How can I screen shot my math problem in send it to here in get the answer

Answer:

40

Step-by-step explanation:

Using a system of equations, the quantity of Type A coffee that Trey's Coffee Shop blended with Type B coffee was 78 pounds.

A system of equations or simultaneous equations is two or more equations solved concurrently, simultaneously, or at the same time.

Unit Cost Per Pound:

Type A coffee = $5.80

Type B coffee = $4.25

The total quantity of pounds of the blend = 142 pounds

The total cost of 142 pounds = $724.40

Let the number of Type A coffee = x

Let the number of Type B coffee = y

x + y = 142 ... Equation 1

5.8x + 4.25y = 724.40 ... Equation 2

Multiply Equation 1 by 4.25:

4.25x + 4.25y = 603.5 ... Equation 3

Subtract Equation 3 from Equation 2:

5.8x + 4.25y = 724.40

-

4.25x + 4.25y = 603.5

1.55x = 120.9

x = 78

Substitute x = 78 in either equation:

x + y = 142

78 + y = 142

y = 64

Thus, 78 pounds of Type A coffee was used for the mixture.

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i^93 = i^92 x i

i^92 =(i^2)^46

Now you have i(i^2)^46

i^2 = -1

Now you have i(-1)^46

-1^46 = 1

Now you have 1i which = i

The answer is i

Answer:

x=3.00 or x= 8.00

Explanation:

Let us denote side of the cut-out square as x inches

Then base of box = 16-2x by 6-2x

The volume = V = (16-2x)(6-2x)

= 96-3x-12x+4x

dV/dx = 96-44x+4x^2

= 0 for a max V

divide by 4

X^2 -11x +24=0

Using quadratic formula to solve the equation

X= (11± √11^2-(4×1×24)/2

(11± √25)/2

x= 3 or 8inches

From the equation of volume = V = x(16-2x)(6-2x)

Substitute

let x = 3 , V = 3(16-6)(6-6) = 0

let x = 8 , V = 8(16-16)(6-16) = 0

Therefore, the maximum volume exist at both point x=3 or x= 8

Since the calculated F value of 31.47 is much greater than the critical value of 3.13, we reject the null hypothesis at the 0.05 level of significance. This means that there are statistically significant differences in prices between at least two of the three stores.

Hypotheses:

H₀: There are no systematic price differences between the stores

Hₐ: There are systematic price differences between the stores

The degrees of freedom for between-groups (stores) is

dfB = k - 1 = 3 - 1 = 2, where k is the number of groups (stores).

The degrees of freedom for within-groups (products within stores) is

dfW = N - k = 15 x 3 - 3 = 42, where N is the total number of observations.

Assume the significance level is 0.05.

The F-statistic is calculated as:

F = (SSB/dfB) / (SSW/dfW)

where SSB is the sum of squares between groups and SSW is the sum of squares within groups.

ANOVA table

Kindly find the table on the attached image

To determine whether to reject or fail to reject H0, compare the F-statistic (F) to the critical value from the F-distribution with dfB and dfW degrees of freedom, at the α significance level.

The critical value for F with dfB = 2 and dfW = 42 at 0.05 significance level is 3.13

Conclusion:

Since the calculated F value of 31.47 is much greater than the critical value of 3.13, we reject the null hypothesis at the 0.05 level of significance. This means that there are statistically significant differences in prices between at least two of the three stores.

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Question is incomplete, find the complete question below

You know that stores tend to charge different prices for similar or identical products, and you want to test whether or not these differences are, on average, statistically significantly different. You go online and collect data from 3 different stores, gathering information on 15 products at each store. You find that the average prices at each store are: Store 1 xbar = $27.82, Store 2 xbar = $38.96, and Store 3 xbar = $24.53. Based on the overall variability in the products and the variability within each store, you find the following values for the Sums of Squares: SST = 683.22, SSW = 441.19. Complete the ANOVA table and use the 4 step hypothesis testing procedure to see if there are systematic price differences between the stores.

Step 1: Tell me H0 and HA

Step 2: tell me dfB, dfW, alpha, F

Step 3: Provide a table

Step 4: Reject or fail to reject H0?

