whats the slope of this line
Answer:
5/3
Step-by-step explanation:
what percentage of the world's land area has been granted some degree of protection in a park or preserve? view available hint(s)for part a what percentage of the world's land area has been granted some degree of protection in a park or preserve? 100% 90% 15% 1%
The answer to the question, "What percentage of the world's land area has been granted some degree of protection in a park or preserve?" is 15%.
What is a protected area?
A protected area is a defined geographical space, recognised, dedicated and regulated, through legal or other effective means, to achieve the long-term conservation of nature with associated ecosystem services and cultural values.
How does a protected area achieve conservation?
A protected area, by definition, is a place dedicated to the protection and maintenance of biodiversity and other natural and cultural resources of the area. Protected areas often encompass critical habitats, ecosystems, and landscapes. They offer essential ecological, economic, social, and cultural benefits to society.Conservation objectives are reached by restricting, regulating or prohibiting human activities in the protected area. Some common ways in which protected areas achieve conservation goals include:Enforcing regulations, including limits on extractive and polluting activities.Monitoring and managing species, ecosystems and landscapes to ensure their continued viability and integrity.Restoring degraded habitats or managing them for their long-term health and function.
What is a National Park?
A national park is a natural or semi-natural space designated to protect natural and cultural resources. National parks are established by governments to preserve a country's heritage, usually with the aim of promoting recreation and tourism.
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Determine the transconductance of a JFET biased at the origin given that gmo = 1.5 mS, VGs = -1 V, and VGscoff) = -3.5 V.
The transconductance of a JFET biased at the origin is determined.
The transconductance (gm) of a JFET (Junction Field-Effect Transistor) is a crucial parameter that characterizes its ability to convert changes in the gate-source voltage (Vgs) into variations in the drain current (Id). In this case, we are given the following values: gmo (transconductance at the origin) = 1.5 mS, VGs (gate-source voltage) = -1 V, and VGsoff (gate-source voltage at cutoff) = -3.5 V.
To determine the transconductance, we need to consider the relationship between the transconductance at the origin (gmo) and the gate-source voltage (Vgs). The transconductance can be expressed as:
gm = gmo * (1 - Vgs / VGsoff)
Substituting the given values, we have:
gm = 1.5 mS * (1 - (-1 V) / (-3.5 V))
Simplifying the equation:
gm = 1.5 mS * (1 + 1/3.5)
gm = 1.5 mS * (1.286)
gm = 1.929 mS
Therefore, the transconductance of the JFET biased at the origin is approximately 1.929 mS.
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Eight encoders were given a typing test, and the times (in minutes) to complete the test were as follows: 8, 12, 15, 14, 19, 21, 24, 38. What is the mean?.
Answer:
18.875 or 19 words per minute if rounded to the nearest minute.
Step-by-step explanation:
8 + 12 + 15 + 14 + 19 + 21 + 24 + 38 = 151
There are 8 numbers. Divide 151 by 8
18.875
Please Help Im Doing A Test And Really Need The Answer!
Please no fake answer for points
Answer:
The last one (16+20+3+8)
Step-by-step explanation:
add up all the sides not including the 3 inside
Answer:
(16+20+3+8)
Step-by-step explanation:
The perimeter is the measurement on the outside of the shape.
so (3+16+20+8) = 47
how to multiply matrices with different dimensions
The number of columns in the first matrix must equal the number of rows in the second matrix in order to multiply matrices with different dimensions.
First, jot down each matrix's dimensions. Let's imagine, for illustration, that we have a matrix A that is 2 by 3 and a matrix B that is 3 by 4. Create a new matrix C with the dimensions 2x4 in step 2. This is what the multiplication will ultimately produce.3. Determine the dot product of the corresponding row in matrix A and the corresponding column in matrix B for each element in matrix C.
4: The final response is matrix C, which is the union of the 2x3 matrix A and the 3x4 matrix B.
Therefore, the result is a 2x4 matrix, which is produced by taking the dot product of the rows and columns of matrix A and matrix B.
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Simplify by dividing
Answer: -27/40
Step-by-step explanation:
m<6 =
A. 53 degrees
B. 100 degrees
C. 127 degrees
D. 130 degrees
Tamara purchased 31 cases of tile to use on her bathroom floors .she used 17 cases in her upstairs bathroom and the rest in her downstairs bathroom.write an equation to express how many cases in her upstairs bathroom (i need the answer and the work of how you found that answer)
if m<3=135 find m<7 help please
Answer:
\( \fbox{m∠7 = 135°} \)
Step-by-step explanation:
Given a transversal that intersects a set of parallel lines, various angles are formed.
When given this situation in geometry, these angles have different names and statements (primarily theorems) which justify their relationship.
