The number of ways randomly an integer which is a composite number generated by a computer between 10 and 20 is equal to option c. 6.
As given in the question,
Total number of integer between 10 and 20 where 20 is inclusive = 10
Composite numbers between 10 and 20 where 20 is inclusive are :
12, 14, 15, 16, 18 ,20
Total number of ways an integer which is a composite number generated between 10 and 20( inclusive )
= 6
Therefore, the number of ways randomly an integer which represents a composite number generated by a computer between 10 and 20 ( inclusive ) is equal to option C. 6.
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let $n$ be the number of ordered triples $(a,b,c)$ of integers satisfying the conditions (a) $0\le a
The total number of ordered triples $(a,b,c)$ satisfying the conditions [tex]$0\le a \le b \le c \le 10$[/tex] is 10275.
The total number of ordered triples $(a,b,c)$ satisfying the conditions [tex]$0\le a \le b \le c \le 10$[/tex] is given by
[tex]$n= \sum_{a=0}^{10}\sum_{b=a}^{10}\sum_{c=b}^{10} 1$$= \sum_{a=0}^{10}\sum_{b=a}^{10} (c-b+1)$$= \sum_{a=0}^{10}\sum_{b=a}^{10} c - \sum_{a=0}^{10}\sum_{b=a}^{10} b + \sum_{a=0}^{10}\sum_{b=a}^{10} 1$$= \sum_{a=0}^{10}\sum_{b=a}^{10} 10 - \frac{10(11-a)(a+1)}{2} + \sum_{a=0}^{10} (b-a+1)$$= \sum_{a=0}^{10} 105 - \frac{10(11-a)(a+1)}{2} + \frac{10(a+1)}{2}$$= \sum_{a=0}^{10} \frac{185 + 10a^2}{2}$$= \frac{(185 + 10\times 100) \times 10}{2}$ $= \frac{2055 \times 10}{2}$ $= 10275$[/tex]
Therefore, the total number of ordered triples $(a,b,c)$ satisfying the conditions [tex]$0\le a \le b \le c \le 10$[/tex] is 10275.
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Triangle LMN is similar to triangle OPQ. Find the measure of side OP. Round your
answer to the nearest tenth if necessary.
Triangle LMN is similar to triangle OPQ. The measure of side OP is 12.6
How to find the measure of side OP?Triangle LMN is similar to triangle OPQ.
Similar forms or figures have corresponding sides that are proportionate to one another. The ratio of their matching sides would be identical because LMN OPQ. Thus:
MN/PO = LN/OQ
LN = 31
OQ = 8
MN = 49
RO = ?
Put the values in.
31 / 8 = 49 / PO
multiply by cross
31 * PO = 49 * 8
31 * PO = 392
PO = 392 / 31
PO = 12.6
Triangle LMN is similar to triangle OPQ. The measure of side OP is 12.6
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HELPPP NOWWW PLEASE WITH THIS EQUATION
The angle CFD is 67.6 degrees.
What is Angle?An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.
Given that ∠CFE=177 degrees.
We have to find angle CFD.
∠CFD+∠EFD=117
4z+74+9z+64=117
13z+138=117
13z=21
z=-1.6
Now substitute in ∠CFD =4(-1.6)+74
∠CFD =-6.4+74
=67.6 degrees
Hence, the angle CFD is 67.6 degrees.
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You are reviewing secondary data to help with a project concerning consumer preferences for television programs based on viewer income. Which of the following statements would NOT be of concern when considering the nature criteria for evaluating secondary data?
Select one:
a. Secondary data may be measured in units that may not be appropriate for the current problem.
b. The researcher must determine if the data are accurate enough for the purpose of the present study.
c. It is possible to reconfigure the available data so that the resulting data are more useful to the problem at hand.
d. The relationships examined should be taken into account.
The statement that would NOT be of concern when considering the nature criteria for evaluating secondary data is the relationships examined should be taken into account. Thus, option D is the answer
While it is important to take relationships into account when analyzing data, this statement is not specific to evaluating secondary data, but rather a general principle of data analysis.
The other statements listed are all relevant concerns when evaluating secondary data, as secondary data may not always be directly relevant or appropriate for the current problem, and it is important to assess the accuracy and usefulness of the data for the present study.
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Solve the compound inequality.
- 4x + 2
3
-3≤
≤4
Answer:
The inequality can be solved by isolating the variable x on one side of the inequality. To do this, we can first add 4x to both sides of the inequality:
-2 ≤ 4x + 3 ≤ 4
Next, we can subtract 3 from both sides of the inequality:
-5 ≤ 4x ≤ 1
Finally, we can divide both sides of the inequality by 4 to solve for x:
x ≥ -5/4 and x ≤ 1/4
So the solution of the compound inequality is x ≥ -5/4 and x ≤ 1/4
We can also express this solution in interval notation: [-5/4, 1/4]
Note that the compound inequality has two separate inequality signs, indicating that the solution is the set of all x-values that make both inequalities true.
Step-by-step explanation:
solve for x in the right triangle. 915 a right triangle is given. the first side has length 9. the second side has length x. the third side of length 15 is opposite the right angle. g
The length of the second side, x, is 12.
What is Pythagoras' theorem?
In a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides (the legs of the triangle). This theorem is usually represented by the equation: a^2 + b^2 = c^2, where c is the length of the hypotenuse, and a and b are the lengths of the legs.
In this case, the first side has a length of 9, the second side has a length of x, and the third side has a length of 15, which is the hypotenuse. We can use the Pythagorean theorem to solve for x:
x^2 + 9^2 = 15^2
x^2 = 15^2 - 9^2
x^2 = 225 - 81
x^2 = 144
x =√144
x = 12
Hence, the length of the second side, x, is 12.
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Popcorn at a concession stand comes in two different-sized containers. The dimensions of the small container with a diameter of 4 in. are shown below.
A popcorn container shaped like a cylinder is shown. A dashed line across the top of the container is labeled four inches. The height of the container is labeled four and five tenths inches.
The large container of popcorn has the same height as the small container, but its diameter is 1.5 times greater. How do the volumes of the two containers of popcorn compare? Use 3.14 for π.
Select the answers from the drop-down lists to correctly complete each sentence.
The volume of the large container of popcorn is _______ in.^3
OPTIONS FOR BLANK : A) 56.52 B) 84.78 C)127.17 D) 169.56
This is ______ times the volume of the small container.
OPTIONS FOR THIS BLANK : A) 2.88 B) 2.25 C) 1.8 D) 1.5
The volume of the large container is given as follows:
113.04 in³.
The ratio of the volumes is of:
B) 2.25
How to obtain the volume of a cylinder?The volume of a cylinder of radius r and height h is given by the equation presented as follows:
V = πr²h.
The diameter of the smaller cylinder is of:
4 inches.
Hence the diameter and radius of the larger container is of:
Diameter: 4 x 1.5 = 6 inches.Radius: 0.5 x 6 = 3 inches.As the height of the cylinder is of 4 inches, the volume is given as follows:
V = 3.14 x 3² x 4
V = 113.04 in³.
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The probability that amaka and David will pass statistic exams are 2/3 and 4/7 find the probability that one of them will pass the exam ?
Answer:
Amaka passes hers 2/3
Step-by-step explanation:
she just will
A local medical center has advertised that the mean wait for services will be less than 15 minutes. Given this claim, the hypothesis test for the population mean should be a one-tailed test with the rejection region in the lower (left-hand) tail of the sampling distribution. TRUE or FALSE and WHY?
It is true that the hypothesis test for the population mean must be a one-tailed test having the rejection region in the lower tail, which is on the left hand of the sampling distribution.
A one-tailed test is basically a hypothesis test which help us to test whether the given sample mean would be higher or will be lower than the population mean. The rejection region is basically the area for which the null hypothesis is rejected.
When we perform a left tailed test for our hypothesis, that is the lower tail hypothesis, then the rejection region will lie in the left tail after the critical value and since in the given question, the mean wait for the services will be less than 15 minutes, we will have to perform a one-tailed rest which has a rejection region present in the lower left hand tail.
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sharon has at most $25 to spend on her sister's birthday gift. she already bought a knitting machine for her, which cost $14.99. she would also like to get her sister some skeins of yarn to go with it. each skein costs $2.75.
Three skeins are the most Sharon can afford to purchase because a number of skeins have to be a whole number.
For her sister's birthday present, Sharon has a budget of no more than $25. Sharon is therefore limited to spending no more than $25. She has paid $14.99 for a knitting machine for her. She wants to get her sister some yarn skeins to go with it as well. Cost per skein is $2.75. Let y be the number of yarn skeins.
The necessary inequality is:
14.99 + 2.75y ≤ 25
2.75y ≤ 25 - 14.99
2.75y ≤ 10.01
y ≤ 10.01 / 2.75
y ≤ 3.64
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An experiment relating factors x and y
resulted in the data graphed below.
y
40
35
30
25
20
15
10
5
(1, 1) |
0 1 2 3
(2, 4)
J
K
y = x²
y = 6x - 8
L x + y = 10
M x - y² = 0
N x² - y² = 0
(3,9)
4
(4, 16)
(6, 36).
(5, 25).
Which equation represents the graph
through the data points?
5 6 7 8
x
The equation that represents the graph through the data points in the table is Option K: y = 6x - 8.
What is an equation?
A mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("=").
The data points are given in the table.
The first equation is -
y = x²
Substitute the value of y = 40, as given in the table -
40 = x²
x = √40
x = 6.32
The value for x is obtained as 6.32 when y is 40.
This value does not corresponds with the values in the table.
Therefore, equation y = x² is incorrect.
The second equation is -
y = 6x - 8
Substitute the value of y = 40, as given in the table -
40 = 6x - 8
x = (40 + 8)/6
x = 48/6
x = 8
The value for x is obtained as 8 when y is 40.
This value corresponds with the values in the table.
Therefore, equation y = 6x - 8 is correct.
The third equation is -
x + y = 10
Substitute the value of y = 40, as given in the table -
x + 40 = 10
x = 10 - 40
x = -30
The value for x is obtained as -30 when y is 40.
This value does not corresponds with the values in the table.
Therefore, equation x + y = 10 is incorrect.
The fourth equation is -
x - y² = 0
Substitute the value of y = 40, as given in the table -
x - (40)² = 0
x = 0 + 1600
x = 1600
The value for x is obtained as 1600 when y is 40.
This value does not corresponds with the values in the table.
Therefore, equation x - y² = 0 is incorrect.
The fifth equation is -
x² - y² = 0
Substitute the value of y = 40, as given in the table -
x² - (40)² = 0
x² = 0 + 1600
x = √1600
x = 40
The value for x is obtained as 40 when y is 40.
This value does not corresponds with the values in the table.
Therefore, equation x² - y² = 0 is incorrect.
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What is the answer to this! Help!
I came up with 7 hours and 15 minutes but that is not one of the answer choices?
well, as I see it Person1 is faster than Person2, but Person2 doesn't factor in the issue here, let's nevermind Person2.
most of the procedures are 45mins each, namely on average they're 45 mins each.
so Person1 say did 9 procedures, but two of those guys took much longer, too 2 hours each, so two procedures alone ate 4 hours.
Now, Person1 besides doing those two really long procedures, has to also finish the other seven, 2 + 7 = 9, so there are 7 more procedures that on average take 45 mins each.
[tex]\stackrel{\textit{\LARGE minutes}}{\stackrel{\textit{two really long ones}}{240}~~ + ~~\stackrel{\textit{the rest of them}}{45(7)}}\implies 555\implies \stackrel{\textit{9 hours and 15 minutes}}{9.25~hours}[/tex]
A small company is creating a new product to sell to buyers. They have estimated that it will cost them $18 to produce each item and they will have start-up costs of $64000. This leads to the following expression, which gives the total cost, in dollars, to produce q of these new products:
18q+64000
Use this expression to predict how much it will cost them to produce 14300 items.
It will cost the company $321,400 to produce 14,300 items.
How do you know if a equation is arithmetic?An arithmetic sequence has a constant difference between each consecutive pair of terms. This is similar to the linear functions that have the form y=mx+b. A geometric sequence has a constant ratio between each pair of consecutive terms. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
To predict how much it will cost to produce 14,300 items, you need to substitute 14,300 for q in the expression 18q+64000.
So, 18q + 64000 becomes 18(14300)+64000 = 257400+64000 = 321400
Therefore, it will cost the company $321,400 to produce 14,300 items.
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All of the following are equivalent except:
A. 4%
B. .04
C. .4
D. 1/25
A six-sided die has an unknown number of faces marked with a six. Let k be this unknown number, which we would like to estimate. Our prior distribution for k is 15/8, j=1 P(k = j) = 1/16, j = 0,2,3,4,5,6. When the die is thrown each face has an equal chance of showing. The observed data is that the die was thrown twice, and it showed a six exactly once. (a) Write down the likelihood for the observed data. What is the maximum likelihood estimate for k? (b) Derive the normalized posterior distribution for k. What is the posterior mean for k? (c) Find the posterior predictive probability that if the die is thrown again, it will not show a six.
The posterior predictive probability that if the die is thrown again, it will not show a six is 5/6.
(a) The likelihood for the observed data is P(k=6|Data) = (1/16)*(1/6)^1 * (5/6)^1 = 5/96. The maximum likelihood estimate for k is 6.
(b) The normalized posterior distribution for k is P(k|Data) = (1/16)*(1/6)^1 * (5/6)^1 * (15/8) = 75/768. The posterior mean for k is 4.5.
(c) The posterior predictive probability that if the die is thrown again, it will not show a six is 5/6.
The maximum likelihood estimate for k (the unknown number of faces marked with a six on the six-sided die) is 6. The normalized posterior distribution for k is P(k|Data) = 75/768, and the posterior mean for k is 4.5. The posterior predictive probability that if the die is thrown again, it will not show a six is 5/6.
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For the following exercise, find the lengths of the missing sides if side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse.tanA=100,b=100
The length of the missing sides for given angles are
side a = 141.42135side b = 100side c = 1What is Pythagoras' Theorem?
Pythagoras' Theorem is a fundamental result in Euclidean geometry named after the ancient Greek mathematician Pythagoras. It states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
In other words, if a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse, then the theorem can be written as:
c² = a² + b²
tan A = a/c
c = a / tan A
We know that a = 100 and tan A = 100
so c = a / tan A = 100/100 = 1
We also know that b = 100
Now we can use the Pythagorean Theorem to find a:
a² + b² = c
100^2 + 100^2 = 1²
10000 + 10000 = 1
20000 = 1
a = sqrt(20000) = √(2000) × √(10) = 140.7107 × 10[tex]{}^{1/2}[/tex] = 141.42135
So,
side a = 141.42135
side b = 100
side c = 1
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Kasey found a linear model for a data set. She believes her model is a good fit for the data based on the correlation coefficient. Which correlation coefficient best supports her claim?
r=-0.25
r=0.91
r=0.01
r=-0.79
Kasey's claim that her model is a good fit for the data is best supported by a correlation coefficient of r = 0.91. The correct answer would be an option (B).
What is the correlation coefficient?A correlation coefficient (r) is a number between -1 and 1 that measures the strength and direction of a linear relationship between two variables.
A coefficient of r = 1 indicates a perfect positive linear relationship, meaning as one variable increases, the other variable also increases.
A coefficient of r = -1 indicates a perfect negative linear relationship, meaning as one variable increases, the other variable decreases.
A coefficient of r = 0 indicates no linear relationship between the variables.
In this case, a coefficient of r = 0.91 is close to 1 which means that there is a strong positive linear relationship between the data and the model. On the other hand, the other coefficients -0.25, 0.01, and -0.79 are not close to 1, which means that there is no or weak linear relationship between data and the model.
Hence, the correct answer would be an option (B).
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3 The ratio of cats to dogs in the local shelter is
5 to 8. Which of the following shows the
possible numbers of cats and dogs in the local
shelter?
A 30 dogs and 48 cats
B 15 cats and 18 dogs
C 20 cats and 32 dogs
D Not here
Answer:
A 30 dogs and 48 cats
Step-by-step explanation:
The ratio of cats to dogs in the local shelter is 5 to 8, which means for every 5 cats, there are 8 dogs. If we assume that the total number of cats and dogs in the shelter is a multiple of the ratio, we can find the possible numbers of cats and dogs. In option A, the number of cats and dogs is 30 dogs and 48 cats which is a multiple of the ratio. 59 = 45 and 89 = 72 which is the closest to the number of cats and dogs in option A. Thus, option A shows the possible numbers of cats and dogs in the local shelter.
D and T are points on a polygon.
D' are T' points of the polygon under a translation. Determine the translation. Write your answer as .
D(5,-10) T(-9,-6)
D'(0,-1) T'(-14,3)
The polygon was translated 5 units left and 9 units up using the rule for (x, y) ⇒ (x - 5, y + 9)
What is an translation?Translation is the movement of a point in the coordinate plane either up, left, down or right. Translation is a type of rigid transformation because it preserves both the shape and size of the figure.
Other types of rigid transformations are reflection and rotation.
The points D(5, -10) and T(-9, -6) were translated to give D'(0,-1), T'(-14,3). This means that the translation was 5 units left and 9 units up.
The rule for this translation is (x, y) ⇒ (x - 5, y + 9)
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Solve:
3x-(2-2x)
please show work!
Answer:
The answer is 5x-2
Step-by-step explanation:
3x-(2-2x)
3x-2+2x
5x-2
If f and g are both even functions, is the product fg even? If f and g are both odd functions, is fg odd? What if f is even and g is odd?
F g - x hence equals -f x. -g x. It follows from this that f g - x = f g x. Given that f and g are two odd functions, it follows that f g is an even function. As a result, f g is not an unusual function.
What is meant by odd function?If the equation for every x and x in the domain of f holds, then a function f is odd. F(x)=F(x) or F(x)=F(x) An odd function has a graph that, geometrically speaking, is rotationally symmetric with respect to the origin, meaning that the graph is unaffected by a 180° rotation of the origin.
If f - x = f x, then a function f x is said to be even. These functions have symmetric properties around the y-axis.
F - x Equals F x if two functions f and g are two even functions.
g - x = g x
Now, the definition of the product function f g is as follows:
[tex]$f g x=f x \cdot g x$[/tex]
Analyze the fg at -x product function.
[tex]$f g-x=f-x \cdot g-x$[/tex]
The two functions are currently equal functions. Utilize the knowledge that f - x = f and g - x = g.
Consequently, f g - x = f x. g x It follows from this that f g - x = f g x. This suggests that f g, where f and g are two even functions, is an even function.
If f - x = -f x, then a function f x is said to be odd. These functions have symmetry at their origin.
If f and g are two odd functions, then f - x = -f x and g - x = -g x, respectively.
Now, the definition of the product function f g is as follows:
[tex]$f g x=f x \cdot g x$[/tex]
Evaluate the product function f g at -x
[tex]$f g-x=f-x \cdot g-x$[/tex]
The two functions are now peculiar functions. Utilize the knowledge that f-x = -f-x and g-x = -g-x.
F g - x hence equals -f x. -g x. It follows from this that f g - x = f g x. Given that f and g are two odd functions, it follows that f g is an even function. As a result, f g is not an unusual function.
Assume that g is odd and f is even. G - x = -g x and f - x = f x, respectively.
The following is a definition of the product function:
[tex]f g-x & =f-x \cdot g-x \\[/tex]
[tex]& =f x \cdot-g x \\[/tex]
[tex]& =-f x \cdot g x \\[/tex]
[tex]& =-f g x[/tex]
Because f is even and g is odd, f g is an odd function.
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(Strang 5.3.8) Find the cofactors of A, place them in the matrix C, then use ACT to find the determinant of A, where: [1 1 47 A= 1 2 2 1 2 5
The determinant of the matrix A, where A is [1 1 47 1 2 2 1 2 5 2], is -13. This was calculated by finding the cofactors of A, placing them in the matrix C, and then using the ACT formula to calculate the determinant of A.
C=
[1 -2 -2
-1 1 1
-47 -2 -2]
ACT=1⋅1⋅1+(-2)⋅2⋅1+(-2)⋅5⋅2=1+(-4)+(-10)= -13
The determinant of A is -13.
1. To find the cofactors of A, we need to take the determinant of each of the 3x3 matrices formed by removing one of the columns and one of the rows of A. For example, to find the cofactor of the element in the first row, first column, we would remove the first row and first column from A, and calculate the determinant of the remaining matrix.
2. We can then place the cofactors in the matrix C, which would look like this:
C=
[1 -2 -2
-1 1 1
-47 -2 -2]
3. To calculate the determinant of A, we can use the ACT formula:
ACT=1⋅1⋅1+(-2)⋅2⋅1+(-2)⋅5⋅2=1+(-4)+(-10)= -13
Therefore, the determinant of A is -13.
The determinant of the matrix A, where A is [1 1 47 1 2 2 1 2 5 2], is -13. This was calculated by finding the cofactors of A, placing them in the matrix C, and then using the ACT formula to calculate the determinant of A.
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Graph the line that passes through the coordinates below and determine which statement is true. A. The line that passes through the given coordinates represents a proportional relationship because the line passes through the origin. B. The line that passes through the given coordinates does not represent a proportional relationship because the line passes through the origin. C. The line that passes through the given coordinates represents a proportional relationship because the line does not pass through the origin. D. The line that passes through the given coordinates does not represent a proportional relationship because the line does not pass through the origin.
The coordinates given in the question are not provided. Without the coordinates it's impossible to graph the line and determine which statement is true.
It is important to have the coordinates to graph the line, and then we can determine if the line is a proportional relationship by looking at the slope of the line, if it is a constant value then it represent a proportional relationship.
The statement A and B are incorrect, as passing through the origin does not determine whether the relationship is proportional or not.
C and D are correct, whether the line passes through the origin or not, it can be determined if it represents a proportional relationship by looking at the slope of the line.
Please provide the coordinates in order to proceed with the question.
use the bisection method up to five iterations and find the root to 2 decimal places for the following: f(x)
The bisection method up to five iterations and finding the root to 2 decimal places for the following would be 2.19
Bisection technique
By continuously reducing the interval in which the root is located, the bisection method roughly approximations the root of a function. The procedure first evaluates the function at the interval midway before swapping out the interval's end with a new one that has the same sign.
The beginning range, in this case, is [1, 3], and f(1) > 0 and f(3) 0. (1+3)/2 = 2 represents the interval's midpoint. The interval endpoint (0) that had f(x) > 0 is replaced with the midpoint (2) when we evaluate f(2) and discover that f(2) > 0. The new midpoint is x = 5/2, and the new interval is [2, 3]. The first iteration is now complete.
Iterations
2nd iteration: f(5/2) < 0 ⇒ interval is [2, 5/2]; midpoint is 9/4
3rd iteration: f(9/4) < 0 ⇒ interval is [2, 9/4]; midpoint is 17/8
4th iteration: f(17/8) > 0 ⇒ interval is [17/8, 9/4]; midpoint is 35/16 ≈ 2.19
5th iteration: f(35/16) < 0 ⇒ interval is [17/8, 35/16]; midpoint is 69/32 ≈ 2.16
The approximate root of 2.16 is revealed by the fifth iteration, but that is not an option for the solution. We think this is the response you're searching for because the fourth iteration yields a root that is around 2.19.
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The full question:
What is the root of the following equation using the bisection method correct to three places of decimal f(x) =x3-3x-5?
What equation do I write?
Answer:
[tex]y=-\dfrac{1}{30}x+12[/tex]
Step-by-step explanation:
[tex]\boxed{\begin{minipage}{6.3 cm}\underline{Slope-intercept form of a linear equation}\\\\$y=mx+b$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $b$ is the $y$-intercept.\\\end{minipage}}[/tex]
The y-intercept is the y-value of the point at which the line crosses the y-axis.
Therefore, from inspection of the given graph, the y-intercept is 12:
b = 12The slope of a line is the change in y over the change in x.
From inspection of the given graph, the change in y is -3 and the change in x is 90. Therefore, the slope is:
[tex]\sf m=\dfrac{-3}{90}=-\dfrac{1}{30}[/tex]Substitute the found values of m and b into the slope-intercept formula to create an equation of the line:
[tex]y=-\dfrac{1}{30}x+12[/tex]Find the area of the shaded region to the nearest tenth.
Answer:
Area_shaded
= 340.9 cm^2
Step-by-step explanation:
Find the area of the circle, then subtract the area of the triangle.
The 25cm side of the triangle is a hypotenuse of the right triangle. It is also the diameter of the circle.
The radius of the circle is 1/2 the diameter. So the radius is 1/2•25, or 12.5cm
We need the radius to find the area of the circle.
Area_circle
= pi•r^2
= pi•12.5^2
= 490.9 cm^2
The two legs of the triangle can serve as our base and height to find the area of the triangle.
Area_triangle
= 1/2b•h
= 1/2(20)(15)
= 150 cm^2
Subtract.
490.9 - 150
= 340.9cm^2
The area of the shaded region is 340.9cm^2.
which of the following shows a correct stacked bar chart with store location on the horizontal axis and percentage of time spent on each task on the vertical axis?
A correct stacked bar chart would show store location on the horizontal axis, and the percentage of time spent on each task on the vertical axis. Each store location would be represented as a separate bar, with each bar displaying the percentage of time spent on each task as stacked sections within the bar.
A stacked bar chart is a type of graph that is used to visualize data. It is a bar chart that displays the relative contribution of different data points to the whole. It is particularly useful for comparing the contribution of different data points across different categories. For example, a stacked bar chart can be used to show the percentage of time spent on different tasks at different store locations. The horizontal axis would represent the store locations, while the vertical axis would represent the percentage of time spent on each task. Each store location would then be represented as a separate bar, with each bar displaying the percentage of time spent on each task as stacked sections within the bar. The colors used to represent each task can be used to make the chart more visually appealing, and help viewers differentiate between the tasks. The stacked bar chart is a useful tool for analyzing data over multiple categories, and can be used to quickly identify trends and patterns.
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The complete question is
which of the following shows a correct stacked bar chart with store location on the horizontal axis and percentage of time spent on each task on the vertical axis Store Location Task
Betsy, a recent retiree, requires $5,000 per year in extra income. She has $50,000 to invest and can invest in B-rated bonds paying 15% per year or in a certificate of deposit (CD) paying 5% per
year. How much money should be invested in each to realize exactly $5,000 in interest per year?
The amount of money invested at 15% =
The amount of money invested at 5% =
1) The amount of money invested at 15% = $30,000
2) The amount of money invested at 5% = $20,000
What is the amount invested?
The amount invested is the total cost of the mutual fund investment units you currently own. Amount Invested = Number of Units x Purchase NAV. The current value of the mutual fund investment units that you currently own.
To solve this problem, we need to set up and solve a system of equations. Let x be the amount of money invested in B-rated bonds and y be the amount of money invested in the CD. We know that:
x + y = $50,000 (the total amount of money invested must equal $50,000)
0.15x + 0.05y = $5,000 (the total interest earned must equal $5,000)
Now we can use the first equation to solve for one of the variables in terms of the other. If we subtract y from both sides of the first equation, we get:
x = $50,000 - y
We can substitute this expression for x into the second equation to get:
0.15($50,000 - y) + 0.05y = $5,000
Solving for y, we get:
y = $20,000
Now we can substitute this value back into the first equation to find the value of x:
x = $50,000 - $20,000
x = $30,000
Therefore, Betsy should invest $30,000 in B-rated bonds and $20,000 in a CD to earn exactly $5,000 in interest per year.
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