Answer:

20 = cost per mulch of cubic yards sold

Step-by-step explanation:

Given:

y = 20x

Where,

y = the total cost in dollars

x = the number of cubic yards of mulch

20 = cost per mulch of cubic yards sold

The only untrue statement is that the cost of topsoil and mulch is 20

Answer:

20

Step-by-step explanation:

Answer: (2, -2)

x=2, y=-2

Answer:

(2, -2)

Step-by-step explanation:

4x + y = 6

x - 2y = 6

x = 2y + 6

4(2y + 6) + y = 6

8y + 24 + y = 6

9y + 24 = 6

9y = 6 - 24

9y = -18

y = -18 ÷ 9

y = -2

4x + (-2) = 6

4x - 2 = 6

4x = 6 + 2

4x = 8

x = 8 ÷ 4

x = 2

Confirm:

4x + y = 6

4(2) - 2 = 6

8 - 2 = 6

6 = 6 (Correct)

(2, -2)

Answer:

yes

Step-by-step explanation:

I think ur right because ur smart :)

Answer:

yeah lol

Step-by-step explanation:

Answer:

Area of the rectangle: 24 cm²

Area of the circle: 380.13 cm²

Area of between the circle and the rectangle: 356.13 cm²

Step-by-step explanation:

Answer:

397.39

Step-by-step explanation:

4.

A slope is the steepness of the line, rise over run, change in y over change in x

A translation is a type of transformation that moves each point in a figure the same distance in the same direction (up, down, left right).

5. reflection on y-axis

6. vertical translation & horizontal translation

7. horizontal translation & vertical stretch

8. vertical translation & Horizontal stretch

9. vertical translation & horizontal translation & reflection over the x-axis & horizontal translation

10. vertical translation & horizontal stretch

HOPE THIS HELPS!

Answer:

All real numbers / (-∞, ∞) / R

Step-by-step explanation:

The equasion provided is a linear equasion meaning it can be written in the y=ax+b format, where both a and b are real numbers. All linear eqasions have a range of all real numbers, you can write this using the three solutions provided.

You can solve this two ways, number one would be to put this in a graphing calculator and number two would be reducing the equasion to the y=ax+b format.

look at image provided. The app is PhotoMath.

Write the equasion:

y = -2x - 6x + 1

Collect like terms:

y = -8x + 1

This now proves that the equasion is linear becuase you can write it in the y=ax+b format. a being -8 and b being 1.

Answer:

18%

Step-by-step explanation:

413-350=63%

(63/350)*100=18%

The profit percentage for the lawn owner is 15.8%

Profit Percentage:

Profit means, if the selling price of a product is more than its cost price, there is a profit earned in the transaction.

So, it can be calculated as,

Profit = Selling Price - Cost Price

The formulas for profit percentage is,

Profit percentage(P%) = (Profit /Cost Price) × 100

Given,

Here we need to find the profit percentage, If a lawnmower has a cost price of $2500 and was sold for $2895.

Based on the question,

We know that,

Cost Price = $2500

Selling Price = $2895

So, the profit is,

profit = $2895 - $2500

profit = $395

Now, the profit percentage is calculated by apply the values on the formula,

profit percentage (P%) = (395/2500) x 100

Therefore,

P% = 395/25

P% = 15.8%

Therefore, the profit percentage for the lawn owner is 15.8%.

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To express the integral e f(x, y, z) dv as an iterated integral in six different ways, where e is the solid bounded by the given surfaces, we need to determine the limits of integration for each variable. Let's assume that the solid e is bounded by the surfaces g1(x,y,z), g2(x,y,z), h1(x,y,z), and h2(x,y,z).

The first way to express the integral is by integrating with respect to x first, then y, then z:
∫∫∫e f(x, y, z) dv = ∫h1(z)h2(z) ∫g1(y,z)x ∫g2(y,z)x f(x,y,z) dx dy dz

The second way is by integrating with respect to y first, then x, then z:
∫∫∫e f(x, y, z) dv = ∫g1(x)g2(x) ∫h1(z)y ∫h2(z)y f(x,y,z) dy dx dz

The third way is by integrating with respect to z first, then x, then y:
∫∫∫e f(x, y, z) dv = ∫g1(x)g2(x) ∫h1(y)x ∫h2(y)x f(x,y,z) dz dx dy

The fourth way is by integrating with respect to x first, then z, then y:
∫∫∫e f(x, y, z) dv = ∫g1(y)g2(y) ∫h1(z)y ∫h2(z)y f(x,y,z) dx dz dy

The fifth way is by integrating with respect to y first, then z, then x:
∫∫∫e f(x, y, z) dv = ∫h1(x)h2(x) ∫g1(z)x ∫g2(z)x f(x,y,z) dy dz dx

The sixth way is by integrating with respect to z first, then y, then x:
∫∫∫e f(x, y, z) dv = ∫h1(x)h2(x) ∫g1(y)z ∫g2(y)z f(x,y,z) dz dy dx

In all six ways, the limits of integration are determined by the bounding surfaces of the solid e. By integrating iteratively with respect to each variable, we can find the volume of the solid e.
The solid E is bounded by the given surfaces.

Here are the six different ways to express the integral as an iterated integral:

1.

dx dy dz order:
∫∫∫_E f(x, y, z) dx dy dz

2.

dx dz dy order:
∫∫∫_E f(x, y, z) dx dz dy

3.

dy dx dz order:
∫∫∫_E f(x, y, z) dy dx dz

4.

dy dz dx order:
∫∫∫_E f(x, y, z) dy dz dx

5.

dz dx dy order:
∫∫∫_E f(x, y, z) dz dx dy

6.

dz dy dx order:
∫∫∫_E f(x, y, z) dz dy dx

Each of these six ways represents a different order of integrating the function f(x, y, z) over the solid E, which is bounded by the given surfaces. The choice of the order of integration depends on the specific problem and the boundaries of the solid E. When solving a problem, you should carefully analyze the given surfaces and choose the most suitable order of integration to make the calculations easier.

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Answer:

-1/22

Step-by-step explanation:

The probability of a car rolling over in a crash is approximately 0.016, or 1.6%, indicating that it is unlikely for a car to roll over in a crash.

We have,

To find the probability that a randomly selected passenger car crash results in a rollover, we divide the number of rollovers by the total number of crashes:

Probability of a rollover = Number of rollovers / Total number of crashes

Probability of a rollover = 83,600 / (83,600 + 5,127,400) ≈ 0.016

The probability of a rollover is approximately 0.016, or 1.6%.

Since the probability is relatively low, it can be considered unlikely for a car to roll over in a crash.

Thus,

The probability of a car rolling over in a crash is approximately 0.016, or 1.6%, indicating that it is unlikely for a car to roll over in a crash.

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The structure of an optically inactive fat that, when hydrolyzed, gives glycerol, one equivalent of lauric acid, and two equivalents of stearic acid is shown below.

We have,

To draw the structure of an optically inactive fat that, when hydrolyzed, gives glycerol, one equivalent of lauric acid, and two equivalents of stearic acid.

Here's the structure of an optically inactive fat that, when hydrolyzed, yields glycerol, one equivalent of lauric acid, and two equivalents of stearic acid:

       H              H         H

        |               |           |

H O - C - C - C - C - C - C - C - C - C - C - C - C - C - C - O H

        |               |          |

      H             OH       OH

In this structure, the fatty acids attached to the glycerol backbone are lauric acid (C₁₂:0) and stearic acid (C₁₈:0).

The hydrolysis of this fat will break the ester bonds between the glycerol and the fatty acids, resulting in the formation of glycerol, one molecule of lauric acid, and two molecules of stearic acid.

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Answer:

see explanation

Step-by-step explanation:

(a)

Expressed as the product of its prime factors

324 = 2² × \(3^{4}\)

(b)

\(\sqrt{324}\)

= \(\sqrt{2^2}\) × \(\sqrt{3^{4} }\)

= 2 × 3²

= 2 × 9

= 18

i. The wind power is calculated to be approximately 10.44 MW.

ii. The mechanical power that could be achieved by the wind turbine rotor is approximately 9.58 MW.

iii. The electrical power output of the wind turbine is approximately 8.77 MW.

To determine the wind power, we need to use the formula: P_wind = 0.5 * ρ * A * V^3, where ρ is the air density, A is the swept area of the turbine rotor, and V is the wind speed. Given the air flow rate and speed, we can calculate the wind power to be approximately 10.44 MW. The mechanical power that could be achieved by the wind turbine rotor is calculated by multiplying the wind power by the power coefficient, which is the maximum possible efficiency of the wind turbine according to the Lanchester-Betz limit. In this case, the mechanical power is approximately 9.58 MW. Finally, the electrical power output of the wind turbine is determined by considering the efficiencies of the gear, generator, and electric system. By multiplying the mechanical power by the product of these efficiencies, we can find the electrical power output, which is approximately 8.77 MW. Overall, based on the given data and the mentioned efficiencies, the wind power is converted into mechanical power by the rotor and further into electrical power by the generator and other components of the wind turbine system.

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The 683.67 kilowatt-hour was charged while 1640 kilowatt-hour generated the credit by not being used.

The amount of electricity consumed will be calculated by the formula -

Amount of electricity consumed = total charged amount ÷ amount of unit electricity consumed

The amount of electricity that earned the credit will be calculated by the formula -

Amount of electricity that earned the credit = total reduction amount ÷ credit on unit electricity

Keep the values in formula

Amount of electricity consumed = 82.04/0.12

Performing division on Right Hand Side of the equation

Amount of electricity consumed = 683.67

Amount of electricity that earned the credit = 4.10/0.0025

Performing division on Right Hand Side of the equation

Amount of electricity that earned the credit = 1640

Thus, the amount of electricity consumed is 683.67 units and unused electricity is 1640 units.

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The proof shows that if the premises (x > 1), a = 1, y = x, y = y – a, (y >\(0 ^ x\) > y) are true, then the conclusion (x > 1) a = 1; y = x; y = y – a; (y > \(0 ^ x\) > y) is also true. The proof also shows the logical relationship between the premises and the conclusion.

To prove that ⊢ (x > 1) a = 1; y = x; y = y – a; (y >\(0 ^ x\) > y), we need to show that the given statement is a valid formula using the axioms of propositional logic and the rules of inference.

Firstly, let's understand the given statement.

(x > 1) a = 1;

y = x;

y = y – a;

(y > 0 ^ x > y)

Here,
(x > 1) is a premise which states that x is greater than 1.
a = 1 is a statement that sets the value of a as 1.
y = x sets the value of y as x.
y = y – a subtracts the value of a from y and updates the value of y.
(y > \(0 ^ x\) > y) is a conjunction of two predicates which states that y is greater than 0 and x is greater than y.

Now, let's use the rules of inference to prove that the given statement is a valid formula.

Proof:
1. (x > 1) (Premise)
2. a = 1 (Premise)
3. y = x (Premise)
4. y = y - a (Premise)
5. y > 0 (Premise)
6. x > y (Premise)
7. y - a > 0 (Subtraction, 5, 2)
8. x > y - a (Substitution, 6, 2, 4)
9. y > a (Subtraction, 3, 2)
10. y > \(0 ^ y\) > a (Conjunction, 5, 9)
11. y > \(0 ^ y\) - a > 0 (Conjunction, 7, 9)
12. y > \(0 ^ x\) > y (Conjunction, 8, 10)
13. (x > 1)

a = 1;

y = x;

y = y – a;

(y > 0 ^ x > y)

Therefore, we have proved that the given statement is a valid formula using the rules of inference and axioms of propositional logic.

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Step-by-step explanation:

3x -1 +2x + 4 x +1 = 180

9x = 180

X= 20

<ABC = 59

< CB D = 40

< DBE = 81

Answer:

Step-by-step explanation:

Hypotenus=6

Adjacent=4

H and A

Cos x degrees=  A divided by H

4 divided by 6=0.666666666

cos inverse(0.6666666666666666)

=48.2

=48

The name given to this type of design is a factorial design. A factorial design is a design in which researchers investigate the effects of two or more independent variables on a dependent variable.

In this study, two independent variables were used: room color (yellow, blue) and room temperature (20, 24, 28 degrees Celsius), while the dependent variable was happiness.

Each level of each independent variable was tested in conjunction with each level of the other independent variable. There are a total of six experimental conditions (two colors × three temperatures = six conditions), and twenty students were randomly assigned to each of the six conditions.

The researcher then examined how each independent variable and how the interaction of the two independent variables affected the dependent variable (happiness). Therefore, this study is an example of a 2 x 3 factorial design.

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Solution:

If we graph the following lines, on the same plane

Y= x+4

Y= - 2x-2

we obtain:

According to the above image, we can see that both lines intersect at the point (x, y) = (-2, 2)

So that, we can conclude that the solution of the given system of linear equation is:

(x, y) = (-2,2)

Answer: 9/2

Step-by-step explanation:

Answer:

9:2

Step-by-step explanation:

Find the HCF of the numerator and denominator which is 6.

Divide the numerator and denominator by the HCF (54÷6)÷(12÷6)

The answer will be 9÷2 which is also 9:2

Answer: 3

Step-by-step explanation:

The required polar form of the equation is \(Z = 5/2cos30 - 5/2sin30i.\)

For the complex number z = (5sqrt(3))/4 - 5/4 * i the polar form is to be determined.

The number that constitutes real and imaginary numbers are called complex numbers. The standard form of complex number = a + bi

\(z = 5\sqrt{3}/4 - 5/4i\)
the polar form complex numbner  can be given as
\(z = rcos\theta +rsin\theta i\)   - - - - - -(1)
where r = \(\sqrt{a^2+b^2}\)
and \(\theta=tan^-\frac{b}{a}\)

Since a = 5√3/4 and b = -5/4
\(r = \sqrt{(5\sqrt{3}/4)^2+(5/4)^2}\)
r = 10/4
r = 5/2
Now,
\(\theta=tan^-\frac{b}{a}\)
\(\theta=tan^-\frac{-5/4}{5\sqrt{3}/4 }\\\theta=tan^-\frac{1}{\sqrt{3} }\\\theta=tan^-(-tan30)\\\theta=-30\)

Now the polar form is given by substituting the values of r and \(\theta\) in equation 1
Here,
\(z = 5/2cos30 +5/2sin(-30)i\\z = 5/2cos30-5/2sin30 i\)

Thus, the required polar form of the equation is \(Z = 5/2cos30 - 5/2sin30i.\)

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The Riemann sum for the given function f(x) = √√x over the interval is written as √5.0.5 + √5.5.0.5 + √6.0.5 + √6.5.0.5. Using sigma notation, it can be written as Σ(√i + 0.5) from i = 5 to 6 with a step size of 0.5.

To find the sum of the areas of the rectangles approximating the area under the function f(x) = √√x over the given interval, we evaluate the function at specific x-values and multiply it by the width of each rectangle. In this case, the width of each rectangle is 0.5.

The sum of the areas of the rectangles can be expressed as √5.0.5 + √5.5.0.5 + √6.0.5 + √6.5.0.5. This means we evaluate the function at x = 5, x = 5.5, x = 6, and x = 6.5, and multiply each value by 0.5.

Using sigma notation, we can express the Riemann sum as Σ(√i + 0.5) from i = 5 to 6 with a step size of 0.5. This means we sum up the values of (√i + 0.5) as i varies from 5 to 6, incrementing by 0.5 at each step.

Both notations represent the same concept of summing up the areas of the rectangles, with the second notation providing a more concise and general representation using sigma notation.

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The total number of bushels the farmer has for sale at the farmers market is 9.75 bushels.

The given parameters;

The actual amount of the bushel sold in per day;

\(= \frac{15.75}{1 \ day}\)

After 7 days the amount of the bushel sold is calculated as;

\(= \frac{15.75}{1 \ day} \times 7\ days= 110.25 \ bushels\)

The amount of the bushel left after the 7 days;

\(= 120 - 110.25\\\\= 9.75 \ bushels\)

Thus, the total number of bushels the farmer has for sale at the farmers market is 9.75 bushels.

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The graph of \(f(x) = -4sin(x)\) will be a sinusoidal curve passing through these two points

To graph the function \(f(x) = -4sin(x)\), we can start by plotting two points.

The midline of the sine function is the x-axis, so the first point should be on the x-axis, closest to the origin.

At this point, the value of sin(x) is 0.

Since we have a negative coefficient of -4, the y-value at this point will also be 0.

First point: (0, 0)

The second point should be a maximum or minimum value on the graph, closest to the first point.

Since the coefficient of sin(x) is -4, the amplitude of the graph is 4.

Therefore, the maximum and minimum values of the graph will be 4 and -4, respectively.

To find the maximum value, we can set

\(sin(x) = 1\) (maximum value of sin(x)) and solve for x.

Using the inverse sine function\((sin^{(-1)})\), we find \(x=\frac{\pi }{2}\).

Second point: \((\frac{\pi }{2}, -4 )\)

Now, let's plot these two points on a graph:

      |

      |       *

      |  

      |  

      |  

_______|_____________________

      |      |      |

      0   π/2   π     ...

The graph of \(f(x) = -4sin(x)\) will be a sinusoidal curve passing through these two points.

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