Answer:
d.32
Step-by-step explanation:
To get the Least Common Multiple (LCM) of 8 and 32 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:
8: 222
32: 22222
LCM: 22222
The Least Common Multiple (LCM) is: 2 x 2 x 2 x 2 x 2 = 32
The least common multiple is = 32
The denominators are 8 and 32.
The multiples of 8 are = 8, 16, 24, 32, 40, ....
The multiples of 32 are = 32, 64, ....
So the least common multiple is = 32
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Mai is making friendship bracelets. Each bracelet is made from 24.3 cm of string. If she has 170.1 cm of string, how many bracelets can she make?
Answer:
7 bracelets
Step-by-step explanation:
to find the answer to the question you need to divide the total amount of string by the amount of string needed for each bracelet.
170.1/24.3=7
There's a 90° triangle. The other two angles are 30° and 60°. The shortest line is nine the longest line is C. It's asking what sea is in simplest radical form
Answer:
C = 18
Step-by-step explanation:
There's a 90° triangle. The other two angles are 30° and 60°. The shortest line is nine the longest line is C. It's asking what is C is in simplest radical form
Solution:
A triangle is a shape with three sides and three angles. Types of triangle are right angled, isosceles, scalene, obtuse, acute.
The length of the side in a triangle is directly proportional to the opposite angle (angle facing the side).
A right angled triangle is a triangle with one angle equals to 90 degrees.
Since the shortest line is 9, the angle facing the shortest line is the smallest angle. The longest line is the hypotenuse which is given as C. Trigonometric identities shows the relationship between the sides of a triangle and its angles, hence:
sin30 = 9 / C
0.5 = 9 / C
C = 9/0.5
C = 18
a histogram of sample means converges to a normal distribution as the sample size increases.. T/F
Yes, this is true. This phenomenon is known as the Central Limit Theorem and it states that, as the sample size increases, the distribution of the sample mean converges to a normal distribution.
Yes, this is true. According to the Central Limit Theorem, as the sample size increases, the distribution of the sample mean converges to a normal distribution. This means that, when the sample size is large enough, the histogram of sample means will appear to be close to a normal distribution. This is because the mean of a large enough sample size will be close to the population mean, regardless of the shape of the original population distribution.
The Central Limit Theorem also states that the larger the sample size, the more closely the sample distribution will resemble a normal distribution. This is why, when the sample size is large enough, a histogram of sample means will appear to be a normal distribution.
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Use a double integral to find the area of the region.
The region inside the circle
(x − 4)² + y² = 16
and outside the circle
x² + y² = 16
To find the area of the region inside the circle (x - 4)² + y² = 16 and outside the circle x² + y² = 16, we can use a double integral. The area can be obtained by calculating the integral over the region defined by the two circles.
First, let's visualize the two circles. The circle (x - 4)² + y² = 16 has its center at (4, 0) and a radius of 4. The circle x² + y² = 16 has its center at the origin (0, 0) and also has a radius of 4.
To find the area between these two circles, we can set up a double integral over the region. Since the two circles are symmetric about the x-axis, we can integrate over the positive y-values and multiply the result by 2 to account for the entire region.
The integral can be set up as follows:
Area = 2 ∫[a, b] ∫[h(y), g(y)] dxdy
Here, [a, b] represents the interval of y-values where the circles intersect, and h(y) and g(y) represent the corresponding x-values for each y.
Solving the equations for the two circles, we find that the intervals for y are [-4, 0] and [0, 4]. For each interval, the corresponding x-values are given by x = -√(16 - y²) and x = √(16 - y²), respectively.
Now, we can evaluate the double integral:
Area = 2 ∫[-4, 0] ∫[-√(16 - y²), √(16 - y²)] dxdy
By integrating and simplifying the expression, we can find the area between the two circles.
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(5, -12); m
2
5
How do I write an equation in point-slope form of the line that passes thru the given point & has the given slope.
You must decide whether to buy new machinery to produce product X or to modify existing machinery. You believe the probability of a prosperous economy next year is 0.7. Prepare a decision tree and use it to calculate the expected value of the buy new option. The payoff table is provided below (+ for profits and - for losses).
When entering the answer, do not use the $ symbol. Do not enter the thousand separator. Enter up to 2 decimal places after the decimal point. For example, $6,525.35 must be entered as 6525.35
N1: Prosperity ($) N2: Recession ($)
A1 (Buy New) $1,035,332 $-150,000
A2(Modify) $823,625 $293,648
The expected value of the "Buy New" option is 724732.60.
Decision Tree:
To solve the given problem, the first step is to create a decision tree. The decision tree for the given problem is shown below:
Expected Value Calculation: The expected value of the "Buy New" option can be calculated using the following formula:
Expected Value = (Prob. of Prosperity * Payoff for Prosperity) + (Prob. of Recession * Payoff for Recession)
Substituting the given values in the above formula, we get:
Expected Value for "Buy New" = (0.7 * 1,035,332) + (0.3 * -150,000)Expected Value for "Buy New" = 724,732.60
Therefore, the expected value of the "Buy New" option is 724,732.60.
Conclusion:
To conclude, the decision tree is an effective tool used in decision making, especially when the consequences of different decisions are unclear. It helps individuals understand the costs and benefits of different choices and decide the best possible action based on their preferences and probabilities.
The expected value of the "Buy New" option is 724,732.60.
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show that if λ is an eigenvalue of a and x is an eigenvector belonging to λ. show that for m ≥ 1, λ m is an eigenvalue of am and x is an eigenvector of am belonging to λ m.
If λ is an eigenvalue of matrix A and x is the corresponding eigenvector, then for any positive integer m, λ^m is an eigenvalue of A^m, and x is the corresponding eigenvector of A^m.
Let λ be an eigenvalue of matrix A with eigenvector x. This means that Ax = λx. Now, consider the matrix A^m, where m is a positive integer. By multiplying both sides of the eigenvector equation by A^(m-1), we have A^(m-1)Ax = A^(m-1)(λx), which simplifies to A^mx = λA^(m-1)x.
Since A^mx = (A^m)x and A^(m-1)x = λ^(m-1)x, we can rewrite the equation as (A^m)x = λ^(m-1)(Ax). Using the initial eigenvector equation Ax = λx, we have (A^m)x = λ^(m-1)(λx), which further simplifies to (A^m)x = λ^m x.
Therefore, we have shown that if λ is an eigenvalue of A with eigenvector x, then for any positive integer m, λ^m is an eigenvalue of A^m with the same eigenvector x. This result demonstrates the relationship between eigenvalues and matrix powers, illustrating that raising the matrix to a power corresponds to raising the eigenvalue to the same power while keeping the eigenvector unchanged.
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What is the x-intercept of the line whose equation is x/3 + y/2 = 1
Answer:
y- intercept = 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
\(\frac{x}{3}\) + \(\frac{y}{2}\) = 1
Multiply through by 6 to clear the fractions
2x + 3y = 6 ( subtract 2x from both sides )
3y = - 2x + 6 ( divide all terms by 3 )
y = - \(\frac{2}{3}\) x + 2 ← in slope- intercept form
with y- intercept c = 2
Inverses, contrapositives and converses. Below are examples of mathematical statements you’ll encounter in this class. Assume x, y, a, b, c are integers.
If the difference x − y is even then x and y are also even.
If a divides b or a divides c then a divides bc. (Note: a divides b means that the fraction b/a is an integer. For example, 3 divides 6 but 3 does not divide 7.)
If x2 ≥ 100 and x ≥ 0, then x ≥ 10.
(i) (9 pts.) State the inverse, contrapositive and converse of each statement above. When possible, avoid using the word "not." Instead, replace "not even" with "odd", etc.
