Angel is a high school basketball player. In a particular game, he made some free throws (worth one point each) and some two point shots. Angel made a total of 12 shots altogether and scored a total of 16 points. Graphically solve a system of equations in order to determine the number of free throws made, x,x, and the number of two point shots made, yy.

Answer:

π

Step-by-step explanation:

S = rФ

Arc length = radius x theta

S = (3)([tex]\frac{\pi }{3}[/tex]) = [tex]\pi[/tex]

this is example

So, first we need to write the given ratio as fraction,

= 8/18

= (8 × 2)/(18 × 2)

= 16/36

= 16 : 36 (one equivalent ratio),

So, 16 : 36 is an equivalent ratio of 8 : 18.

Now we will find another equivalent ratio of 8 : 18 by using division.

Similarly, first we need to write the given ratio as fraction,

= 8/18

= (8 ÷ 2)/(18 ÷ 2)

= 4/9

= 4 : 9 (another equivalent ratio)

So, 4 : 9 is an equivalent ratio of 8 : 18.

Therefore, the two equivalent ratios of 8 : 18 are 16 : 36 and 4 : 9.

2. Frame two equivalent ratios of 4 : 5.

Solution:

To find two equivalent ratios of 4 : 5 we need to apply multiplication method only to get the answer in integer form.

First we need to write the given ratio as fraction,

= 4/5

= (4 × 2)/(5 × 2)

= 8/10

= 8 : 10 is one equivalent ratio,

Similarly again, we need to write the given ratio 4 : 5 as fraction to get another equivalent ratio;

= 4/5

= (4 × 3)/(5 × 3)

= 12/15 is another equivalent ratio

Therefore, the two equivalent ratios of 4 : 5 are 8 : 10 and 12 : 15.

Note: In this question we can’t apply division method to get the answer in integer form because the G.C.F. of 4 and 5 is 1. That means, 4 and 5 cannot be divisible by any other number except 1.

The two equivalent ratios of 5:8:4 are 8: 10 and 12: 15.

The fraction is defined as the division of the whole part into an equal number of parts. In mathematics, ratios are used to determine the relationship between two numbers it indicates how many times is one number to another number.

First, we need to write the given ratio as a fraction,

F= 8/18

F= (8 × 2)/(18 × 2)

F= 16/36

F= 16 : 36 (one equivalent ratio),

16: 36 is an equivalent ratio of 8: 18.

Find another equivalent ratio of 8: 18 by using division. Similarly, first, we need to write the given ratio as a fraction,

F= 8/18

F= (8 ÷ 2)/(18 ÷ 2)

F= 4/9

F= 4 : 9 (another equivalent ratio)

4: 9 is an equivalent ratio of 8: 18.

Therefore, the two equivalent ratios of 5:8:4 are 16: 36 and 4: 9.

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Answer:

5.59 times per second.

Step-by-step explanation:

Direct variation is in the form:

[tex]y=kx[/tex]

Where k is the constant of variation.

Inverse variation is in the form:

[tex]\displaystyle y=\frac{k}{x}[/tex]

In the given problem, the frequency of a vibrating guitar string varies inversely  as its length. In other words, using f for frequency and l for length:

[tex]\displaystyle f=\frac{k}{\ell}[/tex]

We can solve for the constant of variation. We know that the frequency f is 4.3 when the length is 0.65 meters long. Thus:

[tex]\displaystyle 4.3=\frac{k}{0.65}[/tex]

Solve for k:

[tex]k=4.3(0.65)=2.795[/tex]

So, our equation becomes:

[tex]\displaystyle f=\frac{2.795}{\ell}[/tex]

Then when the length is 0.5 meters, the frequency will be:

[tex]\displaystyle f=\frac{2.795}{.5}=5.59\text{ times per second.}[/tex]

Answer:

Use pythagorean theorem.

Step-by-step explanation:

The length of the shorter sides are 1 & 4

1^2+4^2=c^2

1+16=c^2

17=c^2

So, the length, rounded to the nearest whole inch, would be 4.

To find the perimeter, you need to find the side lengths first.

The short sides are 6 & 7.

6^2+7^2=c^2

36+49=c^2

85=c^2

So the length for that would be 8, in the nearest whole number.

Add all of the side lengths together.

6+7+8= 21

The perimeter is 21.

The regression line is y = 8.42 - 0.27x and there is a corresponding decrease of 0.27 hours in sleep time.

Given below is the calculation of the mean, variance, and standard deviation of GAS scores.

X f fx x^2 3.2 1 3.2 10.24 3.4 1 3.4 11.56 3.7 1 3.7 13.69 4.1 1 4.1 16.81 5 1 5 25 5.4 1 5.4 29.16 5.6 1 5.6 31.36 5.8 1 5.8 33.64 6 1 6 36 6.3 1 6.3 39.69 6.6 2 13.2 43.56 7.1 1 7.1 50.41 7.4 1 7.4 54.76 8 1 8 64 8.1 2 16.2 65.61 8.6 1 8.6 73.96 8.7 1 8.7 75.69

Total 15 131.8

Mean = sum of x*f/sum of f = 131.8/15 = 8.78

To find the variance of the given data set, use the formula:

Variance (s²) = (Σx² / n) - (mean)²

Variance = (520.75 / 15) - 76.96 = 8.977

The standard deviation is the square root of the variance, so:

Sd = sqrt(8.977) = 2.996

For these data, GAS scores that are less than the mean of the GAS scores tend to be paired with sleep times that are more than the mean of the sleep times.

According to the regression equation, for an increase of one in GAS score, there is a corresponding decrease of 0.27 hours in sleep time.

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Answer:6

Step-by-step explanation:

The mass of the 2D plate is 20.067 kg, with a moment of 5.742 kg.m about the y-axis. The x-coordinate of the center of mass of the 2D plate is 0.286 m. The mass of the 3D body is 62.137 kg, with a moment of 39.748 kg.m about the y-axis. The x-coordinate of the center of mass of the 3D body is 0.640 m.

To determine the center of mass of the 2D shape bounded by the lines y = ±1.3x between x = 0 to 2.1, we need to calculate the mass, moment, and x-coordinate of the center of mass.

1) Mass of the 2D plate:

The area of the 2D shape can be calculated by finding the difference in the areas under the two lines y = ±1.3x between x = 0 and x = 2.1.

Area = ∫(1.3x)dx - ∫(-1.3x)dx

     = ∫1.3xdx + ∫1.3xdx

     = 2 * ∫1.3xdx

     = 2 * [0.65x²] between x = 0 and x = 2.1

     = 2 * (0.65 * (2.1)²)

     = 2 * (0.65 * 4.41)

     = 2 * 2.8665

     = 5.733

Mass = Area * Density

     = 5.733 * 3.5

     ≈ 20.067 kg

Therefore, the mass of the 2D plate is approximately 20.067 kg.

2) Moment of the 2D plate about the y-axis:

The moment of the 2D shape about the y-axis is given by the integral of the product of the y-coordinate and the area element.

Moment = ∫(y * dA)

      = ∫(±1.3x * dA)

      = 2 * ∫(1.3x * dA) between x = 0 and x = 2.1

      = 2 * 1.3 * ∫(x * dA) between x = 0 and x = 2.1

      = 2 * 1.3 * ∫(x * dx)

      = 2 * 1.3 * [0.5x²] between x = 0 and x = 2.1

      = 2 * 1.3 * (0.5 * (2.1)²)

      = 2 * 1.3 * (0.5 * 4.41)

      = 2 * 1.3 * 2.205

      = 5.742 kg.m

Therefore, the moment of the 2D plate about the y-axis is 5.742 kg.m.

3) x-coordinate of the center of mass of the 2D plate:

The x-coordinate of the center of mass of the 2D shape can be calculated using the formula:

x-coordinate = Moment / Mass

x-coordinate = 5.742 kg.m / 20.067 kg

            ≈ 0.286 m

Therefore, the x-coordinate of the center of mass of the 2D plate is approximately 0.286 m.

For the 3D body created by rotating the same lines about the x-axis:

1) Mass of the 3D body:

The volume of the 3D body can be calculated by finding the difference in the volumes between the two shapes obtained by rotating y = ±1.3x about the x-axis between x = 0 and x = 2.1.

Volume = π * ∫(1.3x)^2 dx - π * ∫(-1.3x)^2 dx

      = π * ∫1.69x^2 dx - π * ∫1.69x^2 dx

      =

2 * π * ∫1.69x² dx

      = 2 * π * [0.5633x³] between x = 0 and x = 2.1

      = 2 * π * (0.5633 * (2.1)³)

      = 2 * π * (0.5633 * 9.261)

      = 2 * π * 5.2167

      ≈ 32.703 m³

Mass = Volume * Density

     = 32.703 * 1.9

     ≈ 62.137 kg

Therefore, the mass of the 3D body is approximately 62.137 kg.

2) Moment of the 3D body about the y-axis:

The moment of the 3D body about the y-axis can be calculated similarly to the 2D plate but considering the additional dimension.

Moment = ∫(x * dV)

      = π * ∫(x * (1.3x)² dx) - π * ∫(x * (-1.3x)^2 dx)

      = 2 * π * ∫(1.3x³ dx)

      = 2 * π * [0.325x⁴] between x = 0 and x = 2.1

      = 2 * π * (0.325 * (2.1)⁴)

      = 2 * π * (0.325 * 19.4481)

      = 2 * π * 6.3252

      ≈ 39.748 kg.m

Therefore, the moment of the 3D body about the y-axis is approximately 39.748 kg.m.

3) x-coordinate of the center of mass of the 3D body:

The x-coordinate of the center of mass of the 3D body can be calculated using the formula:

x-coordinate = Moment / Mass

x-coordinate = 39.748 kg.m / 62.137 kg

            ≈ 0.640 m

Therefore, the x-coordinate of the center of mass of the 3D body is approximately 0.640 m.

To summarize the answers:

a) Mass of the 2D plate: 20.067 kg

b) Moment of the 2D plate about the y-axis: 5.742 kg.m

c) x-coordinate of the center of mass of the 2D plate: 0.286 m

d) Mass of the 3D body: 62.137 kg

e) Moment of the 3D body about the y-axis: 39.748 kg.m

f) x-coordinate of the center of mass of the 3D body: 0.640 m

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Answer:

2:36

Step-by-step explanation:

i don't know for my answer

Trigonometric functions are the ratio of different sides of a triangle. The ratios sin∠m, cos∠m, and Tan∠m are 0.758, 0.6522, and 1.1624.

The trigonometric function gives the ratio of different sides of a right-angle triangle.

[tex]\rm Sin \theta=\dfrac{Perpendicular}{Hypotenuse}\\\\\\Cos \theta=\dfrac{Base}{Hypotenuse}\\\\\\Tan \theta=\dfrac{Perpendicular}{Base}[/tex]

where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite to the 90° angle.

As it is given that the base of the triangle for the ∠m is Mk(15 units), the perpendicular is KL(4√19), and the hypotenuse is 23. Now, the trigonometric ratios can be written as,

Sine

[tex]\rm Sin \theta=\dfrac{Perpendicular}{Hypotenuse}\\\\\\\rm Sin (\angle m)=\dfrac{KL}{ML}\\\\\\\rm Sin (\angle m)=\dfrac{4\sqrt{19}}{23}\\\\\\\rm Sin (\angle m)=0.758069\approx 0.758[/tex]

Cosine

[tex]\rm Cos\theta=\dfrac{Base}{Hypotenuse}\\\\\\\rm Cos(\angle m)=\dfrac{MK}{ML}\\\\\\\rm Cos(\angle m)=\dfrac{15}{23}\\\\\\\rm Cos (\angle m)=0.65217\approx 0.6522[/tex]

Tangent

[tex]\rm Tan\theta=\dfrac{Perpendicular}{Base}\\\\\\\rm Tan(\angle m)=\dfrac{KL}{MK}\\\\\\\rm Tan(\angle m)=\dfrac{4\sqrt{19}}{15}\\\\\\\rm Tan(\angle m)=1.16237\approx 1.1624[/tex]

Hence, the ratios sin m, cos m, and tan m are 0.758, 0.6522, and 1.1624.

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The joint probability, Prob(V1 < 0.5, V2 < 0.3), of two uniformly distributed variables V1 and V2, modelled using a Gaussian copula with a correlation coefficient of ρ = 0.5.

Given that V1 and V2 are uniformly distributed between 0.2 and 0.8, we need to transform these variables to standard normal variables before calculating the joint probability. The Gaussian copula is commonly used for this purpose.

The transformation from the uniform distribution to the standard normal distribution can be achieved using the inverse of the cumulative distribution function (CDF) of the standard normal distribution. Let Φ denote the CDF of the standard normal distribution. The transformed variables, denoted as U1 and U2, can be calculated as follows:

U1 = Φ^(-1)(V1)

U2 = Φ^(-1)(V2)

Since the correlation coefficient between U1 and U2 is ρ = 0.5, we can calculate the joint probability using the bivariate normal distribution function with mean 0, standard deviation 1, and correlation coefficient 0.5. Let Φ2 denote the cumulative bivariate normal distribution function.

[tex]Prob(V1 < 0.5, V2 < 0.3) = Prob(U1 < Φ^(-1)(0.5), U2 < Φ^(-1)(0.3))[/tex]

[tex]= Φ2(Φ^(-1)(0.5), Φ^(-1)(0.3); ρ = 0.5)[/tex]

By evaluating the bivariate normal distribution function at the given values, we can obtain the joint probability.

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To write down the joint probability Prob(V1 < 0.5, V2 < 0.3) in terms of the cumulative bivariate normal distribution function, we need to utilize the properties of the Gaussian copula and the correlation coefficient.

Answer:

27 is the answer

Step-by-step explanation:

Answer:

$412.35

Step-by-step explanation:

Answer: $412.35

Step-by-step explanation:

$137.45 x 3 = $412.35 for the total that the bake sale raised.

To solve the differential equation y" + xy' + 2y = 0 using power series, we assume a power series representation for the solution and derive a recurrence relation for the coefficients. The first eight nonzero terms can be found by solving the recurrence relation.

To solve the differential equation y" + xy' + 2y = 0 using power series around x₁ = 0, we can assume a power series representation for the solution:

y(x) = ∑(n=0 to ∞) aₙxⁿ

Let's substitute this power series representation into the given differential equation and find the recurrence relation for the coefficients aₙ.

Differentiating y(x) with respect to x:

y'(x) = ∑(n=0 to ∞) aₙn xⁿ⁻¹

y''(x) = ∑(n=0 to ∞) aₙn(n-1) xⁿ⁻²

Substituting these expressions into the differential equation:

∑(n=0 to ∞) aₙn(n-1) xⁿ⁻² + x ∑(n=0 to ∞) aₙn xⁿ⁻¹ + 2∑(n=0 to ∞) aₙxⁿ = 0

Now, we can rearrange and collect like terms based on the powers of x:

∑(n=0 to ∞) [aₙn(n-1) xⁿ⁻² + aₙn xⁿ⁺¹ + 2aₙxⁿ] = 0

Since this equation must hold for all values of x, each coefficient of xⁿ must be zero. Therefore, we get the following recurrence relation for the coefficients:

aₙ(n-1)(n-2) + aₙ₋₁(n-1) + 2aₙ = 0

Simplifying the recurrence relation:

aₙ(n² - 3n + 2) + aₙ₋₁(n-1) = 0

Now, we can start finding the first few nonzero terms of the power series solution by using the recurrence relation.

First term (n=0):

a₀(0² - 3(0) + 2) + a₋₁(-1) = 0

a₀ + a₋₁ = 0

Second term (n=1):

a₁(1² - 3(1) + 2) + a₀(1-1) = 0

a₁ - a₀ = 0

From the first and second terms, we find a₀ = a₁ and a₋₁ = -a₀.

Third term (n=2):

a₂(2² - 3(2) + 2) + a₁(2-1) = 0

a₂ - 3a₁ = 0

a₂ - 3a₀ = 0

Fourth term (n=3):

a₃(3² - 3(3) + 2) + a₂(3-1) = 0

a₃ - 6a₂ = 0

a₃ - 6a₀ = 0

Continuing this process, we can find the values of a₄, a₅, a₆, and so on, using the recurrence relation.

By solving the recurrence relation for each term, we can determine the first eight nonzero terms of the power series solution to the differential equation y" + xy' + 2y = 0.

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Answer:

a=7

Step-by-step explanation:

4(2a-3) = 2(3a+1)

8a-12 = 6a+2

2a-12=2

2a=14

a=7

Answer:

(D) 112,800

Step-by-step explanation:

75%x150,400= 112,800

112,800 use the headache medicine.

Answer:

option D

Step-by-step explanation:

Out of 4 , 3 use headache medicine . So the fraction is 3/4 .

Total number of people in city = 150,400 .

So ,

⇒ n = 3/4 × Population

⇒ n = 3/4 × 150,400

⇒ n = 112,800

The correct answer is 0.4772.

Step-by-step explanation: We know that Z is a standard normal random variable.

The standard normal distribution has a mean of 0 and a standard deviation of 1. It is also symmetric around the mean with 50% of the area to the left and 50% to the right of the mean.

The area under the standard normal curve is always equal to 1.

Now, we need to calculate the probability of the interval (1.41 < z < 2.85).

We know that the total area under the standard normal curve is 1. Therefore, we can calculate the required probability by finding the area between the two given values on the standard normal curve.

Using a standard normal distribution table, we can find the area corresponding to each value as shown below: Z (from the table)1.41 0.41922.85 0.4978

The area between these two values can be calculated as follows: P(1.41 < z < 2.85) = P(z < 2.85) - P(z < 1.41) = 0.49784 - 0.4192 = 0.07864

So, P(1.41 < z < 2.85) equals 0.07864 or approximately 0.4772.

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A1) To find the intersection of the two equations, we can solve for one variable in terms of the other and substitute that equation into the other equation.

Starting with the first equation:

4x - 3y = 6

Solving for y:

-3y = -4x + 6

y = (4/3)x - 2

Now let's look at the second equation:

-2x + (3/2)y - 3 = 0

Solving for y:

(3/2)y = 2x + 3

y = (4/3)x + 2

Now we have two expressions for y:

y = (4/3)x - 2  and y = (4/3)x + 2

These lines have different y-intercepts and the same slope, so they are not parallel and must intersect at some point.

Setting the two expressions equal to each other:

(4/3)x - 2 = (4/3)x + 2

Subtracting (4/3)x from both sides:

-2 = 2

This is a contradiction, so there is no solution.

Answer: none

A2)

To find the intersection of the two equations, we can again solve for one variable in terms of the other and substitute that equation into the other equation.

Starting with the first equation:

x - 4y = -5

Solving for y:

-4y = -x - 5

y = (1/4)x + (5/4)

Now let's look at the second equation:

3x - 2y = 15

Solving for y:

-2y = -3x + 15

y = (3/2)x - 7.5

Now we have two expressions for y:

y = (1/4)x + (5/4)  and y = (3/2)x - 7.5

Setting the two expressions equal to each other:

(1/4)x + (5/4) = (3/2)x - 7.5

Subtracting (1/4)x and adding 7.5 to both sides:

(11/4) = (5/2)x

Multiplying both sides by 2/5:

x = 22/20 = 11/10

Now we can substitute this value of x into either equation to find y:

y = (1/4)(11/10) + (5/4) = (11/40) + (50/40) = 61/40

Answer: (11/10, 61/40)

A3)

Starting with the first equation:

4x + y = 9

Solving for y:

y = -4x + 9

Now let's look at the second equation:

2x - 3y = 22

Solving for y:

-3y = -2x + 22

y = (2/3)x - (22/3)

Now we have two expressions for y:

y = -4x + 9  and y = (2/3)x - (22/3)

Setting the two expressions equal to each other:

-4x + 9 = (2/3)x - (22/3)

Adding 4x and (22/3) to both sides:

33/3 = (14/3)x

Multiplying both sides by 3/14:

x = 9/14

Now we can substitute this value of x into either equation to find y:

y = -4(9/14) + 9 = -18/7

Answer: (9/14, -18/7)

A4)

Starting with the first equation:

-6x + 9y = 9

Solving for y:

9y = 6x + 9

y = (2/3)x + 1

Now let's look at the second equation:

2x - 3y = 6

Solving for y:

-3y = -2x + 6

y = (2/3)x - 2

Now we have two expressions for y:

y = (2/3)x + 1  and y = (2/3)x - 2

Setting the two expressions equal to each other:

(2/3)x + 1 = (2/3)x - 2

Adding -2/3x and -1 to both sides:

0 = -3A1)

To find the intersection of the two equations, we can solve for one variable in terms of the other and substitute that equation into the other equation.

Starting with the first equation:

4x - 3y = 6

Solving for y:

-3y = -4x + 6

y = (4/3)x - 2

Now let's look at the second equation:

-2x + (3/2)y - 3 = 0

Solving for y:

(3/2)y = 2x + 3

y = (4/3)x + 2

Now we have two expressions for y:

y = (4/3)x - 2  and y = (4/3)x + 2

These lines have different y-intercepts and the same slope, so they are not parallel and must intersect at some point.

Setting the two expressions equal to each other:

(4/3)x - 2 = (4/3)x + 2

Subtracting (4/3)x from both sides:

-2 = 2

This is a contradiction, so there is no solution.

Answer: none

A2)

To find the intersection of the two equations, we can again solve for one variable in terms of the other and substitute that equation into the other equation.

Starting with the first equation:

x - 4y = -5

Solving for y:

-4y = -x - 5

y = (1/4)x + (5/4)

Now let's look at the second equation:

3x - 2y = 15

Solving for y:

-2y = -3x + 15

y = (3/2)x - 7.5

Now we have two expressions for y:

y = (1/4)x + (5/4)  and y = (3/2)x - 7.5

Setting the two expressions equal to each other:

(1/4)x + (5/4) = (3/2)x - 7.5

Subtracting (1/4)x and adding 7.5 to both sides:

(11/4) = (5/2)x

Multiplying both sides by 2/5:

x = 22/20 = 11/10

Now we can substitute this value of x into either equation to find y:

y = (1/4)(11/10) + (5/4) = (11/40) + (50/40) = 61/40

Answer: (11/10, 61/40)

A3)

Starting with the first equation:

4x + y = 9

Solving for y:

y = -4x + 9

Now let's look at the second equation:

2x - 3y = 22

Solving for y:

-3y = -2x + 22

y = (2/3)x - (22/3)

Now we have two expressions for y:

y = -4x + 9  and y = (2/3)x - (22/3)

Setting the two expressions equal to each other:

-4x + 9 = (2/3)x - (22/3)

Adding 4x and (22/3) to both sides:

33/3 = (14/3)x

Multiplying both sides by 3/14:

x = 9/14

Now we can substitute this value of x into either equation to find y:

y = -4(9/14) + 9 = -18/7

Answer: (9/14, -18/7)

A4)

Starting with the first equation:

-6x + 9y = 9

Solving for y:

9y = 6x + 9

y = (2/3)x + 1

Now let's look at the second equation:

2x - 3y = 6

Solving for y:

-3y = -2x + 6

y = (2/3)x - 2

Now we have two expressions for y:

y = (2/3)x + 1  and y = (2/3)x - 2

Setting the two expressions equal to each other:

(2/3)x + 1 = (2/3)x - 2

Adding -2/3x and -1 to both sides: 0 = -3

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Answer:

Yes 2*35.625

Step-by-step explanation:

Just divide by two and now you have dimensions for a rug that has an area of 71.25

Yes, Is it possible for the rug to have an area of 71.25 square feet.

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

We have to given that;

A rug weaver wants to create a large rectangular rug.

Now, From the figure;

Area (S) = (8 + x) (9 - x)

            = - x² + x + 72

            = - (x² - x + 1/4) + 1/4 + 72

           = - (x - 1/2)² + 72.25

Hence,

S (max) = 72.25 square feet

And, 72.25 > 71.25

Thus, Is it possible for the rug to have an area of 71.25 square feet.

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Complete question is shown in figure.

In 4 days your family drive 5/7 of a trip. Your rate of travel is the same throughout the trip. The total trip is 1250 miles. How many more days until you reach your destination?

Find the amount traveled in one day by dividing

(5/7)/4 = 5/28 of the trip

How many days would it take to add up to 1

1/(5/28) = 5.6 days total

since we already traveled for 4 days, we have 1.6 more days to go

Answer 2.05

Step-by-step explanation: hope this helps

Given : jason wants to create a box with the same volume as the one shown

To find : measurements of width and height .

Solution :

Volume of given box

=> 6 * 2 * 3

=36

length to be 4 inches .

lwh = 36

=> 4 wh = 36

=> wh = 9

9 = 1 * 9

9 = 3 * 3

Width and Height can be 3 inches each or 1 and 9 inches

Answer:

The answer is;

box A:3/2

box B:2/3

False.  A graphical interpretation of the 2-point backward difference formula for approximating is not the slope of the line joining the points.

The 2-point backward difference formula is a method for approximating the derivative of a function at a specific point using two nearby points.

The backward difference formula is given by:

f'(x) ≈ (f(x) - f(x - h)) / h

Where f(x) is the given function, f(x - h) is the function evaluated at a point slightly to the left of x, and h is a small step size.

The formula calculates the approximate derivative by computing the difference between the function values at two points and dividing it by the step size. It does not involve the concept of connecting points with a line or calculating slopes.

Therefore, the statement is false. The graphical interpretation of the 2-point backward difference formula does not represent the slope of the line joining the points.

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Answer:

answer is a . x²-8x+16=32

x²-8x=32-16

The correct answers are:

An assignment model with 3 tasks and 4 resources will have 12 constraints, assuming no special constraints and not including non-negativity.

Warehouses are not part of assignment models.

The statement "Each task only requires one resource. Each resource can only complete one task. There are 4 tasks and 6 resources" will lead to an infeasible solution.

Therefore, the correct options are:

12

Warehouses

The statement "Each task only requires one resource. Each resource can only complete one task. There are 4 tasks and 6 resources."

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The area of the triangle with vertices: Q(2,-1,1), R(3,-2,-2), S(5,1,-1) is 6.5 square units.

To find the area of the triangle with vertices: Q(2,-1,1), R(3,-2,-2), S(5,1,-1), we can use the formula Area of triangle = 1/2 * |(x2-x1) (y3-y1)-(x3-x1)(y2-y1)|

where, x1, y1, x2, y2, x3 and y3 are the coordinates of the given triangle Q(2,-1,1)

corresponds to x1=2, y1=-1R(3,-2,-2)

corresponds to x2=3, y2=-2S(5,1,-1)

corresponds to x3=5, y3=1

We can substitute these values in the above formula to get Area of triangle = 1/2 * |(x2-x1) (y3-y1)-(x3-x1)(y2-y1)|= 1/2 * |(3-2)(1-(-1)) - (5-2)(-2-(-1))|    = 1/2 * |-4 - 9|    = 1/2 * 13    = 6.5

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