Answer:
(1,0)
Step-by-step explanation:
A certain train has 8 cars that are being lined up on a track. One of the cars is the engine, and another is the caboose. The engine will be the first car in line. The caboose will be the last car in line. In how many ways can the cars be lined up?
There are 20,160 ways the cars can be lined up on the track.
The total number of arrangements of n different things taken all at a time is given by n! (factorial), which means the product of all the numbers from 1 to n.
Here n=8.
To find the number of ways the cars can be lined up, we can use this formula:
8! = 8*7*6*5*4*3*2*1
8! = 40,320.
There are eight cars in total, but one of them has to be in the first position and another in the last position.
That leaves us with 6 cars to arrange in between the engine and caboose.
The number of ways to arrange those 6 cars is 6!, which is 720.
Therefore, the number of ways to line up the cars is:
8! / (2! x 6!) = 28 x 720 = 20,160.
Another way of doing this is by combination.
The formula for combination is:
nCr= n! / r! (n-r)!
Here n=8
r=2
n-r = 6
Therefore substituting,
nCr = 8! / (2! x 6!) = 28 x 720 = 20,160.
So there are 20,160 ways the cars can be lined up on the track.
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Are the binary structures U5 and U6(consisting of fifth and sixth roots of unity, re-spectively) isomorphic?
The order of the U5 and U6 is not equal hence isomorphic.
U5 fifth root of unit
U6 sixth root of unit
U5 = { z E c : Z^5 =1 }
= {e ^2ikx : k=0,1,2,,,,n}
U6 = { z E c : Z^6 =1 }
= {e ^2ikx : k=0,1,2,,,,n-1}
U5 = Z5
U6 = Z6
In mathematics, an isomorphism is a structure-preserving mapping between two similar structures that can be reversed by inverse mapping. Two mathematical structures are isomorphic if there is an isomorphism between them.
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Mrs. Craig gave her class 15 minutes to read. Abby reads 5.5 pages in that time. At what rate, in pages per hour, would Abby read?
find a div m and a mod m when a) a = 228, m = 119. b) a = 9009, m = 223. c) a = −10101, m = 333. d) a = −765432, m = 38271.
To find the divisor (div) and the remainder (mod):
a) To find div and mod, we use the formula: a = m x div + mod.
For a=228 and m=119:
- div = floor(a/m) = floor(1.9244) = 1
- mod = a - m x div = 228 - 119 x 1 = 109
Therefore, div = 1 and mod = 109.
b) For a=9009 and m=223:
- div = floor(a/m) = floor(40.4469) = 40
- mod = a - m x div = 9009 - 223 x 40 = 49
Therefore, div = 40 and mod = 49.
c) For a=-10101 and m=333:
- div = floor(a/m) = floor(-30.3903) = -31
- mod = a - m x div = -10101 - 333 x (-31) = -18
Therefore, div = -31 and mod = -18.
d) For a=-765432 and m=38271:
- div = floor(a/m) = floor(-19.9885) = -20
- mod = a - m x div = -765432 - 38271 x (-20) = -2932
Therefore, div = -20 and mod = -2932.
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what is the total dose required for a 140 lb patient if the amount required is 28 mg/kg bodyweight?
The total dose required for a 140 lb patient is 3,920 mg, as it is calculated by multiplying 28 mg/kg bodyweight.
1. Calculate the patient's bodyweight in kilograms by dividing their weight in pounds (140) by
2.2: 140 ÷ 2.2
= 63.63 kg
2. Multiply the patient's bodyweight in kilograms (63.63) by the required dose per kilogram (28):
63.63 x 28
= 1,780.84 mg
3. Round this number up to the nearest whole number: 1,780.84 rounded up = 3,920 mg
The total dose required for a 140 lb patient is calculated by multiplying the amount required per kilogram of bodyweight by the patient's bodyweight in kilograms. To calculate the patient's bodyweight in kilograms, you need to divide their weight in pounds (140) by 2.2. This gives you 63.63 kg. Then, multiply the patient's bodyweight in kilograms (63.63) by the required dose per kilogram (28): 63.63 x 28 = 1,780.84 mg. Finally, round this number up to the nearest whole number: 1,780.84 rounded up = 3,920 mg. Therefore, the total dose required for a 140 lb patient is 3,920 mg.
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The ratio of the interior angles of a triangle is 3 : 3 : 4. What are the angle
measures? Use the equation 3x + 3x + 4x = 180.
Answer:
The sum of interior angle =180
given;
3x +3x +4x =180
10x = 180
x =180/10
x =18
so put the value of x =18 in 3x, 3x and 4x
= 3x
=3 ×18
= 54
2nd one = 4 x
= 4×18
= 72
All three angles are 54,54,72
Step-by-step explanation:
The angle measures of the triangle are 54°, 54° and 72°.
What is Ratio?Ratio is simply a relationship between two or more numbers, quantity or size of objects.
If 'a' is related to 'b', then their ratio is denoted by a : b.
Let A, B and C be the three angles of this triangle.
Ratio of interior angles of the triangle, A : B : C = 3 : 3 : 4
Then angle A = 3x, B = 3x and C = 4x, by the definition of ratio.
Also, we know sum of the interior angles of a triangle = 180°
⇒ 3x + 3x + 4x = 180
⇒ 10x = 180
⇒ x = 180 / 10
⇒ x = 18
Therefore,
A = 3x = 3 × 18 = 54
B = 3x = 3 × 18 = 54
C = 4x = 4 × 18 = 72
Hence the measures of the angles of the triangle whose angles are in the ratio 3 : 3 : 4 are 54°, 54° and 72°.
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I need help with this
Answer:
o.1
is the answer
ok
goodyck3
PLEASE HELP ASAP! URGENT!
Answer:
1-5 is the domain
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
if you look closely, when you get to 3 on domain, in rage it says 4
it takes lisa 2/3 of an hour to to walk from her home to her college at a rate of 6km/h
How far apart are her home and college?
The ratio of a to b is 4/7. If a is 16, find the value of b.
Answer:
B=28
Step-by-step explanation:
(3y^2 – 4y + 1) +
(- y^2 + 4y – 3)
Answer:
2y^2-4y+2
Step-by-step explanation:
3y^2-4y+1-y^2+4-3
3y^2-y^2-4y+1+4-3
2y^2-4y+1+4-3
2y^2-4y+2
The area of a base of a cuboid is 45 cm^ , its height is 6 cm find its volume
Answer:
270 cm³
Step-by-step explanation:
hope this helps
Find the exact location of all the relative and absolute extrema of the function.] (Order your answers from smallest to largest x.)
f(x) = x4 − 8x3 with domain [−1, +[infinity])
f has (select)(a relative minimum, a relative maximum, an absolute minimum, an absolute maximum, no extremum,) at (x, y) = ____________
f has (select)(a relative minimum, a relative maximum, an absolute minimum, an absolute maximum, no extremum,) at (x, y) = ____________
Responses interval : (-1, -32) for the absolute minimum; (0, 0) for the relative maximum; (2, -32) for the absolute minimum; (+, +) for the absolute maximum (or "no absolute maximum")
Detailed explanation:
Extremes will occur at the domain interval's ends and at turns when the first derivative is zero.
It is the derivative.
h'(t) = 24t^2 -48t = 24t (t -2)
The extremes will be at t=0 and t=2, when there are zeros.
By evaluating the function at the endpoints of the interval and at the turning points, we can identify relative and absolute extrema.
h(-1) = 8(-1) (-1)
²(-1-3) = -32\s h(0) = 8(0)(0-3) = 0\s h(2) = 8(2²)(2 -3) = -32\s h(∞) = 8(∞)
³ = ∞
At t=-1 and t=2, the absolute minimum is found to be -32. The greatest value is, which is located at time t. At t=0, the relative maximum is zero, or 0.
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a batter hits the ball and runs toward first base at a speed of 28 ft/s. at what rate (in ft/s) does the distance between the runner and second base change when the runner has run 20 ft? (round your answer to two decimal places.)
The rate at which the distance between the runner and second base changes is 28.71 ft/s.
Given, a batter hits the ball and runs toward first base at a speed of 28 ft/s. we have to find the rate (in ft/s) at which the distance between the runner and second base change when the runner has run 20 ft.
As, distance = speed × time
d = st
On differentiating both the sides
d' = s't + s
d' = 20/28 + 28
d' = 0.71 + 28
d' = 28.71
Hence, the rate at which the distance between the runner and second base changes is 28.71 ft/s.
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translate each verbal phrase into an algebraic expression.
8. 7 raised by thrice of c dropped by factor of five is 2.
9. 8 divides total of 3 times f and six equals 3.
10. volume of 8 and the product of 5 and q increased by 6 yields 88.
Hello!
The first expression is
twice the difference between 6 times h and 3 gives 30.
twice the difference between 6h and 3=30
subtract:
2(difference between 6h-3)=30
2(6h-3)=30
Next:
Sum of 5 times z and 4 divided by 2 is 7.
Sum of 5z and 4 divided by 2=7
(5z+4)÷2=7
________________________________________________
next:
22 minus the product of 7 and y yields 1
22-7y=1
\(\rule{300}{1}\)
Hope everything is clear.
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15% of the players in a pro-am golf tournament are ranked in the top 40 golfers in the world. 67% of the players in the same tournament are amateurs. assume a tournament player being in the top 40 golfers in the world is mutually exclusive of the golfer being an amateur. what is the probability a randomly selected player in tournament is in the top 40 golfers in the world if the player is an amateur?
Thus, there is a 71.95% chance that a randomly selected amateur player in the tournament is not in the top 40 golfers in the world.
The first step in solving this problem is to use the given information to calculate the proportion of players who are both amateurs and ranked in the top 40 golfers in the world.
Since being a top 40 golfer and being an amateur are mutually exclusive, the proportion we're interested in is the proportion of amateur players who are not in the top 40.
We know that 15% of players are in the top 40, so 85% of players are not. We also know that 67% of players are amateurs, so 33% of players are not. To find the proportion of amateur players who are not in the top 40, we can multiply these two proportions:
0.85 x 0.33 = 0.2805
So, 28.05% of players in the tournament are amateurs who are not in the top 40.
Now, we can use this proportion to answer the question of what the probability is of selecting an amateur player who is not in the top 40, given that the player is an amateur. This is simply the proportion we just calculated:
P(amateur and not top 40) = 0.2805
Therefore, the probability of selecting an amateur player who is in the top 40 is:
P(top 40 | amateur) = 1 - P(amateur and not top 40)
= 1 - 0.2805
= 0.7195 or 71.95%
In other words, there is a 71.95% chance that a randomly selected amateur player in the tournament is not in the top 40 golfers in the world.
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Systems of Linear Equations. A florist has two arrangements offered at special prices. The first arrangement consists of 5 lilies and 1 rose and costs $19.75. The second arrangement consists of 6 lilies and 3 roses and costs $27.75. What are the costs of each lily and each rose?
The cost of each lily is $3.25, and the cost of each rose is $6.50 according to the first arrangement and second arrangement.
Let's assume the cost of each lily is represented by "L" and the cost of each rose is represented by "R." Based on the given information, we can form a system of linear equations.
From the first arrangement, we know that 5 lilies and 1 rose cost $19.75. This can be written as the equation 5L + R = 19.75.
From the second arrangement, we know that 6 lilies and 3 roses cost $27.75. This can be written as the equation 6L + 3R = 27.75.
To solve this system of equations, we can use the method of substitution or elimination. Let's use the elimination method.
Multiply the first equation by 3 and the second equation by -1 to eliminate the R term:
15L + 3R = 59.25
-6L - 3R = -27.75
Adding the equations, we get:
9L = 31.50
Divide both sides by 9:
L = 3.50
Now substitute the value of L back into one of the original equations. Let's use the first equation:
5(3.50) + R = 19.75
17.50 + R = 19.75
Subtract 17.50 from both sides:
R = 2.25
Therefore, the cost of each lily is $3.50, and the cost of each rose is $2.25.
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Tobias rented a kayak from a sports equipment store.
For the rental, the store charged $60 per day plus $25
for delivery. If Tobias was charged a total of $325, for
how many days did he rent the kayak?
A) 3
B) 5
C) 7
D)11
Answer:
B
Step-by-step explanation:
Let x = every day he rented the kayak
Since the store charges $60 for each day, multiply x by 60 like this: 60x
They also have $25 on top of that; 60x + 25
This all has to equal $325; 60x + 25 = 325
To solve for x, subtract 25 from both sides
60x + 25 = 325
- 25 - 25
60x = 300
Divide both sides by 60
60x/60 = 300/60
x = 5
This means Tobias rented the kayak for 5 days
How do you find eigenvalues and eigenvectors of a matrix?
Identifying Eigenvalues and Eigenvectors, A should be a n x n matrix. By resolving the det(λI−A)=0 problem, first determine the eigenvalues of A. Find the fundamental solutions to (λI−A)X=0 to determine the fundamental eigenvectors X≠0 for each.
In linear algebra, a nonzero vector is said to have an eigenvector, or characteristic vector, when a linear transformation is applied to it; this characteristic vector only changes by a scalar amount. The scaling factor for the eigenvector is known as the associated eigenvalue, frequently represented by the symbol. Linear transformations are made intelligible by the usage of eigenvectors. Eigenvectors can be thought of as a non-directional stretching or compressing of an X-Y line chart. In mathematics, eigenvalues are regarded as the factor by which a transformation is stretched, whereas eigenvectors are the real non-zero eigenvalues that point in the direction stretched by the transformation. The direction of the transformation is negative if the eigenvalue is negative.
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Your younger brother is getting stickers from a vending machine at the local supermarket. A proportion of stickers have the
phrase "Girls Rule!" If there are eight stickers with this message in a sample of 36 stickers, what is the 95% confidence interval
for this proportion? (1 point)
0 (0.0864, 0.3580)
0 (0.0862, 0.3578)
0 (0.0847, 0.3553)
0 (0.0812, 0.3256)
Answer:
p^=368=0.2222.95%CI=(0.2222−1.960.2222(1−0.2222)36,0.2222+1.960.2222(1−0.2222)36)=95%CI=(0.2222−1.96360.2222(1−0.2222),0.2222+1.96360.2222(1−0.2222))==(0.0864,0.3580).
=(0.0864,0.3580).
Step-by-step explanation:
flvs?
The 95% confidence interval for the given proportion is (0.864, 0.3580).
What is a confidence interval?In statistics, a confidence interval describes the likelihood that a population parameter would fall between a set of values for a given percentage of the time. Confidence ranges that include 95% or 99% of predicted observations are frequently used by analysts.
Given total samples = E = 36
number of outcomes = 8
probability = p = 8/36 = 0.2222
value of z for 95% confidence interval = 1.96
intervals = p ± z(\(\sqrt{\frac{p(1 - p)}{E} }\))
taking positive sign
= 0.2222 + 1.96\((\sqrt{\frac{0.2222(1 - 0.2222)}{36} })\) = 0.3580
taking negative sign
= 0.2222 - 1.96\((\sqrt{\frac{0.2222(1 - 0.2222)}{36} })\) = 0.0864
Hence, the intervals are (0.864, 0.3580), and option A is a suitable answer.
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A rectangle has vertices (a,b), (c,b), and (a,c). Find the fourth vertex.
Answer:
Step-by-step explanation:
Abc
The required coordinate of the fourth vertex is (c, c).
What is coordinate?Coordinate, is represented as the values on the x-axis and y-axis of the graph. while the coordinate x is called abscissa and the coordinate of the y is called ordinate.
here,
A rectangle has vertices (a,b), (c,b), and (a,c)
let the vertex of the first coordinate be [x, y],
Now,
for side a Corrdiante A (a, b) and B (c , b)
Now, coordinate the opposite side C(a, c) and D(x , y)
The coordinates of D must be equal to x coordinate of B and y ordinate of C so,
D(x, y) = D(c, c)
Thus, the required coordinate of the fourth vertex is (c, c).
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When Ford had to pull their national campaign, this was particularly disheartening as their media planners and buyers had spent a great deal of time considering the myriad of advertising outlets available to them and determining which outlets would be best to place their buys in. This best describes which media challenge faced by media planners and buyers today? O increasing audience fragmentation O increasing media options O increasing behavioral targeting O increasing costs O increasing competition
The media challenge faced in the scenario is increasing audience fragmentation.
What do you mean by the term Selling price?The cost price is abbreviated as C.P. The price at which an article is sold is known as its selling price. The selling price is abbreviated as S.P.It is a price above the cost price and includes a percentage of profit also.
The media challenge described in the scenario is increasing audience fragmentation. Audience fragmentation occurs when there are numerous media options available, and consumers have different preferences and behaviors regarding media consumption. This makes it challenging for media planners and buyers to identify the most effective media outlets to reach their target audience. In the case of Ford, their media planners and buyers had put a lot of effort into selecting the best media outlets, but still had to pull their campaign due to the challenges posed by audience fragmentation. Therefore, the media challenge faced in the scenario is increasing audience fragmentation.
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If a/(b+c+d)=4/3 and a/(b+c)=3/5, find the value of d/a
Answer:
I did this quickly, so please check carefully.
d/a = -(11/12)
Step-by-step explanation:
a/(b+c+d)=4/3
3a = 4(b+c+d) [Cross multiply]
3a = 4((b+c)+d) [Note that b and c can be grouped as (b+c)]
---------------------
We can see the second equation also has a (b+c) group. Isolate it to one side:
a/(b+c)=3/5
5a = 3(b+c)
(b+c) = (5a/3)
------------------
Now use this definition of (b+c) in the first equation:
3a = 4((b+c)+d)
3a = 4((5a/3)+d) [Use the new value of (b+c), which is (5a/3)]
3a = 4(5a/3+3d/3)
3a = 4((5a + 3d)/3)
3a = (4/3)(5a + 3d)
3a = (20/3)a + 4d
9/3a = (20/3)a + 4d
-(11/3)a = 4d
4d = -(11/3)a
d = -(11/12)a
d/a = -(11/12)
6. A plant with yellow leaves and stunted growth is deficient is
Answer:
A plant with yellow leaves and stunted growth is likely deficient in nutrients such as nitrogen, iron, magnesium or sulfur. It could also be affected by a viral or fungal infection, or an environmental stressor such as too much or too little water, poor soil quality or exposure to extreme temperatures. A soil test or analysis of the plant's symptoms can help identify the specific cause of the deficiency and appropriate treatment or management practices.
Step-by-step explanation:
A rental car agency charges $190.00 per week plus $0.15 per mile to rent a car. How many miles can you travel in one week for $266.50
Answer:
510 miles
Step-by-step explanation:
Let 'm' be the miles traveled.
To find the charge for 'm' miles, multiply m by rate per mile.
Charge for 'm' miles = 0.15*m = 0.15m
If we add the fixed charge per week with the charge for 'm' miles, we will get the total charge.
Total charge = Fixed charge + charge for m miles
= 190 + 0.15m
190 + 0.15m = 266.50
Subtract 190 from both sides,
0.15m = 266.50 - 190
0.15m = 76.50
Divide both sides by 0.15,
\(m =\dfrac{76.50}{0.15}\\\\\\m=\dfrac{7650}{15}\\\\\\m = 510 \ miles\)
I’ll give you 20 points if you help me please
Answer:
f(g(x)) = 2x - 5
Step-by-step explanation:
If f(x) = 2x + 1 and g(x) = x - 3
Then to find the value of f(g(x)) we write x - 3 instead of x in the function f(x)
f(g(x)) = 2 (x-3) + 1 ➡ f(g(x)) = 2x -5
Answer:
\(\huge \boxed{f(g(x))=2x+-5}\)
Step-by-step explanation:
The functions are given,
\(f(x)=2x+1\)
\(g(x)=x-3\)
To find \(f(g(x))\), the input for the function f of x will be g of x.
\(f(g(x))=2(x-3)+1\)
Expand brackets.
\(f(g(x))=2x-6+1\)
Combine like terms.
\(f(g(x))=2x-5\)
a^2-b^2+4b-4 please solve it step by step i will mark you brainlest
Answer:
b = a + 2 or b = 2 - a
Step-by-step explanation:
Solve for b:
-4 + a^2 + 4 b - b^2 = 0
The left hand side factors into a product with two terms:
(2 + a - b) (-2 + a + b) = 0
Split into two equations:
2 + a - b = 0 or -2 + a + b = 0
Subtract a + 2 from both sides:
-b = -a - 2 or -2 + a + b = 0
Multiply both sides by -1:
b = a + 2 or -2 + a + b = 0
Subtract a - 2 from both sides:
Answer:
b = a + 2 or b = 2 - a
Write an equation for the following math sentence.
One fourth times the difference of ten and a variable is 2/3.
Answer:
Step-by-step explanation:
Let x be the variable.
One fourth times the difference of ten and x is 2/3
1/4 (10 - x) = 2/3
10 - x = 3/2
-x = 3/2 - 10
x = -3/2 + 10
x = 13/2
The answer is:
\(\rm{\dfrac{1}{4}(10-d)=\dfrac{2}{3}}\)
Work/explanation:
First, the variable is d
Then, the difference of 10 and d is 10 - d.
One-fourth is 1/4.
The equation is : \(\rm{\dfrac{1}{4}(10-d)=\dfrac{2}{3}}\).
Therefore, this is the required equation.4 km 20) Determine the distance across the lake? 6 km Lake 6
hope this helps you
do this or your sus
100+100
x3
x3
+10
I bet you can not do this one
same answer as the one above
1810