The new weight of wrestler 1 is w_{(n+2)/2} = w_{(n+3)/2} - 1
The new weight of wrestler 2 is w_{(n+4)/2} = w_{(n+3)/2} + 2.
What are the weights of the wrestlers?Let's suppose the weights of the wrestlers before the two new wrestlers joined the team are arranged in increasing order as follows:
w_1 ≤ w_2 ≤ w_3 ≤ ... ≤ w_n
where;
n is the number of wrestlers before the two new wrestlers joined, and w_i represents the weight of wrestler i.Since the mean weight remains unchanged, we have:
(w_1 + w_2 + w_3 + ... + w_n) / n = (w_1 + w_2 + w_3 + ... + w_n + x + y) / (n+2)
where x and y are the weights of the two new wrestlers.
Simplifying the above equation, we get:
2(w_1 + w_2 + w_3 + ... + w_n) = nw_1 + nw_2 + nw_3 + ... + nw_n + 2x + 2y
which can be further simplified as:
2(w_1 + w_2 + w_3 + ... + w_n) - 2nw_n = (n-2)w_1 + (n-2)w_2 + (n-2)w_3 + ... + (n-2)w_{n-1} + 2x + 2y
Since the median weight increases by 3 pounds, the new median weight is the weight of the (n+3)/2-th wrestler.
where;
n+2 is the total number of wrestlers after the two new wrestlers joined.We can express this in terms of the weights of the original wrestlers and the weights of the new wrestlers as follows:
If n+2 is even, then the new median weight is the average of the (n+2)/2-th and (n+4)/2-th weights.
If n+2 is odd, then the new median weight is the (n+3)/2-th weight.
In either case, we have:
w_{(n+2)/2} + w_{(n+4)/2} = 2(w_{(n+3)/2} - 3)
Substituting the weights of the original wrestlers and the new wrestlers using the equation we derived earlier, we get:
[(n-1)w_{(n+2)/2} + (n-1)w_{(n+4)/2} + 2x + 2y] + [(n-1)w_{(n+2)/2} + (n-1)w_{(n+4)/2}] = 2[(n+2)w_{(n+3)/2} - 6]
Simplifying and rearranging the terms, we get:
4w_{(n+3)/2} - 2w_{(n+2)/2} - 2w_{(n+4)/2} = x + y - 3
Substituting x + y = 2w_{(n+3)/2} - 3, we get:
w_{(n+4)/2} - w_{(n+2)/2} = 3 - w_{(n+3)/2}
Since the weights are arranged in increasing order, we have:
w_{(n+2)/2} ≤ w_{(n+3)/2} ≤ w_{(n+4)/2}
Therefore, the only possible solution is:
w_{(n+2)/2} = w_{(n+3)/2} - 1
w_{(n+4)/2} = w_{(n+3)/2} + 2
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C
M
A
Which set of given
information does not
prove
A CAMA COM?
Based on the information, it should be noted that the theorem that is not applicable and doesn't prove the relationship is A. MCA = MCO, CAM = COM
How to explain the informationThe triangles are congruent if their two sides and included angles are identical to each other, according to the side-angle-side (SAS) theorem.
You cannot use any theorem along with option A. For B, you can use SAS. For option C, you can use SAS. For option D, you can use SSS. For option D, you can use ASA
Therefore, based on the information, the correct option is A.
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a researcher interested in the effects of sleep deprivation on reaction time randomly assigns participants to either a sleep deprivation group or a control group. after a night in the sleep laboratory, reaction times for all participants are obtained. what is the null hypothesis?
The null hypothesis would be, "sleep deprivation does not affect reaction time."
A null hypothesis is an assumption in which researchers claim that there is no relationship between two factors. The hypothesis is used to examine whether the research hypothesis is true or false. For instance, in this study, the researcher would hypothesize that sleep deprivation affects reaction time.
The null hypothesis would be, "sleep deprivation does not affect reaction time."
Hence, the null hypothesis for the researcher who is interested in the effects of sleep deprivation on reaction time, and who randomly assigns participants to either a sleep deprivation group or a control group is "Sleep deprivation does not affect reaction time."
This would be tested using statistical tests like t-test and ANOVA.
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How did you solve this problem. I would like to know please. Thank you
Suppose the line segments that represent Wayne Street and George Street
are reflected in the y-axis. Draw the images. Are they parallel? Explain.
If the slopes are equal, the reflected line segments are parallel.
When a line segment is reflected in the y-axis, its image is formed by reflecting each point on the segment across the y-axis.
This means that the x-coordinate of each point is negated, while the y-coordinate remains the same.
To draw the images of Wayne Street and George Street, we need to know their coordinates.
Let's assume that Wayne Street runs from (2, 3) to (6, 5), while George Street runs from (-1, -2) to (-5, -4).
When we reflect Wayne Street in the y-axis, we negate the x-coordinates and keep the y-coordinates the same.
This gives us the image of Wayne Street, which runs from (-2, 3) to (-6, 5).
Similarly, when we reflect George Street in the y-axis, we get the image of George Street, which runs from (1, -2) to (5, -4).
We need to consider the slopes of the original segments and their images.
The slope of Wayne Street is (5-3)/(6-2) = 1/2, while the slope of George Street is (-4-(-2))/(-5-(-1)) = -1/2.
When we reflect a line segment in the y-axis, its slope is negated.
So,
The slope of the image of Wayne Street is -1/2, while the slope of the image of George Street is 1/2.
Therefore, the images of Wayne Street and George Street are not parallel, since their slopes are opposite.
In fact, they are perpendicular to each other, since the product of their slopes is (-1/2) x (1/2) = -1/4, which is equal to -1 (the negative reciprocal of each other).
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The circumference of a circle is 81.64 inches. What is the circle's radius? use 3.14 for pi
Answer:
13 cm
Step-by-step explanation:
c = Circumference=pid= 81.64 To find the radius of a circle you can just divide the diameter by 2.pi = 3.14d = diameter=c/3.14 Pi is always 3.14 or 22/7.d = 81.64/3.14d = 26r= radius= 26/2radius=13 cm
Answer: 13 inches
Step-by-step explanation:
Which graph shows the solution set for 2x+3>-9?
0 1 2
0 1 2
-2 -1 0 1 2
The appropriate graph displaying the solution set for 2x 3>-9 is:.
o====================>
-2 -1 0 1 2 3 4 5 6
What is number line?A number line is a straight line that represents the set of real numbers. It is a graphical representation of numbers in which each point on the line corresponds to a unique number.
To graph the solution set for 2x+3>-9, we need to solve for x and graph the inequality on a number line.
Starting with the given inequality:
2x + 3 > -9
Subtracting 3 from both sides gives:
2x > -12
Dividing both sides by 2 gives:
x > -6
Any value of x greater than -6 will therefore satisfy the inequality.
To graph this on a number line, we can start by marking -6 with an open circle (since x is not equal to -6).
Then, we shade to the right of -6, indicating all values of x that are greater than -6.
where the open circle at -6 indicates that x is not equal to -6, and the arrow pointing to the right indicates that all values of x greater than -6 satisfy the inequality.
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Two identical square pyramids were joined at their bases to form the composite figure below. 2 square pyramids have a base of 24 centimeters by 24 centimeters. The triangular sides have a height of 5 centimeters. [Not drawn to scale] Which expression represents the total surface area, in square centimeters, of the figure? 8 (one-half (24) (5)) 8 (one-half (24) (13)) (24) (24) + 8 (one-half (24) (5)) (24) (24) + 8 (one-half (24) (13)) Mark this and return
Answer: The composite figure consists of two square pyramids, so we can find the total surface area by adding the surface area of each pyramid. The surface area of a square pyramid is given by:
S = B + (1/2)Pl
where B is the area of the base, P is the perimeter of the base, l is the slant height, and S is the total surface area.
For each pyramid, we have:
B = 24^2 = 576 cm^2
P = 4(24) = 96 cm
l = sqrt(24^2 + 5^2) = 25 cm
So the surface area of each pyramid is:
S = 576 + (1/2)(96)(25)
S = 576 + 1200
S = 1776 cm^2
Therefore, the total surface area of the composite figure is:
2S = 2(1776)
= 3532 cm^2
The expression that represents the total surface area, in square centimeters, of the figure is:
(24) (24) + 8 (one-half (24) (5)) + 8 (one-half (24) (13)) = 576 + 480 + 624 = 1680 cm^2
This expression only accounts for the surface area of the base and the triangular faces, but it does not include the surface area of the pyramid faces. So it is not correct.
The correct answer is:
8 (one-half (24) (5)) + 8 (one-half (24) (13)) = 480 + 624 = 1104 cm^2
which only represents the surface area of the triangular faces of both pyramids. To get the total surface area, we need to add the surface area of the base, which gives:
1104 + 2(576) = 2256 + 1104 = 3360 cm^2
Therefore, the total surface area of the composite figure is 3360 square centimeters.
Step-by-step explanation:
Determine the coordinates of the image if triangle ABC is translated 6 units to the right.
A(-2, 1), B(6, 1), C(2, 5)
A(-2, 1), B(-6, 1), C'(-10, 5)
A'(-6, 7), B'(0,7), C'(-4, 11)
A'(-6, -5), B'(0, -5), C'(-4,-1)
Therefore option b is the right option: After translated it in 6units: we get
A'(-2, 1), B'(-6, 1), C'(-10, 5)
The picture's coordinates are:
A’(-2+6, 1) = (-4, 1)
B’(6+6, 1) = (12, 1)
C’(2+6, 5) = (8, 5)
Define coordinates of a triangle?
A location on the plane that is defined by an ordered pair of numbers is called a coordinate in a triangle (x,y). The y-coordinate and x-coordinate of a point indicate its vertical and horizontal positions, respectively.
Triangles can be described using a variety of coordinate systems in the Euclidean plane. Triangular coordinates is a name for one of these systems. It is a particular instance of barycentric coordinates for a triangle, and in that case it is sometimes referred to as a ternary plot or as areal coordinates
What exactly is barycentric cordinates?A barycentric coordinate system in geometry is a coordinate system where a point's location is determined by reference to a simplex (a triangle for points in a plane, a tetrahedron for points in three-dimensional space, etc.) . A point's barycentric coordinates can be thought of as the center of mass (or barycenter) of masses that are positioned at the vertices of a simplex. These masses can all be positive or negative, but only if the point is contained within the simplex.
Many branches of mathematics and physics, such as computer graphics, finite element analysis, and fluid dynamics, make use of barycentric coordinates.
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Given triangle ABC with ordered pairs:
A - (1, -3)
B - (3, 0)
C - (4, -2)
Rotate ABC 180 degrees about the origin and then reflect it over the y-axis. Determine the points of A', B', and C'.
The points A', B', and C' are (1, 3), (3, 0) and (4, 2) respectively. The solution has been obtained by using the concept of transformation.
What is transformation?
On a coordinate plane, forms can be translated, rotated, and reflected thanks to transformations. Any line, any point, and any vector can be reflected, rotated, and translated.
We are given coordinates of triangle ABC as A (1, -3), B (3, 0) and C (4, -2).
Now, we need to rotate the triangle 180 degrees about the origin.
We know that the rotation rule for rotating 180 degrees about the origin is that (x, y) becomes (-x, -y).
So, we get the new coordinates as
A' (-1, 3)
B' (-3, 0)
C' (-4, 2)
Now, on reflecting it over the y - axis, we get
A' (1, 3)
B' (3, 0)
C' (4, 2)
Hence, the points A', B', and C' are (1, 3), (3, 0) and (4, 2) respectively.
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Complete the description of two methods that can be used to convert 62 inches to centimeters. Round
your answers to the nearest tenth, if necessary.
Part 1 out of 2
The first method is
1 in.
2.54 cm
11 12 13 14 15 16 17 18
17 18 19 20
? cm
1 in. × 62
2.54 cm x 62
11
62 in.
cm
In conclusion 62 inches is equal to 157.48 centimeters (rounded to the nearest tenth).
How to solve?
Part 1 of 2:
The first method to convert 62 inches to centimeters involves using the conversion factor of 1 inch equals 2.54 centimeters. We can set up a proportion to solve for the number of centimeters in 62 inches:
1 in. x cm
----- = -----
2.54 62 in.
To solve for x, we can cross-multiply and simplify:
1 × x = 2.54 × 62
x = 157.48
Therefore, 62 inches is equal to 157.48 centimeters (rounded to the nearest tenth).
So the first method gives us 157.5 cm as the answer.
Part 2 of 2:
The second method to convert 62 inches to centimeters involves multiplying 62 by the conversion factor of 2.54 centimeters per inch:
62 in. × 2.54 cm/in = 157.48 cm
Therefore, using this method, we also get 157.5 cm as the answer (rounded to the nearest tenth).
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A pizza has 8 slices. John wants to order enough pizzas so 14 people can have 3 slices each.
Answer:
C John should order 6 pizzas because if he orders 5 pizzas, he will be short 2 slices.
Step-by-step explanation:
14 people need 3 slices each. We need to multiply.
14*3 = 42
Each pizza has 8 slices so divide by 8
42 /8 = 5 remainder 2
We round up to make sure to have enough.
We need at least 6 pizzas to have enough. He is short 2 slices.
Answer:
C)
Step-by-step explanation:
John wants to order enough pizzas for 14 people to have 3 slices each. This means that he would need at least 42 slices of pizza:
[tex]14 * 3 = 42[/tex]
It is given that pizza has 8 slices. Divide 8 from 42:
[tex]\frac{42}{8} = 5.25[/tex]
Note that he cannot order .25 of a pizza, and so he will have to order 6.
C) John should order 6 pizzas because if he orders 5 pizza, he will be short 2 slices.
Note: The 2 slices is calculated by multiplying the total slices for a pizza (8) with .25:
[tex]8 * .25 = 2[/tex]
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The triangles shown are congruent. Fill in the blank to complete the congruence statement for the triangles shown:
uze =
Answer:
uze=nkw
Step-by-step explanation:
U has no stroke which follows N
Z has a stroke which follows K
E has two strokes which follows W
To get to 1, divide 116 by _____. From 1, multiply by ______ to get to 32. OR, in a single step, multiply 116 by _____ to get to 32.
Answer: To get to 1, divide 116 by __116___. From 1, multiply by ___32___ to get to 32. OR, in a single step, multiply 116 by __.3___ to get to 32.
Step-by-step explanation:
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each hypotenuse length with the leg lengths that will create a right triangle.
unit √2 units
√5 units, √2 units
√2 units, √3 units
√5 units, 1 unit
Hypotenuse
√6 units
√5 units
√8 units
√3 units
√5 units, √3 units
Legs
The hypotenuse is √[(√2)² + (√3)²] = √(2+3) = √5 units.
What is the hypotenuse?The Iongest side of a right-angIed triangIe, or the side opposite the right angIe, is known as the hypotenuse in geometry. The Pythagorean theorem, which states that the square of the Iength of the hypotenuse equaIs the sum of the squares of the Iengths of the other two sides, can be used to determine the Iength of the hypotenuse.
The Iength of the Iegs are 1 unit, √2 units.
The hypotenuse is √[(1)² + (√2)²] = √(1+2) = √3 units.
The Iength of the Iegs are √5 units, √2 units.
The hypotenuse is √[(√5)² + (√2)²] = √(5+2) = √7 units.
The Iength of the Iegs are √5 units, √3 units.
The hypotenuse is √[(√5)² + (√3)²] = √(5+3) = √8 units.
The Iength of the Iegs are √5 units, 1 unit.
The hypotenuse is √[(√5)² + (1)²] = √(5+1) = √6 units.
The Iength of the Iegs are √2 units, √3 units.
The hypotenuse is √[(√2)² + (√3)²] = √(2+3) = √5 units.
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Which expression can be used to find the volume
of the rectangular prism in cubic centimeters?
Image shows a prism with a base area of 245 square cm and a height of 85 cm.
A.
85
+
245
B.
85
×
85
×
245
C.
85
+
(
85
×
245
)
D.
85
×
245
Answer: D. 85 ×245
is this help you give e hearts please
Answer:
D. 85 ×245
Question:
Which expression can be used to find the volume of the rectangular prism in cubic centimeters? The Image shows a prism with a base area of 245 square cm and a height of 85 cm.
Write a matrix to represent the finite graph.
A,B,C,D,F
Based on the given graph, we can create a matrix to represent the graph as follows:
[tex]\left[\begin{array}{ccccc}A&B&C&D&F\\0&1&0&0&1\\1&0&1&1&0\\0&1&0&0&1\\0&1&0&0&0\\1&0&1&0&0\end{array}\right][/tex]
What is matrix?A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. Matrices are commonly used in mathematics, physics, engineering, computer science, and many other fields to represent and manipulate data, equations, and systems of equations. A matrix can be represented using parentheses or brackets, with the entries separated by commas or spaces.
Here,
The rows and columns of the matrix represent the vertices of the graph, and the entries in the matrix represent the edges. If there is an edge between two vertices, the corresponding entry in the matrix is 1, otherwise it is 0. For example, there is an edge from vertex A to vertex B, so the entry in row A and column B is 1. Similarly, there is an edge from vertex B to vertex A, so the entry in row B and column A is also 1.
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What is the difference when -6c+4 is subtracted from -8+7c
The difference when -6c + 4 is subtracted from -8 + 7c is -2c - 11. This can be simplified to -2c - 11, which is the answer.
To calculate the difference when -6c + 4 is subtracted from -8 + 7c, we must first expand the terms. The first term, -6c, can be broken down into -6 x c, which simplifies to -6c. The second term, 4, can remain as is. The third term, -8, can also remain as is. The fourth term, 7c, can be broken down into 7 x c, which simplifies to 7c.
We can then calculate the difference by performing the subtraction. We begin by subtracting the second term, 4, from the first term, -6c. We can do this by adding -4 to -6c, which results in -6c - 4. We then subtract the fourth term, 7c, from the third term, -8. We can do this by adding 8 to -7c, which results in -7c + 8.
We can then combine the two terms together. We do this by adding -6c - 4 to -7c + 8. This results in -13c + 4. We can simplify this to -2c - 11, which is the final answer.
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solve this questionn
I don't think anyone can, that's the wrong pic
1.) Circle A has been transformed to Circle B. What is the translation rule for these circles?
A.) (x-2),(y+3)
B.) (x+2),(y+3)
C.) (x-1),(y+4)
D.) (x+4),(y+3)
*Please Show All Work***
2.) Circle A has been transformed to Circle B. What is the scale factor of Circle A to Circle B?
The translation rule for these circles is C): (x-1),(y+4), with a scale factor of 1/4. This means that when transforming Circle A to Circle B, each x-coordinate is decreased by 1 and each y-coordinate is increased by 4.
What is circle?Circle is a two-dimensional shape with no sides or corners. Its defining feature is its curved line, which forms a continuous loop. The circle has no beginning or end, which symbolizes eternity, completeness and unity. Circles are often used in various designs, logos and artwork, as well as in mathematics, science, engineering and architecture.
The translation rule for these circles is C): (x-1),(y+4). We can calculate the scale factor by determining the difference between the coordinates of the two circles.
The coordinates of Circle A are (x,y). The coordinates of Circle B are (x-1, y+4). Therefore, the difference between the two is (1,4).
The scale factor is the ratio of the differences. Therefore, the scale factor is 1/4.
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Therefore, the translation rule for these circles is C): (x-1),(y+4), and the scale factor is 1/4.
In conclusion, the translation rule for these circles is C): (x-1),(y+4), with a scale factor of 1/4. This means that when transforming Circle A to Circle B, each x-coordinate is decreased by 1 and each y-coordinate is increased by 4.
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when joselyn went to the store she bought 2.7 kg of chocolate candy. what would joselyn do to find out how many grams she bought?
Using the conversion factor, Joselyn bought 2700 grams of chocolate candy
A conversion factor is a numerical ratio used to convert a measurement from one unit to another. It is a mathematical expression that is used to convert a quantity expressed in one unit of measure into an equivalent quantity expressed in another unit of measure.
To convert 2.7 kg to grams, Joselyn would use a conversion factor between kilograms and grams. The conversion factor is 1000 grams per 1 kilogram, which means there are 1000 grams in one kilogram.
So, to convert 2.7 kg to grams, Joselyn would multiply 2.7 kg by the conversion factor
2.7 kg x 1000 g/kg = 2700 g
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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Simplify the expression.
4(-8x + 5) – (-33x – 26) =
Therefore, the simplified expression is: [tex]1x+46[/tex].
What is fraction?A fraction is a way of representing a part of a whole or a quantity that is not a whole number. It is expressed in the form of a numerator and a denominator separated by a line, called a fraction bar or a vinculum. The numerator is the top number in a fraction, and the denominator is the bottom number. The numerator represents the number of equal parts of a whole, and the denominator represents the total number of equal parts into which the whole is divided. For example, the fraction 3/4 represents three equal parts of a whole that is divided into four equal parts. Fractions can be used in many mathematical operations, such as addition, subtraction, multiplication, and division, and are an essential concept in mathematics.
Expanding the left-hand side, we get:
[tex]4(-8x + 5) - (-33x - 26)[/tex]
[tex]= -32x + 20 + 33x + 26[/tex]
Simplifying, we can combine like terms:
[tex]-32x + 33x + 20 + 26[/tex]
[tex]= 1x + 46[/tex]
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24 divide by 6 please just get an answer
Answer: 4
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
24/6
= 4
Desmon and Garrett are running a marathon. Desmon raised $3,654 and Garrett raised $2,765. Jesse and Mikayla are running the same marathon. Jesse raised $4,876 and Mikayla raised $2,874. How much more money did Jesse and Mikayla raise than Garrett and Desmon?
Answer:$1,331
Step-by-step explanation: Add each pairs earnings then subtract and you'll get the answer.
a water trough is long and a cross-section has the shape of an isosceles trapezoid that is wide at the bottom, wide at the top, and has height . if the trough is being filled with water at a rate of , how fast is the water level rising when the water is deep?
The water level is rising at a rate of 0.1 cm/min when the water is 50 cm deep
Let's begin by finding the volume of water in the trough when the water is 50 cm deep. We know that the trough has an isosceles trapezoid cross-section, so we can find the area of the cross-section using the formula for the area of a trapezoid
A = ((b1 + b2)/2) × h
where b1 and b2 are the lengths of the parallel sides of the trapezoid, and h is the height of the trapezoid.
In this case, b1 = 20 cm, b2 = 80 cm, and h = 60 cm. So the area of the cross-section is
A = ((20 + 80)/2) × 60
A = 3000 cm^2
To find the volume of water in the trough when the water is 50 cm deep, we need to multiply the cross-sectional area by the length of the trough and the depth of the water
V = A × L × d
V = 3000 cm^2 × 10 m × 0.5 m
V = 15000 L
Now that we know the volume of water in the trough, we can find how fast the water level is rising by taking the derivative of the volume with respect to time
dV/dt = 0.3 m^3/min
We need to convert this rate to units of L/min, so we can multiply by 1000 to convert m^3 to L
dV/dt = 0.3 m^3/min × 1000 L/m^3
dV/dt = 300 L/min
Finally, we can use the formula
dV/dt = A × dh/dt
to find how fast the water level is rising when the water is 50 cm deep. We know A = 3000 cm^2, and we want to find dh/dt when d = 50 cm. We can rearrange the formula to solve for dh/dt
dh/dt = dV/dt / A
dh/dt = 300 L/min / 3000 cm^2
dh/dt = 0.1 cm/min
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The given question is incomplete, the complete question is:
A water trough is 10 m long and has a cross-section in the shape of an isosceles trapezoid that is 20 cm wide at the bottom, 80 cm wide at the top, and has height 60 cm. If the trough is being filled with water at the rate of 0.3 m3/min how fast is the water level rising when the water is 50 cm deep?
find mBc
A) 62°
B) 65°
C) 67°
D) 70°
E) 72°
put 62 it does have instructions right
Professor Melendez has 10 students in her college algebra class. Their ages are shown below.
When the outliers are removed, what is the mean age of the remaining students? 19.27 19.18.18.18.7.19.2018
The mean age of the students in the class is 22.3.
The median age of the students is 19.
What is the median age of the remaining students?
There are two ourers in the data from Professor
Melender's class: 27 and 47
The median age of the remaining students in Professor Melendez's college algebra class is 18.5.
To find the median age of the remaining students in Professor Melendez's college algebra class, we need to first remove the outliers, which are the ages of 27 and 47. After removing these outliers, we are left with 8 ages: 19, 18, 18, 18, 7, 19, 20, and 18. To find the median age, we need to arrange the ages in order from least to greatest. The ordered list of ages is: 7, 18, 18, 18, 19, 19, 20. Since there are an even number of ages, we need to find the average of the middle two ages, which are 18 and 19. Thus, the median age of the remaining students is (18 + 19) / 2 = 18.5.
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W= 85 / 5
W= 85 - 25
W - 85/ 5- 25
W= 85/ 25 - 5
Answer is 17, 60, -8, 4.25 in the given BODMAS
Brackets of Division, Multiplication, Addition, and Subtraction, or BODMAS, is an acronym. It is a method for resolving mathematical issues.
Brackets are resolved first in accordance with the BODMAS guidelines. Parentheses are also solved first in that case, then curly brackets, and finally square brackets.
It always produces the right outcomes when applied correctly. Uncertain questions that are poorly phrased may result in inaccurate answers.
Let's utilise BODMAS to answer a question:
W= 85 / 5
W = 17
W= 85 - 25
W = 60
W = 85/ 5- 25
W = -8
W= 85/ 25 - 5
W = 85/20
W = 4.25
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Find the length of the midsegment of the trapezoid with the vertices 0,3 2,5 6,4 2,0
After answering the provided question, we can conclude that Therefore, coordinates the length of the midsegment of the trapezoid is [tex]\sqrt(13)[/tex]units.
what are coordinate ?In mathematics, a coordinate is a number or permutation of integers that indicates the location of a point or object in space. Coordinates are frequently used to define a point or object's position in a specific reference frame, such as the Euclidean or antarctic coordinate systems. In the Cartesian coordinate system, a point is located by its distance from the origin along the x-axis and its distance first from origin along the y-axis. These distances are represented by two numbers, its x-coordinate and the y-coordinate. The point's position in the plane is specified by the two coordinates.
To find the length of the midsegment of a trapezoid,
[tex]E = ( (x1 + x2)/2 , (y1 + y2)/2 )\\So, E = ( (0+2)/2 , (3+5)/2 ) = (1,4)\\F = ( (x3 + x4)/2 , (y3 + y4)/2 ) = ( (6+2)/2 , (4+0)/2 ) = (4,2)\\d = \sqrt( (x2 - x1)^2 + (y2 - y1)^2 )\\d =\sqrt( (4-1)^2 + (2-4)^2 ) = \sqrt(9+4) = \sqrt(13)\\[/tex]
Therefore, the length of the midsegment of the trapezoid is [tex]\sqrt(13)[/tex]units.
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from a certain distance, the angle of elevation to the top of a building is 17 degrees. at a point 50 meters closer to the building, the angle of elevation is 31 degrees. find the height of the building.
The height of the building is approximately 102.86 meters.
Given that from a certain distance, the angle of elevation to the top of a building is 17 degrees. At a point 50 meters closer to the building, the angle of elevation is 31 degrees. To find the height of the building.In the given figure, AB is a building and C and D are two different points at a certain distance from the building. So that, angle BCA = 17° and angle BDA = 31°.We have to find the height of the building AB.
Now, let's find the distance between the building and point C and D. Let, BC = x50 meters closer to the building, so BD = x + 50 metersWe know, tangent of an angle = Perpendicular / BaseFor the angle 17°, we have to find AC, so;tan(17°) = AB / ACAB = AC tan(17°) ---(1)For the angle 31°, we have to find AD, so;tan(31°) = AB / ADAB = AD tan(31°) ---(2)Now, find the difference between (1) and (2).AC tan(17°) - AD tan(31°) = 0AC / AD = tan(31°) / tan(17°) [Divide both sides by AD tan(17°)]AC / (AD + 50) = tan(31°) / tan(17°) ----(3)We know the value of (AC + AD) is the actual distance between the building and the point.
So,(AC + AD) = x + (x + 50) = 2x + 50 metersNow we can use the value of AC / (AD + 50) in equation (3) and solve for AB.AB = AC tan(17°) = (2x + 50) tan(17°) tan(31°) / (tan(31°) - tan(17°))Substitute the value of AB from equation (1), so;AC tan(17°) = (2x + 50) tan(17°) tan(31°) / (tan(31°) - tan(17°))AC = (2x + 50) tan(31°) / (tan(31°) - tan(17°))Now, let's use the value of AC in equation (1),AB = AC tan(17°) = (2x + 50) tan(17°) tan(31°) / (tan(31°) - tan(17°)) = 102.86 meters (approx.)So, the height of the building is AB = 102.86 meters (approx.)
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Answer:
(1 - 5x + y)(1 + 5x - y).
(9a - c + 3b)(9a + c - 3b).
(bc - b - c - 1)(bc + b + c - 1).
Step-by-step explanation:
1 - 25x^2 + 10xy - y^2
= 1 - (25x^2 - 10xy + y^2)
= 1 - (5x - y)^2
This is the difference of 2 squares, so the answer is
(1 - (5x - y))(1 + (5x - y))
= (1 - 5x + y)(1 + 5x - y).
81a^2 + 6bc - 9b^2 - c^2
= 81a^2 - (c^2 - 6bc + 9b^2)
= 81a^2 - (c - 3b)^2
= (9a - (c - 3b))(9a + (c - 3b))
= (9a - c + 3b)(9a + c - 3b)
b^2c^2 - 4bc - b^2 - c^2 + 1
= b^2c^2 - 4bc - b^2 - (c^2 - 1)
= (bc - b) - (c + 1))((bc + b) + (c - 1)
= (bc - b - c - 1)(bc + b + c - 1).