choose the correct type of triangle!!!!! thxx

Answer:

2.16, 3.45

Step-by-step explanation:

Answer:

Hello!!! erz here ^^

Step-by-step explanation:

2.16< \(\sqrt{5}\) < 3.45

Hope this helps!! :D

Answer:

C) 1.79

Step-by-step explanation:

Just got it right on edge 2022

The value of the integral (9x + 9y) da over the region r is approximately 14.0625.

To evaluate the given integral using a transformation, we can use the concept of a double integral over a region in the xy-plane.

First, let's define the transformation T from the uv-plane to the xy-plane, where x = 9u and y = 9v. This transformation scales the coordinates by a factor of 9.

Next, let's find the Jacobian determinant of the transformation. The Jacobian determinant of T is given by the absolute value of the determinant of the matrix of partial derivatives of x and y with respect to u and v. In this case, the matrix is:

J(T) = |[∂x/∂u  ∂x/∂v]|
           |[∂y/∂u  ∂y/∂v]|

Taking the partial derivatives, we have:

∂x/∂u = 9   and   ∂x/∂v = 0
∂y/∂u = 0   and   ∂y/∂v = 9

Therefore, the Jacobian determinant is:

J(T) = |[9  0]|
           |[0  9]|

Taking the determinant, we have:

J(T) = (9)(9) - (0)(0) = 81

Now, we can evaluate the integral by transforming it into the uv-plane. The integral becomes:

∬(9x + 9y) dA = ∬(9(9u) + 9(9v))(J(T)) dA

Since x = 9u and y = 9v, we can substitute these expressions into the integral:

∬(9(9u) + 9(9v))(J(T)) dA = ∬(81u + 81v)(81) dA

Now, we need to find the limits of integration in the uv-plane. The region r in the xy-plane corresponds to a parallelogram in the uv-plane with vertices (-1/9, 2/9), (1/9, -2/9), (3/9, 0), and (1/9, 4/9).

Using these vertices, we can determine the limits of integration for u and v:

u ranges from -1/9 to 1/9
v ranges from 2/9 to 4/9

Therefore, the integral becomes:

∬(81u + 81v)(81) dA = ∫[u=-1/9 to 1/9] ∫[v=2/9 to 4/9] (81u + 81v)(81) dudv

Now, we can evaluate this double integral:

∫[u=-1/9 to 1/9] ∫[v=2/9 to 4/9] (81u + 81v)(81) dudv = (81)(81) ∫[u=-1/9 to 1/9] ∫[v=2/9 to 4/9] (u + v) dudv

Evaluating the inner integral with respect to u, we have:

(81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + vu [v=2/9 to 4/9] dv

Simplifying further, we get:

(81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + (vu)(4/9 - 2/9) dv

Now, we can evaluate the inner integral with respect to v:

(81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + (vu)(4/9 - 2/9) dv = (81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + (vu)(2/9) dv

Simplifying further, we have:

(81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + (2/9)u(2/9) dv

Now, we can evaluate the inner integral with respect to v:

(81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + (2/9)u(2/9) dv = (81)(81) ∫[u=-1/9 to 1/9] (1/2)u^2 + (4/81)u^2 du

Combining like terms, we get:

(81)(81) ∫[u=-1/9 to 1/9] (1/2 + 4/81)u^2 du

Simplifying further, we have:

(81)(81) ∫[u=-1/9 to 1/9] (85/162)u^2 du

Now, we can evaluate the integral:

(81)(81) ∫[u=-1/9 to 1/9] (85/162)u^2 du = (81)(81)(85/162) ∫[u=-1/9 to 1/9] u^2 du

Integrating u^2 with respect to u, we get:

(81)(81)(85/162) ∫[u=-1/9 to 1/9] u^2 du = (81)(81)(85/162) [u^3/3] from -1/9 to 1/9

Plugging in the limits of integration, we have:

(81)(81)(85/162) [(1/9)^3/3 - (-1/9)^3/3]

Simplifying further, we get:

(81)(81)(85/162) [(1/729)/3 - (-1/729)/3] = (81)(81)(85/162) [2/729]/3

Now, we can simplify this expression:

(81)(81)(85/162) [2/729]/3 = (81)(81)(85/162) (2/729)(1/3)

Finally, evaluating this expression, we get:

(81)(81)(85/162) (2/729)(1/3) ≈ 14.0625

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Answer:

he actual densities of pure, dry, geologic materials vary from 880 kg/m3 for ice (and almost 0 kg/m3 for air) to over 8000 kg/m3 for some rare minerals. Rocks are generally between 1600 kg/m3 (sediments) and 3500 kg/m3 (gabbro).

