1. Given two systems of equations, determine if they have the same solution.
System A System B
−12x+9y=7 −12x+9y=7
9x−12y=6 −9x+5y=9
a.Yes, they have the same solution because the second equation in system B is obtained by multiplying the second equation in system A by 1/3
and subtracting from the first equation in system A.
b.Yes, they have the same solution because the second equation in system B is obtained by multiplying the second equation in system A by 1/3 and adding to the first equation in system A.
c.Yes, they have the same solution because the second equation in system B is obtained by multiplying the second equation in system A by 3
and adding to the first equation in system A.
d. No, they don't have the same solution.

2. What number must you multiply the second equation by so that the sum of the x-coefficients is zero?
7x−y=55
x+3y=33
A.-1/3
B. 1/3
C.-7
D.7
3. Which system of linear equations will yield the same solution as the system below?
x−y=3
2x−3y=−1

A. 2x−2y=−6
2x−3y=−1
B.2x−2y=6
2x−3y=−1
C.−2x+2y=3
2x−3y=−1
D.3x+3y=9
2x−3y=−1

4. A system of equations is shown below.

Equation A: 5x+9y=12
Equation B: 4x−3y=8
Which method eliminates one of the variables?
A. Multiply equation A by 4/5 and add the result to equation B.
B. Multiply equation B by 3 and add the result to equation A.
C. Multiply equation A by −1/3, and add the result to equation B.
D. Multiply equation B by 5/4, and add the result to equation A.

A running shoe manufacturer randomly selects 386 of its shoes for quality assurance and finds that 3. 12% of these shoes are found to be defective. The number of successes (defective shoes) is 12

The number of defective shoes can be calculated by multiplying the percentage of defective shoes (3.12%) by the total number of shoes selected (386).

(3.12/100) * 386 = 12

So, the number of successes (defective shoes) is 12

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t is the parameter, n is the unit normal vector, and κ is the curvature of the space curve.

To find t, n, and κ for the space curve r(t)=-ti-(a cos h (t/a))j, first calculate the position vector r, which is r(t)=-ti-(a cos h (t/a))j. Then, calculate the derivative of the position vector to find the tangent vector t, which is t=i+(t/a)sin h(t/a)j. Next, calculate the second derivative of the position vector to find the normal vector n, which is n=(-(1/a) sin h(t/a))i+(1/a2)(cos h(t/a))j. Lastly, calculate the curvature κ by dividing the magnitude of the second derivative of the position vector by the square of the magnitude of the first derivative, which is κ=(1/a2)(cos h(t/a))/(1+(t/a) sin h(t/a))2.

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Answer:

1/4=0.25

Step-by-step explanation:

The probability that both students pick the same tire is (1/4) * (1/4) = 1/16

The probability of the first student picking a specific tire is 1 in 4, or 1/4. The probability of the second student also picking that same tire is also 1 in 4. To find the probability that both students pick the same tire, we need to multiply the probabilities of each event.

So, the probability that both students pick the same tire is (1/4) * (1/4) = 1/16. This means that the chance of both students picking the same tire is 0.0625 or 6.25%.

To summarize, there are four possible tires that could have gotten a flat, and two students are asked to identify the tire. If each student randomly chooses a tire, the probability that both students will pick the same tire is 1 in 16, or 0.0625. This means that the chance of both students picking the same tire is low, and the likelihood of them choosing different tires is much higher.

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The equation for the tangent line to f(x) = ln(x) at x = 2 is y = 1/2x - 1.

1. Start with the equation for a line in slope-intercept form: y = mx + b

2. Substitute in the slope, which in this case is 1/2 since f'(2) = 1/2: y = 1/2x + b

3. Find the y-intercept, which is the point where the line crosses the y-axis. In this problem, we know that f(2) = ln(2), so we can substitute in 2 for x and ln(2) for y in our equation: ln(2) = 1/2(2) + b

4. Using algebra, solve for b: b = ln(2) - 1

5. Substitute b back into our equation to get the final answer: y = 1/2x - 1

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The value of the limit is 12.

A limit in mathematics is a point at which a function approaches the output for the specified input values. Calculus and mathematical analysis depend on limits, which are also used to determine integrals, derivatives, and continuity.

It is employed in the analysis process and constantly considers how the function will behave at a specific moment.

