The complex fraction given, 2(1)/(2) milliliters every 10 minutes, represents the leak rate of water in Stewart's home heating system. The simplified fraction is 25 milliliters per minute, which indicates the change in the amount of water per minute .
The complex fraction, 2(1)/(2) milliliters every 10 minutes, represents the rate at which water is leaking from Stewart's home heating system. To find the change in the amount of water per minute, we need to simplify this fraction.
Converting the mixed number 2(1)/(2) to an improper fraction, we have (2*2 + 1)/(2) = 5/(2).
To determine the change in the amount of water per minute, we divide the numerator, 5 milliliters, by the denominator, 2 minutes, and obtain the simplified fraction of 5/2 milliliters per minute.
However, to express the result in a single unit, we further divide the numerator by 2 and the denominator by 2, resulting in 5/2 ÷ 2/2 = 5/4 milliliters per minute, which simplifies to 25/4 or 25 milliliters per minute.
Thus, the change in the amount of water in the system per minute is 25 milliliters.
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A unit of pressure called "feet of liquid substance- Y " (or ft−Y ) is equivalent to the pressure that will exist one ft below the surface of Y 's surface. If the conversion factor for this unit is 1 atm=41.5ft−Y,… - ... the density of the liquid substance Y is
The density of the liquid substance Y can be determined by using the conversion factor 1 atm = 41.5 ft⁻Y and the density of the liquid substance Y is approximately 19.68 ft⁻Y.
Conversion factor: 1 atm = 41.5 ft⁻Y
The "feet of liquid substance - Y" unit is defined as the pressure equivalent to the pressure that exists one foot below the surface of substance Y. In other words, if we go one foot below the surface of substance Y, the pressure will be equivalent to 1 ft⁻Y.
Since pressure is directly related to the density of a liquid, we can equate the pressure in units of atm to the pressure in units of ft⁻Y.
Therefore, we can say:
1 atm = 41.5 ft⁻Y
From this equation, we can conclude that the conversion factor for pressure between atm and ft⁻Y is 41.5.
we can calculate the conversion factor from "feet of liquid substance - Y" (ft⁻Y) to atm.
To convert from ft⁻Y to atm, we can use the inverse of the given conversion factor:
Conversion factor: 1 atm = 41.5 ft⁻Y
Taking the reciprocal of both sides:
1 / 1 atm = 1 / 41.5 ft⁻Y
Simplifying the equation:
1 atm⁻¹ = 0.024096 ft⁻Y⁻¹
Now, to find the density of the liquid substance Y in units of ft⁻Y, we can multiply the given density in g/cm³ by the conversion factor:
Density in ft⁻Y = 816.55 g/cm³ * 0.024096 ft⁻Y⁻¹
Calculating the density in ft⁻Y:
Density in ft⁻Y ≈ 19.68 ft⁻Y
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Find the H.C.F. of 567 and 255 using Euclid’s division lemma.
Step-by-step explanation:
To find the Highest Common Factor (H.C.F.) of 567 and 255 using Euclid's division lemma, we can follow these steps:
Step 1: Apply Euclid's division lemma:
Divide the larger number, 567, by the smaller number, 255, and find the remainder.
567 ÷ 255 = 2 remainder 57
Step 2: Apply Euclid's division lemma again:
Now, divide the previous divisor, 255, by the remainder, 57, and find the new remainder.
255 ÷ 57 = 4 remainder 27
Step 3: Repeat the process:
Next, divide the previous divisor, 57, by the remainder, 27, and find the new remainder.
57 ÷ 27 = 2 remainder 3
Step 4: Continue until we obtain a remainder of 0:
Now, divide the previous divisor, 27, by the remainder, 3, and find the new remainder.
27 ÷ 3 = 9 remainder 0
Since we have obtained a remainder of 0, the process ends here.
Step 5: The H.C.F. is the last non-zero remainder:
The H.C.F. of 567 and 255 is the last non-zero remainder obtained in the previous step, which is 3.
Therefore, the H.C.F. of 567 and 255 is 3.
A manufacturer of compact fluorescent light bulbs advertises that the distribution of the lifespans of these light bulbs is nearly normal with a mean of 9,000 hours and a standard deviation of 1,000 hours.
(a) What is the probability that a randomly chosen light bulb lasts more than 10,500 hours?
(b) Describe the distribution of the mean lifespan of 15 light bulbs.
(c) What is the probability that the mean lifespan of 15 randomly chosen light bulbs is more than 10,500 hours?
(d) Sketch the two distributions (population and sampling) on the same scale.
(e) Could you estimate the probabilities from parts (a) and (c) if the lifespans of light bulbs had a skewed distribution?
A manufacturer of compact fluorescent light bulbs advertises have a standard deviation of 1,000 hours so the values are:
A normal distribution with,
μ = 9000
σ = 1000
a) The standardized score is the value x decreased by the mean and then divided by the standard deviation.
x = 105000 - 9000 / 1000 ≈ 1.50
Determine the corresponding probability using the normal probability table in appendix,
P(X>10500) = P(Z>1.50) = 1 - P(Z<1.50)
= 1 - 0.9332 = 0.0668.
b) n = 15
The sampling distribution of the mean weight is approximately normal, because the population distribution is approximately normal.
The sampling distribution of the sample mean has mean μ and standard deviation σ/√n
μ = 1000/√15 = 258.19
c) The sampling distribution of the sample mean has mean μ and standard deviation σ/√n
The z-value is the sample mean decreased by the population mean, divided by the standard deviation:
z = x-u/σ/√n = 10500-9000/1000√15 = 5.81
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the president of a large company recommends that employees perform, on average, 24 hours of community service each year. the president believes that the mean number of hours of community service performed last year was different from the recommended 24 hours. to estimate the mean number of hours of community service performed last year, the president obtained data from a random sample of employees and used the data to construct the 95 percent confidence interval (20.37, 23.49). if all conditions for inference were met, does the interval provide convincing statistical evidence, at a level of significance of
If all conditions for inference were met, does the interval provide convincing statistical evidence, at a level of significance of 95%, that the mean number of hours of community service performed last year was indeed different from the recommended 24 hours.
To determine if the 95% confidence interval provides convincing statistical evidence at a level of significance that the mean number of hours of community service performed last year was different from the recommended 24 hours, we'll analyze the constructed interval (20.37, 23.49).
1. First, observe the given confidence interval: (20.37, 23.49)
2. Identify the recommended average of 24 hours by the president.
3. Check if the recommended average is within the confidence interval.
Since 24 hours is not within the interval (20.37, 23.49), it provides convincing statistical evidence, at a level of significance of 95%, that the mean number of hours of community service performed last year was indeed different from the recommended 24 hours.
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Using the symbolization key given, translate each English-language sentence into Modal Logic, and translate each Modal Logic sentence into natural language (English preferred). O = My pizza has onions on it S = My pizza has sausage on it C = My pizza has cheese on it P = My pizza is vegan 1. My pizza doesn't have onions, but, if it has cheese on it then, necessarily, it's not vegan. 2. If it's possible that my pizza is vegan, then it's not necessary that my pizza has cheese and onion. 3. Necessarily, if my pizza is vegan then it has neither cheese nor sausage. 4. If my pizza is necessarily vegan, then, necessarily it has neither cheese nor sausage. 5. My pizza has onions on it, and it doesn't have cheese on it. But it's possible that it has cheese on it. 6. DS V O(CAO) 7. (◊S → ◊-P) 8. POP
The symbolization of the given English sentences into Modal Logic and then translate it back into natural language.
1. My pizza does not have onions, but if it has cheese on it, then it necessarily cannot be vegan.
2. If it is possible for my pizza to be vegan, then it is not necessary for it to have cheese and onions.
3. It is necessarily true that if my pizza is vegan, then it has neither cheese nor sausage.
4. If my pizza is necessarily vegan, then it necessarily does not have cheese or sausage.
5. My pizza has onions on it and does not have cheese on it. However, it is possible that it has cheese on it.
The symbolization of the given English sentences into Modal Logic and then translate it back into natural language.
1. ¬O ∧ (C → □¬P)
Translation: My pizza doesn't have onions, and if it has cheese on it, then it is necessarily not vegan.
2. ◊P → ¬(□(C ∧ O))
Translation: If it's possible that my pizza is vegan, then it's not necessary that my pizza has both cheese and onions.
3. □(P → (¬C ∧ ¬S))
Translation: Necessarily, if my pizza is vegan, then it has neither cheese nor sausage.
4. □P → □(¬C ∧ ¬S)
Translation: If my pizza is necessarily vegan, then it necessarily has neither cheese nor sausage.
5. O ∧ ¬C ∧ ◊C
Translation: My pizza has onions on it, it doesn't have cheese on it, but it's possible that it has cheese on it.
6. DS V O(C∧O)
Translation: My pizza has sausage and onions, or it has cheese and onions.
7. (◊S → ◊¬P)
Translation: If it's possible that my pizza has sausage, then it's possible that it's not vegan.
8. POP
Translation: My pizza is vegan, and it's possible that my pizza is vegan.
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In a mayoral election, candidate A is facing two opposing candidates. In a preselected poll of 100 residents, 22 supported candidate B and 14 supported candidate C. Can we conclude that more than 60% of residents in the population supported candidate A? Conduct the test with a=0.05. Which of the following statements is (are) correct? This is a multiple-answer question. It may have more than one correct answers. i. The proportion of residents supported candidate A based on this sample is (100−22−14)/100=0.64. ii. The null hypothesis is p>0.6 and the alternative hypothesis is p=0.6. iii. The rejection region is (1.645, infinity). iv. The resulting statistic is z ∗= 0.64−0.6/rootover0.204/100=0.82. The p-value is P(z>0.82)=1−0.7939=0.2061. v. Since 0.2061>0.05, we reject the null hypothesis. We conclude that the population proportion is greater than 0.6.
The conclusion that more than 60% of residents in the population supported candidate A cannot be made based on the given information and analysis. The correct statements are i, ii, and iv.
In order to determine whether more than 60% of residents supported candidate A, a hypothesis test needs to be conducted. The null hypothesis (H0) assumes that the population proportion (p) is greater than 0.6, while the alternative hypothesis (Ha) assumes that p is equal to or less than 0.6.
Statement i is correct as it calculates the proportion of residents who supported candidate A based on the given sample, which is (100 - 22 - 14) / 100 = 0.64, or 64%.
Statement ii is correct in describing the null and alternative hypotheses. The null hypothesis assumes p > 0.6, while the alternative hypothesis assumes p ≤ 0.6.
Statement iii is incorrect. The rejection region for a hypothesis test with a significance level (α) of 0.05 should be based on the critical value of the z-statistic. For a one-tailed test (as implied by the alternative hypothesis), the critical value is approximately 1.645.
Statement iv is correct in calculating the z-statistic using the given sample proportion, the assumed population proportion, and the sample size. However, the calculated z-value is incorrect. The correct calculation is (0.64 - 0.6) / √(0.6 * 0.4 / 100) = 0.2357.
Statement v is incorrect. The p-value is the probability of obtaining a test statistic as extreme as the observed value, assuming the null hypothesis is true. In this case, the p-value is P(z > 0.2357) ≈ 0.4098, which is greater than the significance level of 0.05. Therefore, we fail to reject the null hypothesis. The correct conclusion is that there is insufficient evidence to conclude that more than 60% of residents support candidate A.
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I'm having trouble understanding how I can convert my division algorithm Y=X/(-2) into a multiplication algorithm.
To convert the division algorithm Y=X/(-2) into a multiplication algorithm, multiply both sides of the equation by -2 to get X = -2Y.
To convert the division algorithm Y=X/(-2) into a multiplication algorithm, we can manipulate the equation by multiplying both sides by -2. By doing so, we get -2Y = X. This equation represents the multiplication algorithm equivalent to the given division algorithm.
Multiplying both sides by -2 allows us to eliminate the division by -2 on the right side of the equation. The negative sign in front of the 2 is included to maintain the equality between the two sides of the equation. As a result, the equation X = -2Y represents the multiplication algorithm that is equivalent to the division algorithm Y = X/(-2). Now, instead of dividing by -2, we can multiply by -2 to achieve the same result.
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abc is a right triangle with ab=ac. bisector of <a meets bc at d. prove that bc = 2ad.
Answer:
Let ac=ab=5
With this, bc= 5√2
Step-by-step explanation:
So to find ad, Let ad be x
5√2=(2)(x)
(5√2/2)= x
This proves that bc=2ad
The probability of selecting a T or a P on the second draw, given that an F was selected on the first draw is
The probability of selecting a T or a P on the second draw, given that an F was selected on the first draw is 0.39.
What is probability?The probability of selecting a T or a P on the second draw, given that an F was selected on the first draw, can be calculated using conditional probability.
P(A|B) = P(A and B) / P(B)
P(A and B) = P(T or P on second draw and F on first draw) = P(T on second draw and F on first draw) + P(P on second draw and F on first draw)
= (3/9) x (4/10) + (2/9) x (4/10) = 14/90
To find P(B), we know that it is 0.4.
Therefore, the conditional probability of selecting a T or a P on the second draw, given that an F was selected on the first draw, is:
P(A|B) = P(A and B) / P(B) = (14/90) / 0.4 ≈ 0.39
So the probability of selecting a T or a P on the second draw, given that an F was selected on the first draw, is approximately 0.39.
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due now pls help!!!!!!!!!!!
Answer:
A and D
Step-by-step explanation:
so sorry im in school
x+y=4
-y. -y
x=4-y
4-y-y=2
4-2y=2
-4 -4
-2y= -2
/-2. /-2
y=1
x+1=4
-1 -1
x=3
so A and D is correct
How do you select non-adjacent cells in Excel?
Answer:
Step-by-step explanation:
Select one or more rows and columns
Or click on any cell in the row and then press Shift + Space. To select non-adjacent rows or columns, hold Ctrl and select the row or column numbers.
in testing a hypothesis from a random sample involving three or more means, the appropriate test would be a one-way anova. True or false?
37. MULTI-STEP Sadie is organizing her craft room. She has 142 spools of thread 61 balls of yam, and 35 bottles of
pain. She can buy thread racks that hold 60 spools of thread for $14.99) baskets that hold 20 balls of yarn for $15)
each, and a paint storage rack that hold 81 bottles of paint for $49.00
a. She currently has $32 saved. If she wants to have all of the necessary storage to organize her craft room in 2
months, how much money should she save every week in order to afford the supplies she needs?
Answer:
$15.25
Step-by-step explanation:
Given that
Sadie has 142 spools of thread,61 balls of yam and 35 bottles of paint.
Capacity and price of a rack = 60 spools of thread, $14.99
Capacity and price of a basket = 20 balls of yam, $15
Capacity and price of a paint storage rack = 81 bottles of pain, $49
Money already saved = $32
To find:
Money to be saved each week for having all the necessary storage in 2 months.
Solution:
It can be analyzed that to store 142 spools of thread,61 balls of yam and 35 bottles of paint and as per the storage capacity:
Number of racks required to store thread = \(\frac{142}{60} > 2 =3\)
Number of baskets required to store balls of yam = \(\frac{61}{20} > 3 =4\)
Number of paint racks required to store bottles of paint = \(\frac{35}{81} < 1 = 1\)
Total money required for the storage = \(3\times 14.99 +4\times 15+1\times 49=\$153.97\)
Money already saved = $32
More Money to be saved = $153.97 - $32 = $121.97
There are 8 weeks in 2 months, so money to be saved every week = \(\frac{121.97}{8}\approx \bold{\$15.25}\)
if marvin cannon completed 81 successful free throws put of 90 attempts what percent were unsuccessful
Total attempt = 90
Successful throws = 81
Unsuccessful = Total attempt - Successful
= 90 - 81
=> 9
To calculate the percentage of unsuccessful, we will use the formula:
\(undefined\)What’s the answer for 3(2x+5)+2x=7?