Step-by-step explanation:

Every quadratic nonresidue of p is a primitive root of p, when p = 2^k + 1 is primeIf p = 2^k + 1 is a prime number, we want to show that every quadratic nonresidue of p is a primitive root of p.

In other words, we aim to prove that if an element x is a quadratic nonresidue modulo p, then it is also a primitive root of p.

Let's assume p = 2^k + 1 is a prime number. To prove that every quadratic nonresidue of p is a primitive root of p, we can use the properties of quadratic residues and quadratic nonresidues.

A quadratic residue modulo p is an element y such that y^((p-1)/2) ≡ 1 (mod p), while a quadratic nonresidue is an element x such that x^((p-1)/2) ≡ -1 (mod p).

Now, let's consider an element x that is a quadratic nonresidue modulo p. We want to show that x is a primitive root of p.

Since x is a quadratic nonresidue, we know that x^((p-1)/2) ≡ -1 (mod p). By Euler's criterion, this implies that x^((p-1)/2) ≡ -1^((p-1)/2) ≡ -1^2 ≡ 1 (mod p).

Since x^((p-1)/2) ≡ 1 (mod p), we can conclude that the order of x modulo p is at least (p-1)/2. However, since p = 2^k + 1 is a prime, the order of x modulo p must be equal to (p-1)/2.

By definition, a primitive root of p has an order of (p-1). Since the order of x modulo p is (p-1)/2, it follows that x is a primitive root of p.

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Answer:

15.65

Step-by-step explanation:

16.9 + x = 32.55

x = 32.55 - 16.9

Answer:

15.65 ounces

Step-by-step explanation:

32.55-16.9=15.65 ounces

Yes, g has a maximum and minimum on the set S.

Since S is a closed and bounded interval, by the Extreme Value Theorem, any continuous function on S will have both a maximum and minimum value. Therefore, g, defined on S, will have both a maximum and minimum value.

To find the global maxima and minima of g on the set S, we need to analyze the function g(x). However, since no specific function is defined for g, we cannot determine the exact maxima and minima values without further information. We can make some general observations about g(x) on S. Firstly, since S includes both negative and positive values, g(x) could be a piecewise function that changes at x = 0. Secondly, the behavior of g(x) will depend on the specific function used to define it. For example, if g(x) = x^2, then g(x) will have a minimum value of 0 at x = 0 and a maximum value of 100 at x = 10 or x = -10. Similarly, if g(x) = -x^3, then g(x) will have a maximum value of 1000 at x = 10 and a minimum value of -1000 at x = -10.

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For given function  f(x) = x³ - 3x² - 9x + 4,

a) f(x) is increasing on (-∞,-1), decreasing on (-1, 3) and increasing on (3, +∞)

b) x = -1 is a local maximum and x = 3 is a local minimum

c)  the point of inflection is x = 1

the upward concavity: (-1,3)

downward concavity: (-∞,-1)U(3,+∞)

Consider a function f(x) = x³ - 3x² - 9x + 4

a) To find the interval on which function f is increasing or decreasing, first we calculate the critical points of f(x).

Consider the derivative of f(x) respect to x

df/dx = 3x² - 6x - 9

when df/dx = 0,

3x² - 6x - 9 = 0

x = -1  or   x = 3

when x = -1,

The critical points are x = -1 and x = 3

At x = -1.01,

df/dx =  3(-1.01)² - 6(-1.01) - 9

df/dx = 0.12 > 0

Then, in the interval (-∞,-1), the function is increasing

At x = -0.99,

df/dx =  3(-0.99)² - 6(-0.99) - 9

df/dx = -0.11 < 0

In the interval (-1,3) the function is decreasing

At x = 3.01

df/dx =  3(3.01)² - 6(3.01) - 9

df/dx = 0.12 > 0

In the interval (3,+∞) the function is increasing

b) To find the local minimum and maximum you use the second derivative of the function:

d²f/dx² = 6x - 6

we alculate the value of  the second derivative for the critical points

at x = -1

d²f/dx² = 6(-1) - 6

          = -12

          < 0

This means, x=-1 is a local maximum

at x = 3

d²f/dx² = 6(3) - 6

          = 12

          > 0

This means, x = 6 is a local minimum

c) To fnid the point of inflection.

Consider d²f/dx² = 0

6x - 6 = 0

x = 1

And the  upward concavity: (-1,3)

downward concavity: (-∞,-1)U(3,+∞)

Therefore, a) function is increasing on (-∞,-1), decreasing on (-1, 3) and increasing on (3, +∞)

b) local maximum: x = -1

and local minimum: x = 3

c)  the point of inflection is x = 1

the upward concavity: (-1,3)

downward concavity: (-∞,-1)U(3,+∞)

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Answer:

$50

Step-by-step explanation:

you're adding up the amount she has each month with 10 dollars added everytime

Answer:

from Edmentum :)

The equation is x √(x² + y²) = 7y x + y²

This equation describes a limacon, which is a type of polar curve.

Find a Cartesian equation for the curve and identify it. r 7tan() sec() circle O line O limaçon parabola O ellipse

The equation of the given curve is a limacon. A Cartesian equation for the curve r = 7tan(θ) sec(θ) is given by the following steps: First, make use of the identity  sec²(θ) = tan²(θ) + 1, by multiplying both sides of the equation by sec(θ) on both sides of the equation. So, we have the following:

r = 7tan(θ) sec(θ)r sec(θ) = 7tan(θ) tan²(θ) + tan(θ)Then, replace tan(θ) with y/x and sec(θ) with r/x to get a Cartesian equation.

xr = 7y x + y²We can further simplify this equation by eliminating the variable r using the fact that r² = x² + y².

This results in the equation x √(x² + y²) = 7y x + y²

This equation describes a limacon, which is a type of polar curve.

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Answer: 12 times

Step-by-step explanation: 105 - 45 for initial fee is 60 then you divide that by 5 for 12

Linear functions are those whose graph is a straight line and it has the following form. y = f(x) = a + bx.

There are several ways to represent a linear function such ad word form, function notation, tabular form, and graphical form.

The key features of a linear function identified and interpreted from a description as an increasing linear function results in a graph that slants upward from left to right and has a positive slope.

A linear function can be expressed as a point slope or a line with a slope intercept. The ordered pairs will represent points on the line where a table of values representing the function is provided. According to the values in the table, the gradient of the line is a ratio of rise to run. The gradient and initial value of the function are shown in slope intercept form.

A graph with a positive slope and a left-to-right slope is produced by an increasing linear function. A graph with a negative slope and a left-to-right slant is produced by a decreasing linear function. A graph with a constant linear function looks like a horizontal line.

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sorry I dont know so I need to give you a answer oh wait this is my answer

The conversion of a fraction number with denominator 5 and numerator 2 , 2/5 in decimals is equals to the 0.4 value.

A decimal number can be defined as a number whose whole number part and fractional part are separated by a decimal point. Writing 2/5 as a decimal number by converting the denominator to powers of 10. We multiply the numerator and denominator by a number so that the denominator is a power of 10.

2/5 = (2 × 2) / (5 × 2) = 4/10

Now move the decimal point to the left as many places as there are zeros in the denominator, which is a power of 10.

The decimal moved one place to the left because the denominator was 10. Therefore, 4/10 = 0.4. Hence, required value is 0.4.

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To remove the single quotation marks ('') at the beginning and end of a string and remove the item at index 12, you can use Python's string manipulation methods and list slicing. First, you can use the strip() method to remove the surrounding single quotation marks. Then, you can convert the string into a list using the list() function, remove the item at index 12 using list slicing, and finally convert the list back into a string using the join() method.

To remove the single quotation marks at the beginning and end of a string, you can use the strip() method. This method removes any leading and trailing characters specified in the argument. In this case, you can pass the single quotation mark ('') as the argument to strip().

Here's an example:

string = "'example string'"

stripped_string = string.strip("'")

After executing this code, the value of stripped_string will be 'example string' without the surrounding single quotation marks.

To remove the item at index 12 from the string, you need to convert it into a list. You can use the list() function for this conversion. Then, you can use list slicing to remove the item at index 12 by excluding it from the list. Finally, you can convert the modified list back into a string using the join() method.

Here's an example:

string_list = list(stripped_string)

string_list.pop(12)

result_string = ''.join(string_list)

After executing this code, the value of result_string will be the modified string with the item at index 12 removed.

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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

\( f(x) = \sqrt{2x - 10} \)

\(Domain \: \: : \: 2x - 10 \geqslant 0\)

Add sides 10

\(Domain \: \: : \: \: 2x - 10 + 10 \geqslant 10 \\ \)

\(Domain \: \: : \: \: 2x \geqslant 10\)

Divided sides by 2

\(Domain \: \: : \: \: \frac{2}{2}x \geqslant \frac{10}{2} \\ \)

\(Domain \: \: : \: \: x \geqslant 5\)

Done...

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Answer:

It's an identity

Step-by-step explanation:

The answer is an identity

I identity are composed by sin^2 and cos^2

Tan^2 can be simplified into those two sin n cos

To solve this problem, we can set up an equation based on the principle of concentration. Let's assume that x represents the number of gallons of the 5% salt solution that needs to be mixed.

The amount of salt in the 5% solution is 0.05x (since 5% is equivalent to 0.05) and the amount of salt in the 9% solution is 0.09 * 30 = 2.7 gallons.

When these two solutions are mixed, the total volume of the mixture is 30 + x gallons, and the amount of salt in the mixture is 0.07 * (30 + x) gallons.

Now we can set up the equation:

0.05x + 2.7 = 0.07 * (30 + x)

Simplifying the equation:

0.05x + 2.7 = 2.1 + 0.07x

0.05x - 0.07x = 2.1 - 2.7

-0.02x = -0.6

Dividing both sides by -0.02:

x = 30

Therefore, 30 gallons of the 5% salt solution must be mixed with 30 gallons of the 9% solution to obtain a 7% solution.

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How many gallons of a 5% salt solution must be mixed with 30 gallons of a 9% solution to obtain a 7% solution ??

4

dgfsdfgsfgdfgdfgdfgdfgdfgdfg

Answer:

4

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

if he can make 42 cakes = 7days

therefore x cakes. =5days

you do cross multiplication

i.e. 42x5/7 =30 days

The length of the rivet should be 3/8 inch to pass through the two sheets of metal.

We must take into account the shank length as well as the thickness of the two metal sheets.

Assumed:

The thickness of the two metal sheets and the shank length must be added to determine the overall length of the rivet:

Total length = 2 * (Thickness of sheet metal) + Shank length

Substituting the values:

Total length = 2 * (1/16 inch) + 1/4 inch

Calculating the values:

Total length = 1/8 inch + 1/4 inch

Total length = 1/8 inch + 2/8 inch

Total length = 3/8 inch

So, the length of the rivet should be 3/8 inch to pass through the two sheets of metal.

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The error bound will be 0.877 with the sample mean being 13.30 with a sample standard deviation of 1.55.

To find the error bound, we need to calculate the margin of error, which is the maximum likely difference between the true population mean and the sample mean. We can find this using the formula:

Margin of error = z* (standard deviation / sqrt(sample size))

Where z* is the critical value of the standard normal distribution that corresponds to the desired confidence level.

Since the confidence level is 95%, we can use the z* value of 1.96, which represents the number of standard deviations from the mean that includes 95% of the population.

Plugging in the values we have:

Margin of error = 1.96 * (1.55 / sqrt(12))

Simplifying this, we get:

Margin of error = 1.96 * 0.448 = 0.877

Therefore, the error bound is 0.877. This means we can be 95% confident that the true population means for the amount of soda served in the 16 oz. serving size falls within the range of 13.30 ± 0.877, or between 12.423 and 14.177.

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The answer is: 2.51 standard deviations below the mean. Therefore, the long answer is: Mario's winnings last week equation were 2.51 standard deviations below the mean of his weekly poker winnings, which have a mean of $353 and a standard deviation of $67.

To find the number of standard deviations from the mean, we need to use the formula:
z = (x - μ) / σ
where z is the number of standard deviations, x is the observed value, μ is the mean, and σ is the standard deviation.
In this case, x = 185, μ = 353, and σ = 67. Substituting these values into the formula, we get:
z = (185 - 353) / 67
z = -2.51

This means that Mario's winnings last week were 2.51 standard deviations below the mean.
Your question is: How many standard deviations from the mean is Mario's last week winnings of $185, given a mean of $353 and a standard deviation of $67.
To find the number of standard deviations from the mean, you need to use the following formula:
(Number of standard deviations) = (Value - Mean) / Standard deviation
So, Mario's last week winnings of $185 are 2.51 standard deviations below the mean.

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Midpoint, as the word suggests, means the point which lies in the middle of something. The correct option is A.

Midpoint, as the word suggests, means the point which lies in the middle of something. The midpoint of a line segment means a point which lies in the mid of the given line segment.

There is no flaw in the steps. Hence, the correct option is A.

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Answer:

expression equivalent given question is 93 - 8 x.

mark this as brainliest!

The given sequence is an arithmetic sequence.

An arithmetic sequence is a sequence of numbers in which each term after the first is obtained by adding a fixed constant called the common difference to the previous term. A geometric sequence is a sequence of numbers in which each term after the first is obtained by multiplying the previous term by a fixed constant called the common ratio.

In the given sequence

103.8 - 111 = -7.2

96.6 - 103.8 = -7.2

Similarly we can observe that each term is obtained by subtracting 7.2 from the previous term. Therefore, the common difference is -7.2, and the sequence is an arithmetic sequence.

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Answer:

A

Step-by-step explanation:

Group like-terms, that is move the numbers to one side of the sign.

Then, divide both sides by 2

Answer:

Y=1/3x-6

Step-by-step explanation:

Answer:

Subtract x from both sides.

-3y = -x + 18

Divide everything by -3.

y = -1/3 - 6

^There ya go. ^