Lena uses 2 cups of flour for a batch of cookies, 2 1/2 cups for loaf of bread, and 1/2 cups for dusting her workbench. Let c be the number of cookie batches and b be the number of bread loaves Lena makes. Which of the following expressions could represent how much flour she uses?

Answer: The property being demonstrated for each expression is the commutative property of addition.

Step-by-step explanation:

Answer:

1.associative property, 2.commutative property, 3.identity property.

Step-by-step explanation: i got it right on edge

Answer:

35/1000

Step-by-step explanation:

the 5 is in the thousandths place therefore it is over 1000

Answer:

you would make it a 7 for the top and 200 for the bottom

Step-by-step explanation:

Regression Equation y is 379.9996 ⋅1.04^x . Regression analysis is a set of statistical processes used in statistical modelling to estimate the relationships between a dependent variable and one or more independent variables.

Regression analysis is a set of statistical processes used in statistical modelling to estimate the relationships between a dependent variable and one or more independent variables.

Linear regression is the most common type of regression analysis, in which the line that best fits the data according to a specific mathematical criterion is found. The ordinary least squares method, for example, computes the unique line that minimises the sum of squared differences between the true data and that line.

This allows the researcher to estimate the conditional expectation of the dependent variable when the independent variables take on a given set of values for specific mathematical reasons. Less common types of regression employ slightly different procedures to estimate alternative location parameters or the conditional expectation across a larger set of non-linear models.

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y = 3/4x + 5 equations best fits the data as a line of fit.

Given that,

With a point at - 5 comma negative 1, a point at - 2 comma negative 4, a point at 1 comma 9, a point at 3 comma 5, and a point at 4 comma negative 7, a scatter plot is created.

We have to find which of the following equations best fits the data as a line of fit.

We know,

A scatter plot is a particular kind of graph that is used to visually display the values of two variables, with the resulting points indicating any associations (correlations) between the data set.

We can rationally conclude that an equation for the line of best fit (trend line) is given by y = 0.80x + 4.63 by carefully examining the graph that represents the provided data.

We can conclude that y = 3/4x + 5 is the equation that best fits the data as a line of fit.

Therefore,  y = 3/4x + 5 equations best fits the data as a line of fit.

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Elizabeth's speed increased during the 0 to 5 minute interval

This interval shown on the graph is indicated by the rising line on the vertical axis (y-axis).

The x-axis shows the time intervals graded in 5-minute intervals. the other options shows a flat line (no change in speed) and a downward line (reduction in speed).

The 0 to 5 minute period of her run however is a rising line which means incresing speed.

By using linear equation, it is obtained that 218 minutes of phone call cost $100

What is linear equation?

At first it is important to know about equation

Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.

A one degree equation is known as linear equation.

Here linear equation is used

A long-distance telephone call from Center City to Smithville costs $3.25 for the first 3 minutes and $0.45 for each additional minute

Let the total time for the telephone call be t minutes

So total cost for t minutes telephone talk = $(3.25 + 0.45(t - 3))

By the problem,

3.25 + 0.45(t - 3) = 100

3.25 + 0.45 t - 1.35 = 100

1.9 + 0.45 t = 100

0.45 t = 100 - 1.9

0.45 t = 98.1

t = 218 minutes

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Answer:

312

Step-by-step explanation:

42 43 312

♥ The given parameters are:

x = -2, y = 3 and z = -1/5

The expression is given as xyz

To evaluate the expression when x = -2, y = 3 and z = -1/5, we substitute x = -2, y = 3 and z = -1/5 in expression xyz

This is represented as xyz = -2 * 3 * -1/5

Evaluate the product in the above expression

So, we have xyz = 6/5

Hence, the value of the expression when x = -2, y = 3 and z = -1/5  is 6/5  ♥

Original expresion

Let's use the following relationship to determine the answer

Now in the original expression

The answer would be A = 6

The two given algebraic expressions x²-1/2+8x-x²-6x and 2x²-2x are not equivalent as on simplification the first expression is linear but the second expression is quadratic.

the first expression is :

x²-1/2+8x-x²-6x

now we simplify by grouping all the like terms

or, x² - x² + 8x - 6x - 1/2

or, 2x - 1/2 (this is linear as the highest power of the variable x is 1)

Now the second expression is :

2x²-2x (this is quadratic as the highest power of the variable x is 2)

Hence these two expressions are not equivalent.

In mathematics, statements comprising variables, numbers, or both, and at least two terms connected by an operator are referred to as expressions.

Numerical expressions, which just contain numbers, and algebraic expressions, which also contain variables, are the two types of expressions used in mathematics.

A variable is a symbol having an unknowable value. One constant, one variable, or a combination of variables and constants multiplied or divided can all be used to create a term. A coefficient in an equation is a number that has been further multiplied by a variable.

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Answer:

b

Step-by-step explanation:

The cost of making the smaller circle a rational number.

A number is rational if it has a terminating or repeating decimal; for example, 1/2 = 0.5. It is irrational if a number has a non-terminating and non-repeating decimal.

A rational number is one that can be written as P/Q, where P and Q are integers and Q = 0. However, an irrational number cannot be written in simple fractions. A rational number is 2/3, whereas an irrational number is ✓2.

It should be noted that in this situation, the cost of making the larger circle can be 4.0. The cost of making the small one will be:

= 3/4 × $4.0

= $3.0

This illustrates a rational number.

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The function f(x)=(x-7.2)(x+7) is already in its factored form

From the question, we have the following equation that can be used in our computation:

f(x) = (x - 7.2)(x + 7)

When an equation has the form of

f(x) = (x - a)(x - b).....(x -n),

Then, the equation is already in its factored form

This means that the equation can not be further simplified, as the current form is its factored form

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We are asked to determine the equation of a line with a slope 1/3. The general form of a line equation is:

Where "m" is the slope and "b" the y-intercept.

