Volume=whl=2·5·3=30

Answer:

4

Step-by-step explanation:

Answer:

A= 47.09 degrees

a= 16

B=74 degrees

b=21

C=58.91 degrees

c=18.71

3.)Angle A for triangle ABC = 39.99degrees

Step-by-step explanation:

Answer:

4 additional days.

Step-by-step explanation:

So the total charge is $575.

It costs $355 for 1 week of use of the van.

1 week is 7 days.

It costs $55 for each extra day of use of the van.

575=55d+355

d is for the unknown extra amount of days.

subtract 355 from both sides

220=55d

divide by 55 on both sides

4=d

So, the Dakotas used the van for 4 additional days. So in total the used the van for 4+7 days.

4+7=11 total days.

But the answer to the question is 4 days, because it specifically ask for additional days.

Answer:

D. 4 root 113

Step-by-step explanation:

we have to use Pythagorean Theorem which is

a^2 + b^2 = c^2

where a and b are legs of the triangle that are 45° apart and c is the hypotenuse.

now we just plug in our values.

a^2 + (9)^2 = (47)^2

a^2 + 81 = 2209

now we're gonna solve for A (the missing side)

a^2 = 2128

now we square root both sides to undo the square on A

root(a^2) = root(2128)

because 2128 isn't a pretty root, we have to simplify it

a = 4 root(133)

Answer:

Step-by-step explanation:

4 is the correct answer

Answer:

Left Tailed

Step-by-step explanation :

Hypothesis Testing is done to test statistical significance of a mathematical  assumption. Null Hypothesis is neutral hypothesis, Alternate Hypothesis shows deviation from neutral (null) hypothesis.

Null Hypothesis [H0] : Mean TV time = 21.6 hours

Alternate Hypothesis [H1] : Mean TV time < 21.6 hours

In left tailed test, alternate hypothesis states value less than null hypothesis assumed value. In right tailed test, alternate hypothesis states value greater than null hypothesis assumed value. In two tailed test, alternate hypothesis states value unequal (greater or less than) null hypothesis assumed value.

So, this case has left tailed test.

Answer: A

Step-by-step explanation: take the square root which is approximately 6.86. This number is between 6 and 7

Hope this helps

The number [tex]\sqrt{43}[/tex] lies between [tex]6[/tex] and  [tex]7[/tex], where the [tex]\sqrt{43}[/tex] is [tex]6.557438[/tex] .

When a number is multiplied by itself, it gives the original number. Thus the number is a square root.

Example: [tex]\sqrt{3} \times \sqrt{3} = 3[/tex].

The square root of a negative number is not a real number. They are called imaginary numbers. The square root of a number is either equal to or less than that number except in the case of  [tex]0[/tex]. The square root of  [tex]0[/tex] is  [tex]0[/tex]  only.

The value of  [tex]\sqrt{43}[/tex] is [tex]6.557438[/tex], which comes between the square root of [tex]36[/tex] , i.e. [tex]6[/tex] , and square root of [tex]49[/tex]  i.e.  [tex]7[/tex].

Thus, [tex]\sqrt{43}[/tex] lies between [tex]6[/tex] and [tex]7[/tex].

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Let a be the first term in the sequence. If r is the ratio between consecutive terms, then the second term is ar, the third term is ar ^2, the fourth is ar ^3, and so on, up to the n-th term ar ^(n - 1).

So the third, fourth, and fifth terms are such that

ar ^2 = 18

ar ^3 = 27

ar ^4 = 81/2

Solve for a and r :

(ar ^3) / (ar ^2) = 27/18   =>   r = 3/2

ar ^2 = a (3/2)^2 = 9/4 a = 18   =>   a = 8

Then the n-th term in the sequence is

ar ^(n - 1) = 9 (3/2)^(n - 1)

You can rewrite this by first rewriting 9 = 3^2, then

9 (3/2)^(n - 1) = 3^2 * 3^(n - 1) / 2^(n - 1) = 3^(n + 1)/2^(n - 1)

Answer:nice

Step-by-step explanation:

Answer:was this

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

When you have Triangles, you have to divide your answer by two. So first, Multiply 3 x 5, which is 15. But you need to divide by two, so 15 ÷ 2 is 7.5. Then, Multiply 7.5 x 12, and now you have 90. Hope this helps!

Answer:

your answer is 406.

Step-by-step explanation:

4/5 x 10 will equal to 8. 8 times 17 equals 406.

The statements that are correct regarding the chi-square goodness-of-fit test are: II and III only.

A chi-square goodness-of-fit test can be described as one that determines whether the sample data is representative of the full population.

The following conditions for the use of the chi-square goodness-of-fit test include:

Therefore, the statements that are correct regarding the chi-square goodness-of-fit test are: II and III only.

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Answer:

II only.

Step-by-step explanation:

In chi-square GOF tests, all expected counts must be at least 5, not at least 2, so the first option is already out of the equation.

In chi-square GOF tests, the df is found with (r-1)(c-1), not n-5, so the last option is also out of the equation.

The only one left is II, and it is true that in the conditions, the observations must be from simple random samples.

Answer:

may 90/100

june 32/100 multiply by 4

july 22/100

august 29/100

September 8/100 multiply by 4

i didnt understand the quastion but least means the Lowest number that mean the answer is september

Answer:

Step-by-step explanation:

y = x^2 - 2x - 4

Convert to vertex form:

y = (x - 1)^2 - 1 - 4

y = (x - 1)^2 - 5

From this we conclude that there is a minimum vertex at (1, -5). It is a minimum because the coefficient of x^2 is positive.

It looks like a letter U  and its symmetrical about the line x = 1.

You can plot 3 more points at say, where x = -2  ( and y = (-2)^2 - 2(-2) - 4)

and x = 4 ( y = 4^2 - 2(4) - 4 ) . Also where x = 0 and y = -4.

then draw the graph through these 3 points and the vertex.