Half the difference between two numbers is 8. The average of the numbers is 12. Find the
numbers.

Answer:

B

Step-by-step explanation:

since it is negative its below

hope this helps :3

if it did pls mark brainliest

Answer:

B. 282 feet below sea level

Step-by-step explanation:

The reasoning presented lacks explicit explanations and logical connections between the steps, making it difficult to fully understand the intended proof strategy.

The given proof aims to show that the Separation Axioms can be derived from the Replacement Schema using a particular construction involving a formula p(x, y). Let's analyze the proof step by step:

Define the formula p(x, y) as x = yo(x).

This formula states that for each x, y pair, x is equal to the unique object y such that y is obtained by applying the operation o to x.

Define the set F as {(x, x) (x)}.

This set F contains pairs (x, x) where x is the unique object obtained by applying the operation (x) to x.

Claim: F(X) = {y (x = X)p(x, y)} = {y: (x = X)x = y^o(x)} = {x: (3x € X)o(x)} = {x X: (x)}.

This claim asserts that F(X) is equivalent to {y (x = X)p(x, y)}, which is further equivalent to {y: (x = X)x = y^o(x)}, and so on.

The proof states that since (x, y) satisfies the functional formula VaVyVz(p(x, y)^(x, z) y = z), it follows that (x, y) is a functional formula.This step emphasizes that the formula p(x, y) satisfies certain properties that make it a functional formula, which is relevant for the subsequent deductions.

Finally, the proof concludes that the Separation Axioms follow from the Replacement Schema, based on the previous steps.

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Huda's error in evaluating (3) squared incorrectly led to the incorrect final result.

The correct answer should be -20, not 34.

Huda's error was that she evaluated (3) squared incorrectly.

Instead of calculating 3 squared as 9, she mistakenly considered it as 3. This error led to incorrect subsequent calculations and the final result of 34, which is not the correct answer.

To evaluate the expression correctly, let's go through the steps:

Negative 3 (8 minus 5) squared minus (negative 7) \(= -3(3)^2 - (-7)\)

First, we simplify the expression within the parentheses:

\(-3(3)^2 - (-7) = -3(9) - (-7)\)

Next, we evaluate the exponent:

-3(9) - (-7) = -3(9) + 7

Now, we perform the multiplication and addition/subtraction:

-3(9) + 7 = -27 + 7 = -20

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Answer: 66

Step-by-step explanation: 30 x 2 = 60... 30 / 5 = 6... 60 + 6 = 66 :D

i'm in seventh too hehe

Answer

1

Step-by-step explanation:

anything times one equals the number multiplied by one

Hope this helps :)

Answer:

2x1=2, -2x1= -2, 2x0.5=1, -2x (-0.5)=1

HOPEFULLY THIS HELPS :3

Answer:

He wrote the word "ease"

If Angela spent $95 to buy 7 cakes for her office party, and she then cut each cake into quarters and each quarter into further 3 pieces, of which Kevin ate 5 pieces, then Angela had spent $5.65 on just the share of the cake that Kevin had.

As per the question statement, Angela spends $95 to buy 7 cakes for her office party, and she then cuts each cake into quarters and each quarter into further 3 pieces, of which Kevin ate 5 pieces.

We are required to calculate the amount Angela had spent on just the share of the cake that Kevin had.

To solve this question, first let us calculate the total number of pieces, did Angela cut all the 7 pieces of the cake into.

Considering one piece, that it was first cut into a quarter and then each quarter into further 3 pieces, one single piece out of original 7 pieces was cut into a total of [(4 * 3) = 12] pieces.

Therefore, all the 7 original pieces were altogether cut into a total of

[(7 * 12) = 84] pieces.

Now, since Angela spent $95 to buy the original 7 pieces,

Or, Angela actually spent $95 to buy 84 pieces of cake,

Then, 1 piece of the 84 costs $(95/84) = $1.13.

Now, since Kevin ate 5 such pieces of the 84, those 5 pieces cost

$(1.13 * 5) = $5.65.

Therefore, Angela had spent $5.65 on just the share of the cake that Kevin had.

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To find the amount of wet food Luck mixed with the dry food, we can use the fact that he put 5/4 cups into each of the 4 bowls. Therefore, he used a total of 5/4 x 4 = 5 cups of wet food.

Thus, Luck mixed 3 cups of dry food and 5 cups of wet food to prepare the dog's meal.

