John paid $80 for a video game. His sales tax was 4%. The total amount he paid the cashier was

Answer:

you need the farmula lol lol lol lol lol lol lol

Step-by-step explanation:

Answer:-αx-20=-14 --> \(\frac{-6}{x}\)

4=\(\frac{6}{a}\)×+5 --> a=-6

7+2ax=13---> a=\(\frac{3}{x}\)

Step-by-step explanation:

Perimeter of the parallelogram = 210 in.

Area of parallelogram = 2,484 in.²

Perimeter of parallelogram = 2(a + b), where a and b are its sides.

Area of parallelogram = (b)(h), where h is its height and b is the length of one of its bases.

Given:

a = 51 in.

b = 54 in.

h = 46 in.

Perimeter of the parallelogram = 2(54 + 51) = 210 in.

Area of parallelogram = (b)(h) = (54)(46) = 2,484 in.²

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Answer:

(c) neither odd nor Even

Step-by-step explanation: ​

f(x) odd ⇒ f(-x) = - f(x)

⇒ g(-x) = f(-x) + 2  = - f(x) + 2

Since - f(x) + 2 ≠ - f(x) - 2  and   - f(x) + 2 ≠  f(x) + 2

Then     g(-x) ≠ - g(x)         and   g(-x) ≠ g(x)

Then g is neither  odd      nor    even

The smaller triangle has its hypotenuse as 4 units and the base as 6 units

The bigger triangle has its hypotenuse as 10 units, the height as 5.8 units and the other hypotenuse as 9 units

Using similarity properties, compare the ratio of the sides as;

Compare the ratio of the bigger triangle sides to that of the smaller traingle

First find the base of the bigger triangle using the sides given and applying the pythagorean relationship as;

10^2 - 5.8^2 = a^2

100 - 33.64 = a^2

66.36 = a^2

1/2 a= 8 .15 units

a= 16.30 units

Compare ratio

a/ 6 = 5.8 / b

16.30 /6 = 5.8/ b

16.30 b = { 6 * 5.8 }

b = {6 * 5.8} / 16.30

b = 2.13 units

Answer

2.13 units

When a shape is rotated, it must be rotated through a point.

The rule of 90 degrees counterclockwise is:

\((x,y) \to (-y,x)\)

This means that:

However, Charlies transformation is incorrect.

Using points L and Q

\(L=(1,1)\)

When L is reflected across the x-axis.

The rule is:

\((x, y) \to (x, -y)\)

So, we have:

\((1, 1) \to (1, -1)\)

Next, it is dilated by 2.

The rule of this is:

\((x,y) \to k(x,y)\)

So, we have:

\((1,1) \to2 \times (1,-1)\)

\((1,1) \to (2,-2)\)

From the diagram, the coordinate of Q is:

\(Q = (2,-2)\)

Same as the calculated point

Hence, Chanel is incorrect

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Answer:

So when rotating a 90 degrees counterclockwise rotation about the origin we have to change (x, y) to (-y, x).

The discriminant of the given equation is -195 and the number of real solutions is 0.

Quadratic expressions are polynomial equations of second degree.

The general form of a quadratic equation is ax² + b x + c = 0.

(a) Discriminant of a quadratic equation of the form ax² + b x + c = 0 is b² - 4ac.

Given quadratic equation is 7k² + k + 7 = 0.

Discriminant = 1² - (4 × 7 × 7) = 1 - 196 = -195

(b) Discriminant is negative.

So there are no real solutions for the given quadratic equation.

There are two complex solutions.

Hence the value of the discriminant is negative and there are no solutions.

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One reason to compute a correlation coefficient to measure the strength of the relationship between two variables is that quantify the strength and direction of the correlation in a precise and standardized way..

When we have two variables that are related, we say that there is a correlation between them. The most common way to visually represent a correlation is by plotting the data on a scatter plot, where each point represents a pair of values for the two variables.

