Four friends went to the coast on vacation
and wanted to split the trip's costs evenly
between them. The house rental cost $400.
The cleaning fee was $75 and they ordered
pizza the first night for $25. How much
should each friend contribute?
A. $500
B. $125
C. $100
D. $75

Answer:

When cooper was 15 years old, he scored an 85 on an iq test. he took the test again when he was 35 years old and scored an 85 again. this indicates that the iq test is highly: __________

Reliable

Because his scores were so close together the test would be considered as Reliable.

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The effective cost of the reverse mortgage if the senior lives out the entire loan is 12.45%.

The effective cost, or the total cost of the reverse mortgage if the senior lives out the entire loan, can be calculated as follows:

The answer is 8.88%.

To calculate the effective cost, we need to consider the interest rate and the origination fee. Since the given scenario states that there is no origination fee, we can ignore it for this calculation.

The interest rate is 8%, which means that the loan balance will increase by 8% per year. Over a 20-year term, we need to calculate the total compounded interest on the initial loan amount of $200,000.

Using the compound interest formula, we can calculate the total cost as follows:

Total Cost = Loan Amount * (1 + Interest Rate)^Number of Years

Total Cost = $200,000 * (1 + 0.08)^20

Total Cost ≈ $200,000 * 4.66096

Total Cost ≈ $932,192

Therefore, the effective cost of the reverse mortgage if the senior lives out the entire loan is approximately $932,192.

To determine the effective cost as a percentage, we can calculate the percentage increase in the loan balance over the loan term:

Percentage Increase = (Total Cost - Loan Amount) / Loan Amount * 100

Percentage Increase = ($932,192 - $200,000) / $200,000 * 100

Percentage Increase ≈ $732,192 / $200,000 * 100

Percentage Increase ≈ 366.096%

Thus, the effective cost as a percentage is approximately 366.096%.

However, if the given options for the answer are limited to 12.45%, 7%, 8.88%, and 16.23%, the closest option to the actual effective cost of approximately 366.096% is 8.88%.

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a. when x = 10, dy/dx = -1 and dy/dt = -20.

b. when x = 25, dy/dx = -4/25 and dy/dt = -125/4.

c. when x = 50, dy/dx = -1/25 and dy/dt = -500.

What is implicit differentiation?

The process of finding the derivative of dependent variable in an implicit function by differentiating each term separately by expressing the derivative of the dependent variable as a symbol and by solving the resulting expression for the symbol.

To find dy/dx, we can use implicit differentiation:

Now we can substitute the given values of x and y to find the corresponding values of dy/dt and dy/dx.

(a) If x = 10 and xy = 100, then y = 10:

dy/dx = -y/x = -10/10 = -1

Using the chain rule:

dy/dt = dy/dx * dx/dt

20 = -1 * dx/dt

dx/dt = -20

Therefore, when x = 10, dy/dx = -1 and dy/dt = -20.

(b) If x = 25 and xy = 100, then y = 4:

dy/dx = -y/x = -4/25

Using the chain rule:

dy/dt = dy/dx * dx/dt

20 = (-4/25) * dx/dt

dx/dt = -125

Therefore, when x = 25, dy/dx = -4/25 and dy/dt = -125/4.

(c) If x = 50 and xy = 100, then y = 2:

dy/dx = -y/x = -2/50 = -1/25

Using the chain rule:

dy/dt = dy/dx * dx/dt

20 = (-1/25) * dx/dt

dx/dt = -500

Therefore, when x = 50, dy/dx = -1/25 and dy/dt = -500.

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Answer:

oml not u making me do math

Step-by-step explanation:

not u making me do math

Step-by-step explanation:

you might have made some mistakes in the description.

I see the following equation :

5×log5(9 - x) = 6

that means log to the base of 5.

log5(9 - x) = 6/5

and now we put everything up as power of 5 :

5^log5(9 - x) = 5^(6/5)

9 - x = 5^(6/5) = 6.898648307...

x = 9 - 6.898648307... = 2.101351693...

but has this anything to do with the responses you have listed ? no.

so, I think there is something missing or mistyped.

Answer:

X=20

Step-by-step explanation:

Verticals angles have same degree.

3x=x+40

x=20

Answer:

The value of \(x\) would be 20°.

Step-by-step explanation:

Since vertical angles are equivalent, and ∠SRT and ∠VRW are vertical angles, you can create the equation \(3x = x + 40\) to solve for \(x\). \(3x = x+40\) ⇒ \(2x = 40\) ⇒ \(x=20\)°, so that would be the correct answer.

Answer:

x>-3

Step-by-step explanation:

Answer:

x > -3

Step-by-step explanation: First you have to  distribute the 10 to  3x +2 and 7 to 2x -4 . 10 times 3x + 2 is 30x + 20. 7 times 2x -4 is 14 x -28 .  Subtract 20 from both sides, which is  30x = 14x-48 , because -28 minus 20 is -48.  Subtract 14 x from both sides which is gonna be  16x >-48 , divide both sides by 16 which is x > -3.

Answer:

a) £108
btw i use sparx maths too

Step-by-step explanation:

Answer:

you can but dont touch anything inside i did when i was a kid and electrocuted myself.

Step-by-step explanation:

careful. i dont recomend using it though

Answer:

that happed to me i still use the outlet sometime but i wouldn't take any chances

Step-by-step explanation:

Answer:

Super grillers

Step-by-step explanation:

1/2 converted to a decimal is 0.5, while 4/9 converted to a decimal is 0.444...

0.5 is larger than 0.444...

In mathematics, the place value chart is a tool that helps students understand the value of digits in a number. It is a visual representation of how digits are grouped and arranged to represent numbers. The place value chart is arranged in columns, with each column representing a different place value.

The place value chart starts with the ones place, also called units place. This is the rightmost column and it represents the ones digit in a number. The next column is the tens place, which represents the tens digit in a number. The hundredth place represents the hundreds digit and so on. Each column is ten times larger than the previous one.

A place value chart can be used to understand the value of a digit in a number.

Place value chart also helps to understand decimal numbers, which are numbers that have a decimal point. The decimal point separates the whole numbers from the fractional numbers. Each place to the right of the decimal point represents a smaller value.

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The dividing by 0.5 is not the same as dividing by 2 , because 0.5 and 2 are different numbers  .

Let us understand the Division with the help of example ;

let the number be 10 ;

first we divide the number 10 by 0.5 ;

this can be written mathematically as ⇒ \(\frac{10}{0.5}\)  ;

⇒ \(\frac{10}{\frac{1}{2} }\) = \(10\times2\) = 20 ;

So , on dividing 10 by 0.5 , we get the answer as 20 .

Second , the number 10 is divided by 2 ;

this can be written mathematically as ⇒ \(\frac{10}{2}\) ;

⇒ \(\frac{10}{2 }\)  = 5  ;

So , on dividing 10 by 2 , we get the answer as 5  .

Therefore , dividing by 0.5 is not same as dividing by 2 .

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Answer:

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

The nth term is visible in the sum:

Apply n = 10 to find the 10th term:

The matching choice is C.

Answer: C. Even with a higher income, Aiyana would not save.

Step-by-step explanation: When Aiyana increases her expenses for rent, car, and non-essentials, it means that she is allocating more of her income towards these categories.  As a result, her disposable income, or the amount of money left after paying for necessary expenses, would decrease.

If Aiyana's income remains the same and she increases her expenses, it would lead to a situation where her expenses exceed her income.  This would make it difficult for her to save money since she would be spending more than what she earns.

