Considering the definition of parallel line, the equation of the line d is y= 3x -7.
Linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin and represents the coordinate of the point where the line crosses the y axis.Parallel lineParallel lines are two lines that prolonged towards infinity never touch.
Two lines are parallel if they have the same slope and different y-intercepts.
Equation of parallel line in this caseIn this case, the line is y=3x-4
where:
The slope m is 3.The y-intercept is -4.Since two lines are parallel if they have the same slope, the parallel line has a slope of 3.
The line passes through the point (2, -1). Replacing in the expression for a line:
-1= 3× 2 + b
-1= 6 + b
-1 -6= b
- 7= b
Finally, the equation of parallel line is y= 3x -7.
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it is claimed that in a bushel of peaches more than ten percent are defective. a sample of 400 peaches is examined and 50 are found to be defective. what is the p-value? 0.0500 0.0250 0.0485 0.4525
The p-value is option (A) 0.0500
Under the null hypothesis, the expected number of defective peaches in the sample of 400 would be:
p = 0.10 (since the null hypothesis assumes a maximum of 10% defective peaches)
n = 400
expected number of defective peaches = np = 0.10 x 400 = 40
We can then use the binomial distribution to calculate the probability of getting 50 or more defective peaches in a sample of 400, assuming that the null hypothesis is true.
P(X ≥ 50) = 1 - P(X < 50)
where X is the number of defective peaches in the sample, assuming the null hypothesis is true.
Using a binomial calculator or a statistical software, we can find:
P(X < 50) = 0.3081
Therefore,
P(X ≥ 50) = 1 - P(X < 50) = 1 - 0.3081 = 0.6919
This is the p-value of the hypothesis test. Since this is a one-tailed test , we can compare the p-value to the significance level, α. If α = 0.05, then the p-value is greater than α, which means we fail to reject the null hypothesis.
Therefore, the correct answer is A. 0.0500.
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Solve for x and name the properties used: 3/4(x+2) = 6(x+12)
The value of x in the expression given is -94/7
What is an expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between
Given is an expression 3/4(x+2) = 6(x+12), we need to find the value of x,
3/4(x+2) = 6(x+12)
Multiply by 4 in the expression [multiplication property of equality]
3(x+2) = 24(x+12)
Divide by 3 in the expression [Division property of equality]
x+2 = 8(x+12)
Open brackets and multiply by 8 in the RHS of the expression [distributive property]
x+2 = 8x+96
Subtract x from both sides [subtraction property of equality]
x-x+2 = 8x-x+96
2 = 7x+96
Subtract 96 from both sides [subtraction property of equality]
2-96 = 7x+96-96
-94 = 7x
Divide by 7 in the expression [Division property of equality]
-94/7 = x
x = -94/7
Hence, the value of x in the expression given is -94/7
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which are the following statements is 6×7 = 42
Answer:
A and B are both correct
Step-by-step explanation:
the definitions of the following words are:
factor- a number or quantity that when multiplied with another produces a given number or expression.
multiple- a number that can be divided by another number without a remainder.
6 multiplied with 7 equals 42
42 divided by 7 equals 6
another way of phrasing it:
7 and 6 are factors of 42
and
42 is a multiple of both 7 and 6
hope this helped!
Answer:
42 is a multiple of 7.
6 is a factor of 42
Step-by-step explanation:
I need a helping hand please
Joseph compared the graphs of two functions.
The first function was f(x)=−2x+6.
The second function fits the values in the table:
x 2 5 8 11
y 2 -4 -10 -16
What is the distance between the y-intercepts of the two functions? To earn full credit, show your work using a method explained in the Orientation.
Answer:
There is no separation (distance) between the first y-intercept (6) and the second (6).
Step-by-step explanation:
We'll assume that the table shows points on a straight line.
If we go from x = 2 to x = 8 (an increase of 6), the corresponding y values go from y =2 to y = -10 (a decrease of 12). Thus, the slope of the line represented by the table is
m = rise / run = -12/6, or m = -2.
We need to find the equation of the line represented by the table, so that we can know the y-intercept. Start with y = mx + b and substitute -2 for m:
y = -2x + b. We arbitrarily choose an ordered pair from the table, such as (11, -16). Here we substitute 11 for x and -16 for y:
-16 = -2(11) + b, or
-16 = -22 + b, which yields b = 6.
This is the same y-intercept as the '6' in the given f(x) = -2x + 6. So: There is no separation (distance) between the first y-intercept (6) and the second (6).
