PLease HELP!! Brainliest answer

Answer:

2f+2y+pd+z(d+2)

Step-by-step explanation:

If Brandon buys 2 gifts and the cost of each gift is f, then the cost of the 2 gifts is 2f.... 1

Also if Daniel buys d gifts, the cost of each gift is p, then the cost of d gifts will be "pd ".... 2

If Georgia buys 2 more gifts than Daniel, then the amount of gift bought by daniel will be d+2. If the cost of each gift is z, the cost of (d+2) gifts will be z(d+2) .... 3

If Mr. Jones also decides to buy gifts for his children and the cost of each gift is f, then the total cost of the gift he bought for his children is yf where y is the number of gifts he bought for his children.

The total amount paid by Mr. Jones will be expressed by the summing all the derived function as shown;

2f+dp+z(d+2)+yf

= 2f+yf+ dp+z(d+2)

= 2f+2y+dp+z(d+2)

Hence the algebraic expression for how much money Mr Jones should pay at the gift shop till if he also decides to buy gifts for his children and the cost of each gift is f is expressed as 2f+2y+dp+z(d+2)

The simplified ratio f:h:w is 20:15:8.

The ratio of f:h:w, we need to combine the given ratios of f:h and f:w.

The ratio f:h is given as 4:3 means that for every 4 units of f, there are 3 units of h.

The ratio f:w is given as 5:2 means that for every 5 units of f, there are 2 units of w.

To simplify the ratio f:h:w, we need to find the common factors among the three quantities (f, h, and w).

The common factor is f.

So, the simplified ratio is obtained by dividing each quantity by the common factor f.

Dividing f by f results in 1, which simplifies the ratio.

Dividing h by f gives us h/f, and dividing w by f gives us w/f.

Therefore, the simplified ratio f:h:w is 1:h/f:w/f.

Since h/f = 3/4 and w/f = 2/5, the simplified ratio becomes:

1 : 3/4 : 2/5

To remove the fractions, we can multiply each term by a common multiple of the denominators.

The least common multiple (LCM) of 4 and 5 is 20.

Multiplying the ratio by 20, we get:

20 : (3/4) × 20 : (2/5) × 20

which simplifies to:

20 : 15 : 8

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Answer:

[tex](-6 ,3 )[/tex]

Step-by-step explanation:

Midpoint Formula: [tex](\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )[/tex]

Simply plug in your 2 coordinates into the midpoint formula to find midpoint:

[tex](\frac{-2+-10}{2} ,\frac{7+-1}{2} )[/tex]

[tex](\frac{-2-10}{2} ,\frac{7-1}{2} )[/tex]

[tex](\frac{-12}{2} ,\frac{6}{2} )[/tex]

[tex](-6 ,3 )[/tex]

Answer:

The constant of proportionality is 2.5

Step-by-step explanation:

A direct proportion is of the form

y = kx where k is the constant of proportionality

y = 2.5x

The constant of proportionality is 2.5

Answer:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form  or  

where

k is the constant of proportionality

In this problem we have

so

the constant of proportionality k is equal to

therefore

the answer is

Step-by-step explanation:The constant of proportionality in the equation  is  

Further explanation:

The relation is defined as the relationship between the input values and output values.

The x coordinates are the domain of the function and the y coordinates are the range of the function.

Given:

The equation is  

Explanation:

The proportionality equation can be expressed as follows,

The value of  changes as  changes. If the value of  increases then the value of y is also increasing.

The equation can be expressed as follows,

The inversely proportional relationship can be expressed as,

Here,  is the proportionality constant.

The given equation is  

The y is the independent variable and  is the dependent variable.

The proportionality constant is 2.5.

The constant of proportionality in the equation  is  

Answer:

f(x) = 1/4x +2

Step-by-step explanation:

The y-intercept formula is y = mx + b. b is the y-intercept. The line crosses the y-axis at 2, so the y-intercept is 2. m is the slope and it is rise/run (rise over run). It rises (from the y-axis) once and runs 4 times. Therefore, the slope is 1/4. The equation is f(x) = 1/4x +2.

The probability that a randomly chosen car will need no repairs is 72%. The probability that a car will need no more than one repair is 92%. The probability that a car will need some repairs is 28%.

To find the probability of no repairs, we subtract the sum of the probabilities of needing one, two, or three or more repairs from 1. The probability of needing one repair is 17%, so the probability of no repairs is 1 - 0.17 = 0.83. However, we also need to consider the probabilities of needing two repairs (7%) and three or more repairs (4%). So, the probability of no repairs is adjusted by subtracting these probabilities as well. Thus, the final probability of no repairs is 1 - (0.17 + 0.07 + 0.04) = 0.72, or 72%.

To find the probability of no more than one repair, we need to sum the probabilities of needing no repairs and needing one repair. As mentioned earlier, the probability of no repairs is 0.72. The probability of needing one repair is 0.17. Therefore, the probability of no more than one repair is 0.72 + 0.17 = 0.89, or 89%.