Recall that for P → Q,
contrapositive: ¬Q →¬P
converse: Q → P
inverse: ¬(P → Q) = ¬(¬P ∨ Q) = P ∧ ¬Q
(ii) (3 pts.) Then indicate their truth values. Thus, for each statement you must determine whether the statement itself, its inverse, contrapositive and converse are true or false. That’s four true/false answers for each statement.
1. Statement: True
Inverse: True
Contrapositive: True
Converse: True
2. Statement: True
Inverse: True
Contrapositive: True
Converse: True
3. Statement: True
Inverse: True
Contrapositive: True
Converse: True
(i)
Statement: If the difference x - y is even, then x and y are also even.
Inverse: If x and y are not even, then the difference x - y is not even.
Contrapositive: If x and y are not even, then the difference x - y is not even.
Converse: If x and y are even, then the difference x - y is even.
Statement: If a divides b or a divides c, then a divides bc.
Inverse: If a does not divide b and a does not divide c, then a does not divide bc.
Contrapositive: If a does not divide b and a does not divide c, then a does not divide bc.
Converse: If a divides bc, then a divides b or a divides c.
Statement: If x^2 ≥ 100 and x ≥ 0, then x ≥ 10.
Inverse: If x^2 < 100 or x < 0, then x < 10.
Contrapositive: If x^2 < 100 or x < 0, then x < 10.
Converse: If x ≥ 10, then x^2 ≥ 100.
(ii)
For each statement, we need to evaluate the truth values of the statement, inverse, contrapositive, and converse.
Statement: True
Inverse: True
Contrapositive: True
Converse: True
Statement: True
Inverse: True
Contrapositive: True
Converse: True
Statement: True
Inverse: True
Contrapositive: True
Converse: True
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Order these from least to greatest, Thank you so much
Answer:
2root5, 2root3, 3, root8.5, 2root6/root3
Step-by-step explanation:
2Root5 = 4.47
Root8.5 = 2.92
3
2root3 = 3.46
2root6/root3 = 2.83
Martin made 16 of of his 20 free throws attempted. What percent of free throws did Martin make?
Answer:
80 percent
Step-by-step explanation:
20 / 100 = 0.20
16 / 0.20 = 80
16 is 80 percent of 20
Answer:
80% or .8
Step-by-step explanation:
16/20 is equal to .8 or 80%
.Sketch the graph of f by hand and use your sketch to find the absolute and local maximum and minimum values of f. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = sin(x), 0
The absolute maximum and minimum values of f are 1 and -1, respectively.
The given function is f(x) = sin(x)
, where 0 <= x <= 2π.Sketch the graph of f by hand:graph of f(x) = sin(x)
(where 0 <= x <= 2π)
Use the graph of f to find the absolute and local maximum and minimum values of f.
The absolute maximum value of f is 1, which occurs at x = π/2.
The absolute minimum value of f is -1, which occurs at x = 3π/2.
The local maximum values of f are 1, which occur at x = π/2 + 2πk
(k = 0, ±1, ±2, ...), and the local minimum values of f are -1, which occur at
x = 3π/2 + 2πk
(k = 0, ±1, ±2, ...).
Thus, the absolute maximum value of f is 1, and it occurs at x = π/2, and the absolute minimum value of f is -1, and it occurs at x = 3π/2.
The local maximum values of f are 1, which occur at x = π/2 + 2πk
(k = 0, ±1, ±2, ...), and the local minimum values of f are -1, which occur a
t x = 3π/2 + 2πk (k = 0, ±1, ±2, ...).
Hence, the absolute maximum and minimum values of f are 1 and -1, respectively.
The local maximum values of f are 1, which occur at x = π/2 + 2πk (k = 0, ±1, ±2, ...), and the local minimum values of f are -1,
which occur at x = 3π/2 + 2πk (k = 0, ±1, ±2, ...).