Spongebob and Patrick are selling kelp fries to fundraise for new jellyfishing nets. They sold
small and large sizes. Spongebob sold 3 small fries and 14 large fries for a total of $203.
Patrick sold 11 small fries and 11 large fries for a total of $220. Find the cost of each size of
fries.
a
Answer:
So, cost of small size is $7 and cost of large size is $13.
Step-by-step explanation:
Let cost of each small size - x, cost of each large size - y
By the question,
3x + 14y = 203
11x + 11y = 220
From the first equation, we get,
3x + 14y = 203
or, 3x = 203 - 14y
so, x = (203 - 14y)/3
Substituting x's value in second equation :-
11x + 11y = 220
or, 11 { (203 - 14y)/3 } + 11y = 220
or, {2233 - 154y}/3 + 11y = 220
or, { 2233 -154y + 33y} = 660
or, 2233 - 121y = 660
or, 121y = 2233 - 660
or, 121y = 1573
so, y = 1573/121
so, y = 13
Now,
As we know,
x = (203 - 14y)/3
or, x = ( 203 - 14 × 13)/3
or, x = (203 - 182)/3
so, x = 21/3
so, x = 7
So, cost of small size is $7 and cost of large size is $13.
Evaluate the gradient of f(x, y, z) = log(x2 + y2 + z2) at (1, 0, 1)
The gradient of f(x, y, z) = log(x2 + y2 + z2) at (1, 0, 1) is (2/1, 0, 2/1)
This gradient is a vector that points in the direction of the greatest rate of increase of the function f(x, y, z) = log(x2 + y2 + z2). To evaluate this gradient, the partial derivatives of the function with respect to x, y, and z must be calculated.
The partial derivative of the function with respect to x is (2x / (x2 + y2 + z2)). When x is 1, this simplifies to 2/1. Similarly, the partial derivative with respect to y is 0, and the partial derivative with respect to z is (2z / (x2 + y2 + z2)), which simplifies to 2/1 when z is 1. Therefore, the gradient of f(x, y, z) = log(x2 + y2 + z2) at (1, 0, 1) is (2/1, 0, 2/1).
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As of 2016, New York City has a population of 8.55 million and a land area of 300 square miles. Manhattan is a section of New Your City that has a land area of 23 square miles and a population of 1.64 million. How much greater is the population density of Manhattan than that of New York City?
Answer: 42804 people per square mile
Step-by-step explanation:
As we know Population density = \(\dfrac{Number\ of\ people}{Area}\)
Given, population of New York City = 8.55 million
Area of New York City = 300 square miles
Then, population density of New York City = \(\dfrac{8.55\text{ million}}{300\text{ square miles}}\)
\(=\dfrac{8550000}{300\text{ square miles}}=28500\text{ people per square mile}\) [1 million = 1,000,000]
Population of Manhattan = 1.64 million = 1640000
Area of Manhattan = 23 square miles
population density of Manhattan = \(\dfrac{1640000}{23}\approx71304\text{ people per square mile}\)
Difference = 71304 - 28500 =42804
Hence, population density of Manhattan is 42804 people per square mile greater than that of New York City.
Answer: 42804
Step-by-step explanation: i took the test and got the answer right
Find the general solution of the given differential equation.
(x + 1) dy/dx + (x + 2)y = 2xe^-x
y=
The solution involves an integral that cannot be evaluated in closed form, so the answer cannot be simplified further.
How to solve the given differential equation (DE)?To solve the given differential equation (DE), we can use the integrating factor method. The steps are as follows:
1. Multiply both sides of the DE by the integrating factor, which is the exponential of the integral of the coefficient of y. In this case, the coefficient of y is (x + 2), so the integrating factor is e^(∫(x+2)dx) = e^(x^2/2 + 2x).
So, we have: (x + 1) e^(x^2/2 + 2x) dy/dx + (x + 2) e^(x^2/2 + 2x) y = 2x e^(x^2/2 + 2x) e^(-xy)
2. Notice that the left-hand side of the DE is the product of the derivative of y with respect to x and the integrating factor, so we can apply the product rule of differentiation to obtain:
d/dx [ e^(x^2/2 + 2x) y ] = 2x e^(x^2/2 + 2x) e^(-xy)
3. Integrate both sides of the previous equation with respect to x to obtain:
e^(x^2/2 + 2x) y = - e^(-xy) + C
where C is the constant of integration.
