A room is 15 by 20 feet with a 9 foot celling. How much would it cost to paint all the walls if a gallon of paint cost $23.45 and covers about 250 square feet?

Answer:

1) B

2) B

Step-by-step explanation:

1) funtion 1 slope is 4

function 2 we use y2-y1/x2-x1

10-6/3-1

4/2

2 is the slope of function 2

so function 1 is bigger

1) only b is correct because it lands on the same line of y=x

hopes this helps please mark brainliest

Answer:

1 kg = 1000 grams

15,000 grams = 15kg

Step-by-step explanation:

180-163= 17

163+17=180

x and z = 17

y=163

Using translation concepts, it is found that the variable h shifts the function horizontally while the variable k shifts the function vertically.

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

The cube root function is given by:

\(y = \sqrt[3]{x}\)

The translated function is given by:

\(y = \sqrt[3]{x - h} + k\).

The variables work as follows:

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Explanation

We are required to evaluate cos 120° without using a calculator.

This is achieved thus:

We know that 120° lies in the second quadrant.

We also know that cosine is negative in the second quadrant.

Therefore, we have:

Hence, the answer is:

Option B is correct.

The value of the trigonometric ratio  \(cos 120^0\) without using a calculator is \(\dfrac{-1}{2}\), So the option \(B\) is correct.

The trigonometric ratio \(cos \theta\) is a periodic function and a continuous function that lies from \((-1 \ to +1 )\). In a right-angle triangle, it can be expressed as the ratio of base and hypotenuse.

The trigonometric function \(cos \ 120 ^0\)  lies in the second quadrant where all trigonometric functions are negative except \(sin\) function.

It can be calculated as :

\(Cos (180 ^0 - \ \theta ) = Cos \ \theta \\Cos ( 180 ^0 - 120^0) = Cos 60 ^0\\\)

Since  \(Cos \theta\)  is negative in the second quadrant, so

\(- Cos 60 ^0 = \dfrac {-1}{2}\)

Hence, \(Cos 120^0\)  is equal to\(\dfrac{-1}{2}\).

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Answer:

negative relationship.

Step-by-step explanation:

An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).

This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.

Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).

A negative relationship or correlation can be defined as the relationship between two variables in which there exist an inverse relationship between them i.e as one variable increases, the other decreases and vice-versa.

In this scenario, you are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this observation, you conclude that there is a negative relationship between the temperature and hot beverage sales at this coffee shop because for the temperature to get colder it would decrease and for the hot beverages to be hot, its temperature must be increased.

The requried, 20 youths use both iPhone and Samsung, and 200 youths use neither iPhone nor Samsung.

Let A be the set of youths using only iPhones, B be the set of youths using only Samsung, and C be the set of youths using both. Then, we have:

|A| = 150

|B| = 770

|A ∪ B| = 900

We want to find |C| and |A ∩ B| (which is the number of youths using both).

Using the inclusion-exclusion principle, we have:

|A ∪ B| = |A| + |B| - |A ∩ B|

900 = 150 + 770 - |A ∩ B|

|A ∩ B| = 20

So, 20 youths use both iPhone and Samsung.

To find the number of youths who use neither, we can use the fact that:

|A ∪ B ∪ C| = 1100

|A ∪ B ∪ C| = |A| + |B| + |C| - |A ∩ B| - |A ∩ C| - |B ∩ C| + |A ∩ B ∩ C|

Plugging in the values we know, we get:

1100 = 150 + 770 + |C| - 20 - |A ∩ C| - |B ∩ C| + |A ∩ B ∩ C|

|C| - |A ∩ C| - |B ∩ C| + |A ∩ B ∩ C| = 200

Since the number of youths using both is 20, we have:

|A ∩ C| = |B ∩ C| = |A ∩ B ∩ C| = 0

So, we can simplify the equation to:

|C| = 200

Therefore, 200 youths use neither iPhone nor Samsung.

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To find the combined rate of all the individuals working together, you must add the individual rates.

When calculating the combined rate of individuals working together, you need to add up the individual rates. Each worker contributes their own rate of work or productivity, and by adding these rates together, you can determine the combined rate at which they are working collectively.

This allows you to assess the overall efficiency and output of the team or group. By summing up the individual rates, we have better understanding of the overall productivity and performance of the group.

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The conic section of the equation 4x² + 9x +4y² - 36y - 125 = 0 is a circle

The given equation is

4x² + 9xy + 4y² - 36y - 125 =0

The above equation is an illustration of a circle equation

The standard form of a circle equation is

(x - a)² + (y - b)² = r²

Where

(a, b) is the center

r is the radius

While the general form of the equation is

ax² + fx + by² + gy + c =0

Where c is a constant

Recall that, we have

4x² + 9x + 4y² - 36y - 125 =0

This is the general form

We can convert to the standard form as follows

Divide through by 4

x² + 2.25x + y² - 9y - 31.25 =0

Next, we complete the square of the x-terms and the y-terms

For the x-terms, we have

x² + 2.25x = x² + 2.25x + (2.25/2)² - (2.25/2)²

x² + 2.25x = (x + 2.25/2)² - (2.25/2)²

For the y-terms, we have

y² - 9y = y² - 9y + (9/2)² - (9/2)²

y² - 9y = (y - 9/2)² - (9/2)²

Substitute the new x and y terms

So, x² + 2.25x + y² - 9y - 31.25 = 0 becomes

(x + 2.25/2)² - (2.25/2)² + (y - 9/2)² - (9/2)²- 31.25 =0

Evaluate the sum of like terms

(x + 2.25/2)² + (y - 9/2)² - 3377/64 = 0

So, we have

(x + 9/8)² + (y - 9/2)² = 3377/64

Using the above as a guide, we can conclude that the conic section of the equation is a circle

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Answer:

f(g(-1)) = -8

Step-by-step explanation:

⭐ The two equations we are given are:

This problem is an example of composite functions.

⭐What are composite functions?

First, we have to compute the value for the 2nd function you see. The 2nd function is inside f(x), and it is g(-1).

Essentially, we have to find the corresponding y-value for when x = -1 in g(x)

\(g(-1) = 2(-1) + 5\)

\(g(-1) = 3\)

Next, take this value and substitute it as the x-value for f(x).

\(f(3) = 1-x^2\)

Now we have to find the y-value for f(x) for when x = 3.

\(f(3) = 1 -3^2\)

⚠️⚠️⚠️!!! CAUTION !!! ⚠️⚠️⚠️

Some people may make the mistake of computing f(3) like this:

\(f(3) = 1 - 3^2\)

\(f(3) = 1+9\\f(3) = 10\)

This is wrong because only 3 is being squared, not -3. Make sure to read the equations you are given carefully to avoid mistakes like this.

\(f(3) = 1-3^2\\f(3) = 1-9\\f(3) = -8\)

∴ f(g(-1)) = -8

Answer:

TWO CRACKERS

Step-by-step explanation:

I'm assuming they want to find x. Here we see that these two are similar triangles, so the sides are reflective. 5x/5 should be equal to 4/x, so 5x/5 = 4/x. If we use cross multiplying we get 5x^2 = 20. divide both sides by 5 and we get x^2 = 4 or x = 2.

Hope this helped

Answer:

3 flowers 6 twigs

Step-by-step explanation:

set flowers to x and twigs to y

15 = 3x + y subtract 3x both sides to get y

9 = x+y sub 15-3x in for y 9= x + 15-3x simplify to 2x =6 so x =3 put that in for x in 9=x+y 9= 3+ y so y =6

The inverse of the function f(x) = x + 4 is given as f⁻¹(x) = x - 4

An inverse function or an anti function is defined as a function, which can reverse into another function. In simple words, if any function “f” takes x to y then, the inverse of “f” will take y to x. If the function is denoted by ‘f’ or ‘F’, then the inverse function is denoted by f-1 or F-1.

In this problem, the function given is f(x) = x + 4;

We can find the inverse of the function as;

y = x + 4;

Let's switch the variables by replacing x as y and y as x;

x = y + 4

Solving for y;

y = x - 4

f⁻¹(x) = x - 4

The graph of the function is attached below

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If Point A is located at (1, 2) and Point B is located at (4, 6), the length of the line between points A and B is 5 units.

To determine the length of the line between points A and B, we can use the distance formula, which is a formula used to calculate the distance between two points in a coordinate plane. The distance formula is:

d = √((x₂ - x₁)² + (y₂ - y₁)²)

where (x₁, y₁) and (x₂, y₂) are the coordinates of the two points and d is the distance between them.

Using the coordinates of points A and B, we can substitute their values into the distance formula to find the length of the line between them:

d = √((4 - 1)² + (6 - 2)²)

d = √(3² + 4²)

d = √(9 + 16)

d = √25

d = 5

Rounded to the nearest whole number, the length of the line is also 5 units.

In conclusion, we can use the distance formula to find the length of the line between two points in a coordinate plane. The distance formula uses the coordinates of the two points to calculate the distance between them. The resulting distance can be rounded to the nearest whole number, if needed.

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Answer:

No solution

Step-by-step explanation:

To start, a solution requires the lines to intersect

However both lines share a slope of -3 and are thus parallel

Since parallel lines dont intersect, there is no solution

Answer:

Hi! The answer to your question is A. No solution, i also have a picture to help you if u need it.  

