To prove that, for any real numbers a and b and for integers n>0, n∑ (a+ ib) = ½ (n +1) / (2a+nb), we can use mathematical induction.
Let P(n) denote the statement n∑ (a+ ib) = ½ (n +1) / (2a+nb).
First, let us prove that P(1) is true.
For n=1, n∑ (a+ ib) = (a+ ib), which is equal to ½ (1 +1) / (2a+1b) by algebraic manipulation. Hence, P(1) is true.
Now, let us assume that P(k) is true for some k ≥ 1. That is,
k∑ (a+ ib) = ½ (k +1) / (2a+kb). We must show that P(k+1) is also true.
By definition, (k+1)∑ (a+ ib) = k∑ (a+ ib) + (a+ ib), which is equal to ½ (k +1) / (2a+kb) + (a+ ib) after substituting k∑ (a+ ib) with ½ (k +1) / (2a+kb).
Again, by algebraic manipulation, we get (k+1)∑ (a+ ib) = ½ (k +2) / (2a+k+1b), which is equal to ½ (k+1 +1) / (2a+k+1b).
Hence, P(k+1) is true.
By mathematical induction, P(n) is true for all n >0. Therefore, for any real numbers a and b and for integers n >0, n∑ (a+ ib) = ½ (n +1) / (2a+nb).
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1 Professor Peterson is buying a writing
desk. The width of the desk must be less
than 4 ft.
HELP
The inequality of the width of the desk must be less than 4 ft is w < 4.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
Inequalities are mathematical statements that compare two expressions using symbols like "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "!=" (not equal to).
In this case, the problem states that the width of the desk must be less than 4 ft.
We can use the symbol "<" to indicate that the width (w) is smaller than 4 feet. Therefore, we can write the inequality as w < 4, which means that any value of w that is less than 4 feet satisfies the given condition.
Thus,
The width of the desk must be less than 4 ft is w < 4.
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5. in which number is the 3-1/100 the value of the 3 in 43,781? a. 345 b. 237, 895 c. 5,732
The number in which the value of 3 is 3-1/100 is 345. The correct option is a.
The given number is 43,781.
The value of the 3 in 43,781 is 3,000.
The value of 3-1/100 is 2.99.
We are supposed to find out in which number 2.99 is the value of the 3 in 43,781.
Given options are:
a. 345
b. 237,895
c. 5,732
We'll calculate the values of 3-1/100 in each option.
a. The value of 3-1/100 in 345 is 2.99.
So, the correct option is a.
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PLS HELP! WILL MARK BRAINLYIST!!
1. What do you know about the trigonometric ratios for similar triangles?
2. What is the relationship between the sine and cosine of complementary angles, and why is this relationship true?
3. How do you use trigonometric ratios to solve for a missing side or angle of a right triangle?
Possible answers??
2. The relationship between the sine and cosine of complementary angles is that they are equal. Angles A and B are complementary if: A+B=90.
3. Sineθ=opposite/hypotenuse, cosθ=adjacent/hypotenuse, tanθ=opposite/adjacent.
PLEASE HELP, I DON'T KNOW IF THESE ARE RIGHT
1) Trigonometric ratios for similar triangles state that the ratios of corresponding sides of similar triangles are equal. 2) The sine and cosine of complementary angles have the property of being not only equal but also complementary to one another. 3) trigonometric ratios can be used to solve for a missing side or angle of a right triangle.
What are trigonometric ratios?1. Trigonometric ratios for similar triangles state that the ratios of corresponding sides of similar triangles are equal. Therefore, the ratios of the sine, cosine, and tangent of the corresponding angles in similar triangles will also be equal.
2. The sine and cosine of complementary angles have the property of being not only equal but also complementary to one another. This means that the sine of an angle is equal to its complement's cosine, and vice versa.
3. Using the appropriate formula based on the given information, trigonometric ratios can be used to solve for a missing side or angle of a right triangle.
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Solve by distributing: 4(4y - 6) *
Answer:
16y-24
Step-by-step explanation:
4(4y−6)
Use the distributive property to multiply 4 by 4y−6.
16y−24
Answer:
The answer is 16y - 24
Step-by-step explanation:
4(4y - 6)
4 × 4y - 4 × 6
16y - 4 × 6
Answer : 16y - 24
The equation for the regression line that predicts home equity using FICO credit score as the explanatory variable is
Ý – 1798X + 0 =
What is the interpretation of the slope?
________
What is the interpretation of the intercept?
________
The interpretation of the slope is that the FICO credit score increases.
The interpretation of the intercept is that it is the home equity when FICO credit score.
What is the slope-intercept form?In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;
y = mx + b
Where:
m represent the slope or rate of change.x and y are the points.b represent the y-intercept or initial value.Based on the information provided above, a linear equation that models the home equity using FICO credit score is given by;
y = mx + b
y = 1798x + 0
In conclusion, we can logically deduce that the slope is 1798 and it represents the explanatory variable and an increase in FICO credit score because it is positive.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
A generally useful way to enhance reliability is a. to use the smallest possible number of items. b. to measure something that is minimally important. c. to aggregate your measurements. d. to maximize error variance.
a. Using the smallest possible number of items, is not generally a way to enhance reliability.
b. Measuring something that is minimally important, does not necessarily enhance reliability.
c. Aggregating measurements, is the generally useful way to enhance reliability.
d. Maximizing error variance, is not a way to enhance reliability.
Among the options provided, the generally useful way to enhance reliability is option c: to aggregate your measurements.
Aggregating measurements refers to combining multiple measurements or observations to improve the overall reliability of the data. By taking multiple measurements, you can reduce the impact of random errors and obtain a more accurate estimate of the true value or attribute you are measuring.
Option a, using the smallest possible number of items, is not generally a way to enhance reliability. In fact, having a larger sample size or more data points often improves reliability by reducing the effects of random variations.
Option b, measuring something that is minimally important, does not necessarily enhance reliability. The importance of what is being measured is not directly related to the reliability of the measurements. Reliability focuses on the consistency and accuracy of the measurements themselves.
Option d, maximizing error variance, is not a way to enhance reliability. Error variance refers to the variability or spread of errors in measurement. Maximizing error variance would lead to less reliable measurements as it increases the uncertainty and inconsistency of the data.
In summary, option c, aggregating measurements, is the generally useful way to enhance reliability.
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The difference of a number c and 17 is more than 33
Answer:
\(c > 50\)
Step-by-step explanation:
\(c -17 > 33 \\ c -17 +17 > 33 +17 \\ c > 50\)
cuanto es "y=2x + 5" ??
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
y-(2*x+5)=0
STEP1:
Equation of a Straight Line
1.1 Solve y-2x-5 = 0
Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).
"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.
In this formula :
y tells us how far up the line goes
x tells us how far along
m is the Slope or Gradient i.e. how steep the line is
b is the Y-intercept i.e. where the line crosses the Y axis
The X and Y intercepts and the Slope are called the line properties. We shall now graph the line y-2x-5 = 0 and calculate its properties
Calculate the Y-Intercept :
Notice that when x = 0 the value of y is 5/1 so this line "cuts" the y axis at y= 5.00000
y-intercept = 5/1 = 5.00000
Calculate the X-Intercept :
When y = 0 the value of x is 5/-2 Our line therefore "cuts" the x axis at x=-2.50000
x-intercept = 5/-2 = -2.50000
Calculate the Slope :
Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 5.000 and for x=2.000, the value of y is 9.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 9.000 - 5.000 = 4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
Slope = 4.000/2.000 = 2.000
Geometric figure: Straight Line
Slope = 4.000/2.000 = 2.000 x-intercept = 5/-2 = -2.50000 y-intercept = 5/1 = 5.00000To reduce a fraction, divide the numerator and denominator by the ? . Select one:
a. denominator
b. numerator
c. same number
d. smallest fraction
To reduce a fraction, you divide the numerator and denominator by the same number.
This number is the greatest common divisor (GCD) of the numerator and denominator. By dividing both the numerator and denominator by their GCD, you simplify the fraction to its simplest form. The GCD is the largest number that evenly divides both the numerator and denominator without leaving a remainder.
Dividing by the GCD ensures that the fraction is expressed in its lowest terms, where the numerator and denominator have no common factors other than 1. This process eliminates any common factors and reduces the fraction to its simplest representation.
Therefore, To reduce a fraction, you divide the numerator and denominator by the same number. Option c is correct.
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Please help with real answer :-(
Answer:
B
Step-by-step explanation:
subtract the function of h by the real number and write it in form of inequality
Which of the following situations results in an answer of 23 ? Select three that apply.
Two gallons of water are needed to fill 3 fish tanks of equal size. How many gallons of water are required for each tank?
Three cats share 2 cans of tuna. How much of a can does each cat receive?
Two bags of bird seed are split among 5 parrots. What fraction of a bag does each parrot receive?
Two apples are split among 3 people. How much of an apple does each person receive?
Three dogs each drink 2 cups of water. How many cups of water do the dogs drink in all?
Three cupcakes are divided among 2 children. How much of a cupcake does each child receive?
Answer:
The first, second, and fourth questions.
Step-by-step explanation:
None of these result in an answer of 23, so I'm assuming that you meant 2/3.
"Two gallons of water are needed to fill 3 fish tanks of equal size. How many gallons of water are required for each tank?"
2 gallons divided between 3 tanks is 2 divided by 3, so 2/3.
"Three cats share 2 cans of tuna. How much of a can does each cat receive?"
2 cans divided between 3 cats - it's the same as the above problem, just with cats and tuna cans instead of tanks and gallons of water. Each cat gets 2/3 of a can.
"Two bags of bird seed are split among 5 parrots. What fraction of a bag does each parrot receive?"
2 bags divided between 5 parrots would be 2/5 of a bag for each parrot.
"Two apples are split among 3 people. How much of an apple does each person receive?"
Two apples split among 3 people - like the first 2 questions, this also equals 2/3.
"Three dogs each drink 2 cups of water. How many cups of water do the dogs drink in all?"
Three dogs EACH drink 2 cups of water means that the answer is 2*3=6 cups.
"Three cupcakes are divided among 2 children. How much of a cupcake does each child receive?"
Three cupcakes are split between 2 children - they will each get 3/2 of a cupcake, or 1 1/2.
in a box of 20 candies, there are 8 which contain nuts. if five pieces are randomly selected and consumed what is the probability of selecting 0, 1, 2, 3, 5, 5 candies
The probability of selecting 0 candies containing nuts is 0.07776, the probability of selecting 1 candy containing nuts is 0.2592, the probability of selecting 2 candies containing nuts is 0.3456, the probability of selecting 3 candies containing nuts is 0.2304.
The number of candies containing nuts follows a binomial distribution with parameters n = 5 and p = 8/20 = 0.4, where n is the number of trials and p is the probability of success (selecting a candy containing nuts).
To find the probability of selecting 0, 1, 2, 3, 4, or 5 candies containing nuts, we can use the binomial probability formula:
P(X = k) = (n choose k) * p^k * (1-p)^(n-k)
where X is the number of candies containing nuts selected, k is the number of successes (candies containing nuts) we want to find the probability of, (n choose k) is the binomial coefficient which represents the number of ways to choose k successes out of n trials.
For k = 0, we have:
P(X = 0) = (5 choose 0) * 0.4^0 * 0.6^5 = 0.07776
For k = 1, we have:
P(X = 1) = (5 choose 1) * 0.4^1 * 0.6^4 = 0.2592
For k = 2, we have:
P(X = 2) = (5 choose 2) * 0.4^2 * 0.6^3 = 0.3456
For k = 3, we have:
P(X = 3) = (5 choose 3) * 0.4^3 * 0.6^2 = 0.2304
For k = 4, we have:
P(X = 4) = (5 choose 4) * 0.4^4 * 0.6^1 = 0.0768
For k = 5, we have:
P(X = 5) = (5 choose 5) * 0.4^5 * 0.6^0 = 0.01024
Therefore, the probability of selecting 0 candies containing nuts is 0.07776, the probability of selecting 1 candy containing nuts is 0.2592, the probability of selecting 2 candies containing nuts is 0.3456, the probability of selecting 3 candies containing nuts is 0.2304, the probability of selecting 4 candies containing nuts is 0.0768, and the probability of selecting 5 candies containing nuts is 0.01024.
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y =
the solution to the
You can use the interactive
-2x +2y = -4
3x + 3y = -18
Answer:
ur welcoem
Step-by-step explanation:
32x - 4 = 4x2 + 60
For the equation shown, choose the description of the solutions
The description of the solutions for the given equation is that it has either one solution or two identical solutions.
The given equation is:
32x - 4 = 4x² + 60
To find the description of the solutions, we can first rewrite the equation in standard form, which is a quadratic equation in the form of:
ax² + bx + c = 0
Let's rearrange the given equation to match the standard form:
4x² - 32x + 64 = 0
Now we can compare the coefficients of the standard form equation:
a = 4
b = -32
c = 64
To determine the description of the solutions, we can look at the discriminant (b² - 4ac) of the quadratic equation.
Discriminant = (-32)² - 4 × 4 × 64
= 1024 - 1024
= 0
Since the discriminant is equal to zero, this indicates that the quadratic equation has equal and real solutions.
In other words, the equation has one solution or two identical solutions.
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Find the Z-scores that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution.
The z score that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution is ±0.77.
Given that the z score separates the 56% of the distribution from the area in the tails of the standard normal distribution.
In a normal distribution in with mean μ and standard deviation σ, the z score of a measure X is as under:
Z=(X-μ)/σ
It is used to measure how many standard deviations the measure is from the mean.
After finding the z score we have to look at the z score table and find the p value associated with this z score, which is the percentile of X.
The normal distribution is symmetric which means that the middle 56% is between the 11th and 67th percentile. Looking at the z table the z scores are Z=±0.77.
Hence the z score that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution is ±0.77.
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What is the equilibrium pressure (in atm to three decimal places) of HBr for the following reaction if P(H2)i = P(Br2)i = 1.000 atm at 25 °C?
H2(g)+Br2(g)⇌2HBr(g)K=0.00550
the equilibrium pressure of HBr is 0.0744 atm (to three decimal places).
The equilibrium pressure of HBr can be calculated using the following expression:
K = \((P(HBr))^2 / (P(H2) x P(Br2))\)
Rearranging this expression, we get:
P(HBr) = \(\sqrt {(K x P(H2) x P(Br2))}\)
Substituting the given values, we get:
P(HBr) = \(\sqrt {(0.00550 x 1.000 atm x 1.000 atm)}\) = 0.0744 atm
Therefore, the equilibrium pressure of HBr is 0.0744 atm (to three decimal places).
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stephanies solves math equations at a constant rate of 2/3 equation per minute. which graph best represents y the total number of equations stephanie solved in x minutes
Answer:
F
Step-by-step explanation:
The slope is 2/3. That means you go up two units and right 3 units. The only graph that does tat is F.
The point A(-6, 8) is reflected over the point (-7, 6) and its image is point B. What are the coordinates of point B?
Answer: The answer is (-8, 4)
Step-by-step explanation:
Find the x-intercept of 2x - 3y = 6
HELPPPP indentify one characteristic of exponential decay
Answer:
A more intuitive characteristic of exponential decay for many people is the time required for the decaying quantity to fall to one half of its initial value. This time is called the half-life, and often denoted by the symbol t1/2. The half-life can be written in terms of the decay constant, or the mean lifetime.
Step-by-step explanation:
The ratios of Lycra to other materials in two stretch fabrics are 2:25 and 3:40. By changing each ratio to the form 1:n, say which fabric contains the greater proportion of Lycra
Answer:
Material one (2:25)
Step-by-step explanation:
Given that:
Lycra:Other material
2:25
3:40
Now, change it to the form of 1:n:
2:25 = 1:12.5
3:40 = 1:13.33
Now write proportions for each of them:
1:12.5 = 1/13.5
1:13.33 = 1/14.33
Now compare:
1/13.5 > 1/14.33
Hope this helps good luck
Quadrilateral KLMN is similar to quadrilateral WXYZ, Which statement about these quadrilaterals must be true?
Answer:angle nkl is congruent to angle zwx
Step-by-step explanation: it is equal so it matches
Answer:
angle nkl is congruent to angle zwx
Step-by-step explanation:
What function convolved with -2cos(t) would produce 6sint(t)?
The function that convolved with -2cos(t) would produce 6sin(t) is g(t) = -3 * e^(-jt)/(2π).
To determine the function that, when convolved with -2cos(t), would produce 6sin(t), we can use the convolution theorem. According to the convolution theorem, the Fourier transform of the convolution of two functions is equal to the product of their individual Fourier transforms.
Let's denote the function we are looking for as g(t). Taking the Fourier transform of g(t) yields G(ω), and taking the Fourier transform of -2cos(t) yields -2πδ(ω - 1), where δ(ω) is the Dirac delta function.
Using the convolution theorem, we have:
G(ω) * -2πδ(ω - 1) = 6πδ(ω + 1)
To solve for G(ω), we divide both sides of the equation by -2πδ(ω - 1):
G(ω) = -3δ(ω + 1)
Now, we take the inverse Fourier transform of G(ω) to obtain g(t):
g(t) = Inverse Fourier Transform[-3δ(ω + 1)]
The inverse Fourier transform of δ(ω + a) is given by e^(-jat)/(2π), so applying this to our equation:
g(t) = -3 * e^(-jt)/(2π)
Therefore, the function that convolved with -2cos(t) would produce 6sin(t) is g(t) = -3 * e^(-jt)/(2π).
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Im actually going to explode I hate geometry with a passion
Answer: B 28√15
Step-by-step explanation:
They want you to find the Area of the quadrilateral. But if you can find the area of 1 trangle then you can double it because the 2 triangles are congruent.
We know the 2 triangles are congruent from the theorem (see diagram
We also know that QR=TR=SR They are all radius
Let's solve for triangle PRS
PR = hypotenuse = 10+7 =17
SR=7 radius
Use pythagorean to find PS
c²=a²+b²
17²=7²+b²
289 = 49 + b²
b²=289 -49
b² = 240
b=√240
b=\(\sqrt{16*15}\)
b= 4√15 This is PS
Area of triangle = 1/2 bh b=PS h=7
Area of triangle = 1/2 (4√15)(7)
Area of triangle = (2√15)(7)
Area of triangle = 14√15
Area of quadrilateral = 2 (14√15) > 2 triangles make the quadrilateral
Area of quadrilateral = 28√15
I need help with this please I’ve been stuck on this question for a week now
Answer:
32 degrees
Step-by-step explanation:
Answer:
55!
Step-by-step explanation:
y= 100-45!
exterior angle in equal to sum of interior angles 100° = y +45°
Solve for 8x + 17 = 41 for x. Show your work.
The value οf x is 3
What is variable?A variety οf issues are resοlved by algebraic calculatiοns that treat variables like explicit integers in a single cοmputatiοn. The quadratic fοrmula, fοr instance, can be used tο sοlve any quadratic equatiοn by exchanging the variables in the quadratic fοrmula fοr the numerical values οf the cοefficients in the equatiοn.
A variable in mathematical lοgic is either a symbοl fοr an undefined term οf the theοry (a meta-variable), οr it is a fundamental οbject οf the theοry that is changed withοut cοnsidering any pοtential intuitive meaning.
Given
8x+17 = 41
Sοlving fοr variable 'x'
Add '-17' tο each side.
17 + -17 + 8x = 41 + -17
Or, 8x=24
Divide each side by '8'
Or, x=3
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if (-1,0) belong to the function f where f(x) =M X +2, then M=
Pls answer
Step-by-step explanation:
0= m(-1) +2
m=2
Hope it helps
Jack and Joan Mitchell, married taxpayers and residents of a separate property state, elect to file a joint return for Year 4 during which they received the following dividends:
Received byJackJoanAlert Corporation (a qualified, domestic corporation)$400$50Canadian Mines, Inc. (a Canadian company)300Eternal Life Mutual Insurance Company (dividends on life insurance policy)200
Total dividends received to date on the life insurance policy do not exceed cumulative premiums paid. For Year 4, what amount should the Mitchells report on their joint return as dividend income?
The Mitchells should report a total of $700 as dividend income on their joint return for Year 4.
Only the dividends received from Alert Corporation, a qualified domestic corporation, and Canadian Mines, Inc., a corporation incorporated in Canada, are taxable. The dividend from Eternal Life Mutual Insurance Company is not taxable since it is a dividend on a life insurance policy and the total dividends received on the policy do not exceed the cumulative premiums paid.
Therefore, the taxable dividends are $400 + $300 = $700.
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A car travels a distance of 230 miles in 4 hours and 15 minutes.
Work out the average speed of the car, in miles per hour.
Give your answer to 1 decimal place.
Answer:
the answer is 59.5375 ant there is all details there
The average speed of the car up to one decimal place will be 54.2 miles per hour.
What is an average speed?The distance covered by the particle or the body in an hour is called the average speed. It is a scalar quantity. It is the ratio of the total distance to the total time.
We know that the average speed formula is given as,
Average speed = Total distance / Total time
A car travels a distance of 230 miles in 4 hours and 15 minutes.
Convert the minutes into hours. Then we have
⇒ 4 + 15 / 60
⇒ 4 + 0.25
⇒ 4.25 hours
The average speed of the car, in miles per hour, will be given as,
Average speed = 230 / 4.25
Average speed = 54.2 miles per hour
The average speed of the car up to one decimal place will be 54.2 miles per hour.
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Write an inequality for the statement:
negative one half is a minimum of the product of a number and negative five sixths.
a. negative 5 over 6 is less than or equal to negative 1 over 2 times w
b. negative 5 over 6 is greater than or equal to negative 1 over 2 times w
c. negative 1 over 2 is greater than or equal to negative 5 over 6 times w
d. negative 1 over 2 is less than or equal to negative 5 over 6 times w
Negative 5 οver 6 is greater than οr equal tο negative 1 οver 2 times w- is the inequality fοr the statement.
What is inequality?The οccurrence οf an unfair and/οr unequal distributiοn οf οppοrtunities and resοurces amοng the peοple that make up a sοciety is referred tο as inequality. Tο different peοple and in variοus settings, the wοrd "inequality" may indicate different things.
The phrase "the prοduct οf a number and negative five sixths is higher than οr equal tο negative οne half" can alsο be used tο express this idea.
Let N stand in fοr the quantity. The assertiοn is therefοre untrue, as fοllοws:
N × (-5/6) ≥ -1/2
The prοnunciatiοn οf the sign ≥ is alsο knοwn as greater than οr equal tο.
Hence the cοrrect answer is b, negative 5 οver 6 is greater than οr equal tο negative 1 οver 2 times w.
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