Finally, to find the probability of some repairs, we subtract the probability of no repairs from 1. We already determined that the probability of no repairs is 0.72. Therefore, the probability of some repairs is 1 - 0.72 = 0.28, or 28%.

In summary, the probability that a car chosen at random will need no repairs is 72%. The probability of no more than one repair is 89%, and the probability of some repairs is 28%.

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Answer:

See below

Step-by-step explanation:

Let the number be n or m

1: The product of a number and 8÷4

2: five times a number decreased by eight

3: The sum of the square of a number and a second number

4: three times the difference of a number and seven

5: 9.85 less than the product of 37 and a number

a) The characteristic equation for matrix A, given as 0 3 -1 0 -1 3, is entered as [tex]p^3 - 3p^2 + 2p = 0[/tex].

b) The eigenvalues of the matrix A are entered as p = 0, p = 1, p = 2.

c) To find a matrix P that orthogonally diagonalizes A, further information is needed.

a) The characteristic equation is obtained by finding the determinant of (A - pI), where A is the given matrix and p is the parameter. In this case, the matrix A is 0 3 -1 0 -1 3. Subtracting p from the diagonal entries, the determinant is calculated, resulting in [tex]p^3 - 3p^2 + 2p = 0[/tex].

b) To find the eigenvalues, we set the characteristic equation equal to zero and solve for p. In this case, we have [tex]p^3 - 3p^2 + 2p = 0[/tex]. By factoring out p, we get [tex]p(p^2 - 3p + 2) = 0[/tex]. The roots of this equation are p = 0, p = 1, and p = 2. Therefore, the eigenvalues of matrix A are 0, 1, and 2.

c) To find a matrix P that orthogonally diagonalizes A, we need to determine the corresponding eigenvectors for each eigenvalue. However, the information provided does not include the eigenvectors or specify any additional requirements to find matrix P. Without the eigenvectors or further instructions, it is not possible to determine the matrix P that orthogonally diagonalizes matrix A.

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The range of the exponential function y is [0, 62,150]

In the given function of the exponential function, [tex]y = 62,150 (0.9999)^x[/tex], x is the number of months since the car was purchased.

The initial value of the function is 62,150. The car depreciates over time because the function decreases when the value of x increases. The base of the exponential function is 0.9999 which is less than 1.

The range of the exponential function y based on its equation and the context of the problem is [0, 62,150].The reason for this is because the initial value of the function is 62,150.

This means that the value of y can never be more than 62,150. Also, the base of the exponential function is less than 1 which means that the function decreases over time.

Therefore, the minimum value of the function is 0. Therefore, the range of the exponential function y is [0, 62,150]. Hence, the answer is [0, 62,150].

An exponential function is what?

Calculating the exponential growth or decay of a given set of data is done using an exponential function, which is a mathematical function. Exponential functions, for instance, can be used to estimate population changes, loan interest rates, bacterial growth, radioactive decay, and disease spread.

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Step-by-step explanation:

(x - 2) 2 - 16 =0

2 - 16 (x - 2) =0

2x - 16x - 4 + 32 = 0

2x - 16x = 0 + 4 - 32

-14x = -28

x = -28/-14

x = 2

Double Checking Answer:

2 - 16 (2 - 2)

2 - 16 (0)

=0

OR

2 - 16 × (2 - 2)

4 - 32 - 4 + 32

= 0

;)

Answer:

40

Step-by-step explanation:

Answer:

Vertex : (-2,-121)

Roots : x=9,-13

Step-by-step explanation: Rewrite the vertex form and use this form to fine the vertex (h,k).

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with zero and solve for x.

I hope this helps you out.

Median length of time required to review an application = (45 + 100)/2= 72.50 Hence, the correct option is A, 72.50

Given times (in minutes) that several underwriters took to review applications for similar insurance coverage are 100, 110, 42, and 45 and we need to find the median length of time required to review an application.What is the median?The median is the middle value when a data set is ordered from least to greatest.To find the median of a data set, the first step is to write the data set in order from least to greatest. In the above given dataset,Let's first order these numbers from least to greatest;42, 45, 100, 110 Now we can see the median will be between 45 and 100, so we just need to find the mean of these two numbers. the correct option is A

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The probability that a randomly selected grapefruit weighs more than 1.25 pounds is approximately 0.019.

To find the probability that a randomly selected grapefruit weighs more than 1.25 pounds, we need to calculate the area under the normal distribution curve to the right of 1.25 pounds.

First, we calculate the z-score using the formula:

z = (x - μ) / σ,

where

x is the value we're interested in,

μ is the mean, and

σ is the standard deviation.

In this case, x = 1.25, μ = 1, and σ = 0.12.

z = (1.25 - 1) / 0.12 = 2.08

Next, we look up the corresponding area under the standard normal distribution curve for a z-score of 2.08. Using a standard normal distribution table or calculator, we find that the area to the right of 2.08 is approximately 0.019.

