-8 1/4 + 7
I would to get some help because I am BAD AT MATH T^T

Answer:

Step-by-step explanation:

2x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -1

Respuesta: 50N

Explicación paso a paso:

Dado lo siguiente:.

Tensión (T) = 52,9 N

Masa (m) = 10,5 kg

La normal se obtiene usando la relación:

N = mg - T; donde N = normal, g = aceleración debida a la gravedad (9,8 m / s²)

N = mg - T

N = (10,5 * 9,8) - 52,9

N = 102,9 - 52,9

N = 50 N

Answer:

hey ¿How are you?

Step-by-step explanation:

bye

Answer:

$2

Step-by-step explanation:

Step-by-step explanation:

Given, John had $30

after riding 5 rides, He had $20

( Let's subtract the balance and the balance he had after ride )

$(30 - 20)

$10

Therefore, Each ride costs = $10 ÷ 5

(dividing 10 and 5, we get 2)= $2

Hence, It took $2 for a ride.

Hope it helps. If it helps don't forget to like and mark me.

The sketch of the function y = \(x^{2}\) - x - 3 for -3 <= x <= 3 reveals a parabolic curve that opens upwards. The turning point of the parabola, also known as the vertex, can be identified as (-0.5, -3.25).

To sketch the graph of y = \(x^{2}\) - x - 3, we consider the given domain of -3 <= x <= 3. The function represents a parabola that opens upwards. By calculating the coordinates of the turning point, we can locate the vertex of the parabola.

To find the x-coordinate of the turning point, we use the formula x = -b/2a, where a and b are the coefficients of the quadratic equation. In this case, a = 1 and b = -1. Substituting these values, we have x = -(-1)/2(1) = -0.5.

To find the y-coordinate of the turning point, we substitute the x-coordinate (-0.5) into the equation y = \(x^{2}\) - x - 3. Evaluating this expression, we get y = \(-0.5^{2}\) - (-0.5) - 3 = -3.25.

Therefore, the turning point of the parabola is approximately (-0.5, -3.25).

From the sketch, we can estimate the approximate solutions to the equation \(x^{2}\)- x - 3 = 0 by identifying the x-values where the graph intersects the x-axis. These solutions are approximately x ≈ -2.5 and x ≈ 1.5.

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y = -2x - 9 ----------- 1

y = 3x + 1 -------------- 2

Step 1

Substitute y from equation 1 to equation 2.

y = -2x - 9

3x + 1 = -2x - 9

Step 2

Collect like terms

3x + 2x = - 9 - 1

5x = -10

Step 3

Divide through by 5

x = -10/5

x = -2

Step 4

Substitute x in equation 2 to find y.

y = 3x + 1

y = 3(-2) + 1

y = -6 + 1

y = -5

So the solution is (-2, -5)

Answer:

  11.4

Step-by-step explanation:

You want the distance between C(-5, 5) and D(4, -2).

The distance formula is ...

  d = √((x2 -x1)² +(y2 -y1)²)

For the given points, the distance is computed to be ...

  d = √((4 -(-5))² +(-2 -5)²) = √(81 +49) = √130

  d ≈ 11.4

The length of CD is about 11.4 units.

__

Additional comment

The distance formula is an application of the Pythagorean theorem. It computes the hypotenuse of a right triangle whose legs are the differences in x- and y-coordinates.

Answer:

gsuwiehjdsjkwebskwkahska

The Area of glass needed for the window is approximately 200.97 square inches.

The area of the glass needed for the circular window can be found using the formula for the area of a circle, which is given by:

A = πr^2

where A is the area of the circle and r is the radius.

In this case, the radius of the window is 8 inches, so we can substitute this value into the formula:

A = π(8)^2

Simplifying the expression inside the parentheses, we get:

A = π(64)

Using a calculator or estimating π as 3.14, we can evaluate the expression to find:

A ≈ 200.96

Rounding to the nearest hundredth, we get:

A ≈ 200.97 square inches

Therefore, the area of glass needed for the window is approximately 200.97 square inches.

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Answer:

{1, 0, 16}

Step-by-step explanation:

given..

j(x) = x^2-2x+1

put all given values of domain (1,0 and 5 ) in the equation..

the values you get are range of the function

Answer: 1

Step-by-step explanation

0(2)-2(0)+1=0+0+1= 1

1(1)-(2)(1)+1=1-2+1= 1

(5)(2)-(2)(5)+1=10-10+1= 1

We are required 1.5 half cups to form the required fraction of a cup.

The upper part of a fraction is numerator and the lower part is denominator.

We are told to make 3/4 of a cup from1/2 of cup so let the number of times we need half of a cup be x

So

1/2 * x=3/4

x=3/2 which means 1.5

So we need 1.5 times the half cup to make 3/4 of a cup.

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Answer: True

Step-by-step explanation: This statement is true because when clusters are heterogeneous they are a "scaled-down version" of the population sampled. I hope this helped!

Answer:true

Step-by-step explanation:

The opportunity cost of completing an undergraduate education in four years is $60,000.

To calculate the opportunity cost of completing an undergraduate education in four years, we need to compare the costs of attending college to the potential earnings from the job offer as an Assistant Manager.

The total cost of attending college for four years includes tuition, textbooks, and room and board:

Total cost of college = Tuition + Textbooks + Room and board

                   = $21,000/year * 4 years + $1,000/year * 4 years + $13,000/year * 4 years

                   = $84,000 + $4,000 + $52,000

                   = $140,000

If you decided not to go to college and accepted the job offer as an Assistant Manager, you would earn $50,000 per year for four years:

Potential earnings from job offer = Annual salary * Number of years

                               = $50,000/year * 4 years

                               = $200,000

The opportunity cost of completing an undergraduate education in four years is the potential earnings from the job offer minus the total cost of attending college:

Opportunity cost = Potential earnings - Total cost of college

               = $200,000 - $140,000

               = $60,000

Therefore, the opportunity cost of completing an undergraduate education in four years is $60,000.

Question-

Suppose that at your university, you will pay $21,000 each year for tuition, $1,000 each year for textbooks, and $13,000 per year for room and board. Before you left for college. your boss at Panda offered you a job as an Assistant Manager paying $50,000 per year.

Assume that if you decided not to go to college, your parents would NOT let you live at. home.

What is your opportunity cost in completing an undergraduate education in four years?

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The percentage recovery of paraffin wax for the given flow rate in the final extract is equal to -92%.

Assumptions are,

The process operates under ideal conditions, meaning no losses or inefficiencies occur during the extraction and separation process.

The composition and properties of the wax paper, paraffin wax, kerosene, and other materials remain constant throughout the process.

The sludge underflow from each thickener consists only of insoluble wax paper and the overflow solvent, with no other impurities present.

The solvent is able to fully dissolve and extract the paraffin wax from the wax paper.

The separation stages (agitated vessel and thickener) are efficient in separating the paraffin wax from the solvent and wax paper.

There are no side reactions or chemical changes occurring during the process.

Now let's calculate the percentage recovery of paraffin wax in the final extract.

Flow rate of wax paper = 320 kg/hr

Flow rate of paraffin wax to be leached =200 kg/hr

Flow rate of kerosene = 480 kg/hr

Sludge underflow contains 3.2 kg of overflow per kg of insoluble wax paper

First, let's calculate the flow rate of insoluble wax paper in the sludge underflow,

Flow rate of insoluble wax paper

= Flow rate of wax paper - Flow rate of paraffin wax

= 320 kg/hr - 200 kg/hr

= 120 kg/hr

Next, calculate the flow rate of the overflow solvent in the sludge underflow,

Flow rate of overflow solvent

= Flow rate of insoluble wax paper × Overflow per kg of insoluble wax paper

= 120 kg/hr × 3.2 kg/kg

= 384 kg/hr

Now, let's calculate the flow rate of paraffin wax in the final extract,

Flow rate of paraffin wax in the final extract

= Flow rate of paraffin wax - Flow rate of overflow solvent

= 200 kg/hr - 384 kg/hr

= -184 kg/hr (negative value indicates loss)

Since the flow rate of paraffin wax in the final extract is negative,

it means there is a loss in the process and the recovery of paraffin wax is less than 100%.

To calculate the percentage recovery of paraffin wax in the final extract, consider the initial amount of paraffin wax to be leached,

Percentage recovery

= (Flow rate of paraffin wax in the final extract / Flow rate of paraffin wax to be leached) × 100

= (-184 kg/hr / 200 kg/hr) × 100

= -92%

This negative value indicates a loss in the process,

and the amount of paraffin wax obtained in the final extract is lower than the initial amount to be leached.

Therefore, the percentage recovery of paraffin wax in the final extract is -92%.

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The value of x in the given triangle in radical form is \(\sqrt{14}\)

Pythagorean triples consist of the three positive numbers a, b, and c, where a2+b2 = c2. The symbols for these triples are (a,b,c). Here, a represents the right-angled triangle's hypotenuse, b its base, and c its perpendicular. The tiniest and most well-known triplets are (3,4,5).

Pythagoras theorem states that the square of the longest side of a right angled triangle (called the hypotenuse) is equal to the sum of the squares of the other two sides.

From Pythagorean theorem.

a2+b2 = x2.

6+8=x2

x=\(\sqrt{14\\\)

Hence the solution of the above equation is \(\sqrt{14}\)

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Answer:

G

Step-by-step explanation:

The expression that expresses her purchasing restrictions is:

13c + 10d = 150.

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

Given, Cheyenne is deciding between the ways she has to buy music. Albums on CD cost $13 but downloads of an album only cost $10. If she can spend up to $150 on music purchases.

Let "c" be the CDs she bought

and "d" be the albums she downloads

Price of total CD = 13c

price of total download = 10d

Thus, an equation that satisfies the situation:

13c + 10d = 150

therefore, Her purchasing limitations are expressed in the following way:

13c + 10d = 150.

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Answer:

A) 19/15

Step-by-step explanation:

2/3 + 3/5 =

10/15 + 9/15 =

19/15

Hope this helps! Pls give brainliest!

Answer: 19/15

Step-by-step explanation:

2/3 + 3/5

(2/3 • 5/5) + (3/5 •3/3)

10/15 + 9/15

19/15

Answer:

HGD: 117

FDG: 180

Step-by-step explanation:

Answer:

<HDG = 117 degrees

<FDG = 63 degrees

Step-by-step explanation:

Its a straight line

These are supplementary angles

If its a striaght line its 180 degrees.

We already know theres a 63 degrees so we jsut gotta subtract

180-63=117

So 117 degrees for HDG

The catcher has to throw a ball to get out a runner trying to steal second base about 127.3 ft away.

Given is a figure of baseball field, we are asked to find the distance between home plate and second base,

Since, the field is a square so all the sides will be equal,

So, using the Pythagorean theorem,

The distance between home plate and second base = √90²+90²

= √8100+8100

= √16200

= 127.3

Hence the catcher has to throw a ball to get out a runner trying to steal second base about 127.3 ft away.

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Answer:

The value of y in the equation is 10

Step-by-step explanation:

3y = 22 + 8

3y = 30

y = 30/3

Therefore; Y = 10

Answer:

Skewed

Step-by-step explanation:

Answer:c

Step-by-step explanation:

Answer:

1) 4

2) 16

Step-by-step explanation:

Answer:

Use desmos for accurate answers!!

Step-by-step explanation:

Answer:nnn

Step-by-step explanation:

jjj

Answer:

i.dk much but try Hypotenuse Leg Theorem very sorry if i wrong so sorry

Step-by-step explanation:

i.dk how i would explain

Answer:

SAS

Step-by-step explanation:

i just got it right

All possible values of ∠U   to the nearest degree are 17° and 163°.

Given that u = 330 inches, t = 990 inches and ∠T = 68°.

We need to find all possible values of ∠U. Let's solve this using the law of sines.

First, we will write the law of sines. Law of Sines:

a/sin A = b/sin B = c/sin C

Here, we will use the formula to find the unknown angle U.

Then we will solve the resulting equation to get all possible values of ∠U.