While a scatter plot is a useful tool to visualize the relationship between two variables, it doesn't tell us how strong or weak the correlation is. For instance, two variables might show a positive correlation, but the scatter plot might be quite dispersed, indicating that there is a lot of variability in the data. In this case, we would say that the correlation is weak. On the other hand, if the scatter plot is tightly clustered around the line, we would say that the correlation is strong.

This is where the correlation coefficient comes in. The correlation coefficient is a mathematical measure that quantifies the strength and direction of the relationship between two variables. It ranges from -1 to 1, where a value of -1 indicates a perfect negative correlation, a value of 0 indicates no correlation, and a value of 1 indicates a perfect positive correlation.

To compute the correlation coefficient, we first need to calculate the covariance between the two variables. Covariance is a measure of how much the two variables vary together, and it is defined as the sum of the products of the deviations of the values from their respective means. Once we have the covariance, we can divide it by the product of the standard deviations of the two variables to get the correlation coefficient.

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Answer:

3x-5+2y

Step-by-step explanation:

Wasnt much detail to the question so i created a random algebra expression you cannot have an equal sign for an expression because that would change it from an expression to an equation.

a. "30" in base 5 is "11".

b. "153" in base 9 is "180".

c. "1000" in base 16 is "8E3".

To convert numbers into different base systems, we need to divide the number successively by the base and record the remainders until the quotient becomes zero. The remainders, read in reverse order, form the digits of the converted number in the desired base.

a. Converting "30" into base 5 (01234):

30 divided by 5 equals 6 with a remainder of 0. The remainder is 0, so the first digit is 0.

6 divided by 5 equals 1 with a remainder of 1. The remainder is 1, so the second digit is 1.

The converted number in base 5 is "11".

b. Converting "153" into base 9 (012345678):

153 divided by 9 equals 17 with a remainder of 0. The remainder is 0, so the first digit is 0.

17 divided by 9 equals 1 with a remainder of 8. The remainder is 8, so the second digit is 8.

1 divided by 9 equals 0 with a remainder of 1. The remainder is 1, so the third digit is 1.

The converted number in base 9 is "180".

c. Converting "1000" into base 16 (0123456789ABCDEF):

To convert a number into base 16, we need to divide by 16. Let's perform the division steps:

1000 divided by 16 equals 62 with a remainder of 8. The remainder is 8, so the first digit is 8.

62 divided by 16 equals 3 with a remainder of 14. The remainder is E (since E represents 14 in base 16), so the second digit is E.

3 divided by 16 equals 0 with a remainder of 3. The remainder is 3, so the third digit is 3.

The converted number in base 16 is "8E3".

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The equation of line for the given data is y = 5x -1.

According to the given question.

We have a data of points for a equaton of line.

As we know that the standard equation of line is y = mx + b.

Where, m is the slope of line and b is the y intercept.

Since, the points which are given in the data must satisfy y = mx + b.

Therefore,

Lets take the points (1, 4) and (2, 9) and substitute it in y = mx + b to find the value of m and b.

At x = 1 and y = 4

4 = m + b ..(i)

And at x = 2 and y = 9

9 = 2m + b ..(ii)

From equation i and ii

m = 5

So, b = -5 + 4 = -1

Hence, the equation of line for the given data is y = 5x -1.

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Answer:

To find the estimated value we add all of them together then divide it by the amount of them

45.8+43.9+46.2+48.5+47.2+45.8+49.1+43.9+47.6+42.8+46.5+44.9+46.8+45.8 +44.6=689.4

now we divide it by 15 since there is 15 blocks so

689.4 divided by 15=45.96

so the average weight is 45.96

In this example, process A completed its final quantum in q4, process B completed its final quantum in q4, and process C completed its final quantum in q4.

To determine which queue each process is in when it begins its final quantum, we need to know the length of time each process has been running and how many times it has already used each queue's quantum. Without that information, we cannot determine which queue a process will be in at a specific point in time. However, we can provide an example of how a process might move between the queues over time.

Let's consider the following three processes:

Process A - CPU burst time = 100s

Process B - CPU burst time = 30s

Process C - CPU burst time = 50s

Assume that all three processes arrive at the scheduler at the same time and are added to q1, the highest priority queue.

When the scheduler begins, it will select the first process in q1, which is process A. Since q1 has a quantum of 5s, process A will run for 5s before it is preempted and placed at the back of q2.

The next process in q1 is B. B will also run for 5s before being preempted and placed at the back of q2.

Next, the scheduler will select process C from q1. C will run for 5s before being preempted and placed at the back of q2.

Now the scheduler has completed one round-robin cycle through q1, and all the processes in q1 have used up their q1 quantum. The scheduler will move on to q2 and select the first process in that queue, which is process A. Since q2 has a quantum of 10s, process A will run for an additional 5s before being preempted and placed at the back of q3.

The next process in q2 is B. B will run for 10s before being preempted and placed at the back of q3.

Next, the scheduler will select process C from q2. C will run for 10s before being preempted and placed at the back of q3.

Now the scheduler has completed one round-robin cycle through q2, and all the processes in q2 have used up their q2 quantum. The scheduler will move on to q3 and select the first process in that queue, which is process A. Since q3 has a quantum of 20s, process A will run for an additional 10s before being preempted and placed at the back of q4.

The next process in q3 is B. B will run for 20s before being preempted and placed at the back of q4.

Next, the scheduler will select process C from q3. C will run for 20s before being preempted and placed at the back of q4.

Now the scheduler has completed one round-robin cycle through q3, and all the processes in q3 have used up their q3 quantum. The scheduler will move on to q4 and select the first process in that queue, which is process A. Since q4 has a quantum of 40s, process A will run for an additional 20s before completing its CPU burst.

The next process in q4 is B. B will run for 30s before completing its CPU burst.

Finally, the scheduler will select process C from q4. C will run for 40s before completing its CPU burst.

However, it's important to note that the exact behavior of the scheduler will depend on the length of time each process has been running and how many times it has already used each queue's.

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Answer:

square root of 5 is the answer

The width of the duck pond is,

⇒ 27 feet

We can see that the given diagram is a rectangle,

And we know that,

Rectangles are four-sided polygons with all internal angles equal to 90 degrees. At each corner or vertex, two sides meet at right angles. The rectangle differs from a square in that its opposite sides are equal in length.

Now, By given diagram we have;

We have to given that;

Use the scale drawing to determine how wide the duck pond is.

And there are 4.5 feet in 1 square,

Therefore,

1 square is equal to 4.5 feet

So, we get;

The width of the duck pond is,

⇒ 6 square

We know that,

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Then to find width of duck pond in feet,

Multiply 6 with 4.5

⇒ 6 × 4.5 feet

⇒ 27 feet

Thus, The width of the duck pond is,

⇒ 27 feet

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Answer:

\( \frac{9x { }^{2 } - 63x}{ 3x} \\ = \frac{3x(3x - 21)}{3x} \\ = 3x - 21 \)

hope it helps:)

Answer:3x-21

Step-by-step explanation:

\(\frac{9x^{2} - 63x }{3x}\) ⇒ \(\frac{3x * (3x - 21) }{3x}\) ⇒ cancel out 3x ⇒ 3x - 21

Answer:

4

Step-by-step explanation:

The \(x\) intercept is where \(y=0\).

\(6x-3(0)=24 \\ \\ 6x=24 \\ \\ x=4\)

Answer:

yes

Step-by-step explanation:

Yes this triangle is right angled and can be justified using the Pythagorean theorem. The theorem states that: \(a^{2} +b^{2} = c^{2}\). Substitute using the given values:

(9^2)+(12^2)=15^2

81 + 144 = 255

255 = 255.

It satisfies the theorem therefore it is a right angle triangle.

Answer:

(a) Hence the maximum error in the calculated area of the disk is 32.67\(cm^{2}\).

(b) Hence the relative error is 1.54%.

Step-by-step explanation:

Here the given are,

The Radius of the circle r = 26cm.

The maximum error in measurement dr = 0.2 cm.

