Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)
g(x) =
3^ 64 − x2
cubed root of 64-x^2

Using the recipe card, Paul would need to make 7 batches of green slime, we again need the recipe card information.

To answer this question, we need to refer to the recipe card for making green slime.

According to the recipe card, we need 1 cup of water for each batch of green slime.

Paul has 3 cups of water, which means he can make 3 batches of green slime.

So, the answer to the first part of the question is yes, Paul has enough water to make 3 batches of green slime.
Moving on to the second part of the question, we need to find out how many tablespoons of cornstarch Paul would need to make 7 batches of green slime.

According to the recipe card, we need 2 tablespoons of cornstarch for each batch of green slime.

So, to make 7 batches, we need to multiply 2 tablespoons by 7 batches, which gives us 14 tablespoons.
Now, we also know that there are 16 tablespoons in 1 cup.

Therefore, to convert 14 tablespoons into cups, we need to divide it by 16. Doing so, we get 0.875 cups.

So, to make 7 batches of green slime Paul would need 0.875 cups of cornstarch.
In conclusion,

Paul has enough water to make 3 batches of green slime and he would need 0.875 cups (or 14 tablespoons) of cornstarch to make 7 batches of green slime.

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The solution of the differential equation is :

x(t) = (Dx/dt - 10y) / 6
y(t) = (Dx/dt - 6(Dy/dt)) / 28

To solve the given system of differential equations by systematic elimination, we have:

Dx/dt = 6x + 10y
Dy/dt = x - 3y

Step 1: Solve the first equation for x:
Dx/dt = 6x + 10y
x = (Dx/dt - 10y) / 6

Step 2: Substitute this expression for x into the second equation:
Dy/dt = ((Dx/dt - 10y) / 6) - 3y

Step 3: Solve the second equation for y:
Dy/dt = (Dx/dt - 10y) / 6 - 3y
6(Dy/dt) = Dx/dt - 10y - 18y
6(Dy/dt) = Dx/dt - 28y
y = (Dx/dt - 6(Dy/dt)) / 28

Step 4: Use the expressions for x and y to find the solution (x(t), y(t)).

x(t) = (Dx/dt - 10y) / 6
y(t) = (Dx/dt - 6(Dy/dt)) / 28

These are the solutions for the given system of differential equations by systematic elimination.

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a.

If [tex]b[/tex] and [tex]d[/tex] are odd, then [tex]f[/tex] is odd:

We know that  [tex]q[/tex] and  [tex]r[/tex] are in the lowest terms, which means that  [tex]b[/tex] and  [tex]d[/tex] do not have any common factors other than [tex]1[/tex]. Thus, the denominator of  [tex]s,f[/tex] is the least common multiple of  [tex]b[/tex] and  [tex]d[/tex], which is also in the lowest terms.

Let's assume that  [tex]b[/tex] and  [tex]d[/tex] are odd, then we can write them as  [tex]b=2k+1[/tex] and  [tex]d=2m+1[/tex] for some integers  [tex]k[/tex] and  [tex]m[/tex]. So, [tex]s=q+r=\frac{a}{b} +\frac{c}{d} =\frac{(ad+bc)}{bd}[/tex]c)/bd

Now, let's look at the numerator of [tex]s: ad+bc[/tex]. Since [tex]b[/tex] and [tex]d[/tex] are odd, then 2 divides neither of them. Therefore, the product [tex]bd[/tex] is odd.

Now, we have two cases:

Therefore, [tex]ad+bc[/tex] is odd or even depending on the parity of [tex]a[/tex] and [tex]c[/tex]. Now, let's look at the denominator of [tex]s, bd[/tex].

We know that [tex]b=2k+1[/tex] and[tex]d=2m+1.[/tex] So, [tex]bd=(2k+1)(2m+1)\\ =4km+2k+2m+1\\=2(2km+k+m)+1[/tex], which is odd. Thus, [tex]f[/tex] is odd, which proves the statement.

b. If [tex]b[/tex] and [tex]d[/tex] are even, then [tex]f[/tex] is even:

Again, we know that [tex]q[/tex] and [tex]r[/tex] are in lowest terms, which means that [tex]b[/tex] and [tex]d[/tex] do not have any common factors other than [tex]1[/tex]. Thus, the denominator of [tex]s, f[/tex], is the least common multiple of [tex]b[/tex] and [tex]d[/tex], which is also in the lowest terms.

Let's assume that [tex]b[/tex] and [tex]d[/tex] are even, then we can write them as [tex]b=2k[/tex] and [tex]d=2m[/tex] for some integers [tex]k[/tex] and [tex]m[/tex]. So, [tex]s=q+r= \frac{a}{b}+\frac{c}{d}=\frac{(ad+bc)}{bd}[/tex]

Now, let's look at the numerator of [tex]s: ad+bc[/tex]. Since [tex]b[/tex] and [tex]d[/tex] are even, then 2 divides both of them. Therefore, the product [tex]bd[/tex] is even. Now, we have two cases:

Therefore, [tex](ad+bc)[/tex] is odd or even depending on the parity of [tex]a[/tex] and [tex]c[/tex]. Now, let's look at the denominator of [tex]s, bd[/tex]. We know that [tex]b=2k[/tex]and [tex]d=2m[/tex]. So, [tex]bd=2k*2m=4km[/tex], which is even. Thus,[tex]f[/tex] is even, which proves the statement.

Therefore, both statements are true.

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The following parts can be answered by the concept of Converges.

A. For the series Σ(7n² + √n - 2) from n=2 to infinity, we compare it to the series Σ(7n²) which diverges since it's a polynomial with a positive degree. Therefore, the original series also diverges.

B. For the series Σ(1/(7n-3)) from n=1 to infinity, we compare it to the series Σ(1/n) which is a harmonic series and diverges. Since 1/(7n-3) ≥ 1/(7n), the original series also diverges.

C. For the series Σ(1/(n^(3/2) × ln²(n))) from n=3 to infinity, we compare it to the series Σ(1/(n^(3/2))). The p-series with p = 3/2 converges (p > 1). Since ln²(n) grows slower than n^(3/2), the original series converges.

D. For the series Σ(sin²(n)/(n² + 5)) from n=1 to infinity, we compare it to the series Σ(1/n²). The p-series with p = 2 converges (p > 1). Since 0 ≤ sin²(n) ≤ 1, the original series converges by direct comparison test.

E. For the series Σ(cos(1/n) / √n) from n=1 to infinity, we compare it to the series Σ(1/√n). The p-series with p = 1/2 diverges (p ≤ 1). Since -1 ≤ cos(1/n) ≤ 1, the original series also diverges by direct comparison test.

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a) 1.5 m measure the distance between the pivot and the force. Correct option is A

b) 800 N measure the force on the beam. Correct option is F.

c) The moment about B is 1200 Nm.

a. The distance of 1.5 meters measures the distance between the force and the pivot. Therefore, the correct answer is A) The distance between the pivot and the force.

b. 800 N measures the force applied to the beam. Therefore, the correct answer is F) The force on the beam.

c. To compute the moment about B, we need to use the formula:

MB = F × d

where F is the force applied to the beam and d is the perpendicular distance from the pivot point to the line of action of the force.

In this case, F = 800 N and d = 1.5 m. Therefore,

MB = 800 N × 1.5 m = 1200 Nm.

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To make an 86% confidence interval with 15 data points (assuming normality), we would use a t-score of 1.341.

To find the t-score for an 86% confidence interval with 15 data points, we need to find the value of t such that the area under the t-distribution curve between t and -t (i.e., the area of the central region containing 86% of the probability mass) is equal to 0.86.

Since we have a small sample size (n=15), we need to use a t-distribution instead of a standard normal distribution. The degrees of freedom for the t-distribution is (n-1) = 14.

Using a t-distribution table or calculator, we can find that the t-score for a two-tailed test with a 86% confidence level and 14 degrees of freedom is approximately 1.341.

Therefore, to make an 86% confidence interval with 15 data points (assuming normality), we would use a t-score of 1.341.

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We will prove by structural induction that every common divisor of m and n also divides every member of the set L.By structural induction, we have shown that every common divisor of m and n also divides every member of the set L.

• Base cases: m, n ∈ L

• Constructor cases: If j, k ∈ L, then 1. −j ∈ L 2. j + k ∈ L

Base case:

For m and n, let d be a common divisor of m and n. Since d divides both m and n, it follows that d also divides m + n and m - n (by adding and subtracting the two equations following structural induction). Therefore, d is a divisor of both m and n, as well as of j and k in the base cases of L.

Constructor case 1:

Suppose that −j ∈ L and d is a common divisor of m and n. Then, −j = −1 * j and since d is a divisor of j, it follows that d is also a divisor of −j.

Constructor case 2:

Suppose that j + k ∈ L and d is a common divisor of m and n. Then, d divides both j and k, and therefore d divides (j + k).

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When the interest is compounded quarterly the interest rate would be 7.26%  in order for Aria to end up with $68,000.

To solve the question :

The formula for compound interest :

A = P(1 + r/n)^(nt)

Where,

A = Amount,

P = Principal,

R = Annual interest rate,

n = Number of times the interest is compounded per year, and

t = time (years)

Given,

A = $68,000,

P = $23,000,

n = 4 ( as the interest is being compounded quarterly), and

t = 20.

Solving for r :

$68,000 = [tex]$23,000 ( 1+\frac{r}{4} )^{4 * 20}[/tex]

Divide both sides by $23,000 and take the 20th root of both sides,

we get :

[tex](1+\frac{r}{4}) ^{80}[/tex] = 2.9565

Take the natural log of both sides,

we get :

80 ln[tex](1 + \frac{r}{4} )[/tex] = ln (2.9565)

Divide both sides by 80,

we get:

ln [tex](1 + \frac{r}{4} )[/tex] = ln [tex]\frac{ (2.9565)}{80}[/tex]

Take the exponential of both sides,

we get:

1 + r/4 = e^(ln(2.9565)/80)

Subtract 1 from both sides and multiply by 4,

we get:

r = 7.26%

Hence, r =  7.26%.

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Answer:

3. Right 4. Obtuse

Step-by-step explanation:

3. A^2 + B^2 = C^2, therefore the triangle is right

4. A^2+B^2 < C^2: therefore the triangle is obtuse.

Answer:

2√10

Step-by-step explanation:

when trangle ABC is drawn and then you insert ur altitude BD which is a straight line , and u then join it to c. This will form a rectangle. When that rectangle is formed you can use the available adjacent and opp which is now 6 and 2. Use this to find your hypoteneuse. Formula is x^2 + y^2 = z^2. and ur answer will be √40 which is equivalent to 2√10

Part 1: Yes, all squares have 2 pairs of parallel sides.

Part 2: No, not all rectangles have 4 congruent sides.

Part 1: This is because all squares are rectangles, and all rectangles have 2 pairs of parallel sides. Additionally, since all four sides of a square are congruent, this means that the two pairs of sides are also congruent, making them parallel.

Part 2: While all squares are rectangles with 4 congruent sides, rectangles can have two pairs of parallel sides that are not congruent. For example, a rectangle with a length of 5 units and a width of 3 units has two pairs of parallel sides, but they are not congruent.

One pair of sides is longer than the other pair. Therefore, the fact that all squares are rectangles with 4 congruent sides does not mean that all rectangles have 4 congruent sides.

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False. Constant sum scales produce interval scale data, not ratio scale data. In constant sum scales, respondents allocate a fixed number of points among a set of attributes, reflecting their relative importance.

This results in interval scale data where the differences between points are meaningful, but there is no true zero point or absolute zero, which is a key characteristic of ratio scale data.

A ratio scale is a type of measurement scale that has an absolute zero point, meaning that there is a true zero point on the scale that indicates the absence of the attribute being measured. For example, weight and height are ratio scales, where zero weight or height indicates a complete absence of the attribute being measured.

On the other hand, constant sum scales are a type of scale that requires respondents to allocate a fixed total amount among several attributes or options based on their perceived importance or value. This type of scale does not have an absolute zero point, and the scores are not based on the actual quantity of the attribute being measured. For example, constant sum scales are commonly used in marketing research to measure the relative importance of product features or benefits.

As such, constant sum scales do not produce ratio scale data. Instead, they produce interval scale data, where the scores are based on the relative distances between the values on the scale, but there is no true zero point.

Understanding the properties of different measurement scales is important for selecting the appropriate scale for a particular research question and for interpreting and analyzing the data collected using the scale.

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To use the integral test, we need to evaluate the following integral: ∫[infinity]1 6/5x dx Using integration by substitution with u = 6/5x, we get: ∫[infinity]1 6/5x dx = (5/6)∫[infinity]6/5 1 du.

Evaluating this integral gives us: (5/6)∫[infinity]6/5 1 du = (5/6)(1/u)|[infinity]6/5 = (5/6)(0 - 5/6) = -25/36 Since the integral evaluates to a finite value, and the series has the same general term as the function being integrated, we can conclude that the series is convergent by the integral test.

The new limits for the integral will be 5 (lower) and infinity (upper). ∫(5 to infinity) 6/u * (1/5) du. Thus, the integral is divergent. Since the integral is divergent, the original series Σ (n = 1 to infinity) 6/(5n) is also divergent.

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The measure of the side QP and the angle m∠QRP for the rhombus PQRS are 42 and 51° respectively

A rhombus is a two-dimensional geometric shape with four equal sides and four equal angles, but the angles are not necessarily 90 degrees. It is a type of parallelogram.

QP = QR = RS = SP

4a - 14 = 3a

4a - 3a = 14 {collect like terms}

a = 14

QP = 3 × 14

QP = 42

2(m∠P) + 2(78) = 360° {sum of interior angles of a quadrilateral}

m∠P = 102°

m∠QRP = 102°/2

m∠QRP = 51°

Therefore, the measure of the side QP and the angle m∠QRP for the rhombus PQRS are 42 and 51° respectively

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To evaluate the sequence in recursive form, we can use the given recursive formula:

f(n) = -5 x f(n-1)

We are also given the initial value:

f(1) = -3

Using these, we can find the first few terms of the sequence:

f(1) = -3

f(2) = -5 x f(1) = -5 x (-3) = 15

f(3) = -5 x f(2) = -5 x 15 = -75

f(4) = -5 x f(3) = -5 x (-75) = 375

f(5) = -5 x f(4) = -5 x 375 = -1875

So the first few terms of the sequence are: -3, 15, -75, 375, -1875, ...

Note that this sequence is decreasing in magnitude and alternating in sign, since each term is multiplied by -5.

Answer:

12cm+16cm+20cm+4cm

=52cm

Step-by-step explanation:

we find the area of each face and add them together.

We have f '(x) = 2 cos x − 2 sin x, so f"(x) = -2 sin(x) – 2 cos(x) which equals 0 when tan(x) = -1 . Hence, in the interval [tex]0\leq x\leq 2\pi[/tex], f"(x) = 0 when X = [tex]\frac{3\pi }{4}[/tex] and x = [tex]\frac{7\pi }{4}[/tex]

To find when f"(x) = 0 with the given f"(x) = -2 sin(x) - 2 cos(x), we need to solve the equation:
-2 sin(x) - 2 cos(x) = 0
First, divide both sides of the equation by -2 to simplify:
sin(x) + cos(x) = 0
Now, we want to find when tan(x) is equal to a certain value. Recall that tan(x) = sin(x) / cos(x). To do this, we can rearrange the equation:
sin(x) = -cos(x)
Then, divide both sides by cos(x):
sin(x) / cos(x) = -1
Now, we have:
tan(x) = -1
In the given interval 0 ≤ x ≤ 2π, tan(x) = -1 at:
x = 3π/4 and x = 7π/4.
So, in the interval 0 ≤ x ≤ 2π, f"(x) = 0 when x = 3π/4 and x = 7π/4.

The complete question is:-

we have f '(x) = 2 cos x − 2 sin x, so f"(x) = -2 sin(x) – 2 cos(x) which equals 0 when tan(x) = __ . Hence, in the interval [tex]0\leq x\leq 2\pi[/tex], f"(x) = 0 when X = [tex]\frac{3\pi }{4}[/tex] and x = [tex]\frac{7\pi }{4}[/tex]

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The matrix A of the linear transformation t that rotates any vector through an angle of 30 degrees counterclockwise can be found using the standard rotation matrix formula.

A = [cosθ -sinθ; sinθ cosθ]

where θ is the angle of rotation in radians.

Converting 30 degrees to radians gives θ = π/6, so we can substitute this value into the formula to get:

A = [cos(π/6) -sin(π/6); sin(π/6) cos(π/6)]

Simplifying this, we get:

A = [√3/2 -1/2; 1/2 √3/2]

So the matrix A of the linear transformation t that rotates any vector through an angle of 30 degrees counterclockwise is:

A = [√3/2 -1/2; 1/2 √3/2]

This matrix can be used to rotate any vector in R2 by multiplying it with matrix A. The resulting vector will be the original vector rotated counterclockwise by 30 degrees.

In other words, if v is a vector in R2, then the rotated vector r can be found as:

r = Av

where A is the rotation matrix we found above.

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The value of t0.010 for a t-distribution with 26 degrees of freedom is 2.779. The critical t-value corresponding to a probability level of 0.010 and 26 degrees of freedom is approximately 2.779.

To find the value of t0.010 for a t-distribution with 26 degrees of freedom, follow these steps:
1. Identify the given information: We are given the probability level (0.010) and the degrees of freedom (26).
2. Consult a t-distribution table or use a calculator/software to find the critical value. Since t-distribution tables may not provide an exact value for every probability level, you may need to interpolate between the closest values given.
3. In this case, using a t-distribution table or software, we find that the critical t-value corresponding to a probability level of 0.010 and 26 degrees of freedom is approximately 2.779.
4. Round the answer to three decimal places, if necessary: The value is already rounded to three decimal places, so our final answer is 2.779.
Therefore, the value of t0.010 for a t-distribution with 26 degrees of freedom is 2.779.

To find the value of t0.010 for a t-distribution with 26 degrees of freedom, we can use a t-distribution table or a calculator that has a t-distribution function. From the table, we can look for the row that corresponds to 26 degrees of freedom and the column that corresponds to the 0.010 significance level. The intersection of the row and column will give us the value of t0.010. Alternatively, we can use a calculator to find the value of t0.010 using the t-distribution function. Assuming that the question meant to ask about a t-distribution with 26 degrees of freedom, and not 2626 degrees of freedom, we can find the value of t0.010 to be approximately -2.478, rounded to three decimal places. This means that the probability of getting a t-value less than -2.478 or greater than 2.478 is 0.010 or 1%.
It is important to note that the use of decimal places in rounding the answer depends on the level of precision required in the context of the problem.

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Comparing with the given options, we can see that the correct answer is (e):[tex](x - 2)^2 + (y - 2)^2 + (z - 4)^2 = 12[/tex]. We can use the midpoint formula to find the center of the sphere:

Midpoint Formula = [tex]([(0+4)/2], [(2+6)/2], [(5+9)/2])[/tex] [tex]= (2, 4, 7)[/tex]

The radius of the sphere can be found by finding the distance between the center and one of the endpoints:

r = [tex]\sqrt{((4-2)^2 + (6-4)^2 + (9-7)^2)}[/tex] = [tex]\sqrt{(8+4+4) }[/tex]= [tex]\sqrt{16}[/tex] = [tex]4[/tex]

So, the equation of the sphere is:[tex](x - 2)^2 + (y - 4)^2 + (z - 7)^2 = 16[/tex]

Expanding the equation, we get:[tex]x^2 - 4x + 4 + y^2 - 8y + 16 + z^2 - 14z + 49 = 16[/tex]

Simplifying, we get:[tex]x^2 - 4x + y^2 - 8y + z^2 - 14z + 53 = 0[/tex]

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Answer:

A

Step-by-step explanation:

The infinite series solution to the boundary value problem is:

[tex](x,t) = \sum Bn sin(n\pi x / 2) e^{(-(n\pi/2)}^2 t)[/tex]

Using the method of separation of variables to derive the infinite series solution for (x). We begin by assuming a separable solution of the form:

(x,t) = X(x)T(t)

Substituting this into the heat equation, we get:

X(x)T'(t) =[tex]2 T(t) (X''(x)/X(x)^2)[/tex]

Dividing both sides by X(x)T(t), we get:

T'(t)/T(t) =[tex]2 X''(x)/X(x)^2[/tex] = -λ

where λ is a constant. This gives us two separate ODEs:

T'(t) + λ T(t) = 0 with boundary conditions T(0) = 0 and T(/2) = 0

and

X''(x) + λ X(x) = 0 with boundary conditions X(0) = 0 and X'(/2) = 0

Solving the first ODE for T(t), we get:

[tex]T(t) = c1 cos(\sqrt(\lambda) t) + c2 sin(\sqrt(\lambda) t)[/tex]

Applying the boundary conditions, we get:

T(0) = 0 => c1 = 0

T(/2) = 0 => c2 [tex]sin(\sqrt(\lambda) (/2))[/tex] = 0

Since [tex]sin(\sqrt(\lambda) (/2))[/tex] ≠ 0, this implies that c2 = 0. Therefore, T(t) = 0, which means that λ must be negative. Let λ =[tex]-p^2[/tex], where p > 0. Then the second ODE becomes:

X''(x) + [tex]p^2[/tex] X(x) = 0 with boundary conditions X(0) = 0 and X'(/2) = 0

The general solution to this ODE is:

X(x) = c3 cos(px) + c4 sin(px)

Applying the boundary conditions, we get:

X(0) = 0 => c3 = 0

X'(/2) = 0 => c4 p cos(p/2) = 0

Since cos(p/2) ≠ 0, this implies that c4 = 0. Therefore, X(x) = 0, which is not a useful solution. To obtain non-trivial solutions, we must have the condition:

p tan(p/2) = 0

This condition has infinitely many solutions, given by:

p = nπ, n = 1, 2, 3, ...

Therefore, the solutions to the ODE are:

Xn(x) = sin(nπ x / 2)

with eigenvalues:

[tex]\lambda n = -(n\pi/2)^2[/tex]

The general solution to the heat equation is then:

[tex](x,t) = \sum Bn sin(n\pi x / 2) e^{(-(n\pi/2)^2 t)}[/tex]

where the coefficients Bn are determined by the initial condition.

This series solution satisfies the boundary conditions, and it can be shown to satisfy the heat equation.

Therefore, the infinite series solution to the boundary value problem is:

[tex](x,t) = \sum Bn sin(n\pi x / 2) e^{(-(n\pi/2)}^2 t)[/tex]

where Bn are constants determined by the initial condition.

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The interquartile range for the grade 7 data is 9 (30 – 21).

The interquartile range for the grade 8 data is 10 (29 – 19).

The difference of the medians of the two data sets is 6 (21 – 15).

The difference is about 0.67 times the interquartile range of either data set.

It is a measure of the spread of numerical data, which is calculated by subtracting the third quartile (Q3) from the first quartile (Q1). It is used to measure the variability of a data set and is a good indicator of the outliers in the data set.

In the table given, the interquartile range of grade 7 data is 9 and the interquartile range of grade 8 data is 10.

The difference of the medians of the two data sets is 6.

This difference is about 0.67 times the interquartile range of either data set.

This shows that the variability between the two data sets is not significantly different, as the difference between their medians is only two thirds of the IQR of either data set. Thus, the two data sets are relatively similar in terms of their variability.

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The product of the expression is determined using rules of exponent as 5⁻¹⁸.

The product of the expression is calculated by applying the rules of exponent as shown below;

5⁵⁶ x 5²² x 5⁻⁹⁶

Based on rules of exponent;

multiplication sign = implies addition

So we are going to add all the powers of 5 as follows;

5⁵⁶ x 5²² x 5⁻⁹⁶ = 5⁵⁶ ⁺ ²² ⁻ ⁹⁶

= 5⁵⁶ ⁺ ²² ⁻ ⁹⁶

= 5⁻¹⁸

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Answer:

$4.9 or 4 9/10

Step-by-step explanation:

Gift A - $87/10 - $8.7

Gift B - $32/5 - %6.4

Gift C = ?

Total Amount = $20

Gift C = 20 - (Gift A + Gift B)

= 20 - (8.7 + 6.4)

= 20 - 15.1

= 4.9

Money Left for Gift C = $4.9 or 4 9/10

Answer:

The answer to your problem is, C. It is continuous

( I saw that there is more than one answer than the other answer is D. )

Step-by-step explanation:

What a line graph is:

A line graph displays data that continuously changes over a period of time. It can be obtained from bar graphs and histograms ( every histogram is a bar graph ) by joining the mid-point of the top edges of every bar. This makes the analysis easier.

If you look in economic terms ( shown in picture ) everybody uses line graphs from small business owners to the president.

Thus the answer to your problem is, C. It is continuous

Picture of line graph used in economic terms. \/

Answer:

The greatest common factor of 60 and 15 is 15. Therefore, we can use the distributive property with 15 located in front of the parentheses as follows:

60 + 15 = 15 x 4 + 15 x 1

= 15(4 + 1)

= 15 x 5

= 75

Therefore, 60 + 15 = 75 using the distributive property with the greatest common factor located in front of the parentheses.

The t-interval where the curve is concave upward is:

(a) To find dy/dr, we use the chain rule:

dy/dt = dy/dx * dx/dt

dy/dt = (dy/dt)/(dx/dt) [using the reciprocal rule]

Now, we can find dy/dx using the given parametric equations:

dy/dx = (dy/dt)/(dx/dt) = [5(-sin(t))]/[-2sin(2t)]

Simplifying the expression, we get:

dy/dx = -5/2cos(t)

To find d^2y/dx^2, we use the quotient rule:

d^2y/dx^2 = [(d/dt)(-5/2cos(t))(2cos(2t)) - (-5/2sin(t))(-4sin(2t))]/[-2sin(2t)]^2

Simplifying the expression, we get:

d^2y/dx^2 = -5/2cos(3t)

(b) To find where the curve is concave upward, we need to find where d^2y/dx^2 is positive. We know that cos(3t) is positive when 0 < t < 2π/3 and 4π/3 < t < 2π. Therefore, the t-interval where the curve is concave upward is:

(0, 2π/3) U (4π/3, 2π)

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A suitable test statistic to evaluate the variation in bacon consumption from 2011 to 2016 would be a test for two proportions and the null hypothesis.

The test's null hypothesis states that the proportion of adults who ate at least three pounds of bacon in 2011 is identical to that number in 2016.

The difference between the proportion of adults who consumed at least 3 pounds of bacon in 2011 and 2016 could be one possible cause.

The p-value of the test statistic must be calculated in order to determine whether or not the null hypothesis can be ideally rejected because it is comparable to a chi-squared distribution with one degree of freedom.

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Question:-

In 2011, 17 percent of a random sample of 200 adults in the United States indicated that they consumed at least 3 pounds of bacon that year. In 2016, 25 percent of a random sample of 600 adults in the United States indicated that they consumed at least 3 pounds of bacon that year.  Assuming all conditions for inference are met which is the most appropriate test statistic to determine variation of bacon consumption from 2011 to 2016 ?

Answer:

Quadratic Function

Step-by-step explanation:

f(x) is a quadratic function because when distributed you get:

[tex]x^2+10x+25[/tex].  A quadratic function is a polynomial with a degree (power) of two or more.

The other options are eliminated because:

A linear function has a variable with a power of 1 or no variable at all.

A square-root function has a leading variable with a power of 1/2.

An exponential function has a term to the power of a variable.