What’s the awnser to that question

The expression that shows that Angie still owes victor is 20-d.

In algebra, an expression can be used to represent a value that may or may not be dependent on the values given to the variables that appear in the expression. The semantics associated with the expression's symbols are used to determine its value. The expression's context affects the semantic choice. Depending on the presumed order of operations by the context.

When an expression involves division by 0, for example, the semantic rules may state that it does not indicate any value; yet, despite having an undefined value, these expressions are still well-formed. Expressions generally have a wide range of meanings.

Given,

The number of dollars borrowed by Angie from victor is 20 dollars

And also given that Angie paid d dollars back to victor.

The expression that shows that Angie still owes victor is 20-d.

Therefore, the expression that shows Angie still owes victor is 20-d.

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Answer:

  $9,039.81

Step-by-step explanation:

Given the exponentially decaying price history of a vehicle as $21,000; $18,900; $17,010; $15,309; $13,778.10; $12,400.29; you want to know the value after 8 years of depreciation at the same rate.

The multiplier of value each year is 18900/21000 = 0.9. This means the value of the vehicle can be represented by the price function ...

   price = (initial price) · 0.9^t

where t is the number of years the vehicle has depreciated.

After 8 years, the value will be ...

  price = $21000·0.9^8 ≈ $9,039.81

After 8 years, the value of the car will be $9,039.81.

If the selling price is $90 and the rate of sales tax is 3%, then the total price is $92.7

The selling price = $90

The rate of sales tax = 3%

The amount of sale tax = The selling price × The rate of sales tax

Substitute the values in the equation

The amount of sale tax = 90 × (3/100)

= 90 × 0.03

= $2.7

The total price = The selling price + The amount of sale tax

Substitute the values in the equation

The selling price  = 90 + 2.7

= $92.7

Hence, if the selling price is $90 and the rate of sales tax is 3%, then the total price is $92.7

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The vertical cross-section when the knife slices to the butter parallel to its sides is a rectangle with dimensions of 5 in by 2.5 in or 3 in by 2.5 in.

A three dimensional figure is a polygon with length, width and height. Examples are cone, cylinder, prism, pyramid and so on.

The shape of the butter is rectangular prism. The vertical cross-section when the knife slices to the butter parallel to its sides is a rectangle with dimensions of 5 in by 2.5 in or 3 in by 2.5 in.

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Answer:

the answer for this question is 3 in 2.5 inches or 5 in 2.5 inches

Step-by-step explanation:

The probability that a woman was wearing a belt given that she was also carrying a purse is 0.333 or 33.3%.

To find the probability that a woman was wearing a belt given that she was also carrying a purse, we need to use conditional probability.

We know that out of the 30 women observed, 18 were carrying purses and 6 were both carrying purses and wearing belts.

This means that the number of women carrying purses who were also wearing belts is 6.
Therefore, the probability that a woman was wearing a belt given that she was also carrying a purse is:
P(wearing a belt | carrying a purse) = number of women wearing a belt and carrying a purse / number of women carrying a purse
P(wearing a belt | carrying a purse) = 6 / 18
P(wearing a belt | carrying a purse) = 0.333
Given the information provided, we can determine the probability of a woman wearing a belt, given that she is also carrying a purse.

First, we need to find the number of women carrying a purse and wearing a belt, which is 6. There are 18 women carrying purses in total.
So, to find the probability, we will use the formula:
P(Belt | Purse) = (Number of women wearing belts and carrying purses) / (Number of women carrying purses)
P(Belt | Purse) = 6 / 18
P(Belt | Purse) = 1/3 or approximately 0.33
Therefore, the probability that a woman was wearing a belt, given that she was also carrying a purse, is 1/3 or approximately 0.33.

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Answer:

8x-40

Step-by-step explanation:

Step-by-step explanation:

the answer is...

8x-40

Please follow me!!!

Answer:

Alright let's do this.

First Rewrite the question:

What operation do u use to find the cost of a drink and a popcorn for one person? ​

Ok when solving you need to take Maria's name and only use first letter.

I am just going to show the you how to do the question.

________________________________________________________

P= Popcorn (Cost: $8.00)

D= Drink (Cost: $5.00)

M (Maria) = $8 + $5 = (Answer)

F (Her Friend) = $8 + $5 = (Answer)

A quick way to solve to find the total cost for 2 people.

8 x 2 = 16

5 x 2 = 10

The total cost that Maria has to pay for her and her friend is $26.00.

The operation used is Addition or Multiplication.

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Hope this helps! Have a great day!

please check the answer

Answer:

V=11550cm³

Step-by-step explanation:

V=1/3pier²h

V=1/3×22/7×21²×25

V=22×21×25

V=11550cm³

(A) Usain Bolt's average speed in meters per second was approximately 10.36 m/s.

(B) Usain Bolt's average speed in miles per hour was approximately 23.35 mph.

(A) Average speed = Distance / Time

Average speed = 200 meters / 19.30 seconds

Average speed = 10.36 meters per second

Therefore, Usain Bolt's average speed in meters per second was approximately 10.36 m/s.

(B) 1 mile = 2580 feet

Converting the distance from meters to miles:

Distance in miles = Distance in meters / (1 meter / 3.28 feet) / (1 mile / 5280 feet)

Distance in miles = 200 meters / 3.28 / 5280 miles

Time in hours = Time in seconds / (60 seconds / 1 minute) / (60 minutes / 1 hour)

Time in hours = 19.30 seconds / 60 / 60 hours

Average speed = Distance in miles / Time in hours

Average speed = (200 meters / 3.28 / 5280 miles) / (19.30 seconds / 60 / 60 hours)

Average speed = 23.35 miles per hour

Therefore, Usain Bolt's average speed in miles per hour was approximately 23.35 mph.

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Let's find out by replacing d with -12. Then we'll simplify the left side

|d+9| = 3

|-12+9| = 3 .... replace d with -12

|-3| = 3

3 = 3

Since we get a true statement, ie the same thing on both sides, this means the original equation is true when d = -12.

Therefore d = -12 is one of the two solutions to the original equation.

Answer:

True

Step-by-step explanation:

We can check this by substituting x = - 12 into the left side of the equation. If the result is equal to the right side then it is a solution.

| - 12 + 9 | = | - 3 | = 3 = right side

Thus x = - 12 is one of the solutions to the equation.

[ The other solution is x = - 6 ]

Answer:

Solve 0 = 4x2 + 12x + 9. select the equation that shows the correct substitution of a, b, and c in the quadratic formula.

We know that quadratic equation for:

ax^2 + bx + c= 0…………(1) is

X = {- b + - √( b^2 -4ac) } / 2a ……….(2)

for calculating the value of x. where a, b and c values are given in numeric.

So , here if we compare the value of 0 = 4x^2 + 12x + 9 with equation no 1 then we can get

a = 4 , b= 12 and c = 9

So from these we can get

X = {- 12 + - √(12^2 – 4*4*9)} / 2*4

X = {- 12 + - √(12*12 – 4*4*9) } / 2*4

X = - 12 + - (√144 – 144) / 2*4

X = - 12 + 0 /8

X= - 3/2

So the implemented equation of 0 = 4x^2 + 12x + 9. Will be X ={ - 12 + - √(12*12 – 4*4*9 )/ 2*4} and the calculated value of x will be -3/2

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We get the value of x as - 3 / 2 and the quadratic equation is represented by a x² + b x + c= 0.

We know that the formula for quadratic equation is given by:

a x² + b x + c= 0

Here, we have the quadratic equation as:

4x² + 12 x + 9 = 0

We will solve it by using middle term splitting.

We can write the equation as:

4 x² + 6 x + 6 x + 9 = 0

Taking common factors:

2 x ( 2 x + 3) + 3 ( 2 x + 3) = 0

Again taking the common factors:

(2 x + 3)(2 x + 3) = 0

Solving it to get the value of x:

x = - 3 / 2 and - 3 / 2.

Therefore, we get the value of x as - 3 / 2 and the quadratic equation is represented by a x² + b x + c= 0.

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Answer:

2.033333333.....

Step-by-step explanation:

You would simplify it into 2 1/30 which then you divide 1 by 30 to get 0.0333333.... and just add them together to get 2.03333333....

Answer:

all positive real numbers and 0

Step-by-step explanation:

The function has a square root in the x value, so this function can't have negative values, because a negative value of x would give a complex number for f(x), and positive values of x gives positive values of f(x).

The function f(x) can be zero, if the value of x is zero:

\(f(0) = \sqrt{0} /2 = 0/2 = 0\)

So the function f(x) can only have positive values and the value 0.

Correct option: "all positive real numbers and 0"

Answer:

The center is (-7,-8) and the radius is sqrt (2/3)

Step-by-step explanation:

( x + 7 )^ 2 + ( y + 8 ) ^2 = 4 /6

The equation of a circle can be written as

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

Rewriting

( x - -7 )^ 2 + ( y - -8 )^ 2 = (sqrt(2/3)^2

The center is (-7,-8) and the radius is sqrt (2/3)

Answer:

center:    (-7,-8)         radius: 2/3

Step-by-step explanation:

i got this from wegnerkolmp2741o. thank you wegnerkolmp2741o!!!!!

also got this correct on khan academy

The equation of the new function, obtained by vertically stretching the exponential function f(x) = 2ˣ by a factor of 4, is g(x) = 4 * 2⁹.

To vertically stretch the exponential function f(x) = 2ˣ by a factor of 4, we need to multiply the function by 4. This will result in a new function, let's call it g(x).

To find the equation of the new function, we multiply the original function f(x) by 4.

Therefore, the equation of the new function g(x) is:

g(x) = 4 * f(x)

Substituting the original function f(x) = 2ˣ into the equation, we get:

g(x) = 4 * 2ˣ

This is the equation of the new function after vertically stretching f(x) by a factor of 4.


When we vertically stretch a function, we multiply the original function by a factor. In this case, we multiplied the function f(x) = 2ˣ by 4 to get the new function g(x). This stretches the graph of f(x) vertically, making it four times taller.


The equation of the new function, obtained by vertically stretching the exponential function f(x) = 2ˣ by a factor of 4, is g(x) = 4 * 2⁹.

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Answer:

A

Step-by-step explanation:

divide 1125 by 30

hope this helps

Answer:

A 37.5

Step-by-step explanation:

Divide 1125yards by 30minutes

Answer:

the  answer is  this seems to be a trick question because you have to divide 6 meters by two to get 3 cm and the four also gets divided by 2 cm and that is how i got the aanswer d

Step-by-step explanation:

Answer:

The answer is 21

Step-by-step explanation:

This should help you

Answer:

The ratio for 96 inches wide and 54 inches high is 16:9.

Step-by-step explanation:

96 : 54

÷6 : ÷6

16 : 9

When simplifying ratios, look for their biggest common factor, which is 6 in this case.

Answer:

96:54 or 32

Step-by-step explanation:

Answer:the 3rd one

Step-by-step explanation:

The average time a molecule spends in its reservoir is known as the residence time.

Residence time is an important concept in environmental science, particularly in the study of water quality and pollution. It refers to the average amount of time that a substance, such as a molecule or a pollutant, spends in a particular environment before it is either removed or transformed. For example, in a river, the residence time of a pollutant would be the amount of time it takes for that pollutant to be either broken down by natural processes or transported downstream to another location. By understanding residence time, scientists can better predict how pollutants will move through the environment and where they are likely to accumulate.

