SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Use a probability tree to show the possible outcomes for flipping a coin 3 times
STEP 2: Write the required number of outcomes
\(\begin{gathered} number\text{ of total outcomes}=8 \\ All\text{ heads}=(HHH) \\ n(All\text{ heads\rparen}=1 \end{gathered}\)STEP 3: Calculate the probability of getting all heads
\(\begin{gathered} Probability(All\text{ heads\rparen}=\frac{number\text{ of All head}}{number\text{ of total outcomes}} \\ Pr(All\text{ heads\rparen}=\frac{1}{8} \end{gathered}\)Hence, the probability of getting all heads when flipping a coin 3 times is 1/8
Help me step by step plz
Answer:
x=-6
Step-by-step explanation:
Divide both sides by -4
You will get an answer of x=-6.
Slope Intercept Form:
put the equation in slope intercept form.
14x = 6y - 12
Answer:
y = 7/2x + 2
Step-by-step explanation:
To put the equation in slope intercept form [ y = mx + b ], we need to solve for y.
14x = 6y - 12
~Subtract 6y to both sides
14x - 6y = -12
~Subtract 14x to both sides
-6y = -12 - 14x
~Divide -6 to everything
y = 2 + 7/3x
~Reorder
y = 7/2x + 2
Best of Luck!
y =
the solution to the
You can use the interactive
-2x +2y = -4
3x + 3y = -18
Answer:
ur welcoem
Step-by-step explanation:
the area of the bottom of a triangular upright prism is 4 cm2 and the areas of the sides are 9 cm2, 10 cm2 and 17 cm2. calculate the volume of the prism
To calculate the volume of a triangular prism, you need to know the base area and the height. In this case, the base area is given as 4 cm^2, and the areas of the sides are given as 9 cm^2, 10 cm^2 and 17 cm^2.
To find the volume of the prism, you can use the formula:
Volume = Base Area x Height
Since we don't know the height of the prism, we can use the area of the sides to find the height.
To find the height, we need to use the formula of area of the triangle.
Area = (1/2) x b x h
let's use the area of one side (for example 9cm^2)
9cm^2 = (1/2) x b x h
we can divide both sides by (1/2) x b
h = (2 * 9cm^2) / b
Now we have the height of the triangular prism, so we can use that to find the volume.
so the volume of the triangular prism = Base Area x Height = 4cm^2 x ( (2 * 9cm^2) / b) = 72/b cm^3
As we don't know the value of b, we can't find the exact volume of the prism.
Answer:
12 cm³
Step-by-step explanation:
Conditions:
a * h = 9 cm
b * h = 10 cm
c * h = 17 cm
S = 4 cm²
To calculate the area on three sides, we use the Heron formula:
\(S = \sqrt{p * (p-a) *(p-b)*(p-c)\)
where "p" is the semi-perimeter:
\(p = \frac{(a+b+c)}{2}\)
Let's express the sides in terms of the height:
a = 9/h
b = 10/h
c = 17/h
Then the semiperimeter will be:
p = (9/h+10/h+17/h) : 2 = 36/h : 2 = 18/h
Substituting the values into the Heron formula:
4 = √(18/h * (18/h - 9/h) * (18/h - 10/h) * (18/h - 17/h))
4² = 18/h * (18/h - 9/h) * (18/h - 10/h) * (18/h - 17/h)
16 = 18/h * 9/h * 8/h * 1/h
16 = 1296 / h^4
h^4 = 1296 / 16 = 81
h = 3 cm
Now we can calculate the volume of the pyramid:
V = S * h = 4 cm² * 3 cm = 12 cm³
If you think my answer is the best, please mark it as the Brainliest.
Thank you! :))
ASAP!! Photo attached
Answer:
FG = 120 cm
Step-by-step explanation:
The explanation is in the picture!
Please help I’ll give brainliest
Answer:
1a) 0.1 cm = 1 mm
When converting centimeters to milimeters, multiply the length value by 10.
1b) 25000 mm = 25 m
When converting milimeters to meters, divide the length value by 1000.
1c) 7g = 0.007 kg
When converting grams to kilograms, divide the mass value by 1000.
1d) 30000 ml = 0.03 kl
When converting milimeters to kilometers, divide the volume value by 1000000.
Round your answer to the nearest hundredth.
Answer:
33.69
Step-by-step explanation:
Answer:
Step-by-step explanation:
tan (?) = 2/3
On the calculator do tan^(-1)=2/3
you get around 33.69 degrees
Martha is in a hot air balloon that has risen straight up from the launch point. Matthew is standing on the ground, 16
meters away from the launch point. If Martha and Matthew are 20 meters apart, how high has the balloon risen?
Matthew
4 meters
12 meters
36 meters
144 meters
Therefore, the balloon has risen 12 meters. So the answer is 12 meters based on how high it is.
In this problem, Martha is in a hot air balloon that has risen straight up from the launch point. Matthew is standing on the ground, 16 meters away from the launch point. If Martha and Matthew are 20 meters apart, we need to calculate how high the balloon has risen.
The word "high" has no particular meaning or connotation in mathematics. It is a subjective, ambiguous term that might have varied meanings depending on the situation. However, "high" can also refer to a value that is more than or over a predetermined threshold in some mathematical situations. For instance, a high prime number in the study of numbers could be any prime number greater than a given amount. It's vital to keep in mind that, in order to promote clear communication and understanding, it is typically preferable to use exact and well-defined terminology while describing mathematical topics.
We can use the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.Let h be the height that the balloon has risen. Then we have a right-angled triangle with hypotenuse 20 meters and one side 16 meters (the distance from Matthew to the launch point) and the other side h meters (the height that the balloon has risen).
So we have:\($$20^2 = 16^2 + h^2$$$$400 = 256 + h^2$$$$h^2 = 400 - 256 = 144$$\)
Taking the square root of both sides, we get:\($$h = \sqrt{144} = 12$$\)
Therefore, the balloon has risen 12 meters. So the answer is 12 meters.
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Which equation represents the line that is perpendicular to the line 5x 2y =- 6?
The equation represents the line that is perpendicular to the line 5x - 2y =- 6 is y + 4 = -(2/5)(x - 5).
What is the slope-intercept form?
The equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept.
Here, we have
The lines of the equations
Ax + By = C1
and Bx - Ay = C2 are perpendicular. Therefore, a line perpendicular to 5x - 2y = -6 must take the standard form 2x + 5y = C.
Substituting x = 5, y = -4, we get
C = 2(5) + 5(-4) = 10 - 20 = -10.
Thus, 2x + 5y = -10 is the correct choice.
This can be rewritten in slope-intercept form:
2x + 5y = -10
2x + 5y - 2x = -10 - 2x
5y = -2x - 10
5y / 5 = (-2x - 10) /5
y = -(2/5) x - 2
Its point-slope form is
y - y1 = m(x - x1)
y + 4 = -(2/5)(x - 5)
Hence, the equation represents the line that is perpendicular to the line 5x - 2y =- 6 is y + 4 = -(2/5)(x - 5).
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Use the grouping method to factor x³ + x² + 3x+3.
A. (x²+1)(x+3)
B. x(x+3)(x + 1)
C. (x + 1)(x+3)
D. (x + 1)(x2+3)
Answer:
D. \((x + 1)(x^2 + 3)\)
Step-by-step explanation:
Hello!
We can group the first two terms and the last two terms.
Factor by Grouping\(x^2 + x^2 + 3x + 3\)\(x^2(x + 1) + 3(x + 1)\)\((x^2 + 3)(x + 1)\)Factoring by grouping is the process of breaking down larger polynomials to smaller ones to factor. We can then combine like factors.
In the second step, we can see that we can rewrite \(x^3 + x^2\) as \(x^2(x + 1)\), as both the two terms share a common factor of \(x^2\). We can pull out \(x^2\) from that expression. Similarly, \(3x\) and \(3\) share a common factor of \(3\), so we can pull that out.
PLEASE HELP 20 POINTS
Classify each graph as either linear or non-linear.
Answer:
The first, second, and fourth graphs are linear. The third graph is nonlinear.
Step-by-step explanation:
A linear graph is a graph that forms a straight line. A linear graph is a graph that curves or bends.
Hope u can help a girl out-
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
A.
Step-by-step explanation:
First up, chill a bit xd
So hot dog = x
Drink = y
2 hot dogs = 2x
2 drinks = 2y
2x + 2y = 4.75
3 hot dogs = 3x
1 drink = y
3x + y = 7.75
The length of a rectangle is three times its width and its perimeter is 120 feet.
What are the dimensions?
Answer: Width = 45 feet; Length = 15 feet;
Step-by-step explanation: Start by substituting 3w for the length because it says that in the problem. We know that 2(L+W) equals the perimeter. Since we substituted 3w for length we get 8w for the perimeter. Divide 120 by 8 to find that the width is 15 feet and plug it into 3w to get the length of 45 feet.
Answer:
45 feet and 15 feet are the length and width
Step-by-step explanation:
P = 120 feet
a (length) = 3 * b (width)
P = 2 * (a + b)
P = 2 * (3b + b)
P = 2 * 4b
P = 8 * b
=> 8b = 120 feet
P = 120 feet
b = 120 / 8
b = 15 feet
a = 3 * b
a = 3 * 15
a = 45 feet
Today only, a sofa is being sold at a 35% discount. The sale price is $559.
What was the price yesterday?
Answer:
195.65
Step-by-step explanation:
Answer:
100%-29% = 71%
568/0.71 = 800
price was $800
Step-by-step explanation:
If I'm wrong I'm sorry
If I'm right Thank you and (Brainliest plz )
A philanthropic organization sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 5080 donations.(a) Give a 99% confidence interval for the true proportion of those from their entire mailing list who may donate.(b) A staff member thinks that the true rate is 5%.
Given the confidence interval you found, do you find that rate plausible?
(a) What is the 99% confidence interval?
The 99% confidence interval is from ___% to ___%.
(Round to two decimal places as needed.)
Part 2
(b) Given the confidence interval you found, is the proposed true rate, 5%, plausible?
Yes or No
(a) The 99% confidence interval for the true proportion of potential donors who may donate is from 5.04% to 5.12%.
(b) No, the proposed true rate of 5% is not plausible given the confidence interval.
What is the 99% confidence interval for potential donor proportion?(a) To calculate the 99% confidence interval for the true proportion of potential donors who may donate, we can use the formula for a confidence interval for a proportion:
CI =\(\hat p \pm z * \sqrt((\hat p * (1 - \hat p)) / n)\)
\(\hat p\) is the sample proportion (5080/100,000 = 0.0508),
z is the z-score corresponding to the desired confidence level (99% confidence level corresponds to a z-score of approximately 2.576),
and n is the sample size (100,000).
Now we can substitute the values into the formula to calculate the confidence interval:
\(CI = 0.0508 \pm 2.576 * \sqrt((0.0508 * (1 - 0.0508)) / 100,000)\)
Simplifying the expression inside the square root:
\(\sqrt((0.0508 * (1 - 0.0508)) / 100,000)\) ≈ 0.000159
Substituting back into the formula:
CI = 0.0508 ± 2.576 * 0.000159
Calculating the confidence interval:
CI ≈ (0.0508 - 2.576 * 0.000159, 0.0508 + 2.576 * 0.000159)
≈ (0.0504, 0.0512)
Therefore, the 99% confidence interval for the true proportion of potential donors who may donate is approximately 0.0504 to 0.0512, or 5.04% to 5.12%.
Is the proposed rate of 5% plausible within the confidence interval?(b) The proposed true rate is 5%. Comparing it with the confidence interval we calculated, we can see that the entire confidence interval falls within the range of 5.04% to 5.12%.
Therefore, the proposed true rate of 5% is plausible based on the given confidence interval.
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Complete the square to re-write the quadratic function in vertex form:
Answer:
(x+2)^2 - 6
Step-by-step explanation:
How would you suggest that managers avoid the quick-fix mentality that makes management by best-seller so tempting?
You can suggest that managers should avoid the quick-fix mentality that makes management by best-seller so tempting by implementing the following strategies:
1. Understand the Unique Nature of Your Business: Managers should take the time to understand the unique nature of their business. They should realize that what worked for another company may not work for their own company.
2. Avoid Short-Term Solutions: Managers should avoid short-term solutions that provide quick results. They should focus on long-term solutions that will benefit the organization in the long run.
3. Develop a Comprehensive Strategy: Managers should develop a comprehensive strategy that includes long-term goals and objectives. They should also have a plan in place to achieve those goals.
4. Invest in Employee Development: Managers should invest in employee development by providing training and development opportunities. This will help to build a strong workforce that is capable of handling complex challenges.
5. Encourage Collaboration: Managers should encourage collaboration among team members. This will help to create a culture of teamwork and cooperation.
6. Monitor Progress: Managers should monitor progress and adjust strategies as necessary. This will help to ensure that the organization is on track to achieving its goals.
By following these strategies, managers can avoid the quick-fix mentality that makes management by best-seller so tempting. They can focus on long-term solutions that will benefit the organization in the long run.
Hope this helped you...
I suck at math so please help :)
Answer:
the answer to this question is
B. 1/2
hope this helps u
Leena consumes 400 calories at breakfast and 350 calories at lunch. She consumes StartFraction 2 Over 3 EndFraction. of her daily calories at dinner. If x represents the calories consumed at dinner, which statements describe the situation? Check all that apply. Leena consumed 1,500 calories at dinner. The equation StartFraction 2 Over 3 EndFraction left-parenthesis x plus 400 plus 350 right-parenthesis equals x.(x + 400 + 350) = x can be used to model the situation. Leena consumed 500 calories at dinner. The equation StartFraction 2 Over 3 EndFraction left-parenthesis x right-parenthesis equals x left-parenthesis 400 plus 300 right-parenthesis.(x) = x(400 + 300) can be used to model the situation. Leena consumed 1,000 calories at dinner. The equation StartFraction 2 Over 3 EndFraction x left-parenthesis x plus 400 plus 350 right-parenthesis equals x.x(400 + 300) = x can be used to model the situation.
Answer:
The two answers are
(a) Leena consumed 1,500 calories at dinner.
(b) The equation 2/3 (x+400+350)= x can be used to model the situation.
Step-by-step explanation:
Answer:
A)Leena consumed 1,500 calories at dinner.
B)The equation StartFraction 2 Over 3 EndFraction left-parenthesis x plus 400 plus 350 right-parenthesis equals x.(x + 400 + 350) = x can be used to model the situation.
Step-by-step explanation:
(12x - 1.7) - (17x + 6.7) =
Answer:
-5x-8.14 is the correct answer
Step-by-step explanation:
First distribute the terms
12x - 1.7 - 17x -6.7 =
Then add/subtract similar terms
12x - 17x = -5x
-1.7 -6.7 = -8.14
so it's -5x -8.14
:)
Answer: -5x-8.4
Step-by-step explanation:
\(\left(12x-1.7\right)-\left(17x+6.7\right)\)
remove the parentheses
\(12x-1.7-17x-6.7\)
Simplify
Group like terms
\(12x-17x-1.7-6.7\)
Add
\(12x-17x=-5x=\)
\(-5x-1.7-6.7\)
Subtract
\(-1.7-6.7=-8.4\)
= \(-5x-8.4\)
Please help me!!
A. 2 and 4 only
B. all of them
C. 1 only
D. 2, 3, 4, only
Answer:
D
Step-by-step explanation:
Supplementary means 180 degree. Thus, you have to find the two angle that equals 180.
Answer:
I think it is 1 only [B.]
Step-by-step explanation:
I'm not sure, but I hope this helps!
The cost of 4kg of kale and 1.5 kg of beetroot is 12.20
The cost of 5kg of kale and 2kg of beetroots is 15.40 work out the cost of 1kg of beetroot and 1kg of kale
The cost of 1 kg of beetroot and 1 kg of kale are 1.39 units and 2.53 units respectively
How to find the cost of beetroot and Kale?The cost of 4kg of kale and 1.5 kg of beetroot is 12.20. The cost of 5kg of kale and 2kg of beetroots is 15.40.
The cost of 1kg of beetroot and 1kg of kale can be found as follows:
Therefore,
let
x = cost of 1kg of beetroot
y = cost of 1 kg of Kale
Therefore, using equation,
1.5x + 4y = 12.20
2x + 5y = 15.40
x = 12.20 / 1.5 - 4y / 1.5
x = 8.13 - 2.67y
Hence,
5y = 15.40 - 2(8.13 - 2.67y)
5y = 15.40 - 16.26 + 5.34y
5y = -0.86 + 5.34y
5y - 5.34y = -0.86
- 0.34y = - 0.86
y = - 0.86 / - 0.34
y = 2.52941176471
y = 2.53
1.5x = 12.20 - 4(2.53)
1.5x = 12.20 - 10.12
1.5x = 2.08
x = 2.08 / 1.5
x = 1.38666666667
x = 1.39
Therefore,
cost of 1kg of beetroot ≈ 1.39
cost of 1 kg of Kale = 2.53
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Graph each system and determine the number of solutions that it has. If it has one solution, name it. I only need help with B.
1 solution: (-1,-3)
1) Since we are going to solve these systems graphically, let's begin by setting one pair of t-tables:
b) 2x-y=1, y=-3
2x-y=1 ⇒-y= 1 -2x ⇒ y=2x-1
Now, let's plot those points and trace one increasing line for the first one, and one horizontal line for the constant function y=-3
2) Plotting that system, we can tell the solution is the common point to both equations:
Thus, the answer is (-1,-3)
PLEASE HELP, I NEED THIS OR I WILL FAIL MY CLASS PLZZZZ.
30 POINTS AND BRANNIEST
( PLEASE SHOW WORK OR I MIGHT NOT GIVE BRAINIEST )
Answer:
median then mean then range
The functions f(x) and g(x) are shown on the graph.f(x) = 2xWhat is g(x)?y5f(x)X-55g(x)
We know that
\(f(x)=2^x\)So, we can see that g(x) is f(x) reflected in the x-axis. But, it has another change which is a downward movement in 3 units.
So, we can deduce that
\(g(x)=-2^x-3\)Sketch of the situation:
When you reflect f(x) in the x-axis, you obtain something like -f(x).
We can see that -f(x) intersect the y-axis in -1. But, g(x) intersect the y-axis in -4.
So, we need to move the function 3 units down. Whe we make the movement the graph will intersect the y-axis in -4 because -1-3=-4.
A force of 100N is creating 20Pa of pressure on a surface. Calculate the area of the surface
The area of the surface would be,
Area = 5
We have to given that,
A force of 100N is creating 20Pa of pressure on a surface.
Here,
Force = 100 N
Pressure = 20 Pa
Since, We know that,
Pressure = Force / Area
Substitute all the values, we get;
20 = 100 / Area
Area = 100 / 20
Area = 5
Thus, The area of the surface would be,
Area = 5
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For the D3d point group: What irreducible representations are symmetric about principle Cn? What irreducible representations are antisymmetric to inversion? What are the two dimensional (doubly degenerate) irreducible representations? What irreducible representations contain the x, y, and z axis rotations?
The irreducible representations symmetric about principle Cn in the D3d point group are A1, A2, and E. The irreducible representations antisymmetric to inversion are A1 and A2. The two-dimensional irreducible representations are E. The irreducible representations containing the x, y, and z axis rotations are A1 and E.
In the D3d point group, the irreducible representations that are symmetric about the principal axis Cn are denoted as A1, A2, and E. These representations exhibit the same behavior under rotation about the Cn axis. A1 and A2 representations are also antisymmetric to inversion, meaning that their wavefunctions change sign upon inversion. On the other hand, E is a two-dimensional (doubly degenerate) irreducible representation, which means it has two distinct wavefunctions that transform into each other under the symmetry operations of the D3d group.
The irreducible representations containing the x, y, and z axis rotations are A1 and E. These representations possess elements of symmetry corresponding to rotations around the x, y, and z axes. The A1 representation is a one-dimensional representation, while the E representation is two-dimensional. The two-dimensional nature of E implies that it has two wavefunctions that transform differently under the symmetry operations of the group.
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At a sale, the price of a washing machine
was reduced by 12% to $440. What was the original price of the washing machine?
Answer:
$500
Step-by-step explanation:
100-12=88
88/100=440/x
88x=100(440)
88x=44000
/88. /88
x=500
hopes this helps
(Finding constants) For functions f(n)=0.1n 6
−n 3
and g(n)=1000n 2
+500, show that either f(n)=O(g(n)) or g(n)=O(f(n)) by finding specific constants c and n 0
for the following definition of Big-Oh: Definition 1 For two functions h,k:N→R, we say h(n)=O(k(n)) if there exist constants c>0 and n 0
>0 such that 0≤h(n)≤c⋅k(n) for all n≥n 0
Either f(n)=O(g(n)) or g(n)=O(f(n)) since f(n) can be bounded above by g(n) with suitable constants.
To show that either f(n) = O(g(n)) or g(n) = O(f(n)), we need to find specific constants c > 0 and n_0 > 0 such that 0 ≤ f(n) ≤ c * g(n) or 0 ≤ g(n) ≤ c * f(n) for all n ≥ n_0.
Let's start by considering f(n) = 0.1n^6 - n^3 and g(n) = 1000n^2 + 500.
To show that f(n) = O(g(n)), we need to find constants c > 0 and n_0 > 0 such that 0 ≤ f(n) ≤ c * g(n) for all n ≥ n_0.
Let's choose c = 1 and n_0 = 1.
For n ≥ 1, we have:
f(n) = 0.1n^6 - n^3
≤ 0.1n^6 + n^3 (since -n^3 ≤ 0.1n^6 for n ≥ 1)
≤ 0.1n^6 + n^6 (since n^3 ≤ n^6 for n ≥ 1)
≤ 1.1n^6 (since 0.1n^6 + n^6 = 1.1n^6)
Therefore, we have shown that for c = 1 and n_0 = 1, 0 ≤ f(n) ≤ c * g(n) for all n ≥ n_0. Hence, f(n) = O(g(n)).
Similarly, to show that g(n) = O(f(n)), we need to find constants c > 0 and n_0 > 0 such that 0 ≤ g(n) ≤ c * f(n) for all n ≥ n_0.
Let's choose c = 1 and n_0 = 1.
For n ≥ 1, we have:
g(n) = 1000n^2 + 500
≤ 1000n^6 + 500 (since n^2 ≤ n^6 for n ≥ 1)
≤ 1001n^6 (since 1000n^6 + 500 = 1001n^6)
Therefore, we have shown that for c = 1 and n_0 = 1, 0 ≤ g(n) ≤ c * f(n) for all n ≥ n_0. Hence, g(n) = O(f(n)).
Hence, we have shown that either f(n) = O(g(n)) or g(n) = O(f(n)).
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