4. Solve for y by dividing both sides by the integrating factor:
y = [- e^(-xy) + C] e^(-x^2/2 - 2x)
This is the general solution of the given DE.
Note that the solution involves an integral that cannot be evaluated in closed form, so the answer cannot be simplified further.
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1. hydrogen + oxygen yields water
how much water could you get if you started with 250.0 grams of hydrogen?
how much water could you get if you started with 250.0 grams of oxygen?
To determine the amount of water produced, we need to know the stoichiometric ratio between hydrogen and oxygen in the reaction.
Without that information, we cannot calculate the exact amount of water produced from a given mass of either hydrogen or oxygen. The balanced chemical equation for the reaction between hydrogen and oxygen to form water is 2H₂ + O₂ → 2H₂O. This equation tells us that two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water. To calculate the amount of water produced from a given mass of hydrogen or oxygen, we need to consider their molar masses. The molar mass of hydrogen is approximately 2.02 g/mol, and the molar mass of oxygen is approximately 32.00 g/mol.
If we have 250.0 grams of hydrogen, we can convert the mass to moles using the molar mass: 250.0 g H₂ * (1 mol H₂ / 2.02 g H₂) = approximately 123.76 mol H₂. Since the stoichiometric ratio is 2:2, for every 2 moles of hydrogen, we get 2 moles of water. Therefore, the amount of water produced would be approximately 123.76 mol H₂ * (2 mol H₂O / 2 mol H₂) = 123.76 mol H₂O. To calculate the mass of water produced, we multiply the number of moles by the molar mass of water: 123.76 mol H₂O * (18.02 g H₂O / 1 mol H₂O) = approximately 2,229.95 grams of water.
Similarly, if we had 250.0 grams of oxygen, we can follow the same steps: 250.0 g O₂ * (1 mol O₂ / 32.00 g O₂) = approximately 7.81 mol O₂.According to the stoichiometric ratio, for every 1 mole of oxygen, we get 2 moles of water. Thus, the amount of water produced would be approximately 7.81 mol O₂ * (2 mol H₂O / 1 mol O₂) = 15.63 mol H₂O.Calculating the mass of water produced: 15.63 mol H₂O * (18.02 g H₂O / 1 mol H₂O) = approximately 281.37 grams of water. Therefore, starting with 250.0 grams of hydrogen would yield approximately 2,229.95 grams of water, while starting with 250.0 grams of oxygen would yield approximately 281.37 grams of water.
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A soccer game is m minutes long. The game includes 90 minutes plus x minutes of time-outs. Translate the words into an algebraic expression. How long is the game with 8 minutes of time-outs
The game with 8 minutes of time-outs is 98 minutes long.
What is an algebraic expression?
An algebraic expression is a mathematical phrase that can contain numbers, variables, and operations such as addition, subtraction, multiplication, and division.
In this case, the algebraic expression that represents the length of the soccer game would be:
m = 90 + x
where m represents the total length of the game in minutes, 90 represents the fixed length of the game, and x represents the variable length of time-outs in minutes.
To find the length of the game with 8 minutes of time-outs, we substitute x = 8 into the expression:
m = 90 + 8 = 98
Therefore, the game with 8 minutes of time-outs is 98 minutes long.
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You have $100,000 to invest in a portfolio containing stork a and stock b. Your goal is to create a portfolio that has an expected return of 13. 6%. If stock a has an expected return of 11. 4% and a beta of 1. 25, and stock b has an expected return of 8. 68% and a beta of. 85, what is the beta of your portfolio?.
The beta of the portfolio is 1.57352.
Let's say that Stock a weighs x and Stock b weighs y. (1 - x)
Portfolio Return = Weight of Stock a * Return of Stock a + Weight of Stock b* Return of Stock b
0.136 = x * 0.114 + (1 - x) * 0.0868
0.136 = x * 0.114 + 0.0868 - x * 0.0868
0.136= x * 0.0272 + 0.0868
0.0492 = x * 0.0272
x =1.8088
The weight of the stock a is 1.8088
The weight of the stock b is 1-1.8088= -0.8088
Amount Invested in Stock b = $100,000 * (-0.8088)
Amount Invested in Stock Y = -$-80880
Portfolio Beta = Weight of Stock X * Beta of Stock X + Weight of Stock Y * Beta of Stock Y
Portfolio Beta = 1.8088 * 1.25 + (-0.8088) * 0.85
Portfolio Beta = 1.57352
Therefore, the value of the beta of the portfolio is 1.57352.
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Jeremy randomly selected a round tile and a square tile from the sets shown below. what is the probability that jeremy selected either two blue tiles or two white tiles? square tiles: 10 pink, 8 red, 6 blue, 12 green, 8 black, 9 white, 7 yellow.round tiles: 11 green, 5 red, 2 white, 4 black, 6 blue, 8 pink. a. 23/36 b. 4/9 c. 7/72 d. 1/40
The probability that Jeremy randomly selected a round tile and a square tile from the sets is given as 1/40 (Option D).
What is probability?
Probability in mathematics is the branch of maths that speaks to the likelihood of an event occurring. Probability is usually given or described to occur between 0 and 1.
1 is the likelihood that the event will occur while zero is the certainty that an event will NOT occur.
Taken in decimal form, the likelihood of the above event occurring will very slim, because, 1/40 = 0.025
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The measure of major arc TBU is_degrees.
Answer:
46°
Step-by-step explanation:
The alternate segment theorem states that for a circle, the angle between a chord and a tangent through the endpoint of one of the chord is equal to the angle in the alternate segment.
Therefore from the diagram attached, chord TU and the tangent UV form an angle (arc TBU). The alternate segment to arc TBU is ∠ TUV .
Therefore arc TBU = ∠ TUV. But arc TBU = 46°. Therefore:
∠ TUV = 46°
Solve sqrt3 tan theta<-1 for 0
Answer:
\tan \left(θ\right)=\frac{\sqrt{3}}{3}
Step-by-step explanation:
Circle the polygon(s) which are similar to the shaded one:
Answer:
circle the second and forth one
Answer
Out of the 5 triangles, including the shaded one, the similar ones are the second (right next to the shaded) and 4th (to the left of the last one)
Step-by-step explanation:
Lucy bought 512 of a pound of candy. Greta bought 312 of a pound of candy. Which equation correctly represents the total weight of candy that Lucy and Greta bought?
Answer:
824 punds of candy
Step-by-step explanation:
512 + 312
Total means together and adding. You would add the 2 numbers and get our answer.
A leaking faucet was found in one of the labs in S\&E building. If a faucet is dripping at a rate of one drop per second and each drop contains 0.150 milliliters, calculate how much water (in liters) will be lost in one year.
A leaking faucet in the S&E building lab, dripping at a rate of one drop per second, will result in a water loss of approximately 4,725 liters in one year.
To calculate the amount of water lost in one year, we need to determine the number of drops per year and then convert it to liters. Since the faucet drips at a rate of one drop per second, there are 60 drops in a minute (60 seconds), which totals to 3,600 drops in an hour (60 minutes).
In a day, there would be 86,400 drops (24 hours * 3,600 drops). Considering a year of 365 days, the total number of drops would be approximately 31,536,000 drops (86,400 drops * 365 days). To convert the number of drops to liters, we need to multiply the total number of drops by the volume of each drop.
Given that each drop contains 0.150 milliliters, we convert it to liters by dividing by 1,000, resulting in 0.00015 liters per drop. Multiplying the total number of drops by the volume per drop, we find that the total water loss is approximately 4,725 liters (31,536,000 drops * 0.00015 liters/drop).
Therefore, in one year, the leaking faucet in the S&E building lab would result in a water loss of approximately 4,725 liters.
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Math problem and answers are in the picture
Answer: 1/3
Step-by-step explanation:
From the point (-1,0) you go to the right one square, and up 3 squares to get to the next point on the graph that the line goes through (0,3).
Find the length of EG.
question:
$1.59 for 12 shells
Answer:
about $0.13
Step-by-step explanation:
Answer:
13 cents
Step-by-step explanation:
1.59 divided by 12
Help please
I need to now asap
Answer:
x = 55.866 ft.
Step-by-step explanation:
39^2 + 40^2 = x^2
1521 + 1600 = 3121
sqrt(3121) = 55.8659
Rounded = 55.866
Make sure to add the ft.
Answer:
Step-by-step explanation:
a²+b²=c²
39²+40²=c²
3121=c²
c=√3121
c=55.866 to 3.d.p
Please help me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: A is (arithmetic sequence)
and D is 1 2 3 4 5 6 7
Unfortunately, I only know the answer to those two.
Sorry.
amy bill and cara each played a game . amy’s scored was ten times bill’s scored . cara’s down the ratio of amy’s scored to bill’s scored to cara’s score. give your answer in its simplest form
Answer:
10:1:5
Step-by-step explanation:
Given that,
A game was played by Amy, Bill, and Cara.
Let Amy's score be x. Then,
Bill's score would be x/10
Cara's score = x/2
Now,
The ratio of their scores;
x: x/10: x/2
= 1 : 1/10 : 1/2
To equalize the scores, multiply all of them by 10
= (1 * 10): (1/10 * 10) : (1/2 * 10)
= 10 : 1 : 5
Thus, the simplest ratio form would be 10:1:5
Answer:
Step-by-step explanation:
10:1:5
Write an equation for a rational function with the given characteristics calculator.
the equation for a rational function with the given characteristics calculator is y = -10 (x - 1)² / (x - 2)
Any function that can be expressed mathematically as a rational fraction—an algebraic fraction in which both the numerator and the denominator are polynomials—is referred to as a rational function. The polynomial coefficients don't have to be rational numbers; they can be taken in any field. K
Vertical asymptote at, x = 2
So, (x - 2) will be in the denominator
Double zero at x = 1
So, (x - 1)² will be in the numerator.
So, y = a (x - 1)² / (x - 2)
at x = 0, y = 5
So, 5 = a (-1)² / (-2)
Therefore, a = -10
So, y = -10 (x - 1)² / (x - 2)
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COMPLETE QUESTION:
Write an equation for a rational function with the given characteristics. Vertical asymptote at x = 2, double zero at x = 1, y-intercept at (0,5)
y =
Help me with this answer please
The point that is NOT 5 units away from the point (1,4) is (4,0).
Which of the following expressions is equal to 6^4
a. 6 + 6 + 6 + 6 or 24
b. 6 · 4 or 24
c. 4 or or 6 4 · 4 · 4 · 4 · 4 · 4 4, 096
d. 6 · 6 · 6 · 6 or 1, 296
if the area of a rectangle is represented by x^2 – 25, write the length and width of the rectangle as factors.
Answer:
it's a square with sides all equal to 5 units
Step-by-step explanation:
It takes Andrew 720720720 seconds to take a shower. He spends an additional 420420420 seconds eating breakfast. How many minutes does it take Andrew to take a shower and eat breakfast?
Answer: 19 minutes
Step-by-step explanation:
Here is the complete question:
takes Andrew 720 seconds to take a shower. He spends an additional 420 seconds eating breakfast.
How many minutes does it take Andrew to take a shower and eat breakfast?
From the question, we are told that Andrew spends 720 seconds to take a shower and also spends an additional 420 seconds eating breakfast. The total time spent by Andrew will be:
= 720 seconds + 420 seconds
= 1140 seconds
We will then convert 1140 seconds to minutes. We should note that 60 seconds = 1 minute. Therefore,
1140 seconds = 1140/60
= 19 minutes
Andrew uses 19 minutes to take a shower and eat breakfast.
Researcher Requires An Estimate For The Number Of Trout In A Lake. To This End, She Captures 50 Trout, Marks Each Fish, And Releases Them Into The Lake. Two Days Later She Returns To The Lake And Captures 80 Trout, Of Which 16 Are Marked. (A) Suppose That The Lake Contains N Trout. Find The Probability L(N) That 16 Trout Are Marked In A Sample Of 80. This problem has been solved!
Therefore, Assuming that approximately 20% of the lake's trout population was marked, we can estimate that the lake contains approximately 250 trout.
To find the probability L(N) that 16 trout are marked in a sample of 80, we need to use the hypergeometric distribution formula. The formula is P(X=k) = [C(M,k) * C(N-M,n-k)] / C(N,n), where M is the total number of trout in the lake, N is the number of trout in the sample (80), k is the number of marked trout in the sample (16), and n is the sample size (50). Plugging in the values, we get P(X=16) = [C(M,16) * C(M-50,34)] / C(M,80). We don't know the exact value of N, but we can estimate it using the fact that 16 out of 80 trout were marked, which means that approximately 20% of the lake's trout population was marked. Therefore, we can estimate that the lake contains approximately 250 trout (i.e., 50 / 0.2). Writing the main answer in 2 lines: The probability L(N) that 16 trout are marked in a sample of 80 can be estimated using the hypergeometric distribution formula.
Therefore, Assuming that approximately 20% of the lake's trout population was marked, we can estimate that the lake contains approximately 250 trout.
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Brian has reduced his cholesterol level by 8% after his last check up. If his original level was 260, what is his approximate cholesterol level now?