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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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Answer:[

−

2

,

∞

)

,

{

x

|

x

≥

−

2

}

Step-by-step explanation:

Answer:

300 seconds

Step-by-step explanation:

The first dog run at v₁ = 15 m/sec     the second one run at  v₂ = 12 m/sec

we know that  d = v*t  then  t  =  d/v

Then the first dog will take  300/ 12  =  25 seconds to make a turn

The second will take   300 / 15   =   20 seconds to make a turn

Then the first dog in 12 turns 12*25 will be at the start point, and so will the second one at the turn 15.

To check  first dog    12 *  25 = 300

And the second dog 15 * 20 = 300

That means that time required for the two dogs to be at the start point together is

300 seconds, in that time the first dog finished the 12 turns, and the second had ended the 15.

Another procedure to solve this problem is as follows:

between  12  m/sec and  15 m/sec   the minimum common multiple  is 300 ( 300 is the smaller number that accept 12 and 15 as factors         12*15 = 300) Then when time arrives at 300 seconds the two dogs will be again in the starting point

Explanation:

Choice A simplifies to 9n-8 after combining the like terms -7n+16n to get 9n

Choice C simplifies to 9n-8 for similar reasoning. The n+8n turns into 9n

This shows choices A and C are equivalent to choice D. Choice B isn't the same because 9(n-8) = 9n-9*8 = 9n-72. Use the distributive property.

Answer:

B. 9(n - 8)

Step-by-step explanation:

- 8 - 7n + 16n

-8 (-7n + 16n or 16n - 7n)

-8 + 9n

9n - 8

9(n - 8)

9n - 72

n - 8 + 8n

9n - 8

9n - 8

The given system of linear equation is-x+3y-2z=1 2x+3z=0 x+2z=2. To find the reduced row-echelon form of the augmented matrix, we will use Gauss-Jordan elimination method.The augmented matrix is [ -1 3 -2 1 2 3 0 2 ]

For simplicity we will use

R1 for Row 1, R2 for Row 2, R3 for Row 3 and R4 for Row 4

of the augmented matrix. R1: -1 3 -2 1 | 2. Dividing

R1 by -1] R1: 1 -3 2 -1 | -2

Multiplying R1 by -1] R2: 2 0 3 0 | -3 R3: 1 0 2 0 | 2 R2: 1 0 1.5 0 | -1.5 [Dividing R2 by 2] R1: 1 0 0 -1/3 | 1/3 [R1 + (3 x R2)] R3: 0 0 1 0 | 1 [R3 - 2R2]R2: 0 0 0 0 | 0

So, the final matrix after using Gauss-Jordan elimination method will be:1 0 0 -1/3 1/30 0 1 0 10 0 0 0 0.Now, converting the final matrix into the form of equations will give us: x - (1/3)z = 1/3z = 1. This system of linear equations can be solved using matrix method. A matrix is a rectangular array of numbers or symbols which are arranged in rows and columns. The system of linear equations can be represented in matrix form as AX = B, where A is the matrix of coefficients of variables, X is the matrix of variables and B is the matrix of constants.In this given system of linear equations, the matrix A can be represented as follows:  -1 3 -2 2 0 3 0 2 1The matrix X can be represented as follows: x y zThe matrix B can be represented as follows: 1 0 2Using Gauss-Jordan elimination method, we can find the row-reduced echelon form of the augmented matrix, which will give the solution to the given system of linear equations. After applying the Gauss-Jordan elimination method, we get the following matrix: 1 0 0 -1/3 1/3 0 0 1 0 0 0 0 0 0 0 0This matrix can be represented in the form of equations as follows: x - (1/3)z = 1/3z = 1Therefore, the solution to the given system of linear equations is x = 1/3, y = 0 and z = 1.

Thus, we can see that by using the Gauss-Jordan elimination method, we can find the row-reduced echelon form of the augmented matrix, which gives the solution to the given system of linear equations.

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Answer:

15.07352941

Step-by-step explanation:

in short 15.07