There are 8 primary types of possible angles of parallel lines including:
Alternate InteriorAlternate ExteriorSame-Side (Consecutive) InteriorSame-Side (Consecutive) ExteriorCorresponding AnglesVertical AnglesSupplementary AnglesLinear Pair________________________________
According to what is given in the problem, we know that:
m∠3 = 135°.
________________________________
To solve for m∠7, we must identify the relationship that ∠3 and ∠7 have.
________________________________
Here is the solution in proof form:
_______________
Statement | Reason
m∠3 = 135° | Given
m∠3 ≅ m∠5 | Vertical Angles
m∠5 ≅ m∠7 | Corresponding Angles Theorem
m∠3 ≅ m∠7 | Transitive Property of Equality
m∠7 = 135° | Definition of Congruent Angles
What is the area of the triangle shown below?
5
5
8
units2
Answer:
your answer is 12 units
Step-by-step explanation:
I hope it helps
What is the answer to
5 - ( - 12 )
Answer: 17
Step-by-step explanation:
since there are two minuses, you change them to a plus and add, ending up with 5+12 to get 17
suppose a worker's completion time is 0.4 standard deviations above the mean. what is the worker's percentile score? round your result to one decimal place.
The following is how to determine a worker's percentile score if their completion time is 0.4 standard deviations above the mean. To determine a worker's percentile score, we will use the standard normal distribution table.
The formula for converting an X-value into a Z-score is: X - μ / σ = Z Where: X is the observed value of a variable.μ is the mean of the variable.σ is the standard deviation of the variable. Z is the z-score. To calculate the z-score, we'll use the formula: X - μ / σ = 0.4 standard deviations above the mean Z = (X - μ) / σ = 0.4 .The percentile score of the worker is the proportion of the standard normal distribution below this z-score. Using the standard normal distribution table, we can find the proportion that corresponds to the z-score of 0.4. We look for the value in the table that is closest to 0.4 and locate the proportion in the z-score column. For the value of 0.4, we get 0.6554.The percentile score of the worker is 0.6554 or 65.54 percent. We used the standard normal distribution table to calculate a worker's percentile score. The first step was to convert the observed value of a variable to a z-score using the formula: X - μ / σ = Z .The worker's completion time was 0.4 standard deviations above the mean. This means that the worker's completion time is greater than the mean by 0.4 times the standard deviation. Using the formula above, we can calculate the z-score. The standard deviation for the worker's completion time was not given, so we used the standard deviation of the distribution. We were not given the mean, so we could not calculate the z-score directly. Instead, we calculated the z-score as follows: Z = (X - μ) / σ = 0.4. We can use this equation to find the worker's completion time if we know the mean and standard deviation. The standard normal distribution table was used to calculate the worker's percentile score. We looked up the value that was closest to 0.4 in the z-score column. The proportion in the table that corresponds to a z-score of 0.4 is 0.6554 or 65.54%.The percentile score of the worker is 65.54%.The worker's percentile score was 65.54%. A percentile score is the proportion of a distribution that is below a certain point. We used the standard normal distribution table to calculate the proportion that corresponds to the worker's z-score of 0.4.
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find the general solution of the given higher-order differential equation. d 4y dx4 − 2 d 2y dx2 − 8y = 0
he required solution is \(y=c_1e^{2x}+c_2e^{-2x}+c_3\sqrt2\cos(\sqrt2x)+c_4\sqrt2\sin(\sqrt2x)\)
where \(c_1,c_2,c_3\) and \(c_4\) are constants.
Let’s assume the general solution of the given differential equation is,
y=e^{mx}
By taking the derivative of this equation, we get
\(\frac{dy}{dx} = me^{mx}\\\frac{d^2y}{dx^2} = m^2e^{mx}\\\frac{d^3y}{dx^3} = m^3e^{mx}\\\frac{d^4y}{dx^4} = m^4e^{mx}\\\)
Now substitute these values in the given differential equation.
\(\frac{d^4y}{dx^4}-2\frac{d^2y}{dx^2}-8y\\=0m^4e^{mx}-2m^2e^{mx}-8e^{mx}\\=0e^{mx}(m^4-2m^2-8)=0\)
Therefore, \(m^4-2m^2-8=0\)
\((m^2-4)(m^2+2)=0\)
Therefore, the roots are, \(m = ±\sqrt{2} and m=±2\)
By applying the formula for the general solution of a differential equation, we get
General solution is, \(y=c_1e^{2x}+c_2e^{-2x}+c_3\sqrt2\cos(\sqrt2x)+c_4\sqrt2\sin(\sqrt2x)\)
Hence, the required solution is \(y=c_1e^{2x}+c_2e^{-2x}+c_3\sqrt2\cos(\sqrt2x)+c_4\sqrt2\sin(\sqrt2x)\)
where \(c_1,c_2,c_3\) and \(c_4\) are constants.