Answer:

(a) \(A =(4245.28\pm32.66) cm^2\)

(b) \(\frac{dA}{A}=\frac{32.66}{4245.28}=0.0077\)

Step-by-step explanation:

radius, r = 26 cm

error = 0.2 cm

(a) The area of the disc is given by

\(A = \pi r^2\\\\dA = 2\pi r dr\\\\dA = 2 \times 3.14\times 26\times 0.2= 32.66\)

Now

A = 3.14 x r x r = 3.14 x 26 x 26 = 4245.28 cm^2

So, the area with error is given by

\(A =(4245.28\pm32.66) cm^2\)

(b) The relative error is

\(\frac{dA}{A}=\frac{32.66}{4245.28}=0.0077\)

Answer:

Step-by-step explanation:

C:27

Plzz give me brainliest

Answer:

Step-by-step explanation:

2(5+x)=8

Answer:

8 months

Step-by-step explanation:

They have $4,000

They are taking out $500 per month (consistent rate of change)

Divide the amount being withdrawn by the total amount of money in the account.

4,000/500=8

Therefore, in 8 months, the bank account will be depleted.

Question:

Solution:

To write an equation for a line, we need a point and direction of the line. The direction is represented by the slope. Now, the slope-intercept form of a line is given by the following equation:

where m is the slope of a line and b is the y-intercept. Now, to find the slope m of this line we apply the following formula:

where (X1,Y1) and (X2,Y2) are points on the line. In this case, we can take the points:

(X1,Y1)= (3,4)

(X2,Y2)=(5,-7)

thus, the slope of the line KL is:

thus, the provisional equation of the line is:

now, to find b, we can take any point on the line and replace it in the above equation; then, solve for b. For example, we can take (x,y)=(3,4), thus:

this is equivalent to:

solving for b, we get:

then

we can conclude that the slope-intercept form of the line KL is:

where x varies on the interval:

The percent of the total calories in each brownie that comes from fat is 26.9%

We know that the total amount of calories in each brownie is 420 calories, so that number represents our 100%, then we can write the relation:

420 cal = 100%

Now, the fat has 113 calories, this is a percentage X that we want to find, so we can write:

113 cal = X

We have the two relations:

113 cal = X

420 cal = 100%

If we take the quotient we get:

(113 cal/420 cal) = X/100%

Solving for X.

(113 cal/420 cal)*100% = X = 26.9%

So, the percent of the total calories in each brownie that comes from fat is 26.9%.

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Answer:  cos²(θ) + sin(θ)sin(e)

Step-by-step explanation:

sin (90° - θ)cos(Ф) - sin(180° + θ) sin(e)

Note the following identities:

sin (90° - θ) = cos(x)

sin (180° + θ) = -sin(x)

Substitute those identities into the expression:

   cos(x)cos(x)  -  -sin(x)sin(e)

=  cos²(x) + sin(x)sin(e)

The expanded form of (x²-3y)⁴ using Pascal's Triangle is x⁸ - 12x⁶y² + 54x⁴y⁴ - 108x²y⁶ + 81y⁸.

Pascal's Triangle is a triangular array of numbers in which the value in each cell is the sum of the two numbers directly above it.

To expand the given expression (x²-3y)⁴ as per Pascal's triangle:

First, write down the fourth row of Pascal's Triangle as:

1 4 6 4 1

The above numbers represent the coefficients of the terms in the expansion of (a+b)⁴, where a is x² and b is -3y. Therefore, it can be written as,

1×(x²)⁴ + 4×(x²)³×(-3y) + 6×(x²)²×(-3y)² + 4×(x²)(-3y)³ + 1(-3y)⁴

Simplify each term,

x⁸ - 12x⁶y² + 54x⁴y⁴ - 108x²y⁶ + 81y⁸

Therefore, the expanded form of (x²-3y)⁴ using Pascal's Triangle is x⁸ - 12x⁶y² + 54x⁴y⁴ - 108x²y⁶ + 81y⁸.

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Step-by-step explanation:

this is first an arithmetic sequence with the first term A1=3(1)+1=4 And the 12th term A12=3(12)+1=37. Then use this formula

S12=12/2 ×(4+37)

=6×41

=246