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Answer:

8 times

Step-by-step explanation:

15+11+9+12+6+11=64

11 out of 64 is purple

so ?:50

    11:64

do the ratio:

64/1.28=50

11/1.28=8.59375

So Rosa would pick it about 8 times

The probability of getting exactly one queen when selecting 49 cards from a shuffled deck is 28.3%.

To determine the probability of selecting a queen from a shuffled deck of cards, you should divide the number of queen cards by the total number of cards in the deck.

Since there are 4 queens in a standard deck of 52 cards, the probability of drawing a queen from a shuffled deck is 4/52, or 1/13.

To calculate the probability of getting a queen when selecting 49 cards from a shuffled deck, you need to use the binomial probability formula.

In this case, the probability of getting a queen on any one draw is p = 1/13, and the number of trials is n = 49.

The formula is:

[tex]P(x) = nCx * p^x * (1-p)^(n-x)[/tex]

where x is the number of successes, and nCx is the number of combinations of n things taken x at a time.

In this case, x = 1 because we want to find the probability of getting one queen. So,

[tex]P(1) = 49C1 * (1/13)^1 * (12/13)^48[/tex]

P(1) = 49 * (1/13) * 0.7328

P(1) = 0.283

This means that the probability of getting exactly one queen when selecting 49 cards from a shuffled deck is approximately 0.283 or 28.3%.

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In other words, everything but -30.

========================================================

Explanation:

Let's solve for x

[tex]-\frac{1}{5}x + 3 \le 7\\\\-\frac{1}{5}x \le 7-3\\\\-\frac{1}{5}x \le 4\\\\x \ge 4*(-5)\\\\x \ge -20\\\\[/tex]

Note how the inequality sign flips when we multiply both sides by the negative number.

Since x can be -20 or larger, this means that the values -20,-10,0,10,20 are all solutions. Only -30 is a non-solution. It might help to draw out a number line to see which values work and don't work.

--------------------------------

An alternative method is to plug each value from the set {-30,-20,-10,0,10,20} into the original inequality and simplifying. If you get a true statement at the end, then the value is a solution.

I'll show an example with x = -30 and x = -20 to show a non-solution and a solution. I'll let you check the others.

So let's start with x = -30

[tex]-\frac{1}{5}x + 3 \le 7\\\\-\frac{1}{5}(-30) + 3 \le 7\\\\6 + 3 \le 7\\\\9 \le 7\\\\[/tex]

The last statement is false because 9 is not 7 or smaller than 7. So that's why x = -30 is not a solution.

Now let's try x = -20

[tex]-\frac{1}{5}x + 3 \le 7\\\\-\frac{1}{5}(-20) + 3 \le 7\\\\4 + 3 \le 7\\\\7 \le 7\\\\[/tex]

This is a true statement since any number is equal to itself.

You should find that x = -10, x = 0, x = 10, and x = 20 lead to true statements.

Answer:A

Step-by-step explanation:

the girl that said it first i stoled it

Answer:

the cars value decreased by $8400

The correct answer is (1) 3/7. they can finish the ditch in (3/7) of the time that the worker takes working alone.

To solve this problem, let's assume that the worker takes 1 unit of time to complete the ditch working alone.

The worker's rate of work is 1 ditch per unit of time.

Each assistant works at a rate that is 2/3 as fast as the worker. Therefore, each assistant's rate of work is (2/3) ditch per unit of time.

When all three of them work together, their combined rate of work is the sum of their individual rates.

Worker's rate + 2 Assistants' rate = 1 + 2(2/3) = 1 + 4/3 = 7/3

Hence, they can finish the ditch in (3/7) of the time that the worker takes working alone.

Therefore, the correct answer is (1) 3/7.

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Answer:

B./8

Step-by-step explanation:

Answer:

340,000

Step-by-step explanation:

10 × 34,000= 340,000

Answer: WHAT ARE YOU TRYING TO DO FIND THE SLOPE OR FIND X OR FIND SOMETHING DIFFRENT

Step-by-step explanation:

Answer:

c. 31(-10) = -310

Step-by-step explanation:

because...........

Answer:

LHK =  101

Step-by-step explanation:

LGK + LHK = 180

79 + LHK = 180

LHK = 180 -79

LHK =  101

A postulate is a statement that is assumed true without proof. A theorem is a true statement that can be proven.

Answer: LHK= 101

No

Check

-4 = -2(1)

L.H.S

= -2(1)

= -2

is not = R.H.S.

Answer:

no it can’t be the solution

Step-by-step explanation:

y=–2x

–4=–2(1)

–4=–2 (error)

Answer:

We can't make plots here, but I can give an explanation.

A scatter plot provides a visual representation of the showcased data as opposed to a numerical display, as such allowing more ease of use when extracting data.

Step-by-step explanation: