The spinner shown has six equal-size sections and is spun twice.
What is the probability that the sum of the numbers spun is 4? Express as a percent rounded to the nearest tenth if necessary.
Therefore , the solution of the given problem of probability comes out to be the likelihood of obtaining a sum of 4 is about 8.3%.
What is probability?Calculating the likelihood that a claim is true or that a specific event will occur is the primary objective of the branch of mathematics known as parameter estimation. Chance can be represented by any number between 0 and 1, at which 1 usually represents certainty and 0 typically represents possibility. A probability diagram shows the chance that a specific event will occur.
Here,
There are a total of 6 x 6 = 36 results when the spinner is spun twice because there are six sections on it, each with a number from 1 to 6.
We can make a list of every result and determine how many times the sum is 4:
=> 1, 3
=> 2, 2
=> 3, 1
There are three results, and their total is 4. As a result, 3/36 = 1/12 is the chance of receiving a sum of 4. We can multiply this by 100 and tenth it to represent it as a percentage:
=> 1/12 x 100 ≈ 8.3
In other words, the likelihood of obtaining a sum of 4 is about 8.3%.
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Given that,
x + 1: 3y = 1:7 and 2x : y + 3 = 2:5
Find x and y
The value of 'x' and 'y' in x + 1 : 3y = 1 : 7 and 2x : y + 3 = 2 : 5.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
We know, We can write a : b as, a/b.
Therefore, The given equations can be formed as,
(x + 1)/3y = 1/7 and 2x/(y + 3) = 2/5.
7x + 7 = 3y.
7x - 3y = - 7...(i)
And,
10x = 2y + 6.
10x - 2y = 6...(ii)
Now, Multiplying eqn(i) by 10 and (ii) by 7 we have,
70x - 30y = - 70...(iii) and 70x - 14y = 42...(iv)
Now, By Subtracting (iii) and (iv) we have,
- 16y = - 112
y = 7 and hence x = 2
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Which of these is a pythagorean triple?
20, 48, 52
10, 26, 89
1, 2, 3
15, 18, 21
Answer:
Step-by-step explanation: the answer is 20, 48, 52
Lennox Madrid Polynomial Long Division (Level 1) Feb 18, 1:52:23 PM Use the long division method to find the result when 2x^(3)+4x^(2)+7x+5 is divided by x+1.
The result of the given polynomial division (2x^(3)+4x^(2)+7x+5 divided by x+1) using long division method is 2x^(2) + 2x + 5.
To find the result of the given polynomial division using long division method, we need to follow the steps below:
Step 1: Write the dividend and the divisor in long division form.
______________________
x + 1 | 2x^(3) + 4x^(2) + 7x + 5
Step 2: Divide the first term of the dividend by the first term of the divisor. In this case, 2x^(3)/x = 2x^(2). Write the result above the dividend.
2x^(2) _______________
x + 1 | 2x^(3) + 4x^(2) + 7x + 5
Step 3: Multiply the result by the divisor and write the product under the dividend.
2x^(2) _______________
x + 1 | 2x^(3) + 4x^(2) + 7x + 5
- (2x^(3) + 2x^(2))
---------------------
Step 4: Subtract the product from the dividend and bring down the next term.
2x^(2) _______________
x + 1 | 2x^(3) + 4x^(2) + 7x + 5
- (2x^(3) + 2x^(2))
---------------------
2x^(2) + 7x + 5
Step 5: Repeat the process until the degree of the remainder is less than the degree of the divisor.
2x^(2) + 2x + 5 _______________
x + 1 | 2x^(3) + 4x^(2) + 7x + 5
- (2x^(3) + 2x^(2))
---------------------
2x^(2) + 7x + 5
- (2x^(2) + 2x)
---------------------
5x + 5
- (5x + 5)
---------------------
0
Step 6: Write the final result as the quotient plus the remainder over the divisor.
[tex](2x^{3} + 4x^{2} + 7x + 5)/(x + 1) = 2x^{2} + 2x + 5[/tex]
Therefore, the answer is 2x^(2) + 2x + 5
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On a bicycle, Kiara rides for 6 hours and is 26 miles from her house. After riding for 9 hours, she is 38 miles away. What is Kiara's rate?
Kiara's rate is 4 miles per hour. Take note that this simply asks for her current rate, not an average rate.
To find Kiara's rate at the 9-hour mark, we can subtract the distance she has traveled so far (26 miles) from the total distance (38 miles) to get the distance she traveled in the last 3 hours, which is 12 miles.
Then, we can divide the distance she traveled in the last 3 hours by the time taken (9 - 6) to get her rate:
Kiara's rate: 12/3Kiara's rate: 4 miles per hour.Therefore, Kiara's current rate is 4 miles per hour.
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Find the length of the segment indicated. Round your answer to the nearest tenth if necessary.
The length of the segment indicated is 10.6.
What is Pythagoras' theorem?Pythagoras discovered that the square of the hypotenuse in a right-angled triangle with a 90° angle is equal to the sum of the squares of the other two sides.
The triangle has three sides: the hypotenuse, which is always the longest, the opposite, which doesn't touch the hypotenuse, and the adjacent (which is between the opposite and the hypotenuse).
By Pythagoras' theorem;
a² + b² = c²
a= 16.4
b= 12.5
c =?
16.4² + 12.5² = c²
c² = 268.96 - 156.25 = 112.4
c² = 112.4
c = √112.4
c= 10.6
Therefore, the length of the segment indicated is 10.6.
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Select the correct answer. A company sells bikes that are light and fast. The revenue earned over a period of x years can be represented by the function, . The cost of manufacturing the bikes can be represented by the function, . Which function, , describes the profit earned from the sales of the bikes over a period of x years? A. B. C. D.
The function that describes the profit earned from the sales of the bikes over a period of x years is: [tex]P(x) = 100x^3 + 6x^2 + 9x[/tex]. The Option A is correct.
Which function describes the profit earned from the sales of the bikes?The profit earned from the sales of the bikes can be calculated by subtracting the cost of manufacturing from the revenue earned. Therefore, the function that describes the profit earned can be represented as:
[tex]P(x) = S(x) - C(x)[/tex]
Substituting the given functions for S(x) and C(x), we get:
[tex]P(x) = (100x^3 + 6x^2 + 97x + 215) - (88x + 215)[/tex]
Simplifying this expression, we get:
[tex]P(x) = 100x^3 + 6x^2 + 9x.[/tex]
Full question "A company sells bikes that are light and fast. The revenue earned over a period of x years can be represented by the function, S(x) = 100x3 + 6x2 + 97x + 215. The cost of manufacturing the bikes can be represented by the function, C(x) = 88x + 215. Which function, P(x), describes the profit earned from the sales of the bikes over a period of x years?"
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Given thatf(x)=x2−3andg(x)=−5x+2, find(gt)(52), if it exists. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A.(gf)(52)=B. The value for(gf)(52)does not exis
From function f(x)=x2−3andg(x)=−5x+2,The correct answer is A. (gf)(52)= -6.75
A function in mathematics from a set X to a set Y allocates exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively. Initially, functions represented the idealized relationship between a variable quantity and another variable quantity.
To find (gf)(52), we first need to find f(52) and then substitute that value into g(x).
First we need to Find f(52)
f(x)=x2−3
f(52)=(52)2−3
f(52)=52−3
f(52)=1.75
Then we can Substitute f(52) into g(x)
g(x)=−5x+2
g(f(52))=−5(1.75)+2
g(f(52))=−8.75+2
g(f(52))=−6.75
Therefore, (gf)(52)=−6.75
The final answer is A. (gf)(52)=−6.75
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PLS HELP!! "What is the area of the shaded region"
Answer: 64.24 cm square
Step-by-step explanation:
length x width
11 x 7 = 77cm square
The radius of the circle is 2cm
The area of the circle =
r^2 = 2^2 12.57
Hence the area of the shaded region=
Area of rectangle – area of circle= 77 – 12.57= 64.43 cm2
Vn=CBS (tn, Sn) - Sn
(a) (8 points) Find the formula for the delta-loss operator and the delta-gamma loss operator if the risk factor changes are chosen to be the log returns of S. In your calculation the Greeks C, CBS, CBS should appear as parameters.
The formula for the delta-loss operator and the delta-gamma loss operator if the risk factor changes are chosen to be the log returns of S is ΔΓL = (1/2) * CBS * (tn - ln(Sn/Sn-1))².
The delta-loss operator is given by the formula: ΔL = CBS * (tn - Sn). This represents the change in loss for a given change in the underlying risk factor, S.
The delta-gamma loss operator is given by the formula: ΔΓL = (1/2) * CBS * (tn - Sn)²s represents the change in loss for a given change in the underlying risk factor, S, and also takes into account the curvature of the loss function.
To find the formula for the delta-loss operator and the delta-gamma loss operator if the risk factor changes are chosen to be the log returns of S, we can simply substitute the log returns of S for the risk factor changes in the formulas above. The log returns of S are given by the formula: ln(Sn/Sn-1).
So, the formula for the delta-loss operator with log returns of S is: ΔL = CBS * (tn - ln(Sn/Sn-1)). And the formula for the delta-gamma loss operator with log returns of S is: ΔΓL = (1/2) * CBS * (tn - ln(Sn/Sn-1))².
In these formulas, the Greeks C, CBS, and CBS appear as parameters, as requested. These parameters represent the sensitivity of the option value to changes in the underlying risk factor, S.
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4) (5 pts) After ensuring that the determinant of the coefficient matrix is not zero, write down the matrix equation Ax = b for the set of linear equations, clearly indicating the matrices involved. Perform row operations on the augmented matrix [A|I] to find the inverse of matrix A. Use class/video conventions to indicate row operations. If you use any other conventions you will receive 0 points even if your answer is correct. Perform matrix multiplication A −1b to get values of variables x, y, and z.
-3x + (0)y - 6z = 11
(5)x - 2y + 3z = 17
2x - y - (7)z = -3
The values of the variables are x = 23, y = 41/3, and z = -22/3.
The matrix equation Ax = b for the given set of linear equations is:
```
| -3 0 -6 | | x | | 11 |
| 5 -2 3 | * | y | = | 17 |
| 2 -1 -7 | | z | | -3 |
```
Where A is the coefficient matrix, x is the column matrix of variables, and b is the column matrix of constants.
To find the inverse of matrix A, we perform row operations on the augmented matrix [A|I]:
```
| -3 0 -6 | 1 0 0 |
| 5 -2 3 | 0 1 0 |
| 2 -1 -7 | 0 0 1 |
```
First, we divide the first row by -3:
```
| 1 0 2 | -1/3 0 0 |
| 5 -2 3 | 0 1 0 |
| 2 -1 7 | 0 0 1 |
```
Then, we subtract 5 times the first row from the second row, and 2 times the first row from the third row:
```
| 1 0 2 | -1/3 0 0 |
| 0 -2 -7 | 5/3 1 0 |
| 0 -1 -3 | 2/3 0 1 |
```
Next, we divide the second row by -2:
```
| 1 0 2 | -1/3 0 0 |
| 0 1 7/2 | -5/6 -1/2 0 |
| 0 -1 -3 | 2/3 0 1 |
```
And then we add the second row to the third row:
```
| 1 0 2 | -1/3 0 0 |
| 0 1 7/2 | -5/6 -1/2 0 |
| 0 0 1/2| 1/6 -1/2 1 |
```
Finally, we divide the third row by 1/2, and subtract 2 times the third row from the first row, and 7/2 times the third row from the second row:
```
| 1 0 0 | 0 1 -2 |
| 0 1 0 | -4/3 2 -7/2|
| 0 0 1 | 1/3 -1 2 |
```
So, the inverse of matrix A is:
```
| 0 1 -2 |
| -4/3 2 -7/2|
| 1/3 -1 2 |
```
Now, we can perform matrix multiplication A^-1b to get the values of the variables:
```
| 0 1 -2 | | 11 | | x |
| -4/3 2 -7/2| * | 17 | = | y |
| 1/3 -1 2 | | -3 | | z |
```
```
| x | | 1(17) + (-2)(-3) | | 23 |
| y | = | (-4/3)(11) + 2(17) + (-7/2)(-3) | = | 41/3 |
| z | | (1/3)(11) + (-1)(17) + 2(-3) | = | -22/3 |
``
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About 24% of a population are of a particular ethnic group. 210 people are randomly selected from this population. Round all answers to 2 decimal places. Convert the percentage to a decimal: P: Compute the mean and standard of this size sample of this binomial distribution: Mean: Standard Deviation:
This size sample of this binomial distribution have:
P = 0.24
Mean = 50.4
Standard Deviation = 6.19
About 24% of a population are of a particular ethnic group. 210 people are randomly selected from this population.
First, we need to convert the percentage to a decimal by dividing by 100:
P = 24% / 100 = 0.24
Next, we can compute the mean and standard deviation of the binomial distribution for a sample size of 210 and probability of success of 0.24:
Mean = np = 210 * 0.24 = 50.4
Standard Deviation = √(np(1-p)) = √(50.4 * (1-0.24)) = √(38.304) = 6.19
So, the mean of this binomial distribution is 50.4 and the standard deviation is 6.19.
Therefore,
P = 0.24
Mean = 50.4
Standard Deviation = 6.19
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If your grades 77% and you get 0/20pts on an final, what would your grade be?
Answer:
Assuming that the final exam is worth 20% of the final grade, we can use the following formula to calculate the overall grade:
overall grade = (0.8 * current grade) + (0.2 * final exam grade)
Plugging in the values given in the problem, we get:
overall grade = (0.8 * 77%) + (0.2 * 0%) = 61.6%
Therefore, if you get a score of 0/20 on the final exam, your overall grade would be 61.6%.
Please help I’ll give brainliest!!
Answer:
[tex]\large\boxed{\tt (3x+4)(x+7)=3x^{2}+25x+28}[/tex]
Step-by-step explanation:
[tex]\textsf{We are asked to factor the given trinomial.}[/tex]
[tex]\large\underline{\textsf{What is a Trinomial?}}[/tex]
[tex]\textsf{A Trinomial is an expression that has 3 terms. No more, and no less.}[/tex]
[tex]\large\underline{\textsf{What is Factoring?}}[/tex]
[tex]\textsf{Factoring is a way to split a trinomial into 2 binomials. Binomials have 2 terms.}[/tex]
[tex]\textsf{Factoring helps us to find the possible values of x, setting the binomials equal to 0.}[/tex]
[tex]\textsf{We don't have to do this for our problem though.}[/tex]
[tex]\large\underline{\textsf{Factoring Looks Like;}}[/tex]
[tex]\tt x^{2} + x + 1 = (x+?)(x+?)[/tex]
[tex]\tt The \ 2 x's \ multiply \ to \ equal \ x^{2}.[/tex]
[tex]\textsf{The x's multiply with the whole numbers inside the opposite binomial.}[/tex]
[tex]\large\underline{\textsf{To Factor;}}[/tex]
[tex]\textsf{Factoring is a little tedious, we must be careful and make sure we are finding}[/tex]
[tex]\textsf{the correct factors for factoring to work out. Remember that the trinomial has to}[/tex]
[tex]\textsf{equal the 2 binomials being multiplied.}[/tex]
[tex]\large\underline{\textsf{Solving;}}[/tex]
[tex]\tt 3x^{2} + 25x + 28[/tex]
[tex]\textsf{3x can't be split apart in 2 whole numbers, so it remains 3 in one of the binomials.}[/tex]
[tex]\underline{\textsf{We should have;}}[/tex]
[tex]\tt (3x+?)(x+?)[/tex]
[tex]\textsf{We don't have to worry about} \ \tt 3x^{2} \ \textsf{anymore.}[/tex]
[tex]\textsf{Our goal is to find factors of 28 that multiply to get to 25x and 28.}[/tex]
[tex]\textsf{We might need to try many factor pairs before we have our factored expression.}[/tex]
[tex]\underline{\textsf{Factors of 28;}}[/tex]
[tex]\tt 28: 1, 2, 4, 7, 14, 28.[/tex]
[tex]\textsf{We should substitute the factor pairs in, then FOIL.}[/tex]
[tex]\textsf{Foiling is multiplying 2 binomials together.}[/tex]
[tex]\underline{\textsf{Substitute;}}[/tex]
[tex]\tt (3x+1)(x+28) = 3x^{2}+85x+28[/tex]
[tex]\textsf{Incorrect Factor Pair Whether Flipped or Not.}[/tex]
[tex]\tt (3x+2)(x+14)=3x^{2}+44x+28[/tex]
[tex]\textsf{Incorrect Factor Pair Whether Flipped or Not.}[/tex]
[tex]\large\boxed{\tt (3x+4)(x+7)=3x^{2}+25x+28}[/tex]
[tex]\textsf{Correct Factor Pair. If these factors were flipped it would be incorrect.}[/tex]
What’s the Lateral Surface area and the Total surface area
The lateral surface and the total surface areas of the prism are 96 in² and 2304 in² respectively.
What is surface area?The surface area of a solid object is a measure of the total area that the surface of the object occupies.
Given is prism, we need to find the lateral surface and the total surface areas,
Lateral surface area = (perimeter of base) × length
Perimeter of base = 3 × 4 = 12 in
length = 8 in
The lateral surface area = 12 × 8 = 96 in²
Total surface area = (perimeter of base) × length × 2(base area)
= 96 × 2(3×4)
= 96 × 24
= 2304 in²
Hence, the lateral surface and the total surface areas of the prism are 96 in² and 2304 in² respectively.
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2x^(2) + 7x + 6 = 0. A. two imaginary solutions B. one real solution C. two real solutions
[2x^(2) + 7x + 6 = 0] has C. two real solutions
The quadratic equation 2[tex]x^{(2)}[/tex] + 7x + 6 = 0 has two real solutions. To solve, use the Quadratic Formula:
x = [-b ± √([tex]b^{2}[/tex] - 4ac)]/2a
Where a = 2, b = 7, and c = 6.
So, x = [-7 ± √([tex]7^{2}[/tex]- 4(2)(6))]/2(2)
x = [-7 ± √(49 - 48)]/4
x = [-7 ± 1]/4
x = -3/2 and x = 1/2
Therefore, the equation has two real solutions: x = -3/2 and x = 1/2.
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pls help me solve this
Answer:
because there was an issue the first time you did this for you can reach me by the researchers will ensure you have all available upon the first term or the receiver to the wrong I am not sure what is your educational sectors to be seen in this podcast encourage students and how to answer the questions know what they are doing for the study to be seen before turning in to a Research paper is the one that has been provided by a Goggle of a student who is known for its own thoughts on a great topic that will be implemented in a far way to encourage you and the effective to make my life easier reading a book english and a web page like that is always fighting for a free time and I mean the only thing I want do is make a essay My own and then I can Did it will also cause you to change your life
PLEASE HELP
state whether the following are complementary events
The events in terms of whether they are complimentary or not are:
a. Nob. Noc. Yes D. Yes e. Yesf. Yes g. NoThe probability that it will not rain tomorrow is 2 / 3.
What are complimentary events ?In probability theory, complementary events are two events that together cover all possible outcomes, meaning that if one event occurs, the other cannot occur. For example, in part (a) of the question, the events of getting an even number and getting an odd number when rolling a die are mutually exclusive, meaning that they cannot happen at the same time.
In part (b), the events of getting a prime number and getting an even number when rolling a die are not complementary events because the number 2 is both prime and even.
In parts (c) through (g), the events listed are complementary events. For example, in part (c), the events of all students attending class and no students attending class cover all possible outcomes, and only one of them can happen at a time.
If the probability of rain tomorrow is 1/3, the probability of no rain tomorrow is:
P(not raining) = 1 - P(raining)
P(not raining) = 1 - 1/3
P(not raining) = 2/3
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Can someone please help with this Geometry.. it’s so hard
Answer:
112m
Step-by-step explanation:
The area of the given Parallelogram is 112 m².
given that the parallelogram in fig.. We splits this parallelogram in three parts, that is, first is triangle ,second is square and third is again a triangle.
Since, the area of triangle:
[tex]\mathrm{Area\ of\ triangle}=\frac{1}{2}[/tex] × base × height
and the [tex]\mathrm {Area\ of\ Square}=[/tex] width × height.
Here in triangle, base=6 and height=8
[tex]\mathrm {Area\ of\ Square}=[/tex]
therefor the [tex]\mathrm{Area\ of\ triangle}=\frac{1}{2}[/tex]×6×8
=24m².
Here in square, width=8 and height=8
therefore the [tex]\mathrm {Area\ of\ Square}=[/tex] 8×8
=64m².
Area of first split, that is, triangle is 24 m².
Area of second split, that is, square is 64 m².
Area of third split, that is, again a triangle is 24 m².
Total area= 24+64+24
=112 m².
Therefor the total area of parallelogram is 112 m².
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find x, y
NCERT maths gr9 circles
The values of x and y are 100 and 40, respectively
How to determine the values of x and yFrom the question, we have the following parameters that can be used in our computation:
The circle
On the circle, we have the following congruent angles
ADC and ABC
Using the above as a guide, we have the following:
x = 100
The sum of angles in a triangle is 180
So, we have
y + y + x = 180
This gives
2y + 100 = 180
So, we have
y = 40
Hence, the value of y is 40
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Jane deposits $1,250 quarterly into a retirement account that pays interest at the rate of 3.25% per year compounded continuously. How much will she have in her account at the end of 10 years?
1) $58,802.20
2) $59,081.64
3) $59,866.79
4)$60,358.28
Jane deposits $1,250 quarterly into a retirement account that pays interest at the rate of 3.25% per year compounded continuously. At the end of 10 years, she will have $60,358.28 in her account. The correct answer is option 4
To solve the problem, we can use the formula for continuous compounding given by:[tex]A = Pe^{rt}[/tex], where,A is the amount at the end of the investment period, P is the principal (the initial amount deposited), e is Euler's number, which is approximately equal to 2.71828, r is the annual interest rate (expressed as a decimal), t is the time period in years
In this problem, P = $1,250, r = 0.0325 (3.25% as a decimal), and t = 10 years. We need to find A, the amount at the end of 10 years. Substituting the values in the formula, we get:
[tex]A = 1250e^{0.0325 × 10} ≈ $60,358.28.[/tex]
Therefore correct answer is option 4
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A person walks into a insurance company looking for life insurance. If they die, their family is to receive $130,000. The insurance company calculates that their chance of dying is .0014. Round answers to two decimals if needed. What is the expected payout for the insurance company? $ If the insurance company wants to charge 15% over the expected payout, how much should the insurance company charge the person?
a) The expected payout for the insurance company is $182.
b) If the insurance company wants to charge 15% over the expected payout, the insurance company should charge the insured $27.30.
What is the expected payout?In a game of chance, the expected payout is the expected value of the game minus the cost.
For the insurance company, the expected payout is the probability-weighted value of the insurance undertaking.
The expected payout is the product of the amount to be paid to the insured family and the probability or chance of the insured dying.
The amount the insured family will receive = $130,000
The chance of the insured dying = 0.0014
The expected payout = $182 ($130,000 x 0.0014)
Charge over the expected payout = 15%
The amount the insurance company should charge the person = $27.30 ($182 x 15%)
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help with this please
Answer:30
Step-by-step explanation:
En el año 2013 HUBO 1400 ALmnos que seleciona la asgnatura optativa de religion. En 2014 esta cifra bajo un 4% ¿cuantos alumnos la seleccionaran en 2014
Number of students that selected the elective subject of religion in 2014 is 1344
The problem tells us that in 2013, there were 1400 students who selected the elective subject of religion.
Then, in 2014, this figure decreased by 4%. This means that the new figure in 2014 will be 4 percentage less than the figure in 2013.
To calculate what 4% of 1400 is, we need to multiply 1400 by 4/100, which gives us 56. So, 56 students did not select the elective subject of religion in 2014 compared to 2013.
So, the number of students who selected the elective subject of religion in 2014 is
= 1400 - 56
= 1344
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MTH 438 AO Online Spring 2022 Bordet Quiz: Review Test II (Quiz 2) Question 11 of 40 > This quiz: 40 point(s) possible This question: 1 point(s) possible A hospital experiment involves two different waiting line configurations for patients arriving for admission. The waiting times (in seconds) are recorded with a single line configuration that feeds four stations and another configuration with individual lines at the four stations. Fi two samples, then compare the two sets of results. Specifically, determine whether there is a difference between the two data sets that is not apparent from a comparison of the measures of center. If so, what is it?
Conduct a hypothesis test or calculate and compare the measures of center and spread for each sample.to determine if there is a statistically significant difference between the two waiting line configurations.
1. We can use a two-sample t-test to compare the means of the two samples and determine if the difference is statistically significant. The null hypothesis would be that there is no difference between the means of the two samples, and the alternative hypothesis would be that there is a significant difference between the means.
If the p-value is less than the significance level (e.g., 0.05), we can reject the null hypothesis and conclude that there is a statistically significant difference between the waiting times for the two configurations.
2. The two samples of waiting times from the hospital experiment can be compared by using the measures of center, such as the mean and median, and the measures of spread, such as the standard deviation and range.
Calculate the mean and median of each sample. The mean is the sum of the data values divided by the number of data values, and the median is the middle value when the data values are arranged in ascending order.
In conclusion, to compare the two samples from the hospital experiment, conduct a hypothesis test or calculate and compare the measures of center and spread for each sample.
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Alya loves to read. She reads 90 pages in half an hour. How many pages does she read per minute?
Answer:
3 pages per minuet 90pages/30min=3 pages per min
Step-by-step explanation:
Answer:
3 pages
Step-by-step explanation:
Create a ratio:
30 minutes is equal to 1 hour
90 pages/30 minutes
Divide 90/30
90/30=3
Alya reads 3 pages per minutes
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Write the equation of the line with a y-intercept of (4,0) and an x-intercept of (0,6)
Answer:
y = -3/2x + 6
Step-by-step explanation:
Slope m = (y2 - y1)/(x2 - x1)
m = (6 - 0)/(0 - 4) = 6/-4 = -3/2
Slope-intercept form is y = mx + b
Substitue m = -3/2, y = 0, x = 4
0 = -3/2(4) + b
b = 6
y = -3/2x + 6
how many times greater is 17*10^8 than 4*10^8
Answer:
The answer for 17x10^8 is 1,700,000,000 and the answer for 4x10^8 is 400,000,000
subtract them.
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From the given figure, find BM if ABCD is a parallelogram with AB = 8cm, AD = 10cm
and DL = 5 cm
After solving the length of BM is 4 cm.
As we know from the question;
AB = 8cm
DL ⊥ AB
BM ⊥ AD
DL = 5cm
AD = 10cm
Think about the parallelogram ABCD now.
Here, let AB be the parallelogram's base and DL be its altitude (height).
The parallelogram's area is determined by: Base × Height
Area of ‖gm ABCD = AB × DL
Area of ‖gm ABCD = 8 × 5
Area of ‖gm ABCD = 40cm²
Now,
Think of AD as the parallelogram's base, and BM as its altitude (height).
area of ‖gm ABCD = AD × BM
10 × BM = 40cm²
Divide by 10 on both side,
BM = 40/10
BM = 4cm
length of BM = 4cm.
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The complete question is:
In ‖gm ABCD, it is given that AB = 8cm, DL ⊥ AB and BM ⊥ AD such that DL = 5cm and AD = 10cm. Then, BM = ?
Solve the trigonometric equation where x is in radians.
3Cos2x + Sinx = 1
Please walk through the steps you take and write down any assumptions or calculations you use.
The final answer is x ≈ 0.73 radians or x ≈ -0.52 radians.
To solve the trigonometric equation 3Cos2x + Sinx = 1, we will need to use some trigonometric identities and algebraic manipulation. Here are the steps:
Use the double angle identity for cosine to rewrite the equation:
3(1 - 2Sin^2x) + Sinx = 1
Simplify the equation by distributing and rearranging terms:
6Sin^2x - Sinx - 2 = 0
Use the quadratic formula to solve for Sinx:
Sinx = (-(-1) ± √((-1)^2 - 4(6)(-2))) / (2(6))
Simplify the expression:
Sinx = (1 ± √49) / 12
Solve for the two possible values of Sinx:
Sinx = (1 + 7) / 12 = 8/12 = 2/3
Sinx = (1 - 7) / 12 = -6/12 = -1/2
Use the inverse sine function to find the possible values of x in radians:
x = Sin^-1(2/3) ≈ 0.73 radians or x = Sin^-1(-1/2) ≈ -0.52 radians
Check the solutions by plugging them back into the original equation:
3Cos2(0.73) + Sin(0.73) ≈ 1
3Cos2(-0.52) + Sin(-0.52) ≈ 1
Both solutions are valid, so the final answer is x ≈ 0.73 radians or x ≈ -0.52 radians.
Throughout the calculations, we made the assumption that x is in the domain of the trigonometric functions and that the equation has real solutions. We also used the double angle identity for cosine and the quadratic formula to solve the equation.
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