Refer to the equation a x 9 = b. If a =3, what is the value of b

Answer:

number of state parks in Florida is 147.

Equation is  1/3(f) + 36 = 85

Step-by-step explanation:

Given that f represents the number of state parks in Florida.

Also given that number of State Parks in California is 36 more than one third the number of State Parks in Florida

number of State Parks in California = 1/3 (number of State Parks in Florida) + 36

but it is given that There are 85 State Parks in California

and f represents the number of state parks in Florida

85 = 1/3(f) + 36  _________equation

=> 85 - 36 = 1/3 (f)

=> 49 = 1/3 f

=> 49*3 = f

=> f = 147

Thus, number of state parks in Florida is 147.

Equation is  1/3(f) + 36 = 85

Given data:

The given ratio is 16g:72g.

The expression for the given ratio is,

Thus, the given ratio can be written as 2/9.

Answer:

i think 18

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

864 ways

Step-by-step explanation:

4!×3!×2!×3

Correct me if I am wrong

Answer:

B

Step-by-step explanation:

all you need to do is add 5 to the y for example ( -5, 5) add 5 to the (x,5) to make ( -5,10). As you can see only the y value is shifting, not the x value, that's why you need to add 5 to all the y values.

So the answer here is B.

Answer:

B

Step-by-step explanation:

The answer is B because 5 units up from 5 is 10. A and B both have a y coordinate of 5 and the answer letter B is the only one that mention 10 as a y coordinate twice

The range of possible sizes of x= 5.9 miles, 5.8 miles,5.7 miles, 5.6 miles, 5.5 miles

The length between two specific points is called distance. It is measure in linear unit. Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in ordinary language. Distance calculator helps you find the distance between two points.

it is given that distance between B and C is x.

from the given data, the range of all possible sizes for x {5.9, 5.8, 5.7, 5.6, 5.5} miles.

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The range of possible sizes of x= 5.9 miles, 5.8 miles,5.7 miles, 5.6 miles, 5.5 miles

What is distance?

The length between two specific points is called distance. It is measure in linear unit. Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in ordinary language. Distance calculator helps you find the distance between two points.
it is given that distance between B and C is x.
from the given data, the range of all possible sizes for x {5.9, 5.8, 5.7, 5.6, 5.5} miles.

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The amount of minute to reach a distance of 9 inches from the rock is 3 minutes

The complete question is added at the end of this solution

From the question, we have the equation to be

d = 3t

A distance of 9 inches from the rock means that

d = 9

So, we have

3t = 9

Divide both sides by 3

t = 3

Hence, the amount of time is 3 minutes

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Complete question

The equation d=3t represents the relationship between the distance (d) in inches that a snail is from a certain rock and the time (t) in minutes.

How many minutes does it take for the snail to reach a distance of 9 inches from the rock?

We can determine that the necessary angle ∠a is 15° using the provided secant line.

A secant crosses a circle at precisely two points in a case of a circle.

Mathematicians refer to a line that cuts through the points P and Q of any arbitrary curve whose equation is y=f as a secant, from the Latin term secant, which means to cut (x).

So, we know that:

c = 55° and b = 25°

And, the formula is:

∠a = c - b/2

Now, substitute values as follows:

∠a = c - b/2

∠a = 55 - 25/2

∠a = 30/2

∠a = 15°

Therefore, using the given secant line, we know that the required angle ∠a is 15° respectively.

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Complete question:

The average deviation of predicted DVD sales from the actual is 12.2279 million dollars. F-critical value is 4.0785>4.0785 we can reject the null hypothesis. The 95% confidence interval is (17.1536, 25.1554). The 95% prediction interval for the given value of x is (-3.8623, 46.1713).

Estimate the level of DVD sales for movies, by using the amount of annual revenue  generated by the box office gross

We randomly selected a sample of 43 movies for the same year.

Excel  α = 0.05,  r^2 = 0.5123

=51.23%

51.23% of the DVD sales variation is explained by annual revenue.

SY.X = 12.2279.

Therefore, the average deviation of predicted DVD sales from the actual is 12.2279 million dollars.

b. The hypothesis being tested is:

Null Hypothesis, H0: β1 = 0

Alternative Hypothesis, H1: β1 ≠ 0

The test statistic, F = (6439.6133/1)/((12570.025 - 6439.6133)/(42 - 1)) = 43.07

The F-critical value is 4.0785.

Since 43.07 > 4.0785, we can reject the null hypothesis.

Therefore, we can conclude that there is a linear relationship between the revenues of DVD sales and the box-office gross.

c. y = bo + b1*x

y = 4.8445 + 0.1631*x

Put x = 100

y = 4.8445 + 0.1631*100 = 21.1545

The 95% confidence interval for the given value of x is:

= y ± t*s*\(\sqrt{0.026249}\)

= 21.1545 ± 2.020*12.2279*\(\sqrt{0.026249}\)

= (17.1536, 25.1554)

d.  The 95% prediction interval for the given value of x is:

= y ± t×s×\(\sqrt{}\)1 + hin [The t-value is calculated using =TINV(0.05,42-1) in Excel]

= 21.1545 ± 2.020*12.2279*\(\sqrt{1 + 0.026249}\)

= (-3.8623, 46.1713)

Therefore, the value is (-3.8623, 46.1713).

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The 180-degree system and the axis of action are fundamental principles of filmmaking that help create a cohesive and engaging visual experience for the viewer.

The axis of action is a fundamental principle in film and video production, which is used to ensure that the continuity of a scene is maintained and that the viewer's spatial orientation is not disrupted.

It is also known as the 180-degree system because it is based on a visual guideline that involves maintaining a consistent spatial relationship between the camera and the subjects within the scene.

The 180-degree system establishes an imaginary line, also known as the axis of action, between two subjects or objects in a scene. The camera is then positioned on one side of this line, and the subjects are positioned on the other side, allowing the viewer to maintain their spatial orientation throughout the scene.

By maintaining a consistent axis of action, filmmakers can avoid disorienting the viewer and maintain continuity throughout the scene. This technique is especially important in dialogue scenes where the interaction between characters is a critical component of the story.

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By mathematical induction, we have proven that for every integer n ≥ 0, 8|9n+7.

To prove that for every integer n ≥ 0, 8|9n+7, we will use mathematical induction.

First, we need to establish the base case. We are given three options for the base case: n = 0, n = 1, and n = 9. Let's consider each of these options:
- If we choose n = 0, we get 9n+7 = 7, which is not divisible by 8.

Therefore, n = 0 cannot be the base case.
- If we choose n = 1, we get 9n+7 = 16, which is divisible by 8.

Therefore, n = 1 can be the base case.
- If we choose n = 9, we get 9n+7 = 80, which is divisible by 8.

Therefore, n = 9 can also be the base case.

Since we have established that there exists at least one valid base case (n = 1 or n = 9), we can proceed with the inductive step.

Assume that for some integer k ≥ 1, 8|9k+7. We want to prove that 8|9(k+1)+7.

Using algebra, we can rewrite 9(k+1)+7 as 9k+16. We can then factor out an 8 from 9k+16 to get:
9(k+1)+7 = 8k + 9 + 7 = 8k + 16

Since 8|8k and 8|16, we know that 8|8k+16.

Therefore, we have shown that 8|9(k+1)+7.
By mathematical induction, we have proven that for every integer n ≥ 0, 8|9n+7.

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The perimeter of the square will be equal to 48 millimetres.

The perimeter is defined as the sum of all the sides of the given shape. For square, the perimeter will be the sum of all the sides of the square.

Given that a square with a length of 12 millimetres. The area of the square is marked as 132 square millimetres.

The perimeter of the square will be calculated as,

P = 4 x sides

The length of the square is 12 millimetres. For a square all the sides are equal.

The perimeter of the square will be calculated as,

P = 4 x 12

P = 48 millimetres

Therefore, the perimeter of the square will be equal to 48 millimetres.

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The slope of a beer's law plot represents that one can quantitatively determine the molar absorptivity of a substance, which is essential for accurately determining concentrations of unknown samples using spectrophotometric methods.

In Beer's law, the relationship between the concentration of a substance and its absorbance is described by the equation A = εbc, where A is the absorbance, ε is the molar absorptivity (also known as the molar absorptivity coefficient), b is the path length of the sample, and c is the concentration of the substance.

When plotting a graph of absorbance versus concentration, the slope of the line represents the molar absorptivity (ε). The molar absorptivity is a constant that reflects the substance's ability to absorb light at a specific wavelength. A higher molar absorptivity indicates that the substance has a greater tendency to absorb light and is more sensitive to changes in concentration.

Conversely, a lower molar absorptivity indicates weaker absorption characteristics.

In summary, by measuring the slope of the Beer's law plot, one can quantitatively determine the molar absorptivity of a substance.

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We are given a set of vectors S and we need to determine whether each given vector can be written as a linear combination of the vectors in S.

(a) For vector (2, -1, -2), we need to check if there exist scalars k₁ and k₂ such that k₁(2, -1, 3) + k₂(5, 0, 4) = (2, -1, -2). By solving the system of equations, we find that k₁ = -1 and k₂ = 0, so the vector can be written as a linear combination of the vectors in S.

(b) For vector (8, -14, 27/4), we need to check if there exist scalars k₁ and k₂ such that k₁(2, -1, 3) + k₂(5, 0, 4) = (8, -14, 27/4). By solving the system of equations, we find that there are no solutions, so the vector cannot be written as a linear combination of the vectors in S.

(c) For vector (1, -8, 12), we need to check if there exist scalars k₁ and k₂ such that k₁(2, -1, 3) + k₂(5, 0, 4) = (1, -8, 12). By solving the system of equations, we find that there are no solutions, so the vector cannot be written as a linear combination of the vectors in S.

(d) For vector (1, 1, -1), we need to check if there exist scalars k₁ and k₂ such that k₁(2, -1, 3) + k₂(5, 0, 4) = (1, 1, -1). By solving the system of equations, we find that there are no solutions, so the vector cannot be written as a linear combination of the vectors in S.

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Answer

There is not enough information given.

Explanation

All we know is that the neighborhood park has a rectangular shape. The length of each side is not defined. Without the length and width, you can't find the perimeter. There is not enough information given.

Answer:

The answer is \(y^2\)

Step-by-step explanation:

The equation: \(-10 + 3xy - 3xy + y^2 + 10\)

-

Now let us simplify:

1) \(-10 + 3xy - 3xy + y^2 + 10\)

2) \(-10 + y^2 + 10\)

3) \(y^2 + 10 - 10\)

4) \(y^2\)

Answer:

(-6,-5)

Step-by-step explanation:

X+y=-11

solve for x

x=-11-y

substiute x value into 2nd equation

2x-3y=3

2(-11-y)-3y=3

-22-2y-3y=3

-5y=25

y=-5

substitute -5 for y in either equation to find x

x+y=-11

x+-5=-11

x=-6

Answer:

  305 miles

Step-by-step explanation:

You want to know how far Dylan travelled if he drove 50 mph for 3.5 hours and 65 mph for 2 hours.

Distance is the product of speed and time. The total distance Dylan travelled will be the sum of lengths of the legs of his trip.

  distance = speed · time

  total distance = speed1 · time1 + speed2 · time2

  = (50 mi/h)(3.5 h) +(65 mi/h)(2 h) = 305 mi

Dylan travelled a total of 305 miles.

Answer:

Step-by-step explanation:

i think its the second one

Answer:

A: 25 mph

Step-by-step explanation:

A simple slope problem. Rise over run is how you calculate slope, and in this case, it would be- 50/2 -which is equal to- 25/1 - Which, put into context, 25 miles per hour.

walking = biking + 1.5 hour

biking speed = 9 mph + walking speed

route = 6 miles

6/w = 6/(w + 9) - 3/2

Solving for w:

108 = -3w^2 - 27w ==> 3w^2 + 27w + 108 = 0 ==> x^2 + 9x + 36 = 0

The derivative and domain of the function f(x) = x²-2x³  is :\((-\infty, \infty)\).

The slope of a function's graph or, more precisely, the slope of the tangent line at a point can be used to interpret a function's derivative.

Its computation actually stems from the slope formula for a straight line, with the exception that curves require the employment of a limiting procedure.

Calculation for the derivative:

Step 1: Use the definition of the derivative. Remember that f(x+h) means plug (x+h) into everywhere there is an "x" in f(x).

\(\begin{aligned}f^{\prime}(x) &=\lim _{h \rightarrow 0} \frac{f(x+h)-f(x)}{h} \\&=\lim _{h \rightarrow 0} \frac{(x+h)^{2}-2(x+h)^{3}-\left(x^{2}-2 x^{3}\right)}{h} \\&=\lim _{h \rightarrow 0} \frac{\left(x^{2}+2 h x+h^{2}\right)-2(x+h)(x+h)^{2}-x^{2}+2 x^{3}}{h} \quad \text { cancel } x^{2}\end{aligned}\)

       \(\begin{aligned}&=\lim _{h \rightarrow 0} \frac{\left(2 h x+h^{2}\right)-2(x+h)\left(x^{2}+2 h x+h^{2}\right)+2 x^{3}}{h} \\&=\lim _{h \rightarrow 0} \frac{\left(2 h x+h^{2}\right)-2\left(x^{3}+2 h x^{2}+h^{2} x+h x^{2}+2 h^{2} x+h^{3}\right)+2 x^{3}}{h} \\&=\lim _{h \rightarrow 0} \frac{2 h x+h^{2}-2 x^{3}-4 h x^{2}-2 h^{2} x-2 h x^{2}-4 h^{2} x-2 h^{3}+2 x^{3}}{h}\end{aligned}\)

       \(=\lim _{h \rightarrow 0} \frac{2 h x+h^{2}-6 h x^{2}-6 h^{2} x-2 h^{3}}{h}\)

Step 2: Cancel out a factor of h from each term in the numerator with the h in the denominator. Then direct substitute h=0.

      \(\begin{aligned}&=\lim _{h \rightarrow 0}\left(2 x+h-6 x^{2}-6 h x-2 h^{2}\right) \\&=2 x+0-6 x^{2}-6(0) x-2(0)^{2} \\&=2 x-6 x^{2}\end{aligned}\)

f and f' are polynomials, so their domains are all real numbers.

Therefore,  for f(x) = x²-2x³      domain of f and f' :\((-\infty, \infty)\).

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The complete question is -

Find the derivative of the function using the definition of derivative. State the domain of the function and the domain of its derivative f(x) = x²-2x³.

The above obtained relation can be used to find df(0) / dz as we now have df/dr (dr/dz) evaluated at z=0. Thus,df(0) / dz = 2 * 0 / (-dx - 2jdx) = 0. Hence, the required solution is df(0) / dz = 0.

Given complex function is f(z) = x2 + jy2. We are supposed to find df(0) / dz.Solution:To find df(0) / dz, we need to first find f(z) as a function of z. Since, f(z) = x2 + jy2, we have, f(z) = |z|2. Now, we have, |z|2 = (x+iy) (x-iy) = x2 + y2 = r2. Differentiating this with respect to z, we get,df / dz (|z|2) = df / dz (r2) = 2r dr/dz. Now, we need to find dz. This can be found using the following relation, dz = dx + jdy.

Thus, we have,dz = dx + jdy = 1/2 (dz + d\bar{z}) + j 1/2 (dz - d\bar{z}) = (dx - dy)/2 + j (dx + dy)/2. 

Therefore,

df/dz = df/dr (dr/dz)

= 2r / (dx - dy - 2jdx). T

he above obtained relation can be used to find df(0) / dz as we now have df/dr (dr/dz) evaluated at z=0.

Thus, df(0) / dz = 2 * 0 / (-dx - 2jdx) = 0. Hence, the required solution is df(0) / dz = 0.

To find df(0) / dz, we need to first find f(z) as a function of z.

Since, f(z) = x2 + jy2,

we have, f(z) = |z|2.

Now, we have, |z|2 = (x+iy) (x-iy) = x2 + y2 = r2.

Differentiating this with respect to z, we get,

df / dz (|z|2) = df / dz (r2) = 2r dr/dz. 

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Answer:

c=3.14d

c=3.14*8

c=25.12

25.12 cm

Answer:

208.8 inches is the answer

Based on concepts related to the volume of prisms, the volume of the shape depicted with the dimensions shown in the figure is equal to 208.8 square inches. #SPJ2

Prisms are tridimensional elements whose volume is equal to the product of area of its base, in square inches, and its height, in inches. The base of the shape is certainly a rectangle, whose area is equal to the product of its width and length, both in inches.

Therefore, the volume of shape is:

V = (12 in) · (5.8 in) · (3 in)

V = 208.8 in³

Based on concepts related to the volume of prisms, the volume of the shape depicted with the dimensions shown in the figure is equal to 208.8 square inches. #SPJ2

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Answer:

total surface area = 400 cm2

Step-by-step explanation:

Answer:

n=27 degrees

m=36 degrees

Step-by-step explanation:

So the inside triangle has two equal sides. To find these angles you would do the degrees of a triangle (180) minus the known value and then divided by two.

so it is: 180-126/2 which gives you 27 degrees.

this means the n value is 27.

to find m, you have to take away 90 degrees and the n value from 180.

so it is: 180-90-27 which gives you 63 degrees.

now you must take the smaller angle from 63 degrees to find m.

so it is: 63-27 which gives you 36

therefore...

n=27 degrees

m=36 degrees

Answer:

Ratios are proportional when the numbers in the ratio are multiply or divide by the same number. Ex. 3:5 = 6:10 = 12:20 = 9:15 (cross multiply the fractions and the results are the same 3/5 = 6/10)

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

hope it helps