Answer:

a(n)= 1/2 * (-8) n-1

Step-by-step explanation:

In a geometric sequence, the ratio between successive terms is constant. This means that we can move from any term to the next one by multiplying by a constant value. Let's calculate this ratio over the first few terms:

\dfrac{-256}{32}=\dfrac{32}{-4}=\dfrac{-4}{\frac12}=\blue{-8}  

32

−256

​

=  

−4

32

​

=  

2

1

​

−4

​

=−8start fraction, minus, 256, divided by, 32, end fraction, equals, start fraction, 32, divided by, minus, 4, end fraction, equals, start fraction, minus, 4, divided by, start fraction, 1, divided by, 2, end fraction, end fraction, equals, start color #6495ed, minus, 8, end color #6495ed

We see that the constant ratio between successive terms is \blue{-8}−8start color #6495ed, minus, 8, end color #6495ed. In other words, we can find any term by starting with the first term and multiplying by \blue{-8}−8start color #6495ed, minus, 8, end color #6495ed repeatedly until we get to the desired term.

Let's look at the first few terms expressed as products:

nn 111 222 333 444

h(n)\!\!\!\!\!h(n)h, left parenthesis, n, right parenthesis \red{\dfrac12}\cdot\!\!\!\left(\blue{-8}\right)^{\,\large0}\!\!\!\!\!\!  

2

1

​

⋅(−8)  

0

start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030, dot, left parenthesis, start color #6495ed, minus, 8, end color #6495ed, right parenthesis, start superscript, 0, end superscript \red{\dfrac12}\cdot\!\!\!\left(\blue{-8}\right)^{\,\large1}\!\!\!\!\!\!  

2

1

​

⋅(−8)  

1

start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030, dot, left parenthesis, start color #6495ed, minus, 8, end color #6495ed, right parenthesis, start superscript, 1, end superscript \red{\dfrac12}\cdot\!\!\!\left(\blue{-8}\right)^{\,\large2}\!\!\!\!\!\!  

2

1

​

⋅(−8)  

2

start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030, dot, left parenthesis, start color #6495ed, minus, 8, end color #6495ed, right parenthesis, squared \red{\dfrac12}\cdot\!\!\!\left(\blue{-8}\right)^{\,\large3}  

2

1

​

⋅(−8)  

3

start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030, dot, left parenthesis, start color #6495ed, minus, 8, end color #6495ed, right parenthesis, cubed

We can see that every term is the product of the first term, \red{\dfrac12}  

2

1

​

start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030, and a power of the constant ratio, \blue{-8}−8start color #6495ed, minus, 8, end color #6495ed. Note that this power is always one less than the term number nnn. This is because the first term is the product of itself and plainly 111, which is like taking the constant ratio to the zeroth power.

Thus, we arrive at the following explicit formula (Note that \red{\dfrac12}  

2

1

​

start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030 is the first term and \blue{-8}−8start color #6495ed, minus, 8, end color #6495ed is the constant ratio):

a(n)=\red{\dfrac12}\cdot\left(\blue{-8}\right)^{\large{\,n-1}}a(n)=  

2

1

​

⋅(−8)  

n−1

a, left parenthesis, n, right parenthesis, equals, start color #df0030, start fraction, 1, divided by, 2, end fraction, end color #df0030, dot, left parenthesis, start color #6495ed, minus, 8, end color #6495ed, right parenthesis, start superscript, n, minus, 1, end superscript

Note that this solution strategy results in this formula; however, an equally correct solution can be written in other equivalent forms as well.

If E= Emily's homeroom class students, and S = Santiago's homeroom class students then

The area of the remaining rectangular plot of land is 4680m²

Area of rectangle:

Area of rectangle means the area covered by the rectangle.

The formula for area of rectangle is

A = l x b

where,

l is the length of the rectangle

b is the breadth or width of the rectangle

Given,

A rectangular plot of land measures 40.0 m by 120.0 m, with a parcel 10.0 m by 12.0 m out of one corner for an electrical transformer.

Here we need to find the remaining area of the rectangular plot land.

For that first, we have to find the area of each separately,

Like,

The area of the rectangular plot is,

A₁ = 40.0 x 120.0 m²

A₁ = 4800m²

Similarly, the area of the electric transformer is,

A₂ = 10.0 x 12.0 m²

A₂ = 120m²

Now the remining area is,

A = A₁ - A₂

A = 4800 - 120 m²

A = 4680m²

Therefore, the area of the remaining rectangular plot is 4680m².

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given

Find

Product

Explanation

here , we use law of exponents

so ,

Final Answer

Product =

Answer:

B  (x - 6)² + (y + 4)² = 16

Step-by-step explanation:

From inspection of the graph:

General equation of a circle:  (x - a)² + (y - b)² = r²

(where (a, b) is the center and r is the radius)

Therefore, substituting the given values into the equation:

equation of the circle:  (x - 6)² + (y + 4)² = 16

Answer:

Answer B

Step-by-step explanation:

Centre of Circle (6,-4)

Radius = 4

Substitute in the Equation attached

\((x-h)^{2}+(y-k)^{2} =r^{2}\)

\((x-6)^{2} +(y-(-4))^{2} =4^{2}\)

\((x-6)^{2} +(y+4)^{2} =16\)

Main Answer:The linear combination of v = (13/14)u1 + (2/7)u2 + (47/14)u3  

Supporting Question and Answer:

How can we express a vector as a linear combination of  vectors using a system of equations?

To express a vector as a linear combination of  vectors using a system of equations, we need to find the coefficients that multiply each given vector to obtain the desired vector. This can be done by setting up a system of equations, where each equation corresponds to the components of the vectors involved.

Body of the Solution:

(a) To show that the vectors u1 = (2, 0, 3), u2 = (-3, 0, 2), and u3 = (0, 7, 0) form an orthogonal basis for R^3, we need to demonstrate two conditions: orthogonality and linear independence.

u1 · u2 = (2)(-3) + (0)(0) + (3)(2) = -6 + 0 + 6 = 0

u1 · u3 = (2)(0) + (0)(7) + (3)(0) = 0 + 0 + 0 = 0

u2 · u3 = (-3)(0) + (0)(7) + (2)(0) = 0 + 0 + 0 = 0

Since the dot product of every pair of vectors is zero, they are orthogonal.

   2.Linear Independence: We need to show that the vectors u1, u2, and u3 are linearly independent, meaning that no vector can be written as a linear combination of the other vectors.

We can determine linear independence by forming a matrix with the vectors as its columns and performing row operations to check if the matrix can be reduced to the identity matrix.

[A | I] = [u1 | u2 | u3 | I] =

[2 -3 0 | 1 0 0]

[0 0 7 | 0 1 0]

[3 2 0 | 0 0 1]

Performing row operations:

R3 - (3/2)R1 -> R3

R1 <-> R2

[1 0 0 | -3/2 1 0]

[0 1 0 | 0 1 0]

[0 0 7 | 0 0 1]

Since we can obtain the identity matrix on the left side, the vectors u1, u2, and u3 are linearly independent.

Therefore, the vectors u1 = (2, 0, 3), u2 = (-3, 0, 2), and u3 = (0, 7, 0) form an orthogonal basis for R^3.

(b) To write v = (1, 2, 3) as a linear combination of u1, u2, and u3, we need to find the coefficients x, y, and z such that:

v = xu1 + yu2 + z*u3

Substituting the given vectors and coefficients:

(1, 2, 3) = x(2, 0, 3) + y(-3, 0, 2) + z(0, 7, 0)

Simplifying the equation component-wise:

1 = 2x - 3y

2 = 7y

3 = 3x + 2y

From the second equation, we can solve for y:

y = 2/7

Substituting y into the first equation:

1 = 2x - 3(2/7)

1 = 2x - 6/7

7 = 14x - 6

14x = 13

x = 13/14

Substituting the found values of x and y into the third equation

3 = 3(13/14) + 2(2/7)

3 = 39/14 + 4/7

3 = 39/14 + 8/14

3 = 47/14

Therefore, we have determined the values of x, y, and z as follows:

x = 13/14

y = 2/7

z = 47/14

Thus, we can write the vector v = (1, 2, 3) as a linear combination of u1 = (2, 0, 3), u2 = (-3, 0, 2), and u3 = (0, 7, 0) as:

v = (13/14)u1 + (2/7)u2 + (47/14)u3

Therefore, v can be expressed as a linear combination of the given vectors.