We can expand the cube:

(2+h)³ = 8+12h +6h²+ h³

Plugging this in,

lim (h->0)8+12h +6h²+ h³-8 / h = lim (h->0) 12h +6h²+ h³ / h

=> lim (h->0) (12h +6h+ h²) = 12

The idea of the limit of a topological net broadens the definition of the limit of a sequence and relates it to the limit and direct limit in theory category. In general, there are two sorts of integrals: definite integrals and indefinite integrals. The upper limit and lower limit for definite integrals are correctly specified.

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Answer: 10 yards is equivalent to 30 feet.

Step-by-step explanation:

In 30 feet, there are 10 yards. Therefore 3 feet are equal to 1 yard. To precisely calculate the length in feet, divide 4 yards by 3.

Add three to the total number of yards.

Add 10 to 3 since 3 feet are equivalent to 1 yard.

10 × 3 = 30.

10 yards equal 30 feet.

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The complete table of values is

x  1   2   3  4

y  4  7  10  13

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

y = 3x + 1

Set the variable x from 1 to 4

So, we have

y = 3 * 1 + 1 = 4

y = 3 * 2 + 1 = 7

y = 3 * 3 + 1 = 10

y = 3 * 4 + 1 = 13

When represented on a table of values, we have

x  1   2   3  4

y  4  7  10  13

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By applying normal approximation to the binomial concept, it can be concluded that the indicated probability is 0.62134

Normal approximation to the binomial is a method of approximating the probabilities associated with the binomial distribution using the normal distribution.

μ = n.p

σ = √np(1-p)

where μ is the mean, n is the number of trials, p is the success probability and σ is the standard deviation.

Now we have:

x = 6

n = 18

p = 0.3

Thus we can calculate the mean:

μ = np

  = 18 * 0.3

  = 5.4

Now we calculate the standard deviation

σ = √μ (1-p)

  = √ 5.4 (1 - 0.3)

  = √ 5.4 * 0.7

  = √ 3.78

  = 1.944

Then we can find the z-score using the mean and standard deviation found in the previous step:

z-score = (x – μ) / σ

            = (6 - 5.4) / 1.944

            = 0.6 / 1.944

            = 0.309

And finally, we can obtain from the z table that P(6) = P(x<0.309) = 0.62134

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Option A is the correct Answer. The total cost of his loan if he paid it off 4 years early is 312,423.90

We have given:

The principal amount which is 30,000

Time which is 30 year

The rate which is 5.5%

And since, we have to find 4 years early so, the time would be: 20-4=16 years.

And since, we have to find for 12 months

Hence, n=12

We have the formula to calculate compound interest:

[tex]A=P(1+\frac{r}{n})^n^t[/tex]

Where

A=compound interest

P= Orginal amount deposited.

r= rate

n=times its compounds per year monthly

t= years.

P=155000, r=5.5, t=16

On substituting the values we get:

[tex]A=155000(1+\frac{0.055}{12})^1^2^*^1^6\\\\A=155000(1+\frac{0.055}{12})^1^9^6\\\\A=155000(14884.0754)\\\\A=312,423. 90[/tex]

Therefore, the compound interest is 312,423.90

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The r-value which suggests a weak negative correlation is B. r = -0.1847.

In statistics, the term "pattern" or "connection" refers to a pattern or relationship between two variables. The degree to which two variables move in opposition to one another is characterized by a negative correlation. For instance, when X and Y are the two variables, a rise in X causes a reduction in Y. Inverse correlation is another name for a negative correlation coefficient. Scatterplots are used to visualise correlation relationships.

We know that the negative correlation weakens as it moves closer to a positive value. From the given values we see that the weakest negative correlation is r = -1847.

Hence, the r-value which suggests a weak negative correlation is B. r = -0.1847.

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Fill the 3-gallon jug all the way.

Pour those 3 gallons of water into the 5-gallon jug.

Fill the 3-gallon jug all the way again, and pour as much as it takes to fill the 5-gallon jug (which is 2 gallons).

Now you have 5 gallons in the 5-gallon jug and 1 gallon in the 3-gallon jug.

Empty the 5-gallon jug.

Pour the 1 gallon in the 3-gallon jug into the 5-gallon jug.

Now fill the 3-gallon jug all the way, and pour all 3 gallons into the 5-gallon jug, which, added to the 1 gallon already in there, and leaves you with exactly 4 gallons.

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Fill the 3-gallon jug all the way.

Pour those 3 gallons of water into the 5-gallon jug.

Fill the 3-gallon jug all the way again, and pour as much as it takes to fill the 5-gallon jug (which is 2 gallons).

Now you have 5 gallons in the 5-gallon jug and 1 gallon in the 3-gallon jug.

Empty the 5-gallon jug.

Pour the 1 gallon in the 3-gallon jug into the 5-gallon jug.

Now fill the 3-gallon jug all the way, and pour all 3 gallons into the 5-gallon jug, which, added to the 1-gallon already in there, leaves you with exactly 4 gallons.

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The number of divisors of 1730 of the form 4n + 1 is 20.

An integer is a whole number, meaning it can be positive, negative, or zero, but it cannot be a fraction or a decimal. Integers are a subset of real numbers, which also include fractional and decimal numbers.

Integers are commonly used in mathematics and computer science for counting and for performing arithmetic operations such as addition, subtraction, multiplication, and division. They are also used to represent the magnitude of a quantity, such as the number of items in a set or the time elapsed in seconds.

In computer programming, integers are often stored as binary numbers, which are sequences of bits that represent positive or negative whole numbers. Different computer architectures have different numbers of bits for representing integers, with common sizes being 8, 16, 32, and 64 bits.

The number (10)10. (11)11. (13)13 is equal to 11 × 13 × 10 = 1730 in decimal.

A divisor of a number can be represented as (4n + 1) where n is a non-negative integer.

To find the number of divisors of 1730 of the form 4n + 1, we need to find the number of factors of 1730 that can be expressed as 4n + 1.

First, we find the prime factorization of 1730:

1730 = 2 × 3 × 5 × 29

Since 1730 is an odd number, one of its divisors must also be an odd number.

The only possible values for n are 0, 1, 2, ..., (number of odd divisors - 1).

In this case, the number of odd divisors of 1730 can be calculated as:

(number of ways to choose 0 odd factors) × (number of ways to choose 1 odd factor) × (number of ways to choose 2 odd factors) × ... × (number of ways to choose 4 odd factors)

= 1 × 4 × 5 × 1 = 20

Thus, the number of divisors of 1730 of the form 4n + 1 is 20.

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Green Probability: 2/5

Yellow Probability: 2/5

Black Number of Beads: 4

If the chance to get a black bead is 1/5 the chance to get green or yellow has to be 4/5. Since both have the same amount of beads, the chance is 2/5 for each of them.

Now we know that 8 beads = 2/5 chance.

To find the number for 1/5 we just divide by 2.

8/2 = 4

Answer:

green Probability:2/5

yellow Probability:2/5

black Number of Beads:4

Step-by-step explanation                                                                                  best of luck

The magnitude of the net force Fnet on the negative charge due to all other charges is 1102.5 N. So, correct option is (a).

Forces are caused by interactions between objects, and they can result from a variety of sources, such as gravitational attraction, electromagnetic interactions, and friction. Forces can be balanced, meaning that the sum of all forces acting on an object is equal to zero, or they can be unbalanced, meaning that the sum of all forces is not equal to zero. Unbalanced forces cause changes in an object's velocity and acceleration, and they can result in changes in an object's position, direction, and speed.

In physics, forces play a central role in our understanding of the world and the laws of motion. They are used to describe the behavior of objects in motion and to analyze the interactions between objects. The study of forces and the interactions between objects is known as mechanics, and it forms the foundation of classical physics.

Overall, the concept of force is a fundamental and important idea in physics and is used to describe and understand the behavior of objects in motion and the interactions between objects.

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The x value when the y value equals 12 is calculated to be 31

From the problem the equation is deduced to be : x = 2y + 7

When y = 12,

we can substitute this value into the equation to find the corresponding x value:

x = 2(12) + 7

x = 24 + 7

x = 31

Therefore, the x value when the y value equals 12 is 31.

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Answer: C. 12000(1.05)^n < 20000

Step-by-step explanation:

When it says that the tuition is increasing at a rate of 5%, it means that you add 1

1+0.5= 1.05

Everything else is the same so you just add 1 to 0.5 and that is the answer.

The interpretation that the likelihood that the first question will be true is (a) Likely.

Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

To interpret the likelihood that the first question will be true.