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Are the lines C and D parallel? (The figure may not be drawn to scale). Giving brainliest for whoever answers correctly
1. Yes
2.no
3. Can’t be determined
Yes the given C and D lines are parallel
How to know two lines are parallel lines?
Any two parallel lines that are crossed by a transversal can be recognized by the following characteristics.
If the corresponding angles created by any two lines are equal, then the lines are said to be parallel.If the alternate internal angles created are equal, any two lines are considered to be parallel.If the alternate outside angles created are equal, any two lines are considered to be parallel.If the consecutive interior angles on the same side of the transversal are supplementary, any two lines are said to be parallel.The fundamental characteristics listed below make it simple to recognize parallel lines.
Straight lines that are always the same distance away from one another are called parallel lines.No matter how far apart they are from one another, parallel lines can never intersect.as the sum of the given angle c and d i.e. 48+132 is 180 it clearly shows that it is the Pairs of interior angles on the same side of the transversal which proves that the given lines C and D are parallel
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Trace through the decimal addition algorithm of Figure 1.2 using the following input values:
m = 3 a2 = 1 a1 = 4 a0 = 9
b2 = 0 b1 = 2 b0 = 9
At each step, show the values for c3, c2, c1, c0, and carry.
The output values can be represented as: C3C2C1C0= 3 1 7 8
The input values in decimal addition algorithm can be shown in a table form as shown below:
M3A2A1A0+ B2B1B0_ _ _ _
We can now start by adding the ones place digits to find c0 = a0 + b0 = 9 + 9 = 18.
This gives a carry over of 1 to the next column.
To add the tens place digits, we add the two digits a1 and b1, and the carry-over of 1 from the previous column. Thus, c1 = a1 + b1 + 1 = 4 + 2 + 1 = 7.
Next, we add the hundreds place digits, we get c2 = a2 + b2 + 0 = 1 + 0 + 0 = 1. Since there is no carry-over, we leave the carry space blank.
Finally, we add the thousands place digits, we get c3 = m = 3.
Since there is no carry-over from this column, we leave the carry space blank.
Therefore, the output values can be represented as:
C3C2C1C0= 3 1 7 8
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Original price $3:29;markdown 35%
What the value please help me
Answer:
2.94
Step-by-step explanation:
3.29 - 35/100 = 2.94
Find the component form of the vector that translates A(-4,8) to A'(7,-9)
The component form of the vector that translates A to A' is (11, -17)
A translation is a type of transformation that takes each point in a figure and slides it the same distance in the same direction.
In translation, the shape of the figure does not change but its size may change.
Other transformation processes are reflection and rotation.
The component form of the vector is governed by the rule; A' - A
so we subtract corresponding x- coordinates and corresponding y- coordinates
A' - A = (7, -9) - (-4, 8)
= ( 7 - - 4, -9 - 8)
-= ( 11, -17)
In conclusion, the vector that translates A to A' is ( 11, -17 )
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Katy invests £200000 in a savingsaccount for 4 years. The account pays compund interest at a rate of 1.5% per annum calculate the total amount of interest katy will get at the end of 4 years
Answer:
£12000
Step-by-step explanation:
1 year = 1.5%
4 years = 6%
6% = 0.06
200000 times 0.06 = £12000
So, Katy will get £12000 interest rate at the end of 4 years.
If you can, please give me a Brainliest; thank you, and have a good day!
Answer:
£3,137
Step-by-step explanation:
First year: £200000 x 1.5% = £3,000
Second year: £203,000 x 1.5% = £3,045
Third year: £206,045 (because of 203,000+3,045) x 1.5% = £3,090.675
Last year: £209,135.675 x 1.5% = approximately £3,137
iona plans to invest $500 later today. she wants to know to what amount her investment will grow in 20 years if she earns 12 percent interest compounded (a) annually, (b) quarterly, and (c) monthly.
(a) Annually compounded interest:
In this case, n = 1 (compounded once a year)
Future Value (a) = $500 × (1 + 0.12 / 1)^(1 * 20)
(b) Quarterly compounded interest:
In this case, n = 4 (compounded four times a year)
Future Value (b) = $500 × (1 + 0.12 / 4)^(4 * 20)
(c) Monthly compounded interest:
In this case, n = 12 (compounded twelve times a year)
Future Value (c) = $500 × (1 + 0.12 / 12)^(12 * 20)
Let's calculate the values:
(a) Future Value (annually) = $500 × (1 + 0.12)^20
Future Value (annually) ≈ $500 × 6.1917364224
Future Value (annually) ≈ $3,095.87
(b) Future Value (quarterly) = $500 × (1 + 0.12 / 4)^(4 * 20)
Future Value (quarterly) ≈ $500 × 1.03^80
Future Value (quarterly) ≈ $500 × 10.0626534032
Future Value (quarterly) ≈ $5,031.33
(c) Future Value (monthly) = $500 × (1 + 0.12 / 12)^(12 * 20)
Future Value (monthly) ≈ $500 × 1.01^240
Future Value (monthly) ≈ $500 × 20.1814079986
Future Value (monthly) ≈ $10,090.70
Therefore, if Iona earns 12% interest compounded annually, her investment of $500 will grow to approximately $3,095.87 in 20 years. If compounded quarterly, it will grow to approximately $5,031.33, and if compounded monthly, it will grow to approximately $10,090.70.
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Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each angle measure in degrees with its equivalent measure in radians.
Answer:
315° = 7π/4 rad80° = 4π/9 rad225° = 5π/4 rad324° = 9π/5 radStep-by-step explanation:
Find the attachment in the diagram below,
In order to get the right match, we will use the conversion
180° = πrad
- For angle 315°;
If 180° = πrad
315° = a
Cross multiplying
180a = 315π rad
a = 315π rad/180
a = 63π/36 rad
a = 7π/4 rad
Hence 315° = 7π/4 rad
- For angle 80°;
If 180° = πrad
80° = b
Cross multiplying
180b = 80π rad
b = 80π rad/180
b = 8π/18 rad
b = 4π/9 rad
Hence, 80° = 4π/9 rad
- For angle 225°;
If 180° = πrad
225° = c
Cross multiplying
180c = 225π rad
c = 225π rad/180
c = 15π/12 rad
c = 5π/4 rad
Hence, 225° = 5π/4 rad
- For angle 324°;
If 180° = πrad
324° = d
Cross multiplying
180d = 8324π rad
d = 324π rad/180
d = 27π/15 rad
d = 9π/5 rad
Hence, 324° = 9π/5 rad
Can anyone help me find the value of x.
I need the method too..
Please.
Hello NiX010101!
\( \huge \boxed{\mathfrak{Question} \downarrow}\)
Solve : \(\frac{ 3x-2 }{ 4 } - \frac{ 2x+3 }{ 3 } = \frac{ 2 }{ 3 } -x\\\)
\( \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}\)
\(\frac{ 3x-2 }{ 4 } - \frac{ 2x+3 }{ 3 } = \frac{ 2 }{ 3 } -x \\ \)
Multiply both the sides by the LCM of 4, 3 which is 12. After some simplification you'll get it as ..
\(3\left(3x-2\right)-4\left(2x+3\right)=8-12x \)
Now, use the distributive property to open the brackets.
\(3\left(3x-2\right)-4\left(2x+3\right)=8-12x \\ 9x - 6 - 8x - 12 = 8 - 12x\)
Now, bring the like terms together & simplify it.
\(9x - 6 - 8x - 12 = 8 - 12x \\ 9x - 8x - 6 - 12 = 8 - 12x \\ x - 18 = 8 - 12x \\ x + 12x = 8 + 18 \\ 13x = 26 \\ x = \frac{26}{13} \\ \large \boxed{\boxed{ \bf x = 2}}\)
We got the value of x as 2.
__________________
Hope it'll help you!
ℓu¢αzz ッ
Find the limit. Use l'Hospital's Rule where appropriate. If there is a more elementary method, consider using it. lim [In(x9 - 1) - In(x5- 1)]
The limit of the given expression as x approaches 1 from the right is 1.8.
To evaluate the limit of the given expression:
\(lim_{x - > 1} + [ln(x ^ 9 - 1) - ln(x ^ 5 - 1)]\)
We can start by directly substituting x = 1 into the expression:
[ln(1⁹ - 1) - ln(1⁵ - 1)]
= [ln(0) - ln(0)]
However, ln(0) is undefined, so this approach doesn't provide a meaningful answer.
To apply L'Hôpital's Rule, we need to rewrite the expression as a fraction and differentiate the numerator and denominator separately. Let's proceed with this approach:
\(lim_{x - > 1}\)+ [ln(x⁹ - 1) - ln(x⁵ - 1)]
= \(lim_{x - > 1}\)+ [ln((x⁹ - 1)/(x⁵ - 1))]
Now, we can differentiate the numerator and denominator with respect to x:
Numerator:
d/dx[(x⁹ - 1)] = 9x⁸
Denominator:
d/dx[(x⁵ - 1)] = 5x⁴
Taking the limit again:
\(lim_{x - > 1}\)+ [9x⁸ / 5x⁴]
= \(lim_{x - > 1}\)+ (9/5) * (x⁸ / x⁴)
= (9/5) * \(lim_{x - > 1}\)+ (x⁸ / x⁴)
Now, we can substitute x = 1 into the expression:
(9/5) * \(lim_{x - > 1}\)+ (1⁸ / 1⁴)
= (9/5) * \(lim_{x - > 1}\)+ 1
= (9/5) * 1
= 9/5
= 1.8
The complete question is:
Find the limit. Use l'Hospital's Rule where appropriate. If there is a more elementary method, consider using it. \(lim_{x - > 1} + [ln(x ^ 9 - 1) - ln(x ^ 5 - 1)]\)
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an automated egg carton loader has a 1% probability of cracking an egg, and a customer will complain if more than one egg per dozen is cracked. assume that each egg load is an independent event and is distributed according to a binomial distribution. what is the probability that a carton of a dozen eggs results in a complaint? group of answer choices
The probability that a carton of a dozen eggs results in a complaint is 0.00617.
Given that there is a 1% probability of cracking a egg
Here n=12 and p=0.01
Let X be the no.of cracked eggs per dozen
So, the distribution of cracked eggs per dozen is binomial distribution with parameters n=12 and p=0.01.
The probability that a carton of a dozen eggs results in complaint will be
⇒P [ X > 1 ] = 1 - P [ X = 0 ] - P [ X = 1 ]
⇒ 1 - 0.99¹² - 12 × 0.01 × 0.99¹¹
⇒6.17 × 10³ = 0.00617
Hence , the probability that a carton of a dozen eggs results in complaint will be 0.00617.
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The function f(x) is graphed below . What is true about the graph on the interval from point b to point c ?
Answer:
negative and increasing
Step-by-step explanation:
The graph in the interval b to c is below the x- axis and is therefore negative,
from b to c the slope of the curve is positive so it is increasing
Consider a sample with six observations of 16, 11, 13, 22, 15, and 19. Compute the z-score for each observation. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places. Negative values should be indicated by a minus sign.) Sample observations z-score 16 11 13 22 15 19
To compute the z-score for each observation, we need to standardize the data using the formula z = (x - μ) / σ, where x is the individual observation, μ is the mean of the sample, and σ is the standard deviation of the sample.
Given the sample observations: 16, 11, 13, 22, 15, and 19, we can calculate the z-score for each observation as follows:
Calculate the mean (μ) of the sample:
μ = (16 + 11 + 13 + 22 + 15 + 19) / 6 = 16
Calculate the standard deviation (σ) of the sample:
Step 1: Calculate the squared deviations from the mean for each observation:
(16 - 16)², (11 - 16)², (13 - 16)², (22 - 16)², (15 - 16)², (19 - 16)²
0, 25, 9, 36, 1, 9
Step 2: Calculate the variance:
Variance = (0 + 25 + 9 + 36 + 1 + 9) / 6 = 80 / 6 ≈ 13.33
Step 3: Calculate the standard deviation:
σ = √(Variance) = √13.33 ≈ 3.65
Calculate the z-score for each observation:
z = (x - μ) / σ
For 16: z = (16 - 16) / 3.65 = 0 / 3.65 = 0
For 11: z = (11 - 16) / 3.65 = -5 / 3.65 ≈ -1.37
For 13: z = (13 - 16) / 3.65 = -3 / 3.65 ≈ -0.82
For 22: z = (22 - 16) / 3.65 = 6 / 3.65 ≈ 1.64
For 15: z = (15 - 16) / 3.65 = -1 / 3.65 ≈ -0.27
For 19: z = (19 - 16) / 3.65 = 3 / 3.65 ≈ 0.82
The z-scores for the given sample observations are: 0, -1.37, -0.82, 1.64, -0.27, and 0.82.
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Find both possible pairs of numbers if two numbers have a product of 14 and a difference of 5
Answer:
tt
Step-by-step explanation:
ttt
Answer:
2×7
Step-by-step explanation:
2×7=14 and their difference is 5
true/false. a box is held in position by a cable along a frictionless incline .
True, a box can be held in position by a cable along a frictionless incline.
When the tension force in the cable is equal to the component of the gravitational force rate acting parallel to the incline, the box will remain in a stationary position.
force which prevents one solid item from rolling or slipping over another. Although frictional forces can be advantageous, such as the traction required to walk without slipping, they can provide a significant amount of resistance to motion.
What are the 4 different forms of friction?
It opposes the sliding motion of both layers of fluid and solid matter. Friction comes in four flavors: flowing, rolling, sliding, and static.
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12. If a circle has a diameter of 221.25 m, what is its radius?
Integrate the function y = f(x) between x = 2.0 to x = 2.8, using the Trapezoidal rule with 8 strips. Assume a = 1.2, b = -0.587 y = a (1- e-bx)
Using the Trapezoidal rule and 8 strips, the integral of y = f(x) = a(1 - e(-bx)) from 2.0 to 2.8 is approximately equal to 1.926.
To integrate the function \(\[y = f(x) = a(1 - e^{-bx})\]\) using the Trapezoidal rule, we need to divide the interval [2.0, 2.8] into a number of strips (in this case, 8 strips) and approximate the integral using the trapezoidal formula.
The trapezoidal rule formula for approximating the integral is as follows:
\([\int_a^b f(x) , dx \approx \frac{h}{2} \left[ f(x_0) + 2f(x_1) + 2f(x_2) + \dots + 2f(x_{n-1}) + f(x_n) \right]]\)
where:
- h is the width of each strip \(\[h = \frac{b - a}{n}\]\), where n is the number of strips)
- x0 is the lower limit (2.0)
- xn is the upper limit (2.8)
- f(xi) represents the function evaluated at each strip's endpoint
Given the values a = 1.2 and b = -0.587, we can proceed with the calculations.
Step 1: Calculate the width of each strip (h):
\(\[h = \frac{b - a}{n} = \frac{-0.587 - 1.2}{8} = \frac{-1.787}{8} \approx -0.2234\]\)
Step 2: Calculate the function values at each strip's endpoint:
x₀ = 2.0
x₁ = x₀ + h = 2.0 + (-0.2234) = 1.7766
x₂ = x₁ + h = 1.7766 + (-0.2234) = 1.5532
x₃ = x₂ + h = 1.5532 + (-0.2234) = 1.3298
x₄ = x₃ + h = 1.3298 + (-0.2234) = 1.1064
x₅ = x₄ + h = 1.1064 + (-0.2234) = 0.883
x₆ = x₅ + h = 0.883 + (-0.2234) = 0.6596
x₇ = x₆ + h = 0.6596 + (-0.2234) = 0.4362
x₈ = x₇ + h = 0.4362 + (-0.2234) = 0.2128
xₙ = 2.8
Step 3: Evaluate the function at each strip's endpoint:
\([f(x_0) = 1.2 \left( 1 - e^{-(-0.587) \times 2.0} \right) = 1.2 \left( 1 - e^{1.174} \right) \approx \boxed{-2.082}][f(x_1) = 1.2 \left( 1 - e^{-(-0.587) \times 1.7766} \right) \approx -1.782][f(x_2) = 1.2 \left( 1 - e^{-(-0.587) \times 1.5532} \right) \approx -1.478][f(x_3) = 1.2 \left( 1 - e^{-(-0.587) \times 1.3298} \right) \approx -1.179][f(x_4) = 1.2 \left( 1 - e^{-(-0.587) \times 1.1064} \right) \approx -0.884]\)
\([f(x_5) = 1.2 \left( 1 - e^{-(-0.587) \times 0.883} \right) \approx -0.592]\)
0.592
\(\[f(x_6) = 1.2 \left( 1 - e^{-(-0.587) \times 0.6596} \right) \approx -0.303\]\[f(x_7) = 1.2 \left( 1 - e^{-(-0.587) \times 0.4362} \right) \approx -0.018\]\[f(x_8) = 1.2 \left( 1 - e^{-(-0.587) \times 0.2128} \right) \approx 0.267\]\[f(x_n) = 1.2 \left( 1 - e^{-(-0.587) \times 2.8} \right) \approx 0.647\]\)
Step 4: Apply the trapezoidal rule formula:
\([\int_{2.0}^{2.8} f(x) dx \approx \frac{h}{2} \left[ f(x_0) + 2f(x_1) + 2f(x_2) + \cdots + 2f(x_{n-1}) + f(x_n) \right]]\)
Simplifying the expression inside the brackets:
\([\frac{-0.2234}{2} \left[ -2.082 - 3.564 - 2.956 - 2.358 - 1.768 - 1.184 - 0.606 - 0.036 + 0.267 + 0.647 \right] = 1.6216606]\)
Calculating the values inside the brackets:
\(\[\frac{-0.2234}{2} \left[ -13.754 \right] = -3.4389\]\)
≈ 1.926
Therefore, the approximate value of the integral ∫[2.0, 2.8] f(x) dx using the Trapezoidal rule with 8 strips is approximately 1.926.
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what is f(x)=4*(1/2)^x
Answer:
f(x)=4/2x
i dont have no explanation
Shannon read that the latest model of a car made in Europe travels to speeds up to 120 kilometers per hour. Approximately how many per miles is 120 kilometers per hour? Show your work.
74.5645 miles is 120 kilometers per hour.
Both kilometers and miles represent units used to measure distance, and their magnitudes are comparable. The only distinction left is in the length units because both speed units have a time dimension that is measured in hours. A kilometer is a unit first from the metric system, whereas the mile is a part of something like the imperial unit system, which is used in many nations like the United States as well as the United Kingdom.Although it is a more recent measurement, the mile does have a lengthy history, going at least as far back as the Romans.The Roman mile was approximately 5,000 feet long, as well as additional miles with differing lengths in various locales and eras, such as the English, Irish, and Italian miles.Divide the speed of the vehicle by 1.609 to get an approximation.
Therefore, 120 kilometers per hour = 120/1.609
=74.5645 miles per hour
74.5645 miles is 120 kilometers per hour.
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