Final Answer:Therefore,the linear combination of v = (13/14)u1 + (2/7)u2 + (47/14)u3  

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The linear combination of v = (13/14)u1 + (2/7)u2 + (47/14)u3  

To express a vector as a linear combination of  vectors using a system of equations, we need to find the coefficients that multiply each given vector to obtain the desired vector. This can be done by setting up a system of equations, where each equation corresponds to the components of the vectors involved.

Body of the Solution:

(a) To show that the vectors u1 = (2, 0, 3), u2 = (-3, 0, 2), and u3 = (0, 7, 0) form an orthogonal basis for R^3, we need to demonstrate two conditions: orthogonality and linear independence.

Orthogonality: We need to show that each pair of vectors is orthogonal, meaning their dot product is zero.

u1 · u2 = (2)(-3) + (0)(0) + (3)(2) = -6 + 0 + 6 = 0

u1 · u3 = (2)(0) + (0)(7) + (3)(0) = 0 + 0 + 0 = 0

u2 · u3 = (-3)(0) + (0)(7) + (2)(0) = 0 + 0 + 0 = 0

Since the dot product of every pair of vectors is zero, they are orthogonal.

  2.Linear Independence: We need to show that the vectors u1, u2, and u3 are linearly independent, meaning that no vector can be written as a linear combination of the other vectors.

We can determine linear independence by forming a matrix with the vectors as its columns and performing row operations to check if the matrix can be reduced to the identity matrix.

[A | I] = [u1 | u2 | u3 | I] =

[2 -3 0 | 1 0 0]

[0 0 7 | 0 1 0]

[3 2 0 | 0 0 1]

Performing row operations:

R3 - (3/2)R1 -> R3

R1 <-> R2

[1 0 0 | -3/2 1 0]

[0 1 0 | 0 1 0]

[0 0 7 | 0 0 1]

Since we can obtain the identity matrix on the left side, the vectors u1, u2, and u3 are linearly independent.

Therefore, the vectors u1 = (2, 0, 3), u2 = (-3, 0, 2), and u3 = (0, 7, 0) form an orthogonal basis for R^3.

(b) To write v = (1, 2, 3) as a linear combination of u1, u2, and u3, we need to find the coefficients x, y, and z such that:

v = xu1 + yu2 + z*u3

Substituting the given vectors and coefficients:

(1, 2, 3) = x(2, 0, 3) + y(-3, 0, 2) + z(0, 7, 0)

Simplifying the equation component-wise:

1 = 2x - 3y

2 = 7y

3 = 3x + 2y

From the second equation, we can solve for y:

y = 2/7

Substituting y into the first equation:

1 = 2x - 3(2/7)

1 = 2x - 6/7

7 = 14x - 6

14x = 13

x = 13/14

Substituting the found values of x and y into the third equation

3 = 3(13/14) + 2(2/7)

3 = 39/14 + 4/7

3 = 39/14 + 8/14

3 = 47/14

Therefore, we have determined the values of x, y, and z as follows:

x = 13/14

y = 2/7

z = 47/14

Thus, we can write the vector v = (1, 2, 3) as a linear combination of u1 = (2, 0, 3), u2 = (-3, 0, 2), and u3 = (0, 7, 0) as:

v = (13/14)u1 + (2/7)u2 + (47/14)u3

Therefore, v can be expressed as a linear combination of the given vectors.

Therefore, the linear combination of v = (13/14)u1 + (2/7)u2 + (47/14)u3  

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Answer:

D

Step-by-step explanation:

You are always able to do better, and Fiona needs to reflect

Answer:

D

Step-by-step explanation:

The equation's answer is x = 7.5. 4x - 1 2 = x + 7.

x = 1 is the answer to the problem 3x + 2 = (2x + 13) 3.

a) To solve the equation 4x - 1 ÷ 2 = x + 7, we need to isolate the variable x. Let's follow the steps:

1: Distribute the division operation to the terms inside the parentheses.