Therefore, sin U/sin 68° = 330/990

Now we will cross multiply to solve for sin U

sin U = (sin 68° * 330) / 990

sin U = 0.2929

We can now find the value of U using the inverse sine function.

Hence, U = sin⁻¹(0.2929)

U = 17.29° or 162.71°

We have two solutions because there are two angles that have a sine of 0.2929.

Therefore, the possible values of ∠U are 17° and 163°.

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(a) The 95% confidence interval for the population mean of the treatment group is [7.02, 10.98].

(b) To calculate Cohen's d, we need the standard deviation of the sample. Using the given sample scores, the standard deviation is approximately 2.68. Cohen's d is then (9 - 8.31) / 2.68 = 0.26, indicating a small effect size.

(c) To perform a hypothesis test, we compare the sample mean of 8.31 (obtained from the given sample scores) with the population mean of 9. Using a t-test, assuming a significance level of 0.05 and a two-tailed test, we calculate the t-value as (8.31 - 9) / (2.68 / sqrt(6)) = -0.57. The critical t-value for a 95% confidence level with degrees of freedom of 5 (n-1) is 2.571. Since |-0.57| < 2.571, we fail to reject the null hypothesis and conclude that there is not enough evidence to suggest a significant difference between the population mean of the treatment group and the mean of the general population.

(d) Bayesian factor (BF) represents the strength of evidence for one hypothesis over another. Without specific information about the alternative hypothesis, we cannot compute a Bayesian factor in this case.

(a) To compute a 95% confidence interval for the population mean of the treatment group, we can use the formula:

Confidence Interval = sample mean ± (t-value * standard error)

From the given sample scores, the sample mean is (10 + 7 + 9 + 6 + 10 + 12) / 6 = 8.31. The t-value for a 95% confidence level with degrees of freedom 5 (n-1) is 2.571. The standard error can be calculated as the sample standard deviation divided by the square root of the sample size.

Using the sample scores, the sample standard deviation is approximately 2.68. The standard error is then 2.68 / sqrt(6) ≈ 1.09.

Plugging in the values, the 95% confidence interval is 8.31 ± (2.571 * 1.09), which gives us [7.02, 10.98].

(b) Cohen's d is a measure of effect size, which indicates the standardized difference between the sample mean and the population mean. It is calculated by subtracting the population mean from the sample mean and dividing it by the standard deviation of the sample.

In this case, the population mean is given as 9. From the sample scores, we can calculate the sample mean and standard deviation. The sample mean is 8.31, and the standard deviation is approximately 2.68.

Using the formula, Cohen's d = (sample mean - population mean) / sample standard deviation, we get (8.31 - 9) / 2.68 ≈ 0.26. This suggests a small effect size.

(c) To perform a hypothesis test, we can compare the sample mean of the treatment group (8.31) with the mean of the general population (9) using a t-test. The null hypothesis assumes that the population mean of the treatment group is equal to the mean of the general population.

Using the sample scores, the standard deviation is approximately 2.68, and the sample size is 6. The t-value is calculated as (sample mean - population mean) / (sample standard deviation / sqrt(sample size)).

Plugging in the values, the t-value is (8.31 - 9) / (2.68 / sqrt(6)) ≈ -0.57. The critical t-value for a 95% confidence level with 5 degrees of freedom (n-1) is 2.571.

Since |-0.57| < 2.571, we fail to reject the null hypothesis. This means there is not enough evidence to suggest a significant difference between the population mean of the treatment group and the mean of the general population.

(d) Bayesian factor (BF) represents the strength of evidence for one hypothesis over another based on prior beliefs and data. However, to compute a Bayesian factor, we need specific information about the alternative hypothesis, which is not provided in the given question. Therefore, we cannot calculate a Bayesian factor in this case.

(a) The 95% confidence interval for the population mean of the treatment group is [7.02, 10.98].

(b) Cohen's d suggests a small effect size, with a value of approximately 0.26.

(c) The hypothesis test does not provide enough evidence to suggest a significant difference between the population mean of the treatment group and the mean of the general population.

(d) A Bayesian factor cannot be computed without information about the alternative hypothesis.

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Answer:

a =5that is the answer ok