Please I need help.
Find the measure of the angle DMC for the rhombus ABCD.

Answer:

a. x=9

b. PR = 59

Step-by-step explanation:

a. 11x-40 = 6x+5

11x-6x=5+40

5x=45

x=9

b. PR = 11(9) -40

= 99-40

= 59

Answer:

54

Step-by-step explanation:

6 pennies per pile x 9 piles = 54 pennies

Answer:

54 pennies

Step-by-step explanation:

6 pennies = 1 pile

6 x 9 = 54

The temperature in the city with an elevation of -9m is 7°C.

Temperature is a definitive quantification of the amount of heat or chill precipitating from an item or environment, typically available in Celsius (°C) or Fahrenheit (°F) degrees and on the Kelvin (K) scale.

This absolute temperature scope starts at zero, translating to -273.15°C or -459.67°F when representing all sources of thermal energy's absence. Besides affecting appearance or state of an object, environmental temperatures can also modify physical traits.

Based on the graph, the temperature in the city with an elevation of -9m is 7°C.

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The standard equation of a straight line is given by y = mx + b, where m is the slope (rate of change) and b is the y intercept of the line.

An equation is an expression that shows the relationship between two or more numbers and variables.

The standard equation of a straight line is given as:

y = mx + b

Where m is the slope (rate of change) and b is the y intercept of the line.

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Answer:

B, D and E

Answer:

33

Step-by-step explanation:

−16−35+18+x=0

-51+18+x=0

-33+x=0

x=33

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The radius of the silo which is in the shape of cylinders and spheres  , correct to the nearest tenth of a foot, is approximately 10.3 feet.

To find the radius of the silo, we need to determine the radius of the cylindrical section.

The volume of the cylindrical section can be calculated using the formula:

\(V_{cylinder} = \pi * r^2 * h\)

where \(V_{cylinder}\) is the volume of the cylindrical section, r is the radius of the cylindrical section, and h is the height of the cylindrical section.

Given that the cylindrical section is 30 ft tall, we can rewrite the formula as:

\(V_{cylinder} = \pi * r^2 * 30\)

To find the radius, we can rearrange the formula:

\(r^2 = V_{cylinder} / (\pi * 30)\)

Now, we can substitute the total volume of the silo, which is 10,000 cubic feet, and solve for the radius:

\(r^2 = 10,000 / (\pi * 30)\)

Simplifying further:

\(r^2 = 106.103\)

Taking the square root of both sides, we find:

\(r = \sqrt{106.103} = 10.3\)

Therefore, the radius of the silo which is in the shape of cylinders and spheres  , correct to the nearest tenth of a foot, is approximately 10.3 feet.

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Answer: give me the context please

Step-by-step explanation:

Answer:

A function is a relation where each input value is assigned to only one output value.

The domain of a function is the set of all input values, or x-values, for which the function is defined.

The range of a function is the set of all output values, or y-values, for which the function is defined.

To write the equation y = ax + b in function notation, substitute f(x) for y.

Answer:

Give the other person brainliest

Step-by-step explanation:

they deserve it

The solutions for the given problem are as follows:

\(p(S) = S5 + S4 + 25^3 + 35^2 + S + 4\) has no RHP roots.

\(p(S) = S5 + S4 + 6S^3 + 6S^2 + 255 + 25\) has no RHP roots.

The following are the solutions to determine RHP roots in the given polynomials in Control System:

Polynomial: \(p(S) = S5 + S4 + 25^3 + 35^2 + S + 4\)

To identify the number of RHP (Right Half Plane) roots of the given polynomial \(p(S) = S5 + S4 + 25^3 + 35^2 + S + 4\), the number of sign changes in the coefficients of the polynomial's terms can be counted.

Using the Descartes rule of sign, the number of sign changes in the polynomial's coefficients will indicate the number of positive or RHP roots present in the polynomial.

Therefore, there is no change in the sign of coefficients in the polynomial p(S).Thus, the number of RHP roots of the polynomial \(p(S) = S5 + S4 + 25^3 + 35^2 + S + 4\)is zero.

Polynomial: \(p(S) = S5 + S4 + 6S^3 + 6S^2 + 255 + 25\)

The given polynomial is \(p(S) = S5 + S4 + 6S^3 + 6S^2 + 255 + 25\).

The coefficients of the polynomial are as follows:

a5 = 1, a4 = 1, a3 = 6, a2 = 6, a1 = 1, and a0 = 25.

According to the Routh-Hurwitz criterion, the RHP roots of the polynomial p(S) are given by the following conditions:

For the polynomial \(p(S) = S5 + S4 + 6S^3 + 6S^2 + 255 + 25\), the Routh array can be written as:

1    6    25 0
1    6    25 0
6    155 0
5    25    0
25 0

Thus, the polynomial p(S) has no RHP roots since the Routh array contains no changes of sign.

Therefore, the given polynomial has no RHP roots.

Hence, the solutions for the given problem are as follows:

\(p(S) = S5 + S4 + 25^3 + 35^2 + S + 4\) has no RHP roots.