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

Probability value

The value of the probability and the notation are given as

P(true) = 0.8

As a general rule of probability, we have

Range of probability value = 0 to 1 (inclusive)

Unlikely = less than 0.5

Equally likely and unlikely = 0.5

Likely = greater than 0.5

Using the above as a guide, we have the following:

The value of P(true) = 0.8 is greater than 0.5

This that the probability is likely

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Answer: The sample space of rolling an eight-sided die would be (1, 2, 3, 4, 5, 6, 7, 8)

Step-by-step explanation: thank you

The tangent line on the curve x = 3t² + 5 , y = t³ - 7 have a slope as 1/2 at the point (8, -6).

The Tangent Line to a curve at a specific point is calculated  by the derivative of the curve at that point.

The Slope of the tangent line at a point (x₀, y₀) is given by the derivative of the curve at that point, denoted as f'(x₀).

The curve x = 3t² + 5 , y = t³ - 7 ,

we have to find the value of t such that the slope of the tangent line at that point is 1/2.

we first find the derivative of y with respect to x, which is given by:

⇒ dy/dt = 3t² and dx/dt = 6t

Using chain rule to find the derivative of y with respect to x:

⇒ dy/dx = dy/dt × dt/dx = (3t²)/6t = t/2

Next, we equate derivative to 1/2 and solve for t ;

⇒ t/2 = 1/2

⇒ t = 1

So, the point where the tangent line has slope 1/2 is

⇒ (x, y) = (3t² + 5, t³ - 7)

⇒ (8, -6).

Therefore , the point is (8,-6) .

The given question is incomplete , the complete question is

At what point on the curve x = 3t² + 5 , y = t³ - 7 , does the tangent line have slope as "1/2" ?

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The given inequality states that the value of x is greater than 3 and less than or equal to 4.

3 ≥ x > 4

Given inequality: 3 < x ≤ 4

Negating the given inequality:

1. Negate the inequality symbol:

3 ≥ x

2. Negate the comparison operator:

3 ≥ x > 4

The given inequality states that the value of x is greater than 3 and less than or equal to 4. When we negate this inequality, we get that the value of x is greater than or equal to 3 and greater than 4. This means that the fully simplified negation of 3 < x ≤ 4 is 3 ≥ x > 4.

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The exponential Function is  y(t) = 1500 [tex]e^{-0.0.325t[/tex].

Calculating the exponential growth or decay of a given collection of data is done using an exponential function, which is a mathematical function. Exponential functions, for instance, can be used to estimate population changes, loan interest rates, bacterial growth, radioactive decay, and disease spread.

An exponential function is defined by the formula f(x) = [tex]a^x[/tex], where the input variable x occurs as an exponent.

Given:

Forest covered the area of = 1500 Km²

Now, the area is decreased by 3.25%

So, the exponential Function to represent the situation

y(0)= 1500 km², r = -3.25% = - 0.0325

y(t) = A [tex]e^{rt[/tex], and A = y(0) = 1500

so, y(t) = 1500 [tex]e^{-0.0.325t[/tex]

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The following statements is least accurate: When adding and subtracting, consider the number of buildings instead of Sf.

What does less accurate mean?

When adding or subtracting numbers, the number of digits in the result must be equal to the smallest number of digits after the decimal point of a term in the sum. How closely a measured value agrees with a reference or known value is referred to as accuracy. For example, if you get a weight measurement of 3.2 kg for a substance in a laboratory, but the actual or known weight is 10 kg, your measurement is not accurate.In this case, your measurement is nowhere near the known value.

Typically, bottom-up estimates fall into this category: the most accurate estimate is the final estimate because it is created by estimating individual costs for different parts of the project and then combining them into one estimate.

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The greater angle has a measurement of 152 degrees. The smaller angle has a measurement of 28 degrees.

An angle is a figure in Euclidean geometry created by two rays, called the sides of the angle, that share a common termination, called the vertex of the angle. Angles created by two rays are located in the plane containing the rays. Angles are also generated when two planes intersect. These are known as dihedral angles. An angle is formed by joining two rays (half-lines) that have a shared terminal. The latter is referred to as the angle's vertex, while the rays are referred to as the angle's sides, legs, and arms. An angle is a figure in Plane Geometry generated by two rays or lines that share a common endpoint.

Here,

x+y=180

x=y/4-10

y/4-10+y=180

y+4y=190*4

5y=760

y=152°

x=28°

The measure of the larger angle is 152 degree. The measure of the smaller angle is 28 degree.

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The value of the modulus function is g ( x ) = | x | - 4

Regardless of the sign, a modulus function returns the magnitude of a number. The absolute value function is another name for it.

It always gives a non-negative value of any number or variable. Modulus function is denoted as y = |x| or f(x) = |x|, where f: R → (0,∞) and x ∈ R.

The value of the modulus function is always non-negative. If f(x) is a modulus function , then we have:

If x is positive, then f(x) = x

If x = 0, then f(x) = 0

If x < 0, then f(x) = -x

Given data ,

Let the absolute value function be represented as f ( x )

Now , the value of f ( x ) is

f ( x ) = | x |   be equation (1)

Now , the function f ( x ) is shifted vertically down by 4 units

Down by d units: y = f(x) - d

Substituting the values in the equation , we get

Let the translated function be represented as g ( x )

g ( x ) = f ( x ) - 4

On simplifying the equation , we get

g ( x ) = | x | - 4

Hence , the transformed function is g ( x ) = | x | - 4

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The missing term in the polynomial is 8x³y² - __ + 3xy² - 4y³ is  x²y².

A polynomial is an algebraic expression.

A polynomial of degree n in variable x can be written as,

a₀xⁿ + a₁xⁿ⁻¹ + a₂xⁿ⁻² +...+ aₙ.

Given, A polynomial 8x³y² - __ + 3xy² - 4y³.

Now, If we observe the terms we can conclude 'x' has decreasing powers and y has increasing powers, therefore, the term could be put in the blank to create a fully simplified polynomial written in standard form is x²y².

So, The polynomial is 8x³y² - x²y² + 3xy² - 4y³.

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The triangles in this problem are similar.

Similar triangles share these two features:

For this problem, we have that the side lengths are proportional, as:

3/6 = 4/8 = 5/10 = 0.5.

(same ratio, applying the trigonometric ratios we would find them to have the same angle measures).

However, the triangles in this problem are not congruent, as they have different side lengths.

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The correct statements from the group of answer choices are:

The point satisfies both equation 1 and 2

The point is a solution to the system

What is linear equation ?

A linear equation is an algebraic equation with simply a constant and a first-order (linear) term of the form y=mx+b, where m is the slope and b is the y-intercept. The above is sometimes referred to as a "linear equation with two variables," where y and x are the variables.

To check whether the point (2, 11) is a solution to the system, we need to substitute these values into both equations and see if they hold true.

For equation 1:

-2 * 2 + 5 * 11 = -4 + 55 = 51

For equation 2:

-7 * 11 = -77

-61 - 8 * 2 = -61 - 16 = -77

Since both equations are true for the given point, the statement "The point satisfies both equation 1 and 2" is correct and "The point is a solution to the system" is also correct.

Therefore, the correct statements from the group of answer choices are:

The point satisfies both equation 1 and 2

The point is a solution to the system

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Answer:

Below

Step-by-step explanation:

Out of 50 + 10 = 60 tries, 3 + 20 = 23 times were tails

  23/60 chance of tails

The estimate of the probability that Audi gets tails is given as follows:

p = 23/60.

A probability is calculated via the division of the number of desired outcomes by the number of total outcomes.

Hence the probability of each person getting tails when they throw a biased coin is given as follows:

The total number of throws is given as follows:

50 + 10 = 60.

The number of tails is given as follows:

3 + 20 = 23.

Hence the probability for Audi is given as follows:

p = 23/60.

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The radius of the cone is given by the equation r = 4 inches

A cone is a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the center of base) called the apex or vertex.

The volume of a cone is given by the equation

Volume of Cone = ( 1/3 ) πr²h

where r is the radius of the cone

h is the height of the cone

Surface area of the cone = πrl

where l = √ ( b² + r² )

Given data ,

Let the radius of the cone be represented as r

Now , the equation will be

The volume of the cone = 64π inches³

The height of the cone h = 12 inches

So , Volume of Cone = ( 1/3 ) πr²h

Substituting the values in the equation , we get

64π = ( 1/3 )π r² ( 12 )

Divide by π on both sides of the equation , we get

64 = 4r²

Divide by 4 on both sides of the equation , we get

r² = 16

Taking square roots on both sides of the equation , we get

r = 4 inches

Therefore , the value of r is 4 inches

Hence , the radius of cone is 4 inches

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Answer:

Each child gets $36666.67, each grandchild gets $18333.33

Step-by-step explanation:

220000/6= 36666.67,

36666.67/2= 18333.33