Now, we substitute the value of the slope:

Now, to determine the value of "b" we will use the fact that the line passes through the point (x, y) = (

6, 8). Now, we plug in these values in the equation:

Solving the product on the right side we get:

Now, we subtract 2 from both sides:

Now, we substitute the value in the equation of the line:

And thus we get the equation of the line.

Step-by-step explanation:

I hope this is helpful for u

The value of w in the given equation is 57°

When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles. A pair of vertically opposite angles are always equal to each other. Also, a vertical angle and its adjacent angle are supplementary angles, i.e., they add up to 180 degrees.

From the diagram the to lines intersect so the angle w and the angle 57 are facing each other, in geometry we say that vertical angles facing each other are equal.

Therefore, W = 57°( vertically opposite angles)

In conclusion the value of W in the diagram is 57°

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Answer:

Expressions: Student 1 and 4

Equations: Student 2 and 3

Step-by-step explanation:

Equations have an = sign. Expressions do not.

Answer:

$4.05

Step-by-step explanation:

8.64÷3.2=2.7

1.5×2.7=4.05

(not very sure)

Explanation:

Using expontia

Answer:

9

Step-by-step explanation:

Casey = 18

Casey = 2 x James

Because both values for Casey are equal to Casey, they are also the same value

This can then be written as

18 = 2 x James

isolate James by himself by dividing both sides by 2 to get how many footprints James found

18 / 2 = 9

James = 9

Answer:

F or Jayne’s finds 36 Footprints

Answer

y = ½x + 5

If y is the total amount Juanita makes for x inches of finished lanyard,

Base fee = y-intercept = 5

Cost per inch = Slope = 0.5 = ½

Explanation

To write the expression for this, we need to write the equation for the line representing the whole function

The slope and y-intercept form of the equation of a straight line is given as

y = mx + b

where

y = y-coordinate of a point on the line.

m = slope of the line.

x = x-coordinate of the point on the line whose y-coordinate is y.

b = y-intercept of the line.

From the gaph, we can easily see that

b = y-intercept = point where the line crosses the y-axis = 5

For the slope, for a straight line, the slope of the line can be obtained when the coordinates of two points on the line are known. If the coordinates are (x₁, y₁) and (x₂, y₂), the slope is given as

For this question,

(x₁, y₁) and (x₂, y₂) are (2, 6) and (6, 8)

Recall,

y = mx + b

m = slope = 0.5 = ½

b = y-intercept = 5

y = ½x + 5

If y is the total amount Juanita makes for x inches of finished lanyard,

Base fee = y-intercept = 5

Cost per inch = Slope = 0.5 = ½

Hope this Helps!!!

When he made $1000 for the week, his 15% commission is;

It is known that he too $450 home for the week, then;

His new flat rate salary is $450 - $150 = $300

⇒They simply want you to make F the subject for the equation, since there are multiple variables in one equation we cannot solve for the exact values

[tex]c=\frac{(5f-32)}{9} \\c(9)=5f-32\\9c=5f-32\\5f-32=9c\\5f=9c+32\\\frac{5f}{5} =\frac{9c+32}{5} \\f=\frac{9c+32}{5}[/tex]

213.52  feet per minute is linear speed of the wheel in feet per minute of circumference of circle .

What is circumference?

The circumference of the wheel is 2*pi*radius = 2*3.14*26 = 37.7 inches.  

                          d= 28 inches

                          r = 28/2 = 17 inches

  1 rev = 2π radian

 2 rev = 2 * 2π  = 4π

      π = 3.14

angular speed= 4 * 3.14 = 12.56

speed  v = rw

            v = 17 * 12.56

           v = 213.52  feet per minute

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Range of the function f(x) = 3x² +18x is [-27,∞).

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.

Here, we have f(x) = 3x² +18x.

Let f(x) = y

⇒ y = 3x² +18x

⇒ y = 3(x²+6x)

⇒ y/3 = x²+6x

⇒ y/3 = x²+ 6x + 9 - 9

⇒ y/3 = (x+3)² - 9

⇒ y/3 + 9 = (x+3)²

⇒ (y+27)/3 = (x+3)²

Taking square root on both sides, we get

⇒ [tex]\sqrt{(y+27)/3}[/tex] = x+ 3

⇒ [tex]\sqrt{(y+27)/3} - 3[/tex]  = x

Now since f(x) = y ⇒ x = f⁻¹(y)

⇒ f⁻¹(y) = [tex]\sqrt{(y+27)/3} - 3[/tex]

⇒ range = [-27,∞).

Therefore, range of the function f(x) = 3x² +18x was found to be [-27,∞).

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curve: Y=x^3

The equation of the tangent line is:

y =

The percent discount of the item in the grocery store if the item is priced at $27, before discount and tax and $25.38 after discount and before tax is 6%.

Percent discount = (Price of item before discount and tax - Price of item after discount before tax ) / Price of item before discount and tax × 100

= (27 - 25.38) / 27 × 100

= 1.62 / 27 × 100

= 0.06 × 100

= 6%

In conclusion, the percent discount of the item is given as 6%

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Function:

A function is a relation in which each input (x) has only one output (y).

If any one input (x) has more than one output (y) then it is not a function.

As you can see from the given table, the value of (a) must be anything other than (2)

So we can set a value of 4 for (a)

Now if you notice, each input will have exactly one output value so the criteria of a function is satisfied.

So, the answer is 4

Answer: 0=0

Step-by-step explanation: After simplifying the equation we get 0=0, and 0=0 has infinitely many solutions.

Answer:

it has many solutions :)