Answer:

56 minutes

Step-by-step explanation:

We can use proportions to solve.

6 miles            8 miles

------------     = ------------------

42 minutes        x minutes

Using cross products.

6x = 42 *8

Divide each side by 6

x = 42/6 * 8

x = 7*8

x = 56

Answer:

We can simplify the expression as follows:

4^3 * 4^4 / 4^9

First, we can simplify the terms in the numerator by adding the exponents of 4:

4^3 * 4^4 = 4^(3+4) = 4^7

Now, we can substitute this value in the expression:

4^7 / 4^9

To divide powers with the same base, we can subtract their exponents:

4^(7-9) = 4^(-2)

Therefore, the simplified expression is:

4^3 * 4^4 / 4^9 = 4^(-2)

So, the final answer is 1/16 or 0.0625.

We can say that the domain of f(x) is (-∞, ∞), which means that any real number can be plugged into the function and it will produce a valid output.

What is function?

In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range.

The function f(x) = -x³ + 6x² -10x + 4 is a polynomial function, which means that it is defined for all real values of x. Unlike some functions (such as square roots or logarithms) which have restrictions on their input values, a polynomial function can take any real number as an input.

To express the domain of the function in interval notation, we use the notation (-∞, ∞), which represents all real numbers. The symbol ∞ stands for infinity, and the open interval notation with the parentheses indicates that there are no specific endpoints for the domain; it extends indefinitely in both directions along the real number line.

Therefore, we can say that the domain of f(x) is (-∞, ∞), which means that any real number can be plugged into the function and it will produce a valid output.

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You can add 4 more yellow marbles to make the ratio of yellow to blue marbles 2 to 1.

A ratio of 2 to 1 means that one of the objects have twice the amount of the other. Since blue originally had 6 marbles, simply multiply that by 2 and you should get how many yellow marbles you need in total and since you already have 8 yellow marbles, all you need is to add four.

The final ration will be

yellow : blue

12 : 6

2 : 1

Answer:

THE ANSWER IS 81/16 OR C

Answer: the best coupon for this case is WELCOME25, and the cost will be $30.

Step-by-step explanation:

We know that:

Price for pans = $22

Price for pots = $9.

If the customer buys two pots and one pan, he would pay::

C = 1*$22 + 2*$9 = $40.

If the customer uses the coupon 2POTSFOR1

Then he will pay only one of the pots, and the total cost will be:

C = 1*$22 + 1*9 = $31.

If the customer uses the WELCOME25 coupon, then the cost will be a 75% of the original cost.

if 100% = $40

then:

 75% = C

Where

We can take the quotient of these equations and get:

 (C/$40) = (75%/100%)

C = (75%/100%)*$40

C = 0.75*$40 = $30

Then the best coupon for this case is WELCOME25, and the cost will be $30.

Number of People who knows the Code are 6401

What is Linear Equation in Two Variable?

A linear equation in two variables is one that is stated in the form ax + by + c = 0, where a, b, and c are real integers and the coefficients of x and y, i.e. a and b, are not equal to zero.

Solution:

Let, Number of People who kows the Code be x

Number of Peoplee who do not know the Code be y

According to the Question:

x + y = 7338 ----------(i)

2x + 5y = 17487 ----------(ii)

Multiplying Equation (i) by 2

2x + 2y = 14676 ---------(iii)

Substracting Equation (iii) from Equation (ii)

3y = 2811

y = 937

This means x = 6401

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Answer:

256,781

Step-by-step explanation:

Hence, the missing number in the sequence is \(1,4, 16, 64, 256,1024\).

What is the sequence?

A sequence is a list of objects, typically numbers, in which order matters, repetition is allowed, and the same elements can appear multiple times at different positions in the sequence.

Here given sequence is

\(1,4, 16, 64, -,-,\)

So,

\(1\\1(4)=4\\16(4)=64\\64(4)=256\\256(4)=1024\)

Hence, the missing number in the sequence is \(1,4, 16, 64, 256,1024\).

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Answer:

-1

Step-by-step explanation:

on edge

Answer:

True

Step-by-step explanation:

Because -5 x -5 = -25

Answer:

312, 313, and 314

Step-by-step explanation:

Since the three numbers are consecutive, each one is one larger than the last. Therefore, we can express them as x, (x+1), and (x+2). Therefore:

\(x+(x+1)+(x+2)=939 \\\\3x+3=939 \\\\3x=936\\\\x=312\\\\x+1=313\\\\x+2=314\)

Hope this helps!

Myiah rides her bike from home to the park so there is a distance from home, then she and her friends stay some time at the park, then the distance vs time is a horizontal line because they don't move while the time is moving. Finally, she rides her bike home at a slower rate, so she takes more time to get home.

In conclusion, the graph that represents this situation is the third.

Answer:

89.3

Step-by-step explanation:

Answer:

89.3

Step-by-step explanation: You would move the decimal two places to the right.

Answer:

Step-by-step explanation:

x+9

Let x, be 4

4+9=13

given condition,

x+9<4x

4+9<4(4)

13<16

The answer is:

Work/explanation:

Our inequality is:

\(\sf{x+9 < 4x}\)

Flip it

\(\sf{4x > x+9}\)

Solve

\(\sf{4x-x > 9}\)

Combine like terms

\(\sf{3x > 9}\)

Divide each side by 3

\(\sf{x > 3}\)

Answer:

y=12.73 x=9

Step-by-step explanation:

Therefore, the answers for the given composite functions are:

f(g(7)) = 814

g(f(4)) = 151

f(g(8)) = 898

f(f(2)) = -4

A function from a set X to a set Y allocates precisely one element of Y to each element of X. The set X is known as the function's domain, while the set Y is known as the function's codomain. Originally, functions were the idealization of how a variable quantity depended on another quantity.

Here,

To evaluate function compositions, we substitute the inner function into the outer function and simplify.

(a) To evaluate f(g(7)), we first find g(7):

g(7) = 7(7)^2 + 9(7) + 3 = 343 + 63 + 3 = 409

Now we can substitute g(7) into f(x):

f(g(7)) = f(409) = 2(409) - 4 = 814

(b) To evaluate g(f(4)), we first find f(4):

f(4) = 2(4) - 4 = 4

Now we can substitute f(4) into g(x):

g(f(4)) = g(4) = 7(4)^2 + 9(4) + 3 = 112 + 36 + 3 = 151

(c) To evaluate f(g(8)), we first find g(8):

g(8) = 7(8)^2 + 9(8) + 3 = 7(64) + 72 + 3 = 451

Now we can substitute g(8) into f(x):

f(g(8)) = f(451) = 2(451) - 4 = 898

(d) To evaluate f(f(2)), we first find f(2):

f(2) = 2(2) - 4 = 0

Now we can substitute f(2) into f(x):

f(f(2)) = f(0) = 2(0) - 4 = -4

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Variance and standard deviation are two common measures of spread in statistics. The standard deviation is √30.25 = 5.5.

OB. s² = The sample variance is a measure of the spread of a set of data. To calculate the sample variance, the sum of the squares of the differences between each data point and the mean is divided by the number of data points minus one. In this case, the mean of the data set is (22+15+4+7+9)/5 = 11.

The differences between each data point and the mean are 11-22=-11, 11-15=-4, 11-4=7, 11-7=4, and 11-9=2. The sum of the squares of these differences is (-11)² + (-4)² + 7² + 4² + 2² = 121.

Dividing this by the number of data points minus one, which is 5-1=4, gives us a sample variance of 121/4 = 30.25.

The standard deviation is the square root of the sample variance, so in this case, the standard deviation is √30.25 = 5.5.

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By analyzing the graph and evaluating the objective function at each vertex of the feasible region, we can find the optimal solution, which is the vertex that maximizes the objective function z = 3x + y.

To find the optimal solution of the given problem using the graphical method, we need to plot the feasible region determined by the given constraints and then identify the point within that region that maximizes the objective function.

Let's start by graphing the constraints:

1. Plot the line 2x - y = 5. To do this, find two points on the line by setting x = 0 and solving for y, and setting y = 0 and solving for x. Connect the two points to draw the line.

2. Plot the line -x + 3y = 6 using a similar process.

3. The x-axis and y-axis represent the constraints x ≥ 0 and y ≥ 0, respectively.

Next, identify the feasible region, which is the region where all the constraints are satisfied. This region will be the intersection of the shaded regions determined by each constraint.

Finally, we need to identify the point within the feasible region that maximizes the objective function z = 3x + y. The optimal solution will be the vertex of the feasible region that gives the highest value for the objective function. This can be determined by evaluating the objective function at each vertex and comparing the values.

Note: Without a specific graph or additional information, it is not possible to provide the precise coordinates of the optimal solution in this case.

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