\(p(S) = S5 + S4 + 6S^3 + 6S^2 + 255 + 25\) has no RHP roots.

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Answer:

5x+y=23

Step-by-step explanation:

y+2=-5(x-5)

y+2=-5x+25

y=-5x+25-2

y=-5x+23

23=y-(-5x)

23=y+5x

5x+y=23

The value of  x of chord = 5

By definition of circle,

The chord of a circle is defined as the line segment connecting any two locations on the circle's perimeter; nevertheless, the diameter is the longest chord of a circle that goes through the centre of the circle.

The chord is one of the several line segments that may be made in a circle, and its endpoints are on the circumference.

⇒ 6 (6 + x) = 7 (7 + 11)

Solve for x;

⇒ 36 + 6x = 7 × 18

⇒ 36 + 6x = 126

⇒ 6x = 126 - 36

⇒ 6x = 90

⇒ x = 15

Thus, The value of x = 5

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In general, in the case of two independent events X and Y,

Therefore, in our case,

The minimax regret criterion, also known as the minimax regret strategy, is an approach used in decision theory by economists. It aims to minimize the maximum regret that could be experienced when choosing a particular course of action.

The minimax regret criterion is a decision-making technique that takes into account the potential regret associated with each possible decision. It recognizes that decision-makers often face uncertainty and that their choices may lead to outcomes that are different from what was initially expected. By considering the worst-case scenario or maximum regret for each decision, the minimax regret criterion helps decision-makers select the option that minimizes the potential regret.

In this approach, decision-makers evaluate the consequences of their choices by comparing the actual outcome with the best outcome that could have been achieved if a different decision had been made. The minimax regret strategy focuses on minimizing the maximum regret across all possible decisions, aiming to choose the option that would result in the least regret, regardless of the actual outcome.

Economists often use the minimax regret criterion to analyze decision problems under uncertainty, particularly when the consequences of different actions cannot be precisely predicted. It provides a framework for decision-making that incorporates risk aversion and the desire to minimize the potential for regret. By considering the worst possible outcomes, decision-makers can make more informed choices that take into account the potential regrets associated with their decisions.

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Answer: 51

Step-by-step explanation:

We will use the Order of Operations, sometimes known as PEMDAS.

    Given:

5x² - x + 9

    Plug in the value of 3:

5(3)² - (3) + 9

    To the power of 2:

5(9) - 3 + 9

    Multiply:

45 - 3 + 9

   Subtract:

42 + 9

    Add:

51

Answer:

height of water = 5.60 cm

Step-by-step explanation:

To solve this problem, we must first calculate the volume of water present. Since the rectangular container is completely filled, the volume of water is the same as the volume of the container.

∴ Volume of water = volume of rectangular container

                                 = length × width × height

                                 = 2 cm × 11 cm × 20 cm

                                 = 440 cm³

Therefore the volume of the water is 440 cm³.

The water is poured into a cylindrical container. Therefore, to calculate the height of the water in the cylindrical container, we can use the formula for the volume of a cylinder, and then solve for height:

Volume = \(\pi r^2 h\) = 440

             ⇒ \(\pi \times (5)^2 \times h = 440\)

             ⇒ \(25\pi \times h = 440\)

             ⇒ \(h = \frac{440}{25\pi }\)

             ⇒ h = 5.60 cm

The height of water in the cylindrical container is 5.60 cm.

So the correct choice is option A. The unique solution of the system is (9/2, 11/2, -20/9).

To solve the given system of equations:

6x₁ + 0x₂ + 15x₃ = 15

4x₁ + 2x₂ + 11x₃ = 38

0x₁ + x₂ + 4x₃ = -6

We can write the system in matrix form as AX = B, where A is the coefficient matrix, X is the variable matrix, and B is the constant matrix:

A = |6 0 15| X = |x₁| B = |15|

|4 2 11| |x₂| |38|

|0 1 4| |x₃| |-6|

To determine the solution, we'll perform row reduction on the augmented matrix [A|B] using Gaussian elimination:

|6 0 15 15|

|4 2 11 38|

|0 1 4 -6|

R2 = R2 - (4/6)R1

R3 = R3 - (0/6)R1

|6 0 15 15 |

|0 2 -1 8 |

|0 1 4 -6 |

R2 = (1/2)R2

|6 0 15 15 |

|0 1 -1/2 4 |

|0 1 4 -6 |

R3 = R3 - R2

|6 0 15 15 |

|0 1 -1/2 4 |

|0 0 9/2 -10 |

R3 = (2/9)R3

|6 0 15 15 |

|0 1 -1/2 4 |

|0 0 1 -20/9|

R1 = R1 - 15R3

|6 0 0 27 |

|0 1 -1/2 4 |

|0 0 1 -20/9|

R2 = R2 + (1/2)R3

|6 0 0 27 |

|0 1 0 11/2|

|0 0 1 -20/9|

R1 = (1/6)R1

|1 0 0 9/2 |

|0 1 0 11/2|

|0 0 1 -20/9|

Now we have the row-reduced echelon form of the augmented matrix. Converting it back into equations, we get:

x₁ = 9/2

x₂ = 11/2

x₃ = -20/9

Therefore, the unique solution of the system is:

x₁ = 9/2, x₂ = 11/2, x₃ = -20/9.

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Answer:

\( \sqrt{9 } = 3 \)

We can determine whether two lines are parallel, perpendicular, or neither using the slopes of the lines.

Two lines are parallel when both of the lines have the same slope, for example:

Two lines are perpendicular to each other when the product between the lines is equal to -1, for example:

if none of the conditions stated before the lines are neither parallel nor perpendicular.

In the given exercise:

both lines have different slopes, then they are not parallel.

Find the product between the slopes,

Answer:

The lines shown are perpendicular to each other because the product between the slopes is equal to -1.

The coordinates of the image of the point (-7, 5) are (7, -5).

We are given point P. The coordinates of the point P are (-7, 5). We perform a transformation on the given point. We rotate the given point about the origin counter-clockwise. The angle of rotation is 180°. We need to find the coordinates of the image of the point after rotation.

Let the new coordinates of the image of the point after rotation be denoted by (X, Y). If the coordinates of the original point are (x, y), then the relations between the coordinates of the point and the image are given below.

X = x*cosθ - y*sinθ

X = (-7)*cos(180°) - (5)*sin(180°)

X = (-7)*(-1) - (5)*(0)

X = 7

Y = x*sinθ + y*cosθ

Y = (-7)*sin(180°) + (5)*cos(180°)

Y = (-7)*(0) + (5)*(-1)

Y = -5

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Answer:

3y+x=40

x=40-3y..........1

2x+1=y........2

subst. 2into1:

x=40-3(2x+1)

x=40-6x-3

7x=37

x=37/7

subst.x into2:

2(37/7)+1=y

y=81/7

Answer:

I'm gonna say false

GDP or Gross Domestic Profit is the money that is being spent/made inside the country. So it stands to reason that if people are spending more, the GDP would go up.

Hope this helps!

Yes, the data give convincing evidence to support Phoebe's hunch. As the result of the test is a p-value that is 0.1 of less than 0.05.

The p-value is the probability of obtaining a result as extreme or more extreme given that the null hypothesis is true. The p-value is calculated by comparing the test statistic to the probability distribution under the null hypothesis.

The ratio of seniors bringing a bag lunch= 78/104 or 0.75,

while the ratio of sophomores bringing a bag lunch= 52/80 or 0.65.

This indicates that the proportion of seniors bringing a bag lunch is higher than the proportion of sophomores bringing a bag lunch.

Further, the difference between the proportions is

0.75-0.65 = 0.1,

which is a large enough difference to be considered significant.

The result of the test is a p-value of less than 0.05, which is statistically significant and indicates that the difference in the proportions is due to the different ages, and not due to chance.

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The experimental probability of drawing a diamond is 0.20

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

Outcome Frequency

Heart 7

Spade 3

Club 6

Diamond 4

For diamond, we have

P(Diamond) = Diamond/Total

So, we have

P(Diamond) = 4/20

Evaluate

P(Diamond) = 0.20

Hence, the value is 0.20

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Composite functions are multiple functions combined to form another function.

The value of the composite function (p - q)(2) is 5

To find (p - q)(2), we make use of the following composite function formula:

\((p - q)(x) = p(x) - q(x)\)

Substitute 2 for x in the above formula

\((p - q)(2) = p(2) - q(2)\)

From the table entries, we have:

\(p(2) =3\)

\(q(2) = -2\)

So, the equation becomes

\((p - q)(2) = 3 -- 2\)

Rewrite the above equation as:

\((p - q)(2) = 3 + 2\)

Take the sum of 3 and 2

\((p - q)(2) = 5\)

Hence, the value of (p - q)(2) is 5

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Graph of line y = - 2x + 6 is attached below.

A line is a geometry object characterized under zero width object that extends on both sides. A straight line is just a line with no curves. So, a line that extends to both sides to infinity and has no curves is called a straight line.

Given equation of the line,

y = -2x + 6

It is slope-intercept form of line

slope m = -2

y-intercept b = 6

Graph is drawn as following.

Hence, Graph drawn is attached below.

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Answer:

Enlargement.

Scale Factor: 3

Step-by-step explanation:

Use points to find the enlargement. Typically, you will use all the points.

A(1 , 1) ⇒ A'(3 , 3)

B(2 , 1) ⇒ B'(6 , 3)

C(1 , 2) ⇒ C'(3 , 6)

D(2 , 2) ⇒ D'(6 , 6)

To find the scale factor, simply divide the Point' with the original Point. Use any number.

A'(3 , 3)/(A(1 , 1)) = 3

B'(6 , 3)/(B(2 , 1)) = 3

C'(3 , 6)/(C(1 , 2)) = 3

D'(6 , 6)/(D(2 , 2)) = 3

Your scale factor is 3.

~

Answer:

Scale Factor: 3

It's an enlargement.