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Find the new price for the markup given. Round to the nearest cent if neccessary 145.95 discounted 20%
Answer:
29.2
Step-by-step explanation:
how could you determine the number of feet per second a squirrel can run?
We are asked that how could we determine the number of feet per second a squirrel can run?
Recall that rate (also known as speed) is given by
\(r=\frac{d}{t}\)Where d is the distance in feet.
t is
In fastpitch softball there is a circle drawn in chalk around the pitcher's mound. If the pitches within the circle with the ball, it indicates that the last play had ended. The chalk circle around the pitcher's mound has a diameter of 16 ft. What is the area of the pitchers circle?
The area of the pitcher's circle is 200. 96 ft²
How to determine the areaThe formula that is used for calculating the area of a given circle is expressed with the equation;
A = πr²
This is so, such that the parameters of the formula are expressed as;
A is the area of the circler is the radius of the circleπ takes the constant value of 3.14From the information given, we have that;
Diameter = 16ft
Then,
radius = d/2
radius = 16/2 = 8ft
Substitute the value, we have;
Area = 3.14 × 8²
Find the square and substitute the value, we have;
Area = 200. 96 ft²
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help please will give brainliest PLEASE
Answer:
I think the answer is b the answer is b
Answer:
The answer is really and surely B
A marketing consultant created a linear regression model to predict the number of units sold by a client based on the amount of money spent on marketing by the client. Which of the following is the best graphic to use to evaluate the appropriateness of the model
a) a dotplot
b) a histogram
c) a residual plot
d) a boxplot
e) a bar chart
Answer:
C
Step-by-step explanation:
The residual plot give you the most detailed graphical appropriatness
A plot or graph shows the relationship between related variables.
The best graphic to use is the residual plot.
The best graph to plot a linear regression is the scatter plot, because it shows a clear relationship between the variables that are being compared.
From the list of given options, we can say that the residual plot is the best plot to use by the consultant.
This is because, the residual plot is a form of scatter plot that shows the difference between the observed value and the actual value.
In this case, the observed value would be the number of units sold, while the actual value would be the expected number of units to be sold.
Hence, option (c) answers the question.
See attachment for an illustration of the residual plot
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1. In a radical engine the moving parts have a total moment of inertia of 1 kg m 2
, and this is concentrated in the plane of the single crankpin. The engine is directly connected to an air-screw of moment of inertia 18 kg m 2
, by a hollow shaft having outer and inner diameters of 80 mm, and 35 mm, and a single effective length of 0.30 m. The stiffness of the crank-throw alone is 2.5×10 4
Nm/rad. Estimate the natural frequency of torsional vibration of the custen What percentage is involved if the air-screw mass is assumed to be infinite. G=83000 N/mm 2
HINT The stiffness of the crank-throw may be reduced to an equivalent length of shaft at the same diameter as the engine using q
1
= q 1
1
+ q 2
1
The percentage change in frequency is 0%.Hence, the natural frequency of torsional vibration of the custen is given by f = 25.7 / L₀^(1/2) and the percentage change in frequency is 0%.
We are given that:
Total moment of inertia of moving parts = I = 1 kgm²
Moment of inertia of air-screw = I = 18 kgm²
Outer diameter of hollow shaft = D₀ = 80 mm
Inner diameter of hollow shaft = Dᵢ = 35 mm
Length of hollow shaft = L = 0.30 m
Stiffness of the crank-throw = K = 2.5 × 10⁴ Nm/rad
Shear modulus of elasticity = G = 83000 N/mm²
We need to calculate the natural frequency of torsional vibration of the custen.
The formula for natural frequency of torsional vibration is: f = (1/2π) [(K/L) (J/GD)]^(1/2)
Where, J = Polar moment of inertia
J = (π/32) (D₀⁴ - Dᵢ⁴)
The formula for equivalent length of hollow shaft is given by:
q₁ = q₁₁ + q₁₂
Where, q₁₁ = (π/32) (D₀⁴ - Dᵢ⁴) / L₁q₁₂ = (π/64) (D₀⁴ - Dᵢ⁴) / L₂
L₁ = length of outer diameter
L₂ = length of inner diameter
For the given shaft, L₁ + L₂ = L
Let L₁ = L₀D₀ = D = 80 mm
Dᵢ = d = 35 mm
So, L₂ = L - L₁= 0.3 - L₀...(1)
For the given crank-throw, q₁ = (π/32) (D⁴ - d⁴) / L, where D = 80 mm and d = 80 mm
Hence, q₁ = (π/32) (80⁴ - 35⁴) / L
Therefore, q₁ = (π/32) (80⁴ - 35⁴) / L₀...(2)
From the formula for natural frequency of torsional vibration, f = (1/2π) [(K/L) (J/GD)]^(1/2)
Substituting the values of K, J, G, D and L from above, f = (1/2π) [(2.5 × 10⁴ Nm/rad) / (L₀) ((π/32) (80⁴ - 35⁴) / (83000 N/mm² (80 mm)³))]^(1/2)f = (1/2π) [(2.5 × 10⁴ Nm/rad) / (L₀) (18.12)]^(1/2)f = 25.7 / L₀^(1/2)...(3)
Now, if we assume that the air-screw mass is infinite, then the moment of inertia of the air-screw is infinite.
Therefore, the formula for natural frequency of torsional vibration in this case is:
f = (1/2π) [(K/L) (J/GD)]^(1/2)Substituting I = ∞ in the above formula, we get:
f = (1/2π) [(K/L) (J/GD + J/∞)]^(1/2)f = (1/2π) [(K/L) (J/GD)]^(1/2)f = 25.7 / L₀^(1/2)
So, in this case also the frequency is the same.
Therefore, the percentage change in frequency is 0%.Hence, the natural frequency of torsional vibration of the custen is given by f = 25.7 / L₀^(1/2) and the percentage change in frequency is 0%.
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simple interest is computed by finding the product of the principal amount, p, and the interest rate, r, and the time t.translate each sentence into an formula
You have that simple interest is computed by the multiplication of p (principal amount), r (interest rate) and t (time).
The previoues sentence can be written algebraically as follow:
I = p x r x t you only have to multiply each factor
where I is the letter for simple interest.
A triangle has angle measurements of 72°, 101°, and 7° What kind of triangle is it?
Answer:
it is a scalene triangle coz all angels are different.
Ples help smart redstoners
A plane flew 3,100 kilometers at a speed of 775 kilometers per hour. How many hours was the flight?
Speed = StartFraction distance Over time EndFraction
The flight was
O 4
O 13
O 25
O 44
hours long.
Answer:
4
Step-by-step explanation:
salim had 24 homework problems he completed 12 problems during lunch then he completed 7 more after school
Answer:
So how many he has left to do???
I think Salim has to finish 5 more problems
Step-by-step explanation:
Find the area of this triangle. Round to
the nearest tenth.
17 m
35°
15 m
[? ]m2
Answer:
32m²
Step-by-step explanation:
thanks me later ,correct me if I'm wrong
Answer: 73.1
Step-by-step explanation:
yea
Please find what the value of x and y is!!!
Answer:
x = 3; y = 2
Step-by-step explanation:
You would just set each side equal to its opposite so for x, it'll be like:
4x+6=7x-3
and for y:
4y-3=3y+1
I attached my work below as well to help you.
Check all that apply F(x) = 3/x(x-5)(x+1)
Answer:
Options A, D, and E (0, 5, -1)
Step-by-step explanation:
A vertical asymptote is located where the denominator is equal to 0. Therefore, x=0, x=5, and x=-1 are all vertical asymptotes.
Nora is flying a kite, holding her hands a distance of 3 feet above the ground and
letting all the kite's string play out. She measures the angle of elevation from her
hand to the kite to be 23. If the string from the kite to her hand is 135 feet long, how
many feet is the kite above the ground? Round your answer to the nearest tenth of a
foot if necessary.
Answer:
\(55.7 feet\)
Step-by-step explanation:
\(h=\sin{\left(23\right)\times135}\)
\(\sin{23}\approx0.39\)
\(h=0.39\times135=52.65\left(feet\right)\\)
\(H=h+3\)
\(=52.65+3\)
\(=55.65\left(feet\right)\)
\(55.65\ feet\approx55.7\ feet\)
I hope this helps you
:)
The table below shows Khalil's earnings on the job. Time (hours) Time (hours) Earnings (dollars) Earnings (dollars) 13 13 $ 274.30 $274.30 16 16 $ 337.60 $337.60 22 22 $ 464.20 $464.20 What is the constant of proportionality between earnings and time in hours?
The constant of proportionality between earnings and time in hours is equal to 21.1.
How to determine the constant of proportionality?In Mathematics, a proportional relationship is a type of relationship that generates equivalent ratios and it can be modeled or represented by the following mathematical expression:
y = kx
Where:
x represents the time (hours).y represents the earnings (dollars).k represents the constant of proportionality.In order to have a proportional relationship and equivalent ratios, the variables x and y must have the same constant of proportionality.
Next, we would determine the constant of proportionality (k) as follows:
y = kx
Constant of proportionality (k) = y/x
Constant of proportionality (k) = 274.30/13 = 337.60/16 = 464.20/22
Constant of proportionality (k) = 21.1
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Albert had a goal of saving $80. He saved 115% of his goal. How much money did Albert save
Answer:
$92
Step-by-step explanation: