Answer:
5
Step-by-step explanation:
its 5 on Edge just took the test!
Answer:
It's 5
Step-by-step explanation:
Just like the person above me, I did it on edge...
x²-x-6
2
x+3x² - 2x - 3*
Find a reasonable estimate of the limit lim
According to the given information the limit of the given equation is 1.25 so the correct answer is option a.
What is the definition of a limit in mathematics?Limit, a closeness-based mathematical notion, is largely used to give values to some functions at locations where none are specified, in a manner that is compatible with neighbouring values.
What is meant by "limit of a function"?The value that a function assumes when its input approaches as well as approaches a particular number is really the function's limit. Limits determine continuity, integrals, as well as derivatives. The behaviour of the function at a certain place is always of relevance to the limit of the function.
\(\lim_{x \to 3} \frac{x^2-x-6}{x^2 - 2x - 3} \\\\ \lim_{x \to3} \frac{(x-3)(x+2)}{(x-3)(x+1)} \\\\ \lim_{x \to3} \frac{(x+2)}{(x+1)} \\\\$putting the value x=3$\\\\=\frac{3+2}{3+1} \\\\=\frac{5}{4} \\\\=1.25\)
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0.7 repeating a rational or irrational number
use double integrals to find the area inside the curve r = 3 + sin(θ).
The area inside the curve r = 3 + sin(θ) is (5π)/2 square units.
Double integration is an important tool in calculus that allow us to calculate the area of irregular shapes in the Cartesian coordinate system. In particular, they are useful when we are dealing with shapes that are defined in polar coordinates.
To find the area inside this curve, we can use a double integral in polar coordinates. The general form of a double integral over a region R in the xy-plane is given by:
∬R f(x,y) dA
where dA represents the infinitesimal area element, and f(x,y) is the function that we want to integrate over the region R.
In polar coordinates, we can express dA as r dr dθ, where r is the distance from the origin to a point in the region R, and θ is the angle that this point makes with the positive x-axis. Using this expression, we can write the double integral in polar coordinates as:
∬R f(x,y) dA = ∫θ₁θ₂ ∫r₁r₂ f(r,θ) r dr dθ
where r₁ and r₂ are the minimum and maximum values of r over the region R, and θ₁ and θ₂ are the minimum and maximum values of θ.
To find the area inside the curve r = 3 + sin(θ), we can set f(r,θ) = 1, since we are interested in calculating the area and not some other function. The limits of integration can be determined by finding the values of r and θ that define the region enclosed by the curve.
To do this, we first note that the curve r = 3 + sin(θ) represents a cardioid, which is a type of curve that is symmetric about the x-axis. Therefore, we only need to consider the region in the first quadrant, where 0 ≤ θ ≤ π/2.
To find the limits of integration for r, we note that the curve intersects the x-axis when r = 0. Therefore, the minimum value of r is 0. The maximum value of r can be found by setting θ = π/2 and solving for r:
r = 3 + sin(π/2) = 4
Therefore, the limits of integration for r are r₁ = 0 and r₂ = 4.
The limits of integration for θ are simply θ₁ = 0 and θ₂ = π/2, since we are only considering the region in the first quadrant.
Putting it all together, we have:
Area = ∬R 1 dA
= ∫\(0^{\pi /2}\) ∫0⁴ 1 r dr dθ
Evaluating this integral gives us:
Area = π(3² - 2²)/2 = (5π)/2
Therefore, the area inside the curve r = 3 + sin(θ) is (5π)/2 square units.
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Using double integrals, the area inside the curve r = 3 + sin(θ) is 0 units².
For the area inside the curve r = 3 + sin(θ), we can use a double integral in polar coordinates. The area can be expressed as:
A = ∬R r dr dθ
where R represents the region enclosed by the curve.
In this case, the curve r = 3 + sin(θ) represents a cardioid shape. To determine the limits of integration for r and θ, we need to find the bounds where the curve intersects.
To find the bounds for θ, we set the expression inside sin(θ) equal to zero:
3 + sin(θ) = 0
sin(θ) = -3
However, sin(θ) cannot be less than -1 or greater than 1. Therefore, there are no solutions for θ in this case.
Since there are no intersections, the region R is empty, and the area inside the curve r = 3 + sin(θ) is zero.
Hence, the area inside the curve r = 3 + sin(θ) is 0 units².
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The diagonals of a square are 4 meters long. The side of this square is equal to the diagonal of the second square. Find the side of the second square.
Answer:
bro what is the diagonal of second square.
\( \frac{7}{9} \times \frac{5}{6} \)
what is the answer to this?
Answer:
\(\frac{35}{54}\)
Step-by-step explanation:
When multiplying two fractions, you multiply across always. We have two fractions :
7/9 and 5/6
So multiply across :
\(\frac{7 * 5}{9 * 6}\)
\(\frac{35}{54}\)
Find the equation of a line perpendicular to y + 3 = 3x that passes through the
point (-3,9).
Answer:
y=-1/3x+8
Step-by-step explanation:
3x=y+3
y=3x-3
When it is perp find the reciprocal of the coefficient of x and flip the sign.
3x ---> -1/3x
y=-1/3x+b
Then plug in the (-3,9) to x and y
9=1+b
b=8
Substitute in the answers
y=-1/3x+8
One year, the population of a city was 117,000. Several years later it was 136,890. Find the percent increase.
The percent increase in population of the city is 17%.
A percentage in mathematics is a quantity or ratio that is stated as a fraction of 100 (from the Latin per centum, "by a hundred"). A percentage lacks dimensions and has no associated unit of measurement.
For instance, 45% (written as "forty-five percent") equates to the fraction \(\frac{45}{100}\) .
The percentage increase is calculated by the ratio of the increase to the original value. So to calculate the percent increase in the population of a city we have to find the ratio of the increase in population to the original population.
The population of the city is given as 117,000 .
The population increased to 136890.
Increase in population=136890-117000=19890
percentage increase in population
\(=\frac{19890}{117000} \times 100\%\)
= 0.17×100%
=17%
The percent increase in the population of the city is 17%.
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Which subset of real numbers does
belong to?
-17/20
The number -17/20 belongs to the set of real numbers.
What is the set of real numbers?
The set of real numbers is made by combining the set of rational numbers and the set of irrational numbers. Real numbers include natural numbers or counting numbers, whole numbers, integers, rational numbers (fractions and repeating or terminating decimals), and irrational numbers.
All real numbers, including fractions and decimals, are part of the set of real numbers.
The set of real numbers includes all numbers that can be expressed on the number line, including positive and negative numbers, as well as all fractions and decimals.
This set is often denoted by the symbol "ℝ".
Hence, The number -17/20 belongs to the set of real numbers.
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You have three coins in a box. One is fair. One is biased towards heads and lands heads with chance 80%. The third is biased towards tails and lands heads with chance 10%. You pick a coin from the box at random and flip it. Given that it lands heads, what is the chance the coin is fair?
The probability that the coin is fair given that it lands heads is 0.3571.
Given that a coin is picked from the box and flipped, the probability of the coin being fair is 1/3.
The probability of the coin being biased towards heads and the coin being biased towards tails is 1/3.
Therefore, the probability that the coin is fair and lands heads is (1/3) x 0.5
= 0.1667.
The probability that the coin is biased towards heads and lands heads is (1/3) x 0.8
= 0.2667.
The probability that the coin is biased towards tails and lands heads is (1/3) x 0.1
= 0.0333.
Therefore, the total probability that the coin lands heads is 0.1667 + 0.2667 + 0.0333
= 0.4667.
Using Bayes' Theorem, the probability of the coin being fair given that it lands heads is:
P(fair|heads)
= P(heads|fair) * P(fair) / P(heads)
= 0.5 * 1/3 / 0.4667
= 0.3571.
Thus, the probability that the coin is fair given that it lands heads is 0.3571.
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the first step in simple regression analysis usually is to group of answer choices build the model find the slope construct a scatter plot find the unexplained variation
The correct answer is: Construct a scatter plot.The first step in simple regression analysis is to construct a scatter plot.
A scatter plot is a graphical representation of the relationship between two variables, often referred to as the independent variable (X) and the dependent variable (Y).
The scatter plot allows us to visually examine the pattern of the data points and determine whether there is a linear relationship between the variables.
After constructing the scatter plot, we can analyze the pattern and determine if there is a linear trend.
If a linear trend is observed, we can then proceed with building the regression model, finding the slope (also known as the regression coefficient), and assessing the unexplained variation (also known as the residual variation).
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If the allele frequency of the dominant allele is 0.4, what value is used for the term p^2 in the equation p^2+ 2pq + q^2 = 1?
The value is used for the term p^2 in the equation p^2+ 2pq + q^2 = 1 is 0.16.
According to the statement
we have given that the allele frequency of the dominant allele is 0.4, and we have to find that the value of p^2 in the equation p^2+ 2pq + q^2 = 1.
So, For this purpose, we know that the
The allele frequency represents the incidence of a gene variant in a population. Alleles are variant forms of a gene that are located at the same position, or genetic locus, on a chromosome.
And here
allele frequency is the 0.4 and represent the value of P.
So, The value of p is 0.4 and the
Then p^2 = (0.4)^2
so, the value becomes
p^2 = (0.4)^2
p^2 = 0.16.
So, The value is used for the term p^2 in the equation p^2+ 2pq + q^2 = 1 is 0.16.
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So I was ordering me food that cost $16.13. And I have $15 and 4 quarters, 1 dime and 5 pennies. How can I make it work? Can I use the extra dollar with the 4 quarters so that I have $16?
Answer:
Technically, it already works because you have $16.15
Step-by-step explanation:
(1) Using the Black/Scholes Option Pricing Model, calculate the value of the call option given: S=74; X=70;T=6 months; σ2=.50 Rf=10% (2) What is the intrinsic value of the call? (3) What stock price is necessary to break-even? 4 If volatility were to decrease, the value of the call would (5 If the exercise price would increase, the value of the call would ? 6 If the time to maturity were 3-months, the value of the call would ? 77 If the stock price were $62, the value of the call would ? 8 What is the maximum value that a call can take? Why?
(1) Using the Black/Scholes Option Pricing Model, the value of the call option is $7.70.
(2) The intrinsic value of the call is the difference between the stock price and the strike price of the option. Therefore, it is $4.
(3) The stock price required to break-even is the sum of the strike price and the option premium. Therefore, it is $74.
(4) If volatility were to decrease, the value of the call would decrease.
(5) If the exercise price would increase, the value of the call would decrease.
(6) If the time to maturity were 3-months, the value of the call would decrease.
(7) If the stock price were $62, the value of the call would be zero.
(8) The maximum value that a call option can take is unlimited.
In the Black/Scholes option pricing model, the value of a call option can be calculated using the formula:
C = S*N(d1) - X*e^(-rT)*N(d2)
where S is the stock price, X is the exercise price, r is the risk-free rate, T is the time to maturity, and σ2 is the variance of the stock's return.
Using the given values, we can calculate d1 and d2:
d1 = [ln(S/X) + (r + σ2/2)T]/(σ2T^(1/2))
= [ln(74/70) + (0.10 + 0.50/2)*0.5]/(0.50*0.5^(1/2))
= 0.9827
d2 = d1 - σ2T^(1/2) = 0.7327
Using these values, we can calculate the value of the call option:
C = S*N(d1) - X*e^(-rT)*N(d2)
= 74*N(0.9827) - 70*e^(-0.10*0.5)*N(0.7327)
= $7.70
The intrinsic value of the call is the difference between the stock price and the strike price of the option. Therefore, it is $4.
The stock price required to break-even is the sum of the strike price and the option premium. Therefore, it is $74.If volatility were to decrease, the value of the call would decrease. This is because the option's value is directly proportional to the volatility of the stock.
If the exercise price would increase, the value of the call would decrease. This is because the option's value is inversely proportional to the exercise price of the option.
If the time to maturity were 3-months, the value of the call would decrease. This is because the option's value is inversely proportional to the time to maturity of the option.If the stock price were $62, the value of the call would be zero. This is because the intrinsic value of the call is zero when the stock price is less than the strike price.
The maximum value that a call option can take is unlimited. This is because the value of a call option is directly proportional to the stock price. As the stock price increases, the value of the call option also increases.
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the radius of the earth - the distance from surface to core - is 6,370 kilometers. the planet neptune is 24,620 kilometers. if a scale model of the earth is drawn with a radius of 2.5 centimeters, how large would a scale model of neptune have to be drawn? group of answer choices 9848 cm 9.7 cm 2548 cm 0.02548 cm 3.86 cm
We may build up a proportion and solve for the scale model radius of Neptune using the ratio between the radii of the two planets and the known scale model radius of the Earth. The scale model of Neptune that is produced has a radius of around 9.7 cm.
We may take advantage of the fact that the ratio between the two planets' radii and the ratio between their respective scale model radii is the same. Let's name the Neptune scale model radius "r" Then, we may set up the ratio shown below:
Neptune's radius is equal to the product of Earth's radius and its scale model.
With the provided values, we may simplify and obtain:
24620 km / 6370 km equals 2.5 cm / r
We obtain the following when solving for "r":
r = (24620 km * 2.5 cm) / (6370 km)
r ≈ 9.7 cm
Therefore, a scale model of Neptune would have to be drawn with a radius of approximately 9.7 cm.
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what is 574 ÷ 82 my math say use compatible numbers to round first then awnser the actual queston
Answer: 7 explanation:574\(%\)%82=7 7x82=574
Answer:
compatible answer= 7.5
Real answer: 7
Step-by-step explanation:
Evaluate -2(|2|-(-3)(-4))
In a systematic random sample of size n drawn from a population of size N, how many random numbers need to be generated to identify those subjects who are included in the sample
A systematic random sample is obtained by choosing a random starting point and then selecting every kth individual from a population to participate in the study. The number of random numbers that must be produced to recognize individuals who are part of the sample is determined by the following formula:n/k is the number of random numbers required to identify the sample population of size n drawn from a population of size N by systematic random sampling.
To provide an example, consider a population of size N= 1000 and a sample of size n= 50. Assume that we must use systematic random sampling with a k=20. The population should be numbered, and the first random number between 1 and 20 is selected. The kth person after the first random number is chosen. This process is repeated for the entire population, with every kth person included in the sample. The number of random numbers generated would be 1000/20= 50. Therefore, to obtain a sample of 50 individuals, we must generate 50 random numbers to recognize each individual who will be included in the sample.
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Select whether the relationship between each pair of quantities is proportional. A bike rental store charges $20 as a flat fee, plus $5 per hour.
The given relation can be written as:
y = $5*x + $20
Notice that we have a constant term, thus it is not a proportional relation.
Is the relationship proportional?A general proportional relationship can be written as:
y = k*x
Where k is a constant of proportionality.
The given case is:
" A bike rental store charges $20 as a flat fee, plus $5 per hour."
We know that there is a flat fee of $20 plus $5 per hour, so we can write the equation:
y = $5*x + $20
Notice that we have a constant term, thus, it is not a proportional relation.
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find the number equivalant to the ratio 25:6
Answer:
A ratio of 25 to 6 can be written as 25 to 6, 25:6, or 25/6. Furthermore, 25 and 6 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on. A ratio of 25 to 6 simply means that for every 25 of something, there are 6 of something else, with a total of 31
Step-by-step explanation:
done hope u like it !!
please help with this question and give detailed explanation!! thank you!!
Answer:
\(-\sqrt{2}\)Step-by-step explanation:
Make the following operations:
a² + b² = 6aba² + 2ab + b² = 8ab(a + b)² = 8aba + b = \(2\sqrt{2ab}\)and
a² + b² = 6aba² - 2ab + b² = 4ab(a - b)² = 4aba - b = \(-2\sqrt{ab}\), since a < bThe required value is:
\(\cfrac{a+b}{a-b} =\cfrac{2\sqrt{2ab} }{-2\sqrt{ab} } =-\sqrt{2}\)Answer:
\(\dfrac{a+b}{a-b}=-\sqrt{2}\)
Step-by-step explanation:
Given:
\(a^2+b^2=6ab\)
\(0 < a < b\)
Add 2ab to both sides of the given equation:
\(\implies a^2+b^2+2ab=6ab+2ab\)
\(\implies a^2+2ab+b^2=8ab\)
Factor the left side:
\(\implies (a+b)^2=8ab\)
Subtract 2ab from both sides of the given equation:
\(\implies a^2+b^2-2ab=6ab-2ab\)
\(\implies a^2-2ab+b^2=4ab\)
Factor the left side:
\(\implies (a-b)^2=4ab\)
Therefore:
\(\implies \dfrac{(a+b)^2}{(a-b)^2}=\dfrac{8ab}{4ab}\)
\(\implies \dfrac{(a+b)^2}{(a-b)^2}=2\)
\(\textsf{Apply exponent rule} \quad \dfrac{a^c}{b^c}=\left(\dfrac{a}{b}\right)^c:\)
\(\implies \left(\dfrac{a+b}{a-b}\right)^2=2\)
Square root both sides:
\(\implies \sqrt{\left(\dfrac{a+b}{a-b}\right)^2}=\sqrt{2}\)
\(\implies \dfrac{a+b}{a-b}=\pm\sqrt{2}\)
As 0 < a < b then:
a + b > 0a - b < 0Therefore:
\(\implies \dfrac{a+b}{a-b}=\dfrac{+}{-}=-\)
So:
\(\implies \dfrac{a+b}{a-b}=-\sqrt{2}\)
f(t) =
2(t-1)
(t-4) (t + 2)
What is the domain off (t)?
Answer:
{t element R : t!=-2 and t!=4}
(assuming a function from reals to reals)
Step-by-step explanation:
Help please? I just need an answer. A clear explanation earns brainliest. this is a repost since i posted the wrong photo last time.
Answer: x^2+2x-7/x-1
9 points
7. Chris earned $45 in 6 hours. Express as a unit rate. Unit Rate = 1; USE
division.(SHOW WORK)
Taryn bought all her school supplies on tax-free weekend and spent $180. If sales tax is normally 7. 5%, how much did Taryn save by shopping on tax-free weekend?
A $2. 40
B $13. 50
C $24. 00
D $135. 0
Taryn saved $13.50 by shopping on tax-free weekend, since she did not have to pay any sales tax on her $180 purchase.
to calculate how much taryn saved by shopping on tax-free weekend, we first need to calculate how much she would have paid in sales tax if she had bought her school supplies on a regular day.
if the sales tax is normally 7.5%, then the amount of sales tax taryn would have paid is:
0.075 x $180 = $13.50 the answer is (b) $13.50.
Taryn bought all her school supplies on tax-free weekend and spent $180. If sales tax is normally 7. 5%,
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the confidence interval for the slop of the regression line is (-0.684, 1.733). what can we conclude?
The confidence interval for the slope of the regression line (-0.684, 1.733) indicates that we cannot be 100% certain about the exact value of the slope of the regression line.
However, we can be confident that the true slope of the line falls within this range of values. This means that if we were to repeat the experiment or data collection multiple times, we would expect the slope to fall within this interval in the majority of cases. Additionally, we can infer that there is a positive relationship between the independent and dependent variables, since the upper bound of the confidence interval is positive. However, we cannot conclude whether this relationship is statistically significant or not without additional information, such as the p-value or alpha level. Overall, the confidence interval provides valuable information about the range of plausible values for the slope of the regression line.
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Factor the following polynomial completely 6x^2+12x+6 the correct answer is 6(x+1)^2 explain in full detail how this answer is achieved you must show every step to receive full credit
please
Answer: 6(x+1)^2
Step-by-step explanation:
1. Find the GCF. Because you know the equation is 6x^2+12x+6, you can see that the coefficients, 6 and 12, are all factors of 6. To make factoring easier, factor out 6 from all the coefficients, which leaves you with 6(x^2+2x+1)
2. Factor the equation in the parentheses. If you have learned your perfect squares, then you know that x^2+2x+1 is (x+1)^2 because x^2+2x+1 = (x+1)(x+1) (you can foil that out if you want to check). Once finished with this, it leaves you with 6(x+1)^2
A car originally costs $20,000. Its price went up by 20% and then by another $8,000. How much did the price go up as a percentage of the original price? O 50%O 55%O 60% O 65%
The percentage by which the price of the car went up from the original price is 60% (third option)
What is the percent increase?The first step is to determine the price of the car after the percentage increase. Percentage is the fraction of a number as a value out of 100. The sign that is used to represent percentage is %.
Price of the car after the percentage increase = (1 + percent increase/100) x original cost of the car
Price of the car after the percentage increase = (1 + 20/100) x 20,000
Price of the car after the percentage increase = (1 + 0.2) x 20,000
Price of the car after the percentage increase = 1.2 x 20,000 = $24,000
Price after the $8,000 increase = $24,000 + 8,000 = $32,000
Percentage of the original price = (32,000 / 20,000) - 1 = 0.60 = 60%
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5x - (y + 2z) X=6 Y=8 Z=3 NEED HELP ASAP PLS
Step-by-step explanation:
this is your answer see in pictures
HELP ME PLEASEEE!
help
NO BOTS
The cubic root of 1000 is of 10, as 10³ = 1000.
What is the cubic root of 1000?We have that 1000 is equivalent to 10³, as:
10³ = 10 x 10 x 10 = 100 x 10 = 1000.
Then the cubic root is found as follows:
\(\sqrt[3]{1000} = \sqrt[3]{10^3} = 10\)
Hence, the cubic root of 1000 is of 10, as 10³ = 1000.
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Answer:
³√1000 = 10
Step-by-step explanation:
Now we have to,
→ Evaluate ³√1000
Let's solve the problem,
→ ³√1000
→ 10
Checking the answer,
→ x³ = 10³
→ 10 × 10 × 10 = 1000
Hence, the answer is 10.
Please help me with this
Answer:
x = 23
Step-by-step explanation:
if line j is parallel to line k then
5x + 9 + 33 + x = 180 add like terms
6x + 42 = 180 subtract 42 from both sides
6x = 138 divide both sides by 6
x = 23