Simplify using order of operations 15-(12-2.5)+9

Answer:D  a circle   because a sphere is a circular figure

Step-by-step explanation:

Answer:

i think its D

Step-by-step explanation:

Answer: 25

Step-by-step explanation:

because 25 times 5 is 125 and dividing it brings it back to 25

Answer:

2a (blue)

2b (pink/purple)

3b (light blue)

4a (red)

4a (green)

6a (yellow)

2a (purple)

2a+2b (orange)

6a (pink)

4a-b (pinkk)

4a-2b (purple)

6a (green)

Step-by-step explanation:

2 right triangles (2a) make a square

4 right triangles (4a) make a rectangle

2 right triangles (2a) make a bigger triangle

This alone can help with most of them by combining these together and adding/removing semicircles.

Part a: The volume of such base would appear to be larger than it was if the bubble was already let go before the titration's equivalence point.

Part b: There would be no impact if the bubble had already been let go after the equivalent point.

For the stated condition-

An air bubble was present in the buret tip as the student started his part II titration. Unnoticed bubble release occurred at some point in the titration.

The inaccuracy in his titration findings that the bubble would've have made if:

Part a: If the bubble had burst before the titration's equivalence point, the base's volume would have appeared larger than it originally was, having the base seem stronger than it is, and changing calculations.

Part b: There would be no impact if the bubble had already been let go after the equivalent point.

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Answer:

n-8=19

Step-by-step explanation:

Ummi's quotients in this situation represent the unit rates of the advertisement

You will not be able to draw a straight line through the points

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

2.90/10 = 0.29/1 3.48/12 = 0.29.1 4.48/16 = 0.28.1

These can be rewritten as

2.90/10 = 0.29/1

3.48/12 = 0.29/1

4.48/16 = 0.28/1

The quotients mean that

Unit rate = Total amount spent/Number of adverts

So, the quotient expressions represent the unit rate

Recall that

2.90/10 = 0.29/1

3.48/12 = 0.29/1

4.48/16 = 0.28/1

The values of the quotients are not equal

This means that it is not possible to draw a straight line through the points

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By examining the relationships between different traits and methods, we can determine whether a measure is measuring what it is intended to measure, and identify any sources of error or bias in the measurement process.

Multitrait-Multimethod (MTMM) is a statistical technique that is commonly used in psychology and other social sciences to evaluate the validity of measures.

The MTMM correlation matrix is a square matrix that contains the correlations between each combination of traits and methods.

For example, suppose we want to evaluate the validity of a measure of social anxiety. We might use three different methods of measurement: self-report questionnaires, behavioral observation, and physiological measures such as heart rate. We might also measure social anxiety using multiple traits such as shyness, fear of social situations, and self-consciousness.

To arrange the MTMM correlation matrix for this example, we would first identify the traits and methods that we want to examine.

We would then collect data on each measure and calculate the correlations between each combination of traits and methods. We would then arrange these correlations in a square matrix, where the rows and columns represent the traits and methods, respectively.

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The simplified form of the given coordinate is (1.5, 2.5) and the points in the coordinate plane given below:

In the given question we have to represent in given point in the coordinate plane.

The given coordinate is (1 1/2, 1 1/4).

In the given coordinate we firstly simplify the given coordinate.

We solve 1 1/2 this mixed fraction in the improper fraction.

To convert into improper fraction we multiply 1 with 2 then add with 1.

So simplified form is;

1 1/2 = 3/2 = 1.5

We solve 1 1/4 this mixed fraction in the improper fraction.

To convert into improper fraction we multiply 1 with 4 then add with 1.

So simplified form is;

1 1/4 = 5/2 = 2.5

So the simplified form is (1.5, 2.5).

The point on the coordinate plane is given below:

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The solution to the initial-value problem using the Laplace transform is y(t) = (1/25)(1 - \(e^{(-5t)\)) - (1/25)t + (1/125)\(e^{(-5t)\).

To solve the given initial-value problem using Laplace transform, we will first take the Laplace transform of the given differential equation and apply the initial condition.

Take the Laplace transform of the differential equation:

Applying the Laplace transform to the equation y' + 5y = f(t), we get:

sY(s) - y(0) + 5Y(s) = F(s),

where Y(s) represents the Laplace transform of y(t) and F(s) represents the Laplace transform of f(t).

Apply the initial condition:

Using the initial condition y(0) = 0, we substitute the value into the transformed equation:

sY(s) - 0 + 5Y(s) = F(s).

Substitute the given function f(t):

The given function f(t) is defined as:

f(t) = t, 0 ≤ t < 1

f(t) = 0, t ≥ 1

Taking the Laplace transform of f(t), we have:

F(s) = L{t} = 1/s²,

Solve for Y(s):

Substituting F(s) and solving for Y(s) in the transformed equation:

sY(s) + 5Y(s) = 1/s²,

(Y(s)(s + 5) = 1/s²,

Y(s) = 1/(s²(s + 5)).

Inverse Laplace transform:

To find y(t), we need to take the inverse Laplace transform of Y(s). Using partial fraction decomposition, we can write Y(s) as:

Y(s) = A/s + B/s² + C/(s + 5),

Multiplying both sides by s(s + 5), we have:

1 = A(s + 5) + Bs + Cs².

Expanding and comparing coefficients, we get:

A = 1/25, B = -1/25, C = 1/125.

Therefore, the inverse Laplace transform of Y(s) is:

y(t) = (1/25)(1 - \(e^{(-5t)\)) - (1/25)t + (1/125)\(e^{(-5t)\).

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The area of the rectangle is increasing at a rate of 122cm²/s if the length of the rectangle is 11 cm and the width is 9 cm.

The area of a rectangle can be described as the product of the length and width of that rectangle, therefore;

Area = L × W

Here L represents length and W represents the width

Now by differentiating using the product rule;

dA/dt = (dL/dt)(W) + (dW/dt)(L)

As the length is 11 cm and the width is 9 cm and the length is increasing at a rate of 5 cm/s and its width is increasing at a rate of 7 cm/s; substituting these values in the equation;

dA/dt = (5)(9) + (7)(11)

dA/dt = 45 + 77

dA/dt = 122

Hence,  the area of the rectangle is increasing at the rate of 122cm²/s.

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Answer:A) 8 miles

Step-by-step explanation:

8 miles

The inequality that is represented by the given graph is; y ≥ 2x - 5

The formula for equation of a line in slope intercept form is;

y = mx + c

where;

m is slope

c is y-intercept

From the given linear graph, we see that the y-intercept is at y = -5

The slope is gotten by using two coordinates (3, 1) and (4,3) using the formula;

Slope = (y₂ - y₁)/(x₂ - x₁)

Slope = (3 - 1)/(4 - 3)

Slope = 2

Since the Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region, then this is ≤ or ≥ .

Now, the graph is shaded above the solid line which indicates greater sign and as such, the inequality is;

y ≥ 2x - 5

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Answer:

yes

yes is answer of this equation

Answer:

answer is yes

Step-by-step explanation:

The area of the region on is left side of the line x ≤ 1 will be considered.

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

The inequality is given below.

8 ≥ 3x + 5

Simplify the equation, then we have

8 ≥ 3x + 5

3 ≥ 3x

x ≤ 1

The area of the region on is left side of the line x ≤ 1 will be considered.

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Answer:

x (378) + y (378) =

Step-by-step explanation:

First i split 756.00 in half so basically what ever is multiplied by two to get 756 and i got 378. So since x = 3.00 and y = 2.00, it would come out to this:

3.00 x 378 = x (378) =

2.00 x 378 = y (378) =

So:

x (378) + y (378) =

im sorry if i got it wrong-

The area enclosed by the given ellipse is -abπ, where a and b are the lengths of the semi-major and semi-minor axes of the ellipse, respectively.

To find the area enclosed by the given ellipse with parametric equations x = a cos(t) and y = b sin(t), where 0 ≤ t ≤ 2π, we can use the formula for the area of a parametric curve.

The formula for the area A of a parametric curve defined by x = f(t) and y = g(t) over the interval [a, b] is:

A = ∫[a,b] y(t) * x'(t) dt

In this case, we have x = a cos(t) and y = b sin(t).

Let's calculate the area enclosed by the ellipse:

A = ∫[0, 2π] (b sin(t)) * (-a sin(t)) dt

A = -ab ∫[0, 2π] sin^2(t) dt

Using the trigonometric identity sin^2(t) = (1/2)(1 - cos(2t)), we can rewrite the integral as:

A = -ab ∫[0, 2π] (1/2)(1 - cos(2t)) dt

Expanding the integral:

A = -ab * (1/2) ∫[0, 2π] dt + ab * (1/2) ∫[0, 2π] cos(2t) dt

The first integral is simply the length of the interval [0, 2π], which is 2π:

A = -ab * (1/2) * 2π + ab * (1/2) ∫[0, 2π] cos(2t) dt

Simplifying:

A = -abπ + ab * (1/2) ∫[0, 2π] cos(2t) dt

The integral of cos(2t) with respect to t is sin(2t)/2, so:

A = -abπ + ab * (1/2) * [sin(2t)/2] evaluated from 0 to 2π

A = -abπ + ab * (1/2) * [sin(4π)/2 - sin(0)/2]

Since sin(4π) = sin(0) = 0, the second term in the brackets becomes zero:

A = -abπ + 0

A = -abπ

Therefore, the area enclosed by the given ellipse is -abπ, where a and b are the lengths of the semi-major and semi-minor axes of the ellipse, respectively.

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There are 66,960 number of ways to set up a batting order of 9 players from among the 12 players on the baseball team.

To determine the number of ways to set up a batting order of 9 players from among the 12 players on a baseball team, we can use the concept of permutations.

Since the order matters in a batting order, we can use the formula for permutations.

The number of permutations of selecting 9 players from a pool of 12 players is given by:

P(12, 9) = 12! / (12 - 9)!

Calculating this, we have:

P(12, 9) = 12! / 3!

= (12 * 11 * 10 * 9 * 8 * 7 * 6 * 5 * 4) / (3 * 2 * 1)

= 12 * 11 * 10 * 3 * 7 * 2

= 66,960

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The arc length of the polar curve r=9sinθ, 0≤θ≤π3 is 3π.

The formula for the arc length for a polar curve r = f(θ) is given by:

L = ∫_a^b √[r^2 + (dr/dθ)^2] dθ

In this case, we have r = 9sinθ, 0≤θ≤π3, so dr/dθ = 9cosθ. Thus, we can plug these expressions into the formula to get:

L = ∫_0^π/3 √[r^2 + (dr/dθ)^2] dθ

L = ∫_0^π/3 √[(9sinθ)^2 + (9cosθ)^2] dθ

L = 9 ∫_0^π/3 √[sin^2θ + cos^2θ] dθ

L = 9 ∫_0^π/3 1 dθ

L = 9 [θ]_0^π/3

L = 3π

Therefore, the exact arc length of the polar curve r = 9sinθ, 0 ≤ θ ≤ π/3  is 3π.

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The pool has a total water capacity of 7.5 gallons.

Let's use "x" gallons to represent the volume of water the pool can contain.

Given:

A capacity of 1 cubic foot can hold 7.5 gallons of water.

Every 1,000 gallons of water in the pool needs 0.13 ounces of chlorine.

Set up the following proportion:

(7.5 gallons) / (1 cubic foot) = (x gallons) / (1 pool volume in cubic feet)

Cross-multiply the proportion:

7.5 * 1 = x * 1

x = 7.5

So, the pool holds is 7.5 gallons.

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Answer:

67.5 units²

Step-by-step explanation:

We can break this problem down in two parts: The upper triangle and the lower trapezoid.

The upper triangle:

Use the formula \(\frac{1}{2} (b)(h)\) to compute the area of the triangle. Base = 10 and Height = 7.

1/2 (10)(7)

1/2 (70)

=35 units².

The lower trapezoid:

Use the formula \(\frac{1}{2}(base_{1} + base_{2}) (height)\) to compute the area of the trapezoid. Base 1 = 10, Base 2 = 3 and Height = 5.

1/2 (10 + 3)(5)

1/2 (13)(5)

1/2 (65)

=32.5 units²

So, add the two areas of each shape:

35 + 32.5 = 67.5 units².

Answer:

Step-by-step explanation:

67.5 is the answer and thanks for asking

Answer:

Below

Step-by-step explanation:

The equation for slopes are y=mx+b. m = slope, and b = y-intercept.

Since b is negative the y-intercept will be below the x-axis.

Answer:

I have no idea also for geometry

Answer:

Step-by-step explanation:

Let the speed of the plane in sill air is p and the speed of the wind is w.

We have the following equations:

Add up the equations and solve for p:

Find the value of w:

\(\bold{\huge{\underline{ Solution }}}\)

Let assume that the speed of plane is x

whereas, The speed of the wind is y

According to the first condition

That is,

Speed of plane + Speed of wind = 259 km/h

Subsitute the required variables,

\(\bold{ x + y = 259 }\)

\(\sf{ x = 259 - y...eq(1) }\)

That is,

Speed of plane - Speed of wind = 211 km/h

\(\bold{ x - y = 211 ...eq(2) }\)

Subsitute eq(1) in eq( 2 ) :-

\(\sf{ 259 - y - y = 211 }\)

\(\sf{ 259 - 2y = 211 }\)

\(\sf{ - 2y = 211 - 259 }\)

\(\sf{ - 2y = -48 }\)

\(\sf{ y = }{\sf{\dfrac{-48}{-2}}}\)

\(\sf{ y = }{\sf{\cancel{\dfrac{-48}{-2}}}}\)

\(\bold{ y = 24 }\)

Thus, The speed of wind that is y is 24 km/h

Subsitute the value of y in eq(1) :-

\(\sf{ x = 259 - 24 }\)

\(\bold{ x = 235 }\)

Hence, The speed of the wind and the plane in still is air are 24km/h and 235km/h .

The graph of g(x) is the graph of f(x) stretched vertically and reflected over the axis.

The correct option is C.

We can compare the graphs of two functions f(x)=x² and g(x)=-2/3 x² by determining their vertices, domain, range, axis of symmetry, and shape of the graphs. The vertex of f(x)=x² is at the origin (0,0), which means that the parabola opens upward and is symmetrical around the y-axis.

The domain is all real numbers, and the range is y≥0. The axis of symmetry is the y-axis. On the other hand, the vertex of g(x)=-2/3 x² is also at the origin, and it opens downward. It is also symmetrical around the y-axis. The domain is all real numbers, and the range is y≤0.

The axis of symmetry is the y-axis, just like f(x).It is important to remember that g(x) is the negative of f(x), which indicates that g(x) is reflected across the x-axis. Furthermore, the stretch factor is 2/3, which makes the graph of g(x) flatter than the graph of f(x) and it is  stretched vertically and reflects over x axis(option c).

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Randomly dividing volunteers into groups is a better experimental design than allowing the volunteers to choose their experimental group because it minimizes bias and increases the validity of the study.

The experimental design is the framework of any scientific experiment that outlines the different steps that will be used to conduct the research. In psychology, experiments typically involve comparing two or more groups of participants that have been assigned to different experimental conditions.Randomly dividing volunteers into groups is a better experimental design than allowing the volunteers to choose their experimental group because it minimizes bias and increases the validity of the study. If participants were allowed to choose their own group, there is a high likelihood of self-selection bias.

This is a type of bias that occurs when participants are allowed to choose their own groups. In most cases, the participants choose groups that they feel are more beneficial to them. This means that the results of the experiment may be biased towards the preferences of the participants. Random allocation of participants to different groups ensures that any differences between the groups are not due to differences in the participants' characteristics and are due to the independent variable.

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Answer:

81

Step-by-step explanation:

9x + 100 = 829

9x =829-100

= 729

x = 729/9

x = 81

Answer: x = 81

Step-by-step explanation:

You'd want to isolate x, meaning subtracting 100 on both sides to remove that from the equation. This results in 9x = 729, divide by 9 on both sides to remove that too from the equation and you'd be left with x = 81.

Answer:

25 = 5^2

Step-by-step explanation:

Factor the following integer:

25

Hint: | Is 25 divisible by 2?

25 is not divisible by 2 since 25 is odd and 2 is even:

25 = 25 (25 is not divisible by 2)

Hint: | Is 25 divisible by 3?

The sum of the digits of 25 is 2 + 5 = 7, which is not divisible by 3. This means 25 is not divisible by 3:

25 = 25 (25 is not divisible by 2 or 3)

Hint: | Is 25 divisible by 5?

The last digit of 25 is 5, which means 25 is divisible by 5:

25 = 5 5:

25 = 5×5 (5 is not divisible by 2 or 3 since 25 is not)

Hint: | Now try to factor 5. Is 5 prime?

No primes less than 5 divide into it. Therefore 5 is prime:

25 = 5×5

Hint: | Express 25 as a prime power.

There are 2 copies of 5 in the product:

Answer: 25 = 5^2

Answer:

The great migration drew to Harlem some of the greatest minds and brightest talents of the day. some 300, 000 African Americans from the South had moved North.

Step-by-step explanation:

If this is not useful look up Harlem Renaissance website for information

Answer:

Step-by-step explanation:

7 students from the Junior class.

6 students from the Senior class.

4 new members are to be chosen.

Required: Find the number of ways 4 new members can be chosen if 2 or fewer must be from the senior class. So, Therefore, the correct answer is 560 ways.

There are a total of 112 elements shown in the Venn diagram is false statement.

Venn diagrams are used to represent sets, their connections, and set-related actions graphically. The Venn diagram uses circles to represent the relationships between sets and the region that they overlap. A Venn diagram is used in mathematics to represent the logical relationship between sets and their constituent members and aids in the solution of instances based on these sets. A Venn diagram is a type of diagram designed to show every relationship between various sets. Venn diagrams are used in mathematics to show the connection between two or more sets. This approach of articulating sets or specific situations aids in a better comprehension of the problem and makes it easier to draw conclusions. As a result, we frequently utilize circles to illustrate the connections between objects or limited groupings of objects.

Given

Two sets --m and n-- are shown in the Venn diagram

Following statement is false,

c.) there are a total of 112 elements shown in the Venn diagram.

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