x < 4.1, as it represents the solution set for the given inequality. A.
The solution set of the inequality x < 4.1 can be determined by examining the given answer choices:
OA. x < 4.1:
This choice represents all values of x that are strictly less than 4.1.
It is a valid solution set for the given inequality.
OB. x < -4.1:
This choice represents all values of x that are strictly less than -4.1.
It is not a valid solution set for the given inequality.
OC. x > 4.1:
This choice represents all values of x that are strictly greater than 4.1.
It is not a valid solution set for the given inequality.
OD. x ≤ 4.1:
This choice represents all values of x that are less than or equal to 4.1.
It is not a valid solution set for the given inequality because the inequality is strict (x < 4.1), not inclusive.
OE. -4.1 < x < 4.1:
This choice represents all values of x that are strictly between -4.1 and 4.1.
It is not a valid solution set for the given inequality because it does not include the possibility of x being less than -4.1 or greater than 4.1.
OF. x < -4.1 or x > 4.1:
This choice represents two separate solution sets: one for x < -4.1 and another for x > 4.1.
It is not a valid solution set for the given inequality because it combines two separate possibilities.
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Which of these situations can be represented by the opposite of −5? Use pencil and paper. Describe two more situations that can be represented by the opposite of −5.
The opposite of -5 can be represented by situations such as a temperature increase of 5 degrees and a financial gain of $5. Additionally, it can also represent a distance traveled of 5 miles and a weight gain of 5 pounds.
The opposite of -5 is 5. The opposite of a number represents the number with the opposite sign. Here are three situations that can be represented by the opposite of -5:
Situation 1: Temperature Change
If the temperature is currently -5 degrees Celsius and it undergoes a change in the opposite direction, it means it increases by 5 degrees. Therefore, the opposite of -5 represents a temperature increase of 5 degrees.
Situation 2: Financial Gain
Suppose you owe someone $5, and you receive the opposite of that amount. The opposite of owing $5 would be gaining $5. So, the opposite of -5 represents a financial gain of $5.
Additional situations that can be represented by the opposite of -5:
Situation 3: Distance Traveled
If a car has traveled -5 miles, indicating it has moved in the opposite direction, the opposite of that distance would be 5 miles. So, the opposite of -5 represents a distance traveled of 5 miles.
Situation 4: Weight Gain
Imagine someone loses 5 pounds (which can be represented as -5). The opposite of losing 5 pounds would be gaining 5 pounds. Thus, the opposite of -5 represents a weight gain of 5 pounds.
In each of these situations, the opposite of -5 denotes a change in the opposite direction or the reverse of the initial value.
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Chad created a table that shows the ratio of his sports game cards.Next, Chad created the graph below showing possible ratios for Pitchers cards to Infield cards in his deck. Which of the following statements are true?
Answer:
The 3rd answer is correct.
Step-by-step explanation:
The question involves a mathematical understanding of graphs and data interpretation, specifically ratios. To answer a question like this, typically, you would need to analyze both the graph and table for consistent ratio values. Though the question specifics are unclear, the broader concept involves understanding how ratios can be graphically represented.
Explanation:Given that the question involves ratios and cards, it appears to fall under a mathematical scope, specifically the interpretation of graphs and data. However, the information provided doesn't give specific details about Chad's data, the ratios of his sports game cards, or the graph he created that shows the possible ratios for Pitchers cards to Infield cards.
Typically, to validate any findings, you would need to look at the graph and the table. Comparing the values of the ratios in the table to the characteristics of the graph would help substantiate any claims. For instance, if Chad's graph shows that there's a 1:2 ratio of pitcher cards to Infield cards, this should be reflected in the table of his sports game cards.
Despite the ambiguous details in the question, you can still grasp the concept of ratios and how they can be represented graphically. For example, if you have a 3:5 ratio of oranges to apples, this can be depicted on a graph where one unit on the Y-axis represents 3 oranges and the corresponding unit on the X-axis signifies 5 apples.
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Find the tangent line and the normal line to the curve at the given point.
The equation of the normal line to the curve x^2y^2 = 4 at the point (-1,-2) is y = x - 1.
To find the tangent line and normal line to the curve x^2y^2 = 4 at the point (-1,-2), we need to determine the derivative of the curve equation with respect to x and evaluate it at the given point.
First, let's differentiate the equation x^2y^2 = 4 implicitly with respect to x using the chain rule:
2x * (y^2) + 2y * (2xy * dy/dx) = 0
Simplifying the equation, we have:
2xy^2 + 4xy(dy/dx) = 0
Now, let's find the value of dy/dx at the point (-1,-2). Substitute x = -1 and y = -2 into the equation:
2*(-1)(-2)^2 + 4(-1)*(-2)(dy/dx) = 0
Simplifying further:
8 + 8(dy/dx) = 0
8(dy/dx) = -8
dy/dx = -1
We have found the derivative dy/dx at the point (-1,-2), which is -1. This represents the slope of the tangent line to the curve at that point.
Using the point-slope form of a line, we can write the equation of the tangent line as:
y - y₁ = m(x - x₁)
Substituting the values of (-1,-2) and dy/dx = -1 into the equation, we have:
y - (-2) = -1(x - (-1))
y + 2 = -1(x + 1)
y + 2 = -x - 1
y = -x - 3
Therefore, the equation of the tangent line to the curve x^2y^2 = 4 at the point (-1,-2) is y = -x - 3.
To find the normal line, we know that the slope of the normal line is the negative reciprocal of the slope of the tangent line. Therefore, the slope of the normal line is 1.
Using the point-slope form of a line again, we can write the equation of the normal line as:
y - y₁ = m'(x - x₁)
Substituting the values of (-1,-2) and m' = 1 into the equation, we have:
y - (-2) = 1(x - (-1))
y + 2 = x + 1
y = x - 1
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SOMEINE GELP IYS DUE IN HOURS
Answer: the answer is use ur ai in Brainly, it helped me a lot
Step-by-step explanation:
A rectangular tin measure 20cm by 10cm by 10cm. What's it's capacity in litres
Answer:
2 Litres
Step-by-step explanation:
A rectangular tin measure 20cm by 10cm by 10cm. What's it's capacity in litres
find Volume ( Volume = L x W x h)20 * 10 * 10 = 2000cm^3
Convert cubic centimeters to litres1000 cm^3 = 1 Litres
2000 cm^3 = 2 Litres
125
(a) What is the measure of ange L?
(b) What is x?
(22-10)
I
(c) What is the measure of angle M?
65 N
The values of L and M in the triangle displayed are 55 and 60 respectively.
The value of angle L can be obtained thus :
125 + L = 180 (sum of angles in a triangle)
L = 180 - 125 = 55°
B.
The value of L can be calculated thus:
55 + (2x - 10) + 65 = 180 (sum of internal angles of a triangle)
120 + 2x - 10 = 180
110+2x = 180
2x = 180-110
x = 35
M = 2(35) -10 = 60°
Therefore, L = 55 and M = 60.
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Two sets that contain exactly the same elements are called ___ sets.
Two sets that contain exactly the same elements are called "equal sets" or "identical sets."
In set theory, the concept of equality between sets is defined by the axiom of extensionality, which states that two sets are equal if and only if they have the same elements.
To illustrate this concept, let's consider two sets: Set A and Set B. If every element of Set A is also an element of Set B, and vice versa, then we say that Set A and Set B are equal sets. In other words, the sets have the exact same elements, regardless of their order or repetition.
For example, if Set A = {1, 2, 3} and Set B = {3, 2, 1}, we can observe that both sets contain the same elements, even though the order of the elements is different. Therefore, Set A is equal to Set B.
In summary, equal sets refer to two sets that possess exactly the same elements, without considering the order or repetition of the elements. The concept of equality is fundamental in set theory and forms the basis for various operations and theorems in mathematics.
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Order these from least to greatest.
Answer:
Least to greatest:
√143
4π
√79 + √63
Step-by-step explanation:
√79 + √63 = 16.82
4π = 12.57
√143 = 11.96
Please i give 25 points
If the coordinates of point E are (-4,y), what is the value of y ?
The table displays the scores of students on a recent exam. Find the mean of the
scores to the nearest 10th.
From the Table display of scores and students on a recent exam, The mean of the scores to the nearest 10th is 83.7.
To find the mean of the scores, we need to calculate the sum of the products of each score and its corresponding number of students, and then divide it by the total number of students.
Here's the calculation:
(70 * 6) + (75 * 3) + (80 * 9) + (85 * 5) + (90 * 7) + (95 * 8) = 420 + 225 + 720 + 425 + 630 + 760 = 3180
Total number of students = 6 + 3 + 9 + 5 + 7 + 8 = 38
Mean = Sum of products / Total number of students = 3180 / 38 ≈ 83.7 (rounded to the nearest tenth)
Therefore, the mean of the scores is approximately 83.7.
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need help please see attacged
The domain of f(x) is (0, +∞), and the range is (0, +∞). The graph of the function will have a vertical asymptote at x = 0 and will continuously increase as x approaches positive infinity.
To graph the given logarithmic function f(x) based on the table, we can use the information provided. The table presents pairs of values (x, y), where x represents the input and y represents the output of the function.
From the table, we can observe that the input values (x) are positive and non-zero. This indicates that the domain of the function is x > 0, meaning x is greater than zero. In interval notation, the domain would be written as (0, +∞).
Looking at the output values (y) in the table, we see that they are all positive. This suggests that the range of the function is y > 0, meaning y is greater than zero. In interval notation, the range would be expressed as (0, +∞).
Graphically, the function f(x) is logarithmic and will have a vertical asymptote at x = 0. As x approaches positive infinity, the function increases without bound. The graph starts at y = 125 when x = 1, and it intersects the y-axis at y = 5 when x = 1.5. The graph of the function will resemble a curve that approaches but never touches the x-axis.
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find x using the trigonometric function
The value of x in the diagram given in the question is 6
How do i determine the value of x?From the question given above, the following data were obtained:
Angle (θ) = 60Adjacent = 3Hypotenuse = x =?The value of x can be obtained using cos ratio.
Cos θ = Adjacent / Hypotenuse
Cos 60 = 3 / x
Cross multiply
x × Cos 60 = 3
Divide both sides by Cos 60
x = 3 / Cos 60
= 3 / 0.5
= 6
Thus, the value of x is 6
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Which of the rays or segments below is a chord of circle O?
A) ->
TC
B)—
SO
C)—>
TU
D)—
FC
The ray or segment that is a chord is (d) segment FC
How to determine the ray that is a chordFrom the question, we have the following parameters that can be used in our computation:
The circle
By definition, a chord is a straight line that joins points of the circle without passing through the center
The ray that has the above properties is ray FC
Hence, the segments that is a chord is (d) FC
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Guys i need help!! Im not understanding at all.
Answer:
H= [4 -1
4 0]
Step-by-step explanation:
If sin 0=8/17, and tan0<0, what is cos(0)
Use exact values. No decimals.
(0 means theta)
Answer:
Given that sin(θ) = 8/17 and tan(θ) < 0, we can use the trigonometric identity to find cos(θ).
Since sin(θ) = opposite/hypotenuse, we can assign a value of 8 to the opposite side and a value of 17 to the hypotenuse.
Let's assume that θ is an angle in the second quadrant, where sin(θ) is positive and tan(θ) is negative.
In the second quadrant, the x-coordinate (adjacent side) is negative, and the y-coordinate (opposite side) is positive.
Using the Pythagorean theorem, we can find the length of the adjacent side:
adjacent^2 = hypotenuse^2 - opposite^2
adjacent^2 = 17^2 - 8^2
adjacent^2 = 289 - 64
adjacent^2 = 225
adjacent = √225
adjacent = 15
Therefore, the length of the adjacent side is 15.
Now we can calculate cos(θ) using the ratio of adjacent/hypotenuse:
cos(θ) = adjacent/hypotenuse
cos(θ) = 15/17
So, cos(θ) = 15/17.
how do i get 0.225 in fraction form while showing my work
0.225 can be expressed as the fraction 1/200.
To convert 0.225 to a fraction, we need to understand the place value of each digit. In this case, the digit 2 is in the hundredths place (2/100), the digit 2 is in the thousandths place (2/1000), and the digit 5 is in the ten-thousandths place (5/10000).
Next, we can simplify the fraction by finding the greatest common divisor (GCD) of the numerator and denominator. In this case, the GCD of 2, 100, 1000, and 10000 is 2.
Now, we divide both the numerator and denominator by 2 to simplify the fraction. The numerator becomes 1 (2 divided by 2) and the denominator becomes 5000 (10000 divided by 2).
Further simplification is possible by dividing both the numerator and denominator by 5. The numerator becomes 1 (1 divided by 1) and the denominator becomes 1000 (5000 divided by 5).
Again, we can divide both the numerator and denominator by 5. The numerator remains 1 and the denominator becomes 200 (1000 divided by 5).
Therefore, 0.225 can be expressed as the fraction 1/200.
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f(x)=-4x+7 and g(x)=x^3 choose the expression for (fog)(x)
Answer:
(fog)(x) = -4x^3 + 7.
Step-by-step explanation:
We can think of (f o g)(x) as f(g(x)). This shows that we plug in the entire g(x) function for x in f(x) and simplify:
f(x^3) = -4(x^3) + 7
f(x^3) = -4x^3 + 7
Thus, (f o g)(x) = -4x^3 + 7
Jana entered the following group of values into the TVM Solver of her
graphing calculator. N=48; 1% = 0.6; PV = ; PMT=-290; FV = 0; P/Y = 12; C/Y
= 12; PMT:END. Which of these problems could she be trying to solve?
OA. A person can afford a $290-per-month loan payment. If he is being
offered a 48-year loan with an APR of 7.2%, compounded monthly,
what is the mosioney that he can borrow?
B. A person can afford a $290-per-month loan payment. If he is being
offered a 4-year loan with an APR of 0.6%, compounded monthly,
what is the most money that he can borrow?
C. A person can afford a $290-per-month loan payment. If he is being
offered a 48-year loan with an APR of 0.6%, compounded monthly,
what is the most money that he can borrow?
D. A person can afford a $290-per-month loan payment. If he is being
offered a 4-year loan with an APR of 7.2%, compounded monthly,
what is the most money that he can borrow?
Answer:
Jana is likely trying to solve option B:
"A person can afford a $290-per-month loan payment. If he is being offered a 4-year loan with an APR of 0.6%, compounded monthly, what is the most money that he can borrow?"
Step-by-step explanation:
Option B is the correct choice because it aligns with the values entered by Jana into the TVM Solver. Jana set the loan term (N) to 48, which represents 48 months (4 years). The APR value of 0.6% also matches what Jana inputted.
By selecting option B, Jana is attempting to find out the maximum amount of money she can borrow given that she can afford a $290-per-month loan payment and is offered a 4-year loan with an APR of 0.6%, compounded monthly.
This calculation will help Jana determine the loan amount that corresponds to her desired monthly payment and the given loan terms.
50 Points! Multiple choice geometry question. Photo attached. Thank you!
Answer:
B. Lenghts of the diagonals
Step-by-step explanation:
Find the midpoint of WZ of WXYZ with the vertices W(0, 0), X(h, 0), Y(h,b), and Z(0, b).
(0, h/2)
(h/2, b/2)
(0, b/2)
(h/2, 0)
Third option is correct.The midpoint of WZ of WXYZ with the vertices W(0, 0), X(h, 0), Y(h,b), and Z(0, b) is (0, b/2).
To find the midpoint of segment WZ, we need to average the x-coordinates and the y-coordinates of the endpoints.
The coordinates of point W are (0, 0), and the coordinates of point Z are (0, b).
To find the x-coordinate of the midpoint, we average the x-coordinates of W and Z:
(x-coordinate of W + x-coordinate of Z) / 2 = (0 + 0) / 2 = 0 / 2 = 0
To find the y-coordinate of the midpoint, we average the y-coordinates of W and Z:
(y-coordinate of W + y-coordinate of Z) / 2 = (0 + b) / 2 = b / 2
Therefore, the midpoint of segment WZ is (0, b/2).
So, the correct answer is (0, b/2).
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the sum of five consecutive even numbers is 220. find the smallest of these numbers.
Answer:
The smallest number is 40.
Step-by-step explanation:
Let the number be x. Then the next 4 number will be x+2, x+4, x+6, x+8
.°. x+x+2+x+4+x+6+x+8 = 220
5x + 20 = 220
5x = 200
x = 40
Therefore the smallest of the five consecutive numbers is 40
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The conditional statement below is true. If possible, write the biconditional statement.
If 2x = 18, then x = 9.
The biconditional statement for the given conditional statement would be:
2x = 18 if and only if x = 9.
The given conditional statement "If 2x = 18, then x = 9" can be represented symbolically as p → q, where p represents the statement "2x = 18" and q represents the statement "x = 9".
To form the biconditional statement, we need to determine if the converse of the conditional statement is also true. The converse of the original statement is "If x = 9, then 2x = 18". Let's evaluate the converse statement.
If x = 9, then substituting this value into the equation 2x = 18 gives us 2(9) = 18, which is indeed true. Therefore, the converse of the original statement is true.
Based on this, we can write the biconditional statement:
2x = 18 if and only if x = 9.
The biconditional statement implies that if 2x is equal to 18, then x must be equal to 9, and conversely, if x is equal to 9, then 2x is equal to 18. The biconditional statement asserts the equivalence between the two statements, indicating that they always hold true together.
In summary, the biconditional statement is a concise way of expressing that 2x = 18 if and only if x = 9, capturing the mutual implication between the two statements.
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15. A landscaper uses a wheelbarrow to move soil to a certain region of the garden. A
wheelbarrow can hold approximately 6 cubic feet of soil. The soil is damped out into a pile
that makes the shape of a cone. The landscaper calculates that once the pille has a diameter
of 13 foet and a height of 3 feet, there will be sufficient soil for the project How maty
wheelbarrow loads of soil are needed for this project?
The number of wheelbarrow loads of soil required for this project is 71.
The landscaper uses a wheelbarrow to transport soil to a particular region of the garden. A wheelbarrow can accommodate roughly 6 cubic feet of soil. Once the pile has a diameter of 13 feet and a height of 3 feet, the landscaper determines that there will be enough soil for the project.
Area of a cone =1/3πr²hwhere r = 13/2 feet and h = 3 feet.
Substituting the given values to find the area of the cone.1/3 x 3.14 x (6.5)² x 3 = 422.55 cubic feet.Then, divide the total amount of soil required by the volume of soil that a wheelbarrow can hold to determine the number of wheelbarrow loads required.
Number of wheelbarrow loads = (Volume of soil needed) / (Volume of one wheelbarrow)Volume of one wheelbarrow = 6 cubic feet.The total volume of soil required is 422.55 cubic feet.
Therefore, the number of wheelbarrow loads required is:Number of wheelbarrow loads = (422.55) / (6) = 70.42 ≈ 71 wheelbarrow loads, which is the final answer.
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A quadratic equation has zero real number solutions. Which could be the discriminant value associated with this
equation?
-5
1
6
Save and Exit
The discriminant value associated with this equation include the following: A. -5.
What is a quadratic equation?In Mathematics and Geometry, the standard form of a quadratic equation is represented by the following equation;
ax² + bx + c = 0
In this scenario, we would determine the number of zeros by using the discriminant formula as follows;
Discriminant, D = b² - 4ac
This ultimately implies that, the discriminant value must be a negative numerical value and two complex roots such as -5;
-5 = b² - 4ac
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Complete Question:
A quadratic equation has zero real number solutions. which could be the discriminant value associated with this equation?
a. –5 b. 0 c. 1 d. 6
pls helpppppppppppppppppp
Answer:
Step-by-step explanation:
Bisector means breaking the segment in half.
answer is A. to have a length exactly half the segment
.
At a meat packing plant in Green Bay, the owners want to begin a continuing education program so their 186 employees can get a college education online if they desire. The following table represents an incomplete picture of the results. Use the following two-way frequency table for the questions below:
Men Women Total
No College Credit 28 A B
Some College C D 81
College Graduate 15 22 E
Total 79 F 186
a. Fill in the missing data in the table for values A through F. Explain the strategies you used to get each answer.
b. Describe a few pieces of data in terms of joint relative frequency. Explain why these data are both joint and relative.
c. Explain a few ways we can summarize pieces of this table using conditional relative and marginal relative frequency.
d. Are the data independent or dependent? Why?
Answer:
a. To fill in the missing data in the table, we can use the information given in the table along with the fact that the total number of employees is 186.
For value A: Since the total number of employees with no college credit is 28, and the total number of men is 79, we can subtract the number of men with some college (C) and college graduates (15) from the total number of men to find the missing value A. So A = 79 - C - 15.
For value B: Since the total number of women is 186, we can subtract the number of women with some college (D) and college graduates (22) from the total number of women to find the missing value B. So B = 186 - D - 22.
For value C: Since the total number of employees with some college is 81, and we have already determined the values A and D, we can subtract A and D from the total number of employees with some college to find the missing value C. So C = 81 - A - D.
For value D: Similarly, we can subtract B and E from the total number of women to find the missing value D. So D = 186 - B - E.
For value E: Since the total number of college graduates is 37 (15 men + 22 women), we can subtract the number of college graduates among men (15) from the total to find the missing value E. So E = 37 - 15.
For value F: Since the total number of employees is 186, we can subtract the total number of men (79) from the total to find the missing value F. So F = 186 - 79.
b. Joint relative frequency refers to the proportion of individuals that fall into a particular combination of categories. For example, the joint relative frequency of men with no college credit is the number of men with no college credit divided by the total number of employees (28/186). These data are joint and relative because they represent the proportion of individuals in a specific category combination relative to the total population.
c. To summarize the data using conditional relative frequency, we can calculate the proportion of individuals in each category given a specific condition. For example, we can calculate the conditional relative frequency of women who are college graduates by dividing the number of women who are college graduates (22) by the total number of women (186). Similarly, we can calculate the conditional relative frequency of men with some college by dividing the number of men with some college (C) by the total number of men (79).
To summarize the data using marginal relative frequency, we can calculate the proportion of individuals in each category by dividing the number of individuals in that category by the total number of individuals. For example, we can calculate the marginal relative frequency of men by dividing the total number of men (79) by the total number of employees (186). Similarly, we can calculate the marginal relative frequency of college graduates by dividing the total number of college graduates (37) by the total number of employees (186).
d. The data in the table can be analyzed to determine if there is an association or relationship between the variables. If the values in the table change depending on the categories of the other variable, then the variables are dependent. In this case, the data is dependent because the number of individuals with certain educational levels (no college credit, some college, college graduate) varies based on their gender. For example, there are different proportions of men and women in each educational category, indicating a relationship between gender and education level.
Step-by-step explanation:
The missing values in the two-way frequency table are filled based on the given values and the composition of the table. The table represents joint relative frequency, which is the proportion of specific groups in the total population. We can summarize the data using marginal and conditional relative frequencies, and the data are considered dependent because an employee's education level depends on their gender.
Explanation:To fill in the missing values of the two-way frequency table, we need to use the given numbers and the rules of the two-way frequency table. Here are the strategies used for filling in the values for A through F:
A = Total number of women - Total number of women with some college and college graduate education (in this case A = F - D - 22, because we know the number of total women F and the number of women college graduates 22, but D is still unknown).B = Total number of employees - Total number of men - Total number of women (B = 186 - 79 - F).C = Total number of some college - Number of women with some college (C = 81 - D)D = Total number of some college - Number of men with some college (D = 81 - C).E = Total number of employees - Total of men and women with and without college (E = 186 - B - 81 - 37F = Total number of employees - Total number of men (F = 186 - 79).The table will also represent joint relative frequency because each cell represents the joint occurrence of two categories (gender and education level). For example, the number of male employees with no college credit (28) divided by the total number of employees (186) is a joint relative frequency.
We may summarize the table data using conditional relative frequency and marginal relative frequency. The marginal relative frequency is the total of each row or column divided by the grand total. The conditional relative frequency would be, for example, the proportion of women among those with no college credit.
The data are dependent because the education level depends on whether the employee is a man or a woman.
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Como se llama un ángulo de 192 grados?
Answer:
reflex angle
Step-by-step explanation:
the angle of 192 degrees is called a reflex angle
Find the exact value of cos 105⁰.
a. √√√2-√6
4
b.
√2+√6
4
C.
4
d. √2+√6
4
Answer:
[tex]\dfrac{\sqrt{2}-\sqrt{6} }{4} }[/tex]
Step-by-step explanation:
Find the exact value of cos(105°).
The method I am about to show you will allow you to complete this problem without a calculator. Although, memorizing the trigonometric identities and the unit circle is required.
We have,
[tex]\cos(105\°)[/tex]
Using the angle sum identity for cosine.
[tex]\boxed{\left\begin{array}{ccc}\text{\underline{Angle Sum Identity for Cosine}}\\\\\cos(A+B)=\cos(A)\cos(B)-\sin(A)\sin(B)\end{array}\right}[/tex]
Split the given angle, in degrees, into two angles. Preferably two angles we can recognize on the unit circle.
[tex]105\textdegree=45\textdegree+60\textdegree\\\\\\\therefore \cos(105\textdegree)=\cos(45\textdegree+60\textdegree)[/tex]
Now applying the identity.
[tex]\cos(45\textdegree+60\textdegree)\\\\\\\Longrightarrow \cos(45\textdegree+60\textdegree)=\cos(45\textdegree)\cos(60\textdegree)-\sin(45\textdegree)\sin(60\textdegree)[/tex]
Now utilizing the unit circle.
[tex]\boxed{\left\begin{array}{ccc}\text{\underline{From the Unit Circle:}}\\\\\cos(45\textdegree)=\dfrac{\sqrt{2} }{2}\\\\\cos(60\textdegree)=\dfrac{1}{2}\\\\\sin(45\textdegree)=\dfrac{\sqrt{2} }{2}\\\\\sin(60\textdegree)=\dfrac{\sqrt{3} }{2} \end{array}\right}[/tex]
[tex]\cos(45\textdegree)\cos(60\textdegree)-\sin(45\textdegree)\sin(60\textdegree)\\\\\\\Longrightarrow \Big(\dfrac{\sqrt{2} }{2}\Big)\Big(\dfrac{1 }{2}\Big)-\Big(\dfrac{\sqrt{2} }{2}\Big)(\dfrac{\sqrt{3} }{2}\Big)[/tex]
Now simplifying...
[tex]\Big(\dfrac{\sqrt{2} }{2}\Big)\Big(\dfrac{1 }{2}\Big)-\Big(\dfrac{\sqrt{2} }{2}\Big)(\dfrac{\sqrt{3} }{2}\Big)\\\\\\\Longrightarrow \Big(\dfrac{\sqrt{2} }{4} \Big)-\Big(\dfrac{\sqrt{6} }{4} \Big)\\\\\\\therefore \cos(105\textdegree)= \boxed{\boxed{\frac{\sqrt{2}-\sqrt{6} }{4} }}[/tex]
Please help me with this question
Answer:
try (gauth math) could be helpful take screen shot and upload it it may be there or not hopefully it is