Solve for a
6a-15=72

Answer:

It's 8¹⁰

Step-by-step explanation:

\(8^6 * 8^4 = 8^{(6 + 4)} = 8^{10}\)

Sample evidence can support a null hypothesis, but it cannot prove it to be true.To test this hypothesis, researchers collect and analyze a sample of data.

Sample evidence can provide support for a null hypothesis, but it cannot prove it to be true. In statistical hypothesis testing, the null hypothesis assumes that there is no significant relationship or difference between variables. To test this hypothesis, researchers collect and analyze a sample of data.

If the sample evidence does not provide strong enough support to reject the null hypothesis, it means that the data does not provide enough evidence to conclude that there is a significant relationship or difference. However, this does not prove that the null hypothesis is true, as there is always a possibility of Type II error (false negative).

For example, let's say we want to test if a new drug is effective in reducing pain. The null hypothesis would be that the drug has no effect. After conducting a study and analyzing the sample data, if we fail to reject the null hypothesis, it means we don't have enough evidence to conclude that the drug is effective. However, it doesn't prove that the drug is truly ineffective.In summary, sample evidence can support a null hypothesis, but it cannot prove it to be true.

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The correct answer is (5,-7) Hope that helps!

Answer:

it would be (-5,6)

Step-by-step explanation:

since it is just reflected and not moving anywhere it would just be the same coordinates but flipped values. if its positive then when its reflected it would be negative.

Answer:

-3, 1

Step-by-step explanation:

There are actually 2 x-intercepts of the parabola. You can find them simply by looking along the x-axis and seeing where the lines of the parabola touch the axis, so -3 and 1.

Hope this helps :)

Answer:

1 and  -3

Step-by-step explanation:

At x-intercept y = 0

So, parabola intersect x-axis at two places (1 , 0) and (-3 , 0)

X-intercepts are 1 and -3

Answer:

x < -12

Step-by-step explanation:

Given the inequality

-2(x + 3) < 6 - x

Expand

-2x - 6 < 6 - x

Collect the like terms;

-2x + x < 6 + 6

-x < 12

Multiply through by -1

-1(-x) < -1(12)

x < -12

Answer:

D

Step-by-step explanation:

A = 4 π r^2

A/(4π) = r^2

r = sqrt(A/(4π))

Answer:

D

Step-by-step explanation:

Given

A = 4πr² ( divide both sides by 4π )

\(\frac{A}{4\pi }\) = r² ( take the square root of both sides )

\(\sqrt{\frac{A}{4\pi } }\) = r → D

If Jada practices the violin for 35 minutes every day on Tuesday, she practices for 35 minutes * 1 day = 35 minutes in a week on Tuesday.

To find out how much Jada practices in a week in total, we need to multiply the time she practices on Tuesday by the number of days in a week, which is 7. Therefore, Jada practices the violin for 35 minutes * 7 days = 245 minutes a week.

In general, the amount of time that a musician should practice depends on their skill level and goals. However, for beginner to intermediate-level players, a good starting point is to practice for at least 30 minutes to an hour each day. For more advanced players, it's common to practice for several hours a day.

Regardless of skill level, the key to improving on an instrument is consistent practice over time. By setting aside a specific time each day to practice, musicians can gradually build up their skills and achieve their goals.

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Naoya has a 70% probability of succeeding at any given free-throw. In a sample of 15 free-throws, he can expect to succeed in 10.5 free-throws on average.

The probability of Naoya succeeding at any given free-throw is 0.7, or 70%. To find the expected number of free-throws he can succeed in a sample of 15, we use the formula for the expected value of a binomial distribution.

The number of trials is 15, the probability of success is 0.7, and we want to find the expected number of successes. The formula for the expected value of a binomial distribution is E(X) = n*p, where E(X) is the expected number of successes, n is the number of trials, and p is the probability of success.

E(X) = 15*0.7 = 10.5.

Therefore, Naoya can expect to succeed in 10.5 free-throws on average in a sample of 15 free-throws.

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There is a 70% probability of succeeding at any given free-throw. In a sample of 15 free-throws, he can expect to succeed in 10.5 free-throws on average.

The probability of Naoya succeeding at any given free-throw is 0.7, or 70%. To find the expected number of free-throws he can succeed in a sample of 15, we use the formula for the expected value of a binomial distribution.

The number of trials is 15, the probability of success is 0.7, and we want to find the expected number of successes. The formula for the expected value of a binomial distribution is E(X) = n*p, where E(X) is the expected number of successes, n is the number of trials, and p is the probability of success.

E(X) = 15*0.7 = 10.5.

Therefore, Naoya can expect to succeed in 10.5 free-throws on average in a sample of 15 free-throws.

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Answer:

the second

Step-by-step explanation:

refers to well-founded standards of right and wrong that prescribe what humans should do, usually in terms of rights, obligations, benefits to society, justice

The solution of the separable differential equation 5ydx = 3xdy is ln |y| = ln |x| + C, where C is the constant of integration.

To solve the given separable differential equation, we start by separating the variables by writing it as 5ydx - 3xdy = 0. Next, we integrate both sides with respect to their respective variables.

∫5ydx = ∫3xdy

Integrating the left side with respect to x gives 5xy + g(y), where g(y) is the constant of integration with respect to x. Similarly, integrating the right side with respect to y gives 3xy + f(x), where f(x) is the constant of integration with respect to y.

Therefore, we have 5xy + g(y) = 3xy + f(x).

To simplify the equation, we can rearrange it as 5xy - 3xy = f(x) - g(y), which gives us 2xy = f(x) - g(y).

Now, we can equate the constant term on both sides, f(x) - g(y) = C, where C is the constant of integration.

Simplifying further, we have f(x) = g(y) + C.

Since f(x) and g(y) are arbitrary functions, we can express them as ln |x| and ln |y| respectively, leading to ln |x| = ln |y| + C.

Therefore, the solution to the separable differential equation 5ydx = 3xdy is ln |y| = ln |x| + C, where C is the constant of integration.

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To calculate the least squares estimates of the slope and intercept of the regression line. The slope can be calculated using the formula

the sample means of the age and weight variables, respectively. Plugging in the provided values, we get:

b = (1996904.15 - (11211.00 * 44520.80 / 60)) / (543503.00 - 11211.00^2 / 60) ≈ 2.88

Next, we can use the equation for the slope and the sample means to solve for the intercept:

Plugging in the values, we get:

a = 44520.80 - 2.88 * (11211.00 / 60) ≈ 398.08

So the equation for the fitted regression line is:

y = 2.88x + 398.08

To graph the line, we can plot the sample data (age vs weight) and draw the line that best fits the data.

To predict the weight for a 25-year-old man, we can simply plug in x = 25 into the equation for the fitted line:

y = 2.88 * 25 + 398.08 ≈ 467.08 lbs

To find the residual for a 25-year-old man who weighs 170 lbs, we simply subtract the predicted weight from the observed weight:

e = 170 - 467.08 ≈ -297.08 lbs

Since the residual is negative, the prediction for the 25-year-old man was an underestimate.

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Answer: 157.5

Step-by-step explanation:

I would add 45 % again and you'd get 90 % or

150.00 the find 10 % of 75 which is 10*75/100 or 7.5

then add 150.00+ 7.5 = 157.5

Answer:

YES!!

Step-by-step explanation:

All rational numbers can be expressed as a fraction whose denominator is non-zero. Here, the given number, 3 can be expressed in fraction form as 3⁄1. Hence, it is a rational number.

Using simple multiplication we know that the customer's final pay before sales tax would be $ 18.965.

One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication.

Multiply in mathematics refers to the continual addition of sets of identical sizes.

When you take a single number and multiply it by several, you are multiplying.

We multiplied the number five by four times.

Due to this, multiplication is occasionally referred to as "times."

So, using the given chart calculate as follows:

(1/4 * 5.99) + ( 1 1/2 * 4.99) + (1 * 6.99) + (3/4 * 3.99) = Pay before sales tax

(1/4 * 5.99) + (3/2 * 4.99) + (1 * 6.99) + (3/4 * 3.99) = Pay before sales tax

1.4975 + 7.485 + 6.99 + 2.9925 = Pay before sales tax

$ 18.965 = Pay before sales tax

Therefore, using simple multiplication we know that the customer's final pay before sales tax would be $ 18.965.

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Answer:

the longest segment is between 14 and 9

Step-by-step explanation:

this is the best answer in my eyes

The length of the diagonal of the rectangular prism will be 19.95 centimeters.

A rectangle's longitudinal divides it into two equivalent right triangles. A rectangle's diagonal elements are all the same length. A rectangle is a rectangle whose diagonal elements bisect one another, cross at right angles, and are identical.

The length of the diagonal of the rectangular prism is given as,

D² = L² + W² + H²

The dimensions of the rectangular prism will be 14 cm long, 11 cm wide, and 9 cm tall.

The diagonal length is calculated as,

D² = 14² + 11² + 9²

D² = 196 + 121 + 81

D² = 398

D = 19.95 cm

The length of the diagonal of the rectangular prism will be 19.95 centimeters.

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According to the question we have the probability of rolling a 2 and spinning an A is 1/48 in simplest form.

To find the probability of rolling a 2 and spinning an A, we need to multiply the probability of rolling a 2 with the probability of spinning an A.

The probability of rolling a 2 on a fair die is 1/6. The probability of spinning an A on a spinner with 8 equally likely outcomes is 1/8.

Therefore, the probability of rolling a 2 and spinning an A is (1/6) x (1/8) = 1/48.

In simplest form, the probability of rolling a 2 and spinning an A is 1/48.
The probability of rolling a 2 on a die and spinning an A on a spinner with 8 letters can be found by multiplying the probability of each individual event.

First, find the probability of rolling a 2 on a standard 6-sided die:
P(rolling a 2) = 1/6, since there is only one 2 on the die and six total sides.

Next, find the probability of spinning an A on a spinner with 8 equally sized sections labeled A through H:
P(spinning an A) = 1/8, since there is only one A on the spinner and eight total sections.

Now, multiply the probabilities of the two independent events:
P(rolling a 2, spinning an A) = P(rolling a 2) * P(spinning an A) = (1/6) * (1/8) = 1/48.

So, the probability of rolling a 2 and spinning an A is 1/48 in simplest form.

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Answer:

-72

Step-by-step explanation: 9x-1= -9 and 8x+8= 8 and then parenthesis around both equations, which mean multiply, so -9 x 8= -72 .

If the charge on a single-use bag is 25 fils, then the notations that shows the amount of dirhams that the store will get after one year can be expressed as 0.25x.

Given that the charge on single-use bag is 25 fils.

We are required to give the express the amount of dirhams that the store will get after one year.

Equation is the relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It may be a linear equation,quadratic equation,cubic equation and many more depending on the powers of variables that are present in the equation.

let the number that single use bag used in 1 year be x.

We know that there are 100 files in a dirham, so 25 fils will be 0.25 dirham.

Equation that shows the number of dirham that the store will get after one year=0.25x.

Hence if the charge on a single-use bag is 25 fils, then the notation that shows the amount of dirham that store will get after one year can be expressed as 0.25x.

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Step-by-step explanation:

mad = 98 + 92 + 96 + 97 + 97 / 5

= 480/5

= 96

mad = (98 -96) + (92 - 96) + (96 -96) + (97- 96) + (97 -96) / 5

= 2 + (-4) + 0 + 1 + 1 / 5

=0/5

mad = 0

brainliest is appreciated

Answer:

1.6

Step-by-step explanation:

To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.

98+92+96+97+97=480

480/5 values=96 is the mean or average of the set of numbers

so we just find the absolute value of the data value minus the mean.

For the first one it would be |98-96|=2

then continue on and get a set of values

{2,4,0,1,1}

now find the average of that to get the mean absolute deviation

2+4+0+1+1=8

8/5 values

1.6

Hope that helps :)

the image has the answers do you need me to explain how i did it?

Equation that makes it easier to find the number of vertices in an Octahedron is V + F = 14 with 8 faces there are 6 vertices.

Given:

Octahedron has 8 faces

Let F be the faces of octahedron

Let V be the vertices of octahedron

we know that:

V + F = 14

Given F = 8 substitute

V + 8 = 14

V = 14 - 8

V = 6

Therefore Equation that makes it easier to find the number of vertices in an Octahedron is V + F = 14 with 8 faces there are 6 vertices.

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Answer:

about 2 or 3

Step-by-step explanation:

heres what u do go onlie and put the books up for sale.

Answer:

The book of amber will reach the pool 6.78 seconds before the other

Step-by-step explanation:

common sense

According to the price, it will take 3.75 hours for the prices of both stocks to be the same, assuming they continue to increase and decrease at the same rates.

To find out when the prices of both stocks will be the same, we need to set up an equation where the prices of both stocks are equal. Let's call the number of hours it takes for the prices to be equal "t".

For stock A, the price after "t" hours can be expressed as:

Price of stock A = $12.73 + ($0.06 x t)

For stock B, the price after "t" hours can be expressed as:

Price of stock B = $13.48 - ($0.14 x t)

To find the time when the prices of both stocks are equal, we can set the two equations equal to each other and solve for "t".

$12.73 + ($0.06 x t) = $13.48 - ($0.14 x t)

Simplifying this equation, we get:

$0.20 x t = $0.75

Dividing both sides by $0.20, we get:

t = 3.75 hour

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Answer:

5 pounds.

Step-by-step explanation:

22 - 17 = 5

1.)  Probabilities range from 0 to 1, denoting impossibility and certainty, respectively.

2.) The sum of probabilities of all possible outcomes is equal to 1.

1.) Individual probabilities will always have values between 0 and 1. This property is known as the "probability bound." Probability is a measure of uncertainty or likelihood, and it is represented as a value between 0 and 1, inclusive.

A probability of 0 indicates impossibility or no chance of an event occurring, while a probability of 1 represents certainty or a guaranteed outcome.

Any probability value between 0 and 1 signifies varying degrees of likelihood, with values closer to 0 indicating lower chances and values closer to 1 indicating higher chances. In simple terms, probabilities cannot be negative or greater than 1.

2.) The sum of the probabilities of all individual outcomes must equal 1. This principle is known as the "probability mass" or the "law of total probability." When considering a set of mutually exclusive and exhaustive events, the sum of their individual probabilities must add up to 1.

Mutually exclusive events are events that cannot occur simultaneously, while exhaustive events are events that cover all possible outcomes. This property ensures that the total probability accounts for all possible outcomes and leaves no room for uncertainty or unaccounted possibilities.

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A. True. The sequence of four words, triangle, glove, clock, bicycle, corresponds to the sequence of numbers 3, 5, 12, 2

A sequence of numbers consists of numbers that are connected by a rule or arranged in a recognizable pattern.

The sequence of the words are;

Triangle, glove, clock, bicycle

The sequence of the numbers are 3, 5, 12, 2

The sequence of the words can be shown to correspond to the sequence of numbers, based on the similarities between the words and the numbers as follows;

The number of sides in a triangle are 3, therefore, the first word, triangle, corresponds with the first number, 3

The number of fingers that fit in a glove are five fingers, therefore, the second word, glove, corresponds with the second number, 5

The number of hours in a clock are twelve, therefore, the third word, clock, corresponds with the third number, 12

The number of wheels in a bicycle are two, therefore, the fourth word corresponds with the fourth number, 2

The correct option is A. True

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The distance from point C to the line through points A and B can be found using the formula for the distance between a point and a line in 3D. Let P be the point on the line closest to C.

The distance d between C and the line AB is given by d = ||CP||, where CP is the vector from C to P. The vector CP can be obtained by projecting the vector AC onto the direction vector of the line AB. The distance d is then the magnitude of CP.

To find the point on the line through A and B closest to C, we can use the concept of orthogonal projection. The point P on the line AB closest to C is the point where the line AB intersects the line perpendicular to AB and passing through C. This point can be found by determining the parameter t that gives the coordinates of P.

The equation of the plane containing the points A, B, and C can be found using the cross product of the vectors formed by the points. Let AB and AC be the vectors formed by subtracting the coordinates of point A from points B and C, respectively. The equation of the plane can then be written as r = A + t(AB) + s(AC), where A is a known point on the plane and t and s are parameters. This represents the parametric-vector form of the plane equation.

In conclusion, to find the distance from point C to the line through points A and B, we use the formula for the distance between a point and a line. To find the point on the line closest to C, we use orthogonal projection. Finally, to find the equation of the plane containing A, B, and C, we use the cross product of the vectors formed by the points.

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It will take a total of 80/9 minutes to complete this race

From the question, we have the following parameters that can be used in our computation:

Distance = 1/20 km

Time = 1 1/3 minutes

So, we have

Speed = (1/20)/(1 1/3)

So, we have

Speed = 3/80 km per minute

For a distance of 3 km, we have

Time = 3/(3/80)

Evaluate

Time = 80/9

Hence, the time taken is 80/9 minutes

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