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

Answer:

The slope is -1

Answer: -1

Step-by-step explanation:

slope = Δy / Δx = (-3-(-2)) / (3-2) = -1/1 = -1

Negative slope means line goes down

the 2 points to use are (2, -2) and (3, -3)

Answer: The answer is D

g-1(x)= -2(x-3)

Step-by-step explanation:

The inverse of a function is its opposite

The inverse of the function g(x) is \(g^{-1}(x)= -2(x-3)\)

The function is given as;

\(g(x) = -0.5x + 3\)

Rewrite as:

\(y = -0.5x + 3\)

Swap the x and y variables

\(x = -0.5y + 3\)

Subtract 3 from both sides

\(-0.5y = x -3\)

Multiply both sides by -2

\(y= -2(x-3)\)

Rewrite as:

\(g^{-1}(x)= -2(x-3)\)

Hence, the inverse of the function g(x) is \(g^{-1}(x)= -2(x-3)\)

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Let, money in loan with 12% interest is x.

So, money in loan with 10% interest is 15000-x.

Now , sum of interest :

\(\dfrac{12x}{100}+\dfrac{10(15000-x)}{100}=1600\\\\12x+150000-10x=160000\\\\2x=10000\\\\x=5000\)

Therefore, money on 12% interest is $5000 and 10% interest is $10000.

Hence, this is the required solution.

Answer:

7/8 = 0.875 = 87.5%

Step-by-step explanation:

7/8 = 0.875 = 87.5%

Any three lengths that satisfy the triangle inequality theorem can form the sides of a triangle. The theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

In order for three lengths to form a triangle, they must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Let's consider three lengths: a, b, and c.

To determine if they can form a triangle, we need to check the following conditions:

a + b > c

a + c > b

b + c > a

If all three conditions are true, then the lengths a, b, and c can form a triangle.

For example, let's consider the lengths 3, 4, and 5.

3 + 4 > 5 (True)

3 + 5 > 4 (True)

4 + 5 > 3 (True)

Since all three conditions are true, the lengths 3, 4, and 5 can form a triangle.

Therefore, any three lengths that satisfy the triangle inequality theorem can be the lengths of the sides of a triangle.

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On solving the provided question, we can say that - the range \(|x + 1| = 0\) \(x + 1 = 0 = > x = -1\) and \(y = 3\)

Finding the variable's greatest observed value (maximum) and deducting the least observed value will yield the range (minimum). Limits of variation or potential range: a variety of steel costs; several styles; The size or scope of an action or operation: insight. how far a weapon's projectile can or will travel. The number in a list or set between the lowest and maximum is referred to as a range. Line up all the numbers before locating the region. After that, take away (get rid of) the lowest number from the greatest number. The solution provides the list's range.

The regions where the absolute values are zero are known as the vertex points of an absolute value function.

\(|x + 1| = 0\\x + 1 = 0\\x = -1\)

\(y = |-1 + 1| + 3\\y= 0 + 3\\y = 3\)

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18°

Mark as brainlist......

Answer:

18 degrees.

Step-by-step explanation:

....you welcome

Answer:

3.6 in³

This should be the correct answer, good luck!

First, add 7 to both sides of the equation so it would be;

2−7=−5+14

2−7 + 7=−5+14+7

To simplify this it would be:

2=−5+21

Add 5 to both sides, it would look like this:

2=−5+212+5=−5+21+5

To simplify it would be;

7=21

Divide both sides of equation with once again, the same number

7=21  77=217

Simplify it;

=3

Therefore your answer is;

=3

The solution of the equations 6x = 52 − 2y and 5x + 7y = 70 by elimination method will be (7, 5).

In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.

The equations are given below.

6x = 52 - 2y

6x + 2y = 52

3x + y = 26                   ...1

5x + 7y = 70

(5/7)x + y = 10              ...2

Subtraction equation 2 from equation 1, then we have

3x - (5/7)x = 26 - 10

(16/7)x = 16

x = 7

Then the value of 'y' is given as,

3(7) + y = 26

21 + y = 26

y = 5

The solution of the equations 6x = 52 − 2y and 5x + 7y = 70 by elimination method will be (7, 5).

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Answer:

A

Step-by-step explanation:

Hope it helps

Answer:The awnser is

B

Step-by-step explanation:

because rodney sold half her copies

In this problem, we have the parent function f(x) = sec(x).

This function is transformed in the following way:

(1) Applying this transformation to the parent function f(x), we get:

(2) Plotting this function in the interval -4π ≤ x ≤ 4π, we get the following graph: