The scale the architect used is 1:850. This means that 1 unit on the drawing represents 850 units in real life
The architect's plan shows the bridge as 50 centimeters, which is 0.5 meters. The actual length of the bridge is 425 meters. Let's use "x" to represent the scale of the architect's drawing. The scale can be defined as the ratio of the length of the drawing to the actual length. Thus, we can write:
x = length of drawing / actual length
Substituting the given values, we have:
x = 0.5 meters / 425 meters
To simplify, we have:
x = 1/850
Therefore, the scale the architect used is 1:850. This means that 1 unit on the drawing represents 850 units in real life.
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Using long division what is the quotient of this expression?
\(3x^4-2x^3-x-4}{x^2+2}\)
A. \(3x^2 -2x -6 + \frac{3x+8}{x^2+2}\)
B. \(3x^2 +2x - \frac{5x-8}{x^2+2}\)
C. \(3x^2-2x-5+ \frac{3x+6}{x^2+2}\)
D. \(3x^2+2x+\frac{3x-4}{x^2+2}\)
Using long division, the quotient of the given expression is A.
Given is a polynomial division.
We have to find the quotient using long division.
Numerator is 3x⁴ - 2x³ + 0x² - x - 4 which is divided by x² + 2.
When both are divided, as normal division,
3x⁴ = 3x² × x²
So the first term of the quotient is 3x².
3x² (x² + 2) = 3x⁴ + 6x²
Remainder is,
3x⁴ - 2x³ + 0x² - x - 4 - (3x⁴ + 0x³ + 6x²) = -2x³ - 6x² - x - 4
Now, -2x³ = -2x (x²)
So the second term of the quotient is -2x.
-2x (x² + 2) = -2x³ - 4x
Remainder is,
-2x³ - 6x² - x - 4 - (-2x³ - 4x) = -6x² + 3x - 4
Now, -6x² = -6 (x²)
So the third term of the quotient is -6.
-6 (x² + 2) = -6x² - 12
Remainder is,
-6x² + 3x - 4 - (-6x² - 12) = 3x + 8
So,
Dividend = (Quotient)(divisor) + Remainder
3x⁴ - 2x³ - x - 4 = (3x² - 2x - 6)(x² + 2) + (3x + 8)
(3x⁴ - 2x³ - x - 4) / (x² + 2) = (3x² - 2x - 6) + [(3x + 8) / (x² + 2)]
Hence the correct option is A.
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use propositional logic to prove that the argument is valid. 13. (A∨B′)′∧(B→C)→(A′∧C) 14. A′∧∧(B→A)→B′ 15. (A→B)∧[A→(B→C)]→(A→C) 16. [(C→D)→C]→[(C→D)→D] 17. A′∧(A∨B)→B
Propositional Logic to prove the validity of the arguments
13. (A∨B′)′∧(B→C)→(A′∧C) Solution: Given statement is (A∨B′)′∧(B→C)→(A′∧C)Let's solve the given expression using the propositional logic statements as shown below: (A∨B′)′ is equivalent to A′∧B(B→C) is equivalent to B′∨CA′∧B∧(B′∨C) is equivalent to A′∧B∧B′∨CA′∧B∧C∨(A′∧B∧B′) is equivalent to A′∧B∧C∨(A′∧B)
Distributive property A′∧(B∧C∨A′)∧B is equivalent to A′∧(B∧C∨A′)∧B Commutative property A′∧(A′∨B∧C)∧B is equivalent to A′∧(A′∨C∧B)∧B Distributive property A′∧B∧(A′∨C) is equivalent to (A′∧B)∧(A′∨C)Therefore, the given argument is valid.
14. A′∧∧(B→A)→B′ Solution: Given statement is A′∧(B→A)→B′Let's solve the given expression using the propositional logic statements as shown below: A′∧(B→A) is equivalent to A′∧(B′∨A) is equivalent to A′∧B′ Therefore, B′ is equivalent to B′∴ Given argument is valid.
15. (A→B)∧[A→(B→C)]→(A→C) Solution: Given statement is (A→B)∧[A→(B→C)]→(A→C)Let's solve the given expression using the propositional logic statements as shown below :A→B is equivalent to B′→A′A→(B→C) is equivalent to A′∨B′∨C(A→B)∧(A′∨B′∨C)→(A′∨C) is equivalent to B′∨C∨(A′∨C)
Distributive property A′∨B′∨C∨B′∨C∨A′ is equivalent to A′∨B′∨C Therefore, the given argument is valid.
16. [(C→D)→C]→[(C→D)→D] Solution: Given statement is [(C→D)→C]→[(C→D)→D]Let's solve the given expression using the propositional logic statements as shown below: C→D is equivalent to D′∨CC→D is equivalent to C′∨DC′∨D∨C′ is equivalent to C′∨D∴ The given argument is valid.
17. A′∧(A∨B)→B Solution: Given statement is A′∧(A∨B)→B Let's solve the given expression using the propositional logic statements as shown below: A′∧(A∨B) is equivalent to A′∧BA′∧B→B′ is equivalent to A′∨B′ Therefore, the given argument is valid.
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Which equation below represents a horizontal line?
x = 4
y = x – 0
y = x + 0
y = 4
Answer:
x=4
Step-by-step explanation:
this should be the answer hope it helps
the perimeter of a stop sign (octagon) is 64 inches,what is the lenght of each side?
Determine whether the ordered pair(3/4,1/28) is a Solution of the system x+ 7y=1 and 5x+7y=4
Answer either yes or no
Answer:
no
Step-by-step explanation:
beacuse this asnwer has no solution
Victor and Kelsey have identical sandwiches. Victor eats \frac{2}{5} of his sandwich. If Kelsey eats \frac{15}{8} as much as Victor does, what fraction of her sandwich did she eat?
Answer:10/5
Step-by-step explanation:
Please help!!! I’ll mark brainlist and 5 stars!!
Quesuon Help
An exponential function has an initial value of 500 and a decay rate of 15%. Compare the average rate of change for the interval 0<x<4 to the average rate for the
interval 4<x<8. What do you think will happen to the rate of change for intervals beyond x = 8? Explain.
For 0<x<4, the average rate of change will be
(Round to the nearest integer as needed. )
The slope of the straight line connecting the break's ends to the function's diagram.
For 0 < x < 4 will be -60
For 4 < x < 8 will be -31
What is meant by exponential function?The mathematical formula f (x) = \($$a^{x\) denotes an exponential function. a constant known as the function's base and a variable called x are present. The transcendental number e, roughly equivalent to 2.71828, is the most frequent exponential-function base.
When a positive constant other than 1 is raised to a variable exponent, the function is said to be exponential. Solving at a certain input value yields the evaluation of a function. If you know the growth rate and the starting point, you can find an exponential model.
We have to use the knowledge of functions to describe the average rates of each one of them, so:
For 0 < x < 4 will be -60
For 4 < x < 8 will be -31
It is a measurement of how much the function changed for one person on average throughout that interval. It results from the slope of the straight line connecting the break's ends to the function's diagram.
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8x + y = 20
x - 2y = -6
Answer: the answer is
Step-by-step explanation:
20+30+20.13 what is it
Answer:
70.13
Step-by-step explanation:
A nurse mixes 60 cc of a 70% saline solution with a 20% saline solution to produce a 25% saline solution. How much of the 20% solution should he use
Help me please !!!!!!!!!!!
Answer:
option 1
Step-by-step explanation:
\(Area = \frac{3}{4} \times \frac{5}{6} = \frac{15}{24}\)
An automobile with a mass of 1200 kg accelerates at a rate of 3.0 m/s2 in the forward direction. What is the net force acting on the automobile?
The net force acting on the automobile is 3600N
The acceleration of an object is directly proportional to the net force acting on it.
The acceleration of an object also depends upon its mass.
Acceleration (a) = net force (F) / mass (m)
a = F / m
Given that; a = 3 m/s², m = 1200 kg, hence:
3 = F / 1200
F = 3600N
The net force acting on the automobile is 3600N
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The attendance office creates a bar graph to display the number of students tardy throughout the month. What is the range of the number of students tardy during the first five months of the year?
Answer:
60
Step-by-step explanation:
To find the range you subtract the highest and lowest value
The highest value on this graph is 105 from the month of May and the lowest value is 45 from the month of March.
When you do 105-45 you get 60 which is the range
Jennifer made these measurements on ABC,BC must be-?
Answer:
between 10 and 12
Step-by-step explanation:
Given the measure of angles:
m∠B = 70°
m∠C = 60°
m∠A = 50°
We know m∠B = 70° because the sum of interior angles in a triangle is equal to 180°.Following this information, since the side lengths are directly proportional to the angle measure they see:
Angle B is the largest angle. Therefore, side AC is the longest side of the triangle since it is opposite of the largest angle.
Angle C is the smallest angle, so the side AB is the shortest side.
Therefore, side BC must be between 10 and 12 inches.
What is the sufsce area with a diamater of 8. 2 ft
Area:
Approximately 211.24 square feet
Explanation:
Im going to assume you are asking for the surface area of a sphere with a diameter of 8.2ft. The equation to find this is: \(A = 4\pi r^2\)
Firstly, we need to convert the diameter to the radius. The diameter is always twice the length of the radius, so the radius must be 4.1ft
Plug this value in:
\(A = 4\pi (4.1)^2\\A = 4\pi(16.81)\\A = 211.24\)
Eric added up on a number line to find 4 fifths and 5 tenths
The value of 4 fifths and 5 tenths on number line is 13/10.
What is a number line?Integers are arranged at equal intervals along horizontal straight lines called number lines. A number line can be used to represent every number in a series. The endpoints of this line go on forever. Some will have a defined beginning and end. It refers to those as closed number lines. Number lines might be alternatively left empty or blank. A number ladder is a vertical number line.
Given;
4 fifths and 5 tenths
Now,
=4/5+5/10
=4/5+1/2
=8+5/10
=13/10
Therefore, by number line addition the answer will be 13/10.
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1. what legal description is required in a land survey for a plat plan? 2. what are metes and bounds? sketch an example. 3. what is the rectangular system and how is it used? 4. what is the difference between a plot plan, plat plan and survey plan? provide sketch examples.
1 ) The location of a specific piece of real estate may be determined with accuracy using a legal description of the property. This often employs a combination of alphabetical abbreviations and numbers to find the land and is based on current township grids.
The legal description is a completely unique identification for properties, unlike a property address. It must close, which means the lines describing the start and conclusion must finally come together, in order to be legitimate.
2 ) Metes are a segment of the property line that are established by calculating the separation between two places. It may also establish the orientation of the property plot.
The boundary of a property is referred to as its bounds. Bounds are frequently used to outline larger-scale features.
3 ) A surveying technique called the Public Land Survey System (PLSS) is used to divide real estate into specific plots. It is furthermore frequently called the Rectangular Survey System.
4) A site plan, also known as a plot plan, is a form of drawing used by architects, landscape architects, urban planners, and engineers to represent the current and desired conditions for a specific area, usually a parcel of land that is to be altered.
A land survey plan is a specific map of a piece of land that is made after carefully inspecting and measuring the area. It establishes and defines the positions of boundaries, buildings, physical features, and other important spatial elements.
A plat plan is a scaled-down cadastral map that depicts the divisions of a plot of land.
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toddler triplets whose names are red, green and blue each have a coat whose colour is given by their name, but they aren't clear on which coat belongs to which of them. when they go out, red chooses a coat at random among the three coats, green chooses a coat at random among the remaining two coats and blue is left to take the remaining coat. how many ways are there for exactly one of the toddler triplets to end up with their coat?
Answer:
Step-by-step explanation:
A way for one of the toddler triplets to end up with their coat is if the other two toddler triplets each get one another coat.
making it a 33% chance of one of the toddler triplets to end up with their own coat.
100% divided by 3 = 0.33
There is exactly a 33% chance for one of the toddler triplets to end up with their coat.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Number of coat = 3
Red, green, and blue.
Now,
Each of them picks up a coat at random and goes out.
The chance of each of them getting their own coat.
= 1/3 x 100
= 33%
Thus,
There is a 33% chance that one of the toddler triplets ends up with their coat.
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The rectangle below has an area of x^2-6x-7 sq meters and a width of x-7 meters.
What expression represents the length of the rectangle?
Length=______ meters
Answer:
Length = ( x - 1 ) ( m)
Step-by-step explanation:
Area of rectangle is:
A(r) = l*w ( in m² ) where l is the length in m and w is the width in m
If we have: A(r) = x² - 6*x - 7 (m²), as an area of a rectangle, then we can factoring the equation, and get the rectangle dimensions, then:
x² - 6*x - 7 = ( x - 1 ) * ( x - 7 ) = area of the rectangle in m²
As problem statement establishes that ( x - 7 ) ( m) is the width, then
( x - 1 ) ( m) is the length
a. Given that f(x)=6x−16 where f(x)=y, define a function rule for f^−1.
f^−1(y)=
b. Given that g(u)=(2u+85/5)+13 where g(u)=v, define a function rule for g^−1.
g^−1(v)=
a. The function rule for f^−1 is: \(f^{-1} (y) = (y + 16)/6\)
b. The function rule for g^−1 is: \(g^{-1} (v) = (v - 30)/2\)
What is integral function?
A continuous counterpart of a sum, an integral is used to compute areas, volumes, and their generalizations. The method of computing an integral, known as integration, is one of calculus's two fundamental operations, the other being differentiation.
a. To find the function rule for \(f^{-1}\) we need to solve for x in terms of y using the given equation:
y = 6x - 16
First, we can add 16 to both sides of the equation:
y + 16 = 6x
Then, we can divide both sides by 6 to isolate x:
x = (y + 16)/6
Therefore, the function rule for f^−1 is:
\(f^{-1} (y) = (y + 16)/6\)
b. To find the function rule for \(g^{-1}\), we need to solve for u in terms of v using the given equation:
v = (2u + 85/5) + 13
First, we can simplify the expression in parentheses by multiplying 85/5:
v = (2u + 17) + 13
Then, we can subtract 13 from both sides of the equation:
v - 13 = 2u + 17
Next, we can subtract 17 from both sides:
v - 30 = 2u
Finally, we can divide both sides by 2 to isolate u:
u = (v - 30)/2
Therefore, the function rule for g^−1 is:
\(g^{-1} (v) = (v - 30)/2\)
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83-[29-{6 divided by 3 -(6-9 divided by 3 ) divided by 3 }]
The value of the expression is 55.
Step 1: Simplifying the innermost parentheses
Inside the innermost parentheses, we have the expression (6 - 9 ÷ 3). We need to divide 9 by 3 first, which gives us 3. Now we can subtract 3 from 6, resulting in (6 - 3) = 3. Therefore, the expression becomes 83 - [29 - {6 ÷ 3 - 3 ÷ 3}].
Step 2: Simplifying the division inside the curly braces
Within the curly braces, we have the expression 6 ÷ 3. Dividing 6 by 3 gives us 2. Substituting this value back into the expression, we have 83 - [29 - {2 - 3 ÷ 3}].
Step 3: Simplifying the division inside the curly braces (again)
Inside the curly braces, we have 3 ÷ 3. Dividing 3 by 3 gives us 1. Substituting this value back into the expression, we have 83 - [29 - {2 - 1}].
Step 4: Simplifying the subtraction inside the curly braces
Within the curly braces, we have the expression 2 - 1, which equals 1. Substituting this value back into the expression, we have 83 - [29 - 1].
Step 5: Simplifying the subtraction inside the square brackets
Inside the square brackets, we have 29 - 1, which gives us 28. Substituting this value back into the expression, we have 83 - 28.
Step 6: Performing the subtraction
Finally, we subtract 28 from 83, resulting in 55.
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A television screen has a length of 33 ft and a width of 45 ft. A second television is similar to the first television. The second television is 51 ft. wide. What is the length of the second television? (Decimal Answer)
Length of the second television = ____ft
Answer:1683
Step-by-step explanation:33 ft x 51 ft = 1683
A string has a length of 80 cm. It is cut into pieces in the ratio 1: 4: 5. Calculate the length of the longest piece.
First, we need to find the total number of parts in the ratio 1:4:5:
1 + 4 + 5 = 10
This means that the string is divided into 10 equal parts. To find the length of each part, we divide the total length of the string by the number of parts:
80 cm ÷ 10 = 8 cm
Now, we can find the length of the longest piece, which is 5 times the size of each part:
8 cm x 5 = 40 cm
Therefore, the length of the longest piece is 40 cm.
Evaluate the expression −t/u+vw , where t = 2, u=−2/3 , v=−1 , and w=−1/3 .3 1/31 2/3−2 2/3
Answer:
The answer is 3 1/3
The value of the expression −t/u+vw is 3 1/3 after pluggin the values of t, u, v, and w in the expression.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that,
The expression is:
= −t/u+vw
The values of t = 2, u=−2/3 , v=−1 , and w=−1/3
After pluggin the values of t, u, v, and w in the above expression we get:
= -2/(-2/3) + (-1)(-1/3)
The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that is +, -, ×, and ÷.
= 3 + 1/3
= 3 1/3 (in mixed fraction)
Thus, the value of the expression −t/u+vw is 3 1/3 after pluggin the values of t, u, v, and w in the expression.
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3 1/3
p=2w + 2l for l= 5 and w=7
Answer:
p=24
Step-by-step explanation:
p=2(7)+2(5)
p=14+10
pp=24
Which is the graph of y = RootIndex 3 StartRoot x EndRoot?
Given:
The equation is:
\(y=\sqrt[3]{x}\)
To find:
The graph of the given equation.
Solution:
We have,
\(y=\sqrt[3]{x}\)
The table of values is:
x y
-8 -2
-1 -1
0 0
1 1
8 8
Plot these points on a coordinate plane and connect them by a free hand curve as shown in the below graph.
Answer:
D
Step-by-step explanation:
edge 2020
A, b and c can do a piece of work in 24, 30 and 40 days respectively. They start the work together but c leaves 4 days before the completion of the work. In how many days is the work done?.
A, b and c can do a piece of work in 24, 30 and 40 days respectively. the work is completed in 13 days.
Let's calculate the work done by each person per day:
A completes 1/24 of the work per day.
B completes 1/30 of the work per day.
C completes 1/40 of the work per day.
Let's assume the total work is represented by "W".
When all three, A, B, and C, work together, their combined work rate per day is:
1/24 + 1/30 + 1/40 = (5 + 4 + 3) / 120 = 12/120 = 1/10
This means that when all three work together, they complete 1/10 of the total work per day.
Now, let's calculate the number of days it takes for them to complete the work. Let's represent this number of days by "D".
Since C leaves 4 days before the completion of the work, the remaining work is 1 - 1/10 = 9/10.
We can set up the equation:
(D - 4) * (1/10) = 9/10
Simplifying the equation:
D - 4 = 9
D = 9 + 4
D = 13
Therefore, the work is completed in 13 days.
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How many decimeters are in 3.5 dekameters? Use the metric table to help answer the question.
35 decimeters
350 decimeters
3,500 decimeters
35,000 decimeters
it’s 350 or B. hope this helps! :)
shirabi spent $208 on a sewing machine to make purses. she spends a total of $10 on thread, fabric, and accessories for each purse and plans to charge $36 for each purse. the equation represents her break-even point, when x represents the number of purses sold. 208 10x
Shirabi needs to sell a minimum of 20 purses in order to reach her break-even point, where her total revenue equals her total costs.
To find the break-even point, we need to determine the number of purses that Shirabi needs to sell in order to cover her costs and not incur any loss. The equation representing her break-even point is given as:
208 + 10x
Here, 208 represents the cost of the sewing machine, and 10x represents the total cost of thread, fabric, and accessories for each purse, multiplied by the number of purses sold.
To find the break-even point, we need to set the equation equal to zero:
208 + 10x = 0
Now, let's solve for x:
10x = -208
x = -208/10
x = -20.8
Since the number of purses sold cannot be negative, we can disregard the negative solution. Therefore, Shirabi's break-even point is when she sells 20 purses.
Shirabi needs to sell a minimum of 20 purses in order to reach her break-even point, where her total revenue equals her total costs. Selling fewer than 20 purses would result in a loss, while selling more than 20 purses would generate a profit.
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