a sports team has 99 jerseys numbered 1, 2, 3, . . . , 99. show your work for each part, 49 pairs many ways are there to choose 2 different jerseys, without order, such that their numbers sum to 100, using the concept of combination formula.
What is combination formula?The number of possible ways to choose items from a collection when the order of choice is irrelevant is determined using the combination formula. Combination, to put it simply, is the process of choosing items or things from a bigger group where order is irrelevant.
The formula becomes: \(^nC_r\)
Where, n = total number of objects
r = number of choosing objects.
Sports team has 99 jerseys. So, 49 pairs will be possible to have their sum is 100.
Example - (1+99), (2+98),......,(49+51)
Thus, there are 49 ways to choose two different jerseys.
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PLSSSS HELPPPP
Using an equivalent fraction, change 4/5 into a decimal
Answer:
0.80
4/5 is equal to 80%.
80% as a decinal is 0.80.
The answer is 0.80.
Answer:
The answer is 0.8
Step-by-step explanation:
Critical values for quick reference during this activity
Confidence level Critical value
0.90 z* = 1.645
0.95 z* = 1.960
0.99 z* = 2.576
Jump to level 1 A poll for a statewide election has a margin of error of 3.34 percentage points. 3 How many voters should be sampled for a 90% confidence interval? Round up to the nearest whole number Ex: 1234 voters 4
We get that 636 voters should be sampled for a 90% confidence interval.
What is the central limit theorem?The Central Limit Theorem is a cornerstone of statistics, and it states that regardless of the population's underlying distribution, as sample size grows, the distribution of sample means of independent variables with similar distributions approaches a normal distribution. In other words, the Central Limit Theorem offers a method for approximating population behavior by examining sample behavior.
This theorem is significant because it enables statisticians to draw conclusions about a population from a sample, despite the fact that the population's distribution may be obscure or intricate.
The sample size for the distribution is given by:
\(n = (z* / E)^2 * p * (1 - p)\)
Now, substituting the values we have:
\(n = (1.645 / 0.0334)^2 * 0.5 * (1 - 0.5) = 635.84\)
Hence, We get that 636 voters should be sampled for a 90% confidence interval.
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Suppose the true proportion of high school students who walk to school in New York City is 0.82. If many random samples of 400 high school students are taken, by how much would their sample proportions typically vary from the true proportion?
a. 0
b. 0.001
c. 0.019
d. 0.148
e. 7.684
Answer:0.019 i think
Step-by-step explanation:
you would use the variability formula which is the squareroot p(1-p)/n
which one is more healthier please help me
Answer:
Apple
Step-by-step explanation:
An apple has more nutririon than a glizzy.
21 is what percentage of 30?
Answer:
.7
Step-by-step explanation:
30/.7 is 21
Answer:
.7
Step-by-step explanation:
21/30=.7
Use Green’s Theorem to evaluate ∫ C (y^e(−x) dx − e^( −x )dy)
where C is parameterized by ⃗r(t) = 〈 e ^e ^t , √ 1 + t ^sint 〉
where t ranges from 1 to π.
The problem requires us to use Green's Theorem to calculate the line integral. Green's theorem relates line integrals to surface integrals and vice versa over regions bounded by simple, closed, and piecewise-smooth curves.
Using Green's Theorem to evaluate the given integral requires some steps.
Step 1: Determine the partial derivatives of M and N M (x, y) = y e ^ ( -x ) N (x, y) = -e ^ ( -x ) ∴ ∂N/∂x = e ^ ( -x ) = ∂M/∂y Therefore, the curve C is piecewise smooth and closed.
Step 2: We then have to parameterize the given curve. Here, the curve is parameterized as ⃗r(t) = 〈 e ^e ^t , √ 1 + t ^sint 〉, where t ranges from 1 to π.
Step 3: Now, substitute x = e ^ t and y = √ (1+t) sin t in the equation of the line integral. ∫ C (y^e(−x) dx − e^( −x )dy) = ∫π1 [(√(1+t) sin t) e^(−e^t) (d/dt e^t) - e^(−e^t)(d/dt (√(1+t) sin t))] dt = ∫π1 (e^(−e^t) √(1+t) sin t e^t - e^(−e^t) cos t/2) dt
Step 4: To evaluate the integral from step 3, integrate using integration by parts u = sin t, dv = e^(-e^t)√(1+t)e^t dt.
du/dt = cos t, v = -(2/3)√(1+t)e^(-e^t) (e^t + 1).
∫π1 (e^(−e^t) √(1+t) sin t e^t - e^(−e^t) cos t/2)
dt = [- (2/3) √(1+t) e^(t-e^t)]π1 - [(2/3)∫π1 (1/2) e^(-e^t) cos t √(1+t) dt] + [(2/3) ∫π1 e^(-e^t) cos t/2 dt]
Therefore, the answer is [- (2/3) √(1+π) e^(π-e^π)] - [(2/3)∫π1 (1/2) e^(-e^t) cos t √(1+t) dt] + [(2/3) ∫π1 e^(-e^t) cos t/2 dt].
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which small digit represent M so that the number 2m234 and is divisible by 3
Answer:
m = 1
Step-by-step explanation:
A number is divisible by 3 if the sum of the digits is a multiple of 3
the given number is 2m234 and we are asked to find the smallest m
Adding up known digits gives 2 + 2 + 3 + 4 = 11
The next multiple of 3 is 12
So 11 + m = 12
m = 1
The other possibilities are
m = 4, m = 7
Pls help this is an exam question that chat GPT doesn't know :(
Answer:
A= 36, B=57, C=41, D=23 :)
Step-by-step explanation:
Clark is at a small arcade with some friends. Skeeball costs a quarter per game and air hockey costs 3 quarters per game. Clark has up to $10 to spend.
Answer:
10 \(\geq\) s*0.25 + a*0.75
Step-by-step explanation:
Assign variable for each game
s = number of Skeeball games
a = number of Air hockey games
Then write out what you know...
1. Total cost of Skeeball = s*0.25
2. Total cost of Air hockey = a*(3*0.25) -> a*0.75
So the inequality would be...
10 \(\geq\) s*0.25 + a*0.75
Can someone help me with this?
Consider the surface S parameterized by 1. Identify surface S. (enter a, b, c, d, or e) a. cylinder b. cone c. paraboloid d. sphere e. ellipsoid 2. Find the tangent plane to S at the point (1, 0, 3). Eq: z
1. To identify the surface S, we need to analyze the given equation. However, it seems that the equation is missing, as only "z" is mentioned. Please provide the complete equation for a more accurate identification.
2. Once the equation for surface S is provided, we can find the tangent plane at the point (1, 0, 3). To find the tangent plane, we need the gradient of the surface equation.
The gradient of the surface equation gives the direction of the normal vector to the surface at any point. The equation of the tangent plane can then be written as:
(x - x1)(∂f/∂x) + (y - y1)(∂f/∂y) + (z - z1)(∂f/∂z) = 0,
where (x1, y1, z1) is the given point and (∂f/∂x), (∂f/∂y), and (∂f/∂z) are the partial derivatives of the surface equation with respect to x, y, and z, respectively.
To find the tangent plane at (1, 0, 3), we need the equation of the surface S. Please provide the equation so that we can proceed with the calculation.
Please let me know if you have any further questions or if there's anything else I can assist you with.
The cost of a stereo cable was $14 yesterday. Today, the cost rose to $16. Find the percentage increase. Round your answer to the nearest tenth of a percent.
The percentage increase of the stereo cable is 14.2%
How to calculate the percentage increase of the stereo cable ?
The cost of the stereo cable yesterday is $14
The cost rose to $16
The first step is to calculate the increase
16-14
= 2
The percentage increase can be calculated as follows
increase/original price × 100
= 2/14 × 100
= 0.142 × 100
= 14.2
Hence the percentage increase is 14.2%
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Evaluate the geometric series What is the sum of the first eight terms of a geometric series whose first term is 3 and whose common ratio is 1/2?
A. 3/128
B. 255/128
C. 765/128
D. 255/256
Answer:255/256
Step-by-step explanation:
How do I simplify this?
a month with 31 days has the same number of mondays and wednesdays.how many of the seven days of the week could be the first day of this month?
Answer:
sunday and saturday i believe
Step-by-step explanation:
lmk if it helps! :)
Please help will give brainlist
Answer:
g(10) = 31
f(-3) = -2
h(2) = -7
j(7) = 333
j(3) = 17
I hope the last 2 were for the same function lol
What is the length of side PQ in this figure? Diagram shows triangle PQR with side QR labeled 5. A segment extends from top vertex Q to base PR at a right angle that divides into two parts, labeled 6 and 3.
The length of side PQ in the right-angled triangle is 2√3
What is a right-angled triangle?A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or anyone angle is a right angle.
Given is a triangle PQR,
To find the side PQ ; we need to first find the length of the given line segment which is perpendicular to side PR; let name it as QS.
Now, as Δ QSR is a right-angled triangle.
and the length of the side QR and SR is given, so using Pythagorean theorem we have
QR² = RS²+QS²
QS² = 5²-3²
QS² = 16
QS = 4
Now again Δ QSP is a right-angled triangle; so using Pythagorean theorem in Δ QSP we have
PQ² = QS²+PS²
PQ = 2√3
Hence, the length of side PQ is 2√3
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Answer: i think its B 14
Step-by-step explanation:
What is the like term, Coefficient and constants 4+4y+y+3
Answer:7+5y
Step-by-step explanation:
3+4=7
4y+y=5y
Round 7874 to the nearest 100
Answer:
7900 is the round off to the nearest hundred
PLEASE HELP, IVE BEEN STUCK ON THIS QUESTIon fOR 23 MINUTES , PLEASE INCLUD PART BIM GIVING ALL MY POINTS
Answer:
1:4 and 25%
Step-by-step explanation:
For every 4 items 1 medium sized item is bought. And that means that its 1/4 of all items bought, which can be converted to 25% medium items.
Solve using linear systems 2x-8y=10
X = 4y-5
The solution for the given linear equation as required in the task content is such that they have no solution.
What is the solution of the given linear systems?It follows from the task content that the solution of the given linear systems is to be determined.
The solution can be evaluated by first expressing each of the equations in slope intercept form so that we have;
y = (1/4)x - 5/4
y = (1/4)x + 5/4.
By observation, it follows that the slopes of the equations are equal and the y-intercepts are different.
Hence, the system represents parallel lines and the system has no solution.
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The system of equations has no solutions.
How to solve this system of equations?Here we have the system:
2x - 8y = 10
x = 4y - 5
x is already isolated in the second equation, so we can replace that in the first one, then we will get:
2*(4y - 5) - 8y = 10
8y - 10 - 8y = 10
-10 = 10
That is false, thus, the system of equations has no solutions.
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find the range of values that satisfy the inequality
\(2x - 3 < 7 \)
Answer:
=2x-3<7
=2x=7+3
=2x<10/2
=x=5
therfore x=5
range=1,2,3,4 5
Step-by-step explanation:
please mark me as brainliest
In a class of students, the following data table summarizes how many students have a
brother or a sister. What is the probability that a student who does not have a brother
has a sister?
Has a sister
Does not have a sister
Has a brother Does not have a brother
5
2
18
4
A student's probability of having a sister are 1/2 or 0.5 if they do not have a brother.
Using the above data table, we must determine the likelihood that a student without a brother also has a sister. Analysing the table now
has a sibling: 5
possesses no sisters: 2
has an 18-year-old brother
possesses no brothers: 4
We are looking for the likelihood that a student has a sister and neither a brother (as indicated by the statement "Does not have a brother"). In this instance, there are two children who do not have a brother but do have a sister, making that number the number of positive outcomes.
No matter whether a student has a sister or not, the total number of outcomes is equal to the number of students who do not have a brother. According to the table, there are 4 students without brothers.
As a result, the likelihood that a student who doesn't have a brother will have a sister can be determined as follows:
Probability is calculated as the ratio of the number of favourable outcomes to all possible outcomes.
Probability equals 2/4
Probability equals 0.5 or half.
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Find the equation of the axis of symmetry:
The equation of the axis of symmetry for the downward-facing parabola with a vertex at (2, 4) is simply x = 2.
Given is a downwards facing parabola having vertex at (2, 4), we need to find the axis of symmetry of the parabola,
To find the equation of the axis of symmetry for a downward-facing parabola, you can use the formula x = h, where (h, k) represents the vertex of the parabola.
In this case, the vertex is given as (2, 4).
Therefore, the equation of the axis of symmetry is:
x = 2
Hence, the equation of the axis of symmetry for the downward-facing parabola with a vertex at (2, 4) is simply x = 2.
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TRUE or FALSE: Squaring a number and taking the square root are opposites (they undo each other).
Answer:
True
Step-by-step explanation:
Take the square of 3, for example. The answer is 9. If you find its square root, the square root is 3, showing it is true.
Answer: True.
Step-by-step explanation: One thing to be careful of though is when solving equations. When you square values and square root them later, you are opening the door for extraneous solutions. But yes, Squaring and square rooting a value will undo the process and result in the original number.
what is 1/9 x 3 thanks
Answer:
it is 1/3
Step-by-step explanation:
also you can type (1/9)x3 into g o o g l e
pls mark brainliest (it is the crown)
Answer:
1/3
Step-by-step explanation:
3/9 = 1/3
have a great day!
Please check the attached picture, please answer thoroughly!
The selection depends on individual needs, preferences, and the intended use of the tiny house.
a) To find the amount of space inside each house, we need to calculate the volume for each design.
House on the left:
Volume = length x width x height = 2.5 m x 18 m x 2.8 m = 126 m³
Triangular house:
Volume of a triangular prism = (base area x height) / 2
Base area = (1/2) x base x height = (1/2) x 4 m x 10 m = 20 m²
Volume = (20 m² x 7 m) / 2 = 70 m³
b) When comparing the environmental impacts of each house, several factors need to be considered:
Positive impacts:
1. Material usage: Tiny houses use fewer materials, reducing resource consumption and waste generation.
2. Energy efficiency: Smaller living spaces require less energy for heating, cooling, and lighting, leading to lower energy consumption.
3. Land utilization: Tiny houses can be built on smaller plots of land, preserving green spaces and reducing urban sprawl.
Negative impacts:
1. Construction materials: Although tiny houses use less material overall, the environmental impact depends on the types of materials used. Sustainable and eco-friendly materials should be prioritized.
2. Water and waste management: Adequate provisions for water supply and waste disposal should be implemented to minimize environmental impacts.
3. Transportation: The transportation of tiny houses to their locations can contribute to carbon emissions if not done efficiently.
c) The choice of design for a tiny house depends on personal preferences and priorities. However, considering the provided information:
The house on the left offers a larger interior space of 126 m³, providing more room for living and storage. It may be suitable for individuals or couples who desire more space and functionality within their tiny house.
The triangular house has a smaller interior volume of 70 m³ but offers a unique design and aesthetic appeal. It may be preferred by individuals who prioritize a distinctive architectural style or who are looking for a minimalist and cozy living space.
Ultimately, the selection depends on individual needs, preferences, and the intended use of the tiny house. Factors such as lifestyle, desired amenities, and personal values regarding sustainability and resource conservation should be considered when making the final decision.
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Serial box manufacturer change the size of a box to increase the amount of cereal contains the expressions 10+6.3 n and 7 +6.5n where nis the number of smaller boxes are both representative of the amount of cereal that the new larger box contains how many more boxes equal the same amount of cereal in a larger box
To determine the number of smaller boxes that would contain the same amount of cereal as a larger box, we set the expressions representing the cereal content equal to each other. Solving the equation, we find that 15 smaller boxes are required to match the cereal quantity in the larger box.
To find the number of smaller boxes that equal the same amount of cereal in a larger box, we need to equate the two expressions and solve for n.
Setting the expressions equal to each other:
10 + 6.3n = 7 + 6.5n
Simplifying the equation:
6.3n - 6.5n = 7 - 10
-0.2n = -3
Dividing both sides by -0.2:
n = -3 / -0.2
n = 15
Therefore, 15 smaller boxes would equal the same amount of cereal as the larger box.
The problem states that the expressions 10 + 6.3n and 7 + 6.5n represent the amount of cereal in the new larger box. The variable n represents the number of smaller boxes.
To find how many smaller boxes are equivalent to the larger box, we need to set the two expressions equal to each other and solve for n. This equation represents the balance between the amount of cereal in the larger box and the combined amount of cereal in the smaller boxes.
By simplifying the equation and solving for n, we find that 15 smaller boxes are needed to equal the same amount of cereal as the larger box.
This means that if the cereal manufacturer wants to package the same amount of cereal as the larger box, they would need to use 15 smaller boxes instead. This calculation helps the manufacturer determine the number of smaller boxes needed to maintain the same quantity of cereal while changing the box size.
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BRAINLIEST IF YOU GIVE ME CORRECT ANSWER
Answer:
The 1st answer.
Step-by-step explanation:
1. Find the quotient to 1/3 ÷ 3/4
Your quotient should be 4/9
2. Solve all of the expressions
1st answer choice product: 4/9
2nd answer choice product: 4
3rd answer choice product: 2 1/4
4th answer choice product: 1/4
3. The only answer that was equivalent to 1/3 ÷ 3/4 was answer choice 1 therefore the first answer choice was the correct answer choice.
These tables represent the relationships between x and y for two different sets of data. Which statements correctly describe the relationships between x and y for each table? Table A represents a multiplicative relationship because y is 2.5 times x, O and Table B represents an additive relationship because y is 2 more than O X. Table A represents an additive relationship because y is 1.5 more Othan x, and Table B represents a multiplicative relationship because y is 3 times x. Both data sets represent multiplicative relationships. In Table A, y is 2.5 times x, and in Table B, y is 3 times X. Both tables represent additive relationships. In Table A, y is 1.5 more than x, and in Table B, y is 2 more than x.
Answer:
Both data sets represent multiplicative relationships. In Table A, y is 2.5 times x, and in Table B, y is 3 times X
Step-by-step explanation:
Self-explanatory
Every value of y in Table A is 2.5 times x value
and
every value of y in table B is 3 times x value