  (4x - 1) ÷ 2 = x + 7

2: Divide both sides of the equation by 2 to isolate (4x - 1) on the left side.

  (4x - 1) ÷ 2 = x + 7

  4x - 1 = 2(x + 7)

3: Distribute 2 to terms inside the parentheses.

  4x - 1 = 2x + 14

4: Subtract 2x from both sides of the equation to isolate the x term on one side.

  4x - 1 - 2x = 2x + 14 - 2x

  2x - 1 = 14

5: Add 1 to both sides of the equation to isolate the x term.

  2x - 1 + 1 = 14 + 1

  2x = 15

6: Divide both sides of the equation by 2 to solve for x.

  (2x) ÷ 2 = 15 ÷ 2

  x = 7.5

Therefore, x = 7.5 is the solution to the equation 4x - 1 ÷ 2 = x + 7. However, note that this answer is not an integer, so it may not be valid for certain contexts.

b) To solve the equation 3x + 2 = (2x + 13) ÷ 3, we can follow these steps:

1: Distribute the division operation to the terms inside the parentheses.

  3x + 2 = (2x + 13) ÷ 3

2: Multiply both sides of the equation by 3 to remove the division operation.

  3(3x + 2) = 3((2x + 13) ÷ 3)

  9x + 6 = 2x + 13

3: Subtract 2x from both sides of the equation to isolate the x term.

  9x + 6 - 2x = 2x + 13 - 2x

  7x + 6 = 13

4: Subtract 6 from both sides of the equation.

  7x + 6 - 6 = 13 - 6

  7x = 7

5: Divide both sides of the equation by 7 to solve for x.

  (7x) ÷ 7 = 7 ÷ 7

  x = 1

Hence, x = 1 is the solution to the equation 3x + 2 = (2x + 13) ÷ 3.

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Answer:

9

Step-by-step explanation:

6/2(1 + 2)

3(3)

9

Best of Luck!

Answer:

9

Step-by-step explanation:

Step 1:

6/2 ( 1 + 3 )      Equation

Step 2:

3 ( 1 + 2 )     Divide

Step 3:

3 ( 3 )      Add

Answer:

9    Multiply

Hope This Helps :)

To determine which unit(s) could be used for the unit of measurement, we need to consider the options: minutes, millimeters, centimeters, hours, and meters.
Length/distance: meter (m), centimeter (cm), inch (in), foot (ft), yard (yd), mile (mi)

Mass/weight: kilogram (kg), gram (g), pound (lb), ounce (oz)

Time: second (s), minute (min), hour (hr), day (d), week (wk), year (yr)

Temperature: Celsius (°C), Fahrenheit (°F), Kelvin (K)

Volume/capacity: liter (L), milliliter (mL), gallon (gal), fluid ounce (fl oz)

Energy: joule (J), calorie (cal), kilowatt-hour (kWh)

Force: newton (N), pound-force (lbf)

Pressure: pascal (Pa), atmosphere (atm), bar (bar), pound per square inch (psi)

There are many other units of measurement used to express various physical quantities. It's important to use the correct units of measurement when making calculations or communicating measurements to ensure accuracy and consistency. Therefore, the units that could be used for the unit of measurement are millimeters, centimeters, and meters.

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Answer: All real numbers :)

Answer: 32.6%

Step-by-step explanation:

percentage is whatever number you have x100 which would move the decimal point right 2 points and in this case would move the decimal from .326 to 32.6

We can solve this system by elimination method. We can take

and multiply by 2 the second equation:

and add both equations:

We can do something similar with 2nd and 3rd equations:

but now, we can multiply by -3 the first one:

by adding both equations, we have

we have removed y, then we have equation A and B with only x and z varaibles:

by multiplying the second equation by 7 and adding to the first, we have

Hence, we have that z=4. Now we can substitute tthis value into -x-4z=13 in order to find x:

Finally, we can substitute x=-3 and z=4 into the first original equation in order to find y:

Hence, the solution is x=-3, y=3 and z=4.