Answer:
x=5+1/2
Step-by-step explanation:
3(2x-5)-2x=7
We move all terms to the left:
3(2x-5)-2x-(7)=0
We add all the numbers together, and all the variables
-2x+3(2x-5)-7=0
We multiply parentheses
-2x+6x-15-7=0
We add all the numbers together, and all the variables
4x-22=0
We move all terms containing x to the left, all other terms to the right
4x=22
x=22/4
x=5+1/2
Step-by-step explanation:
3(2x-5)-2x=7
We move all terms to the left:
3(2x-5)-2x-(7)=0
We add all the numbers together, and all the variables
-2x+3(2x-5)-7=0
We multiply parentheses
-2x+6x-15-7=0
We add all the numbers together, and all the variables
4x-22=0
We move all terms containing x to the left, all other terms to the right
4x=22
x=22/4
x=5+1/2
The price of an item has been reduced by 20% The original price was 33$
Answer:
The price of the item is now $26.4
Step-by-step explanation:
Answer:
The price after the reduction is $26.40
Step-by-step explanation:
Good luck on the test!
A farmer uses 920 grams of grain to feed his 8 chickens. At this rate how many grams of grains does he use to feed 100 chickens
Answer: 11,500 grams
Step-by-step explanation: 920/8=115 115*100= 11,500
The sum of two consecutive integers is 91. Find the integers.
Answer:
Let the smaller integer be x and greater integer be (x+1)
x+(x+1)=91
2x+1=91
2x=91-1=90
x=90/2
x=45
Answer:
The integers are 45 and 46.
Step-by-step explanation:
Let the two consecutive integers be x and therefore the other will be x+1.
Given that the sum of the integers is 91.
So ATP,
x+(x+1) = 91Solving for first number i.e. x,
x+x+1 = 912x = 91-12x = 90x = 90/2x = 45Hence,the first number is 45.
\(\rule{225pt}{2pt}\)
Solving for second number,i.e. x+1:
It can easily be obtained by substituting the value of x we got.
x+145+146Hence,the second number is 46.
\(\rule{225pt}2pt\)
A motor vehicle drives at an everage speed of 106km/h for 2hours 45minutes.At which constant must the car drive to travel at the same distance in 2hours 35 minutes
The constant that the car must drive is 112.84 km/hr.
What is the constant the car must drive?
Average speed measures how fast an object is moving with respect to time. Average speed is the ratio of total distance to total time.
Average speed = distance / time
Distance = speed x time
Distance travelled = 2 h 45 minutes x 106
= 2.75 x 106 = 291.5 km
Speed that must be travelled in 2 hour 35 minutes = 291. 5 / 2h 35m
291.5 / 2.583 = 112.84 km/hr
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Last year, the results of a survey at one college suggested that 28% of students smoked regularly. This year, after an intensive college-wide anti-smoking campaign, a researcher wishes to investigate whether the proportion of smokers has changed. Let p represent the proportion of students who smoke regularly today. State hypotheses for a significant test, letting the alternative hypothesis reflect the possibility that the proportion of students who smoke today is different from the proportion last year.
The hypotheses can be written as:
H0: p = 0.28
Ha: p ≠ 0.28
The null hypothesis (H0) is that the proportion of students who smoke regularly today (p) is equal to the proportion of students who smoked regularly last year (0.28). The alternative hypothesis (Ha) is that the proportion of students who smoke regularly today is different from 0.28.
This is a two-tailed test, as we are looking for a difference in either direction from the proportion found last year. A significance level (α) should be chosen in advance to determine the level of risk that we are willing to accept of rejecting the null hypothesis when it is actually true. Typically, a significance level of 0.05 is used, which means that we are willing to accept a 5% chance of making a type I error (rejecting the null hypothesis when it is actually true).
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3m-(m + 5) when m = 11 help
Answer:
17
Step-by-step explanation:
3m-(m + 5)
Distribute the minus sign
3m -m -5
Combine like terms
2m -5
Let m =11
2*11 -5
22-5
17
Answer:
\(17\)
Step-by-step explanation:
\(3m-(m + 5)\)
\(m= 11\)
Plug m as 11 in the expression.
\(3(11)-(11+5)\)
Evaluate.
\(33-16\)
\(=17\)
Complete the system of equations with a linear equation so that the graphs of the equations intersect at their x- and y-intercepts.
y=x^3+4x+3x+12
y=?
The required system of equation is given as y = 3x + 12 and y=x³+4x²+3x+12.
What is the equation?The equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.
Given equation,
y=x³+4x²+3x+12
To determine the x-intercept put equation y = 0
0 = x³+4x²+3x+12
Factorize the above equation
0=(x²+3)(x+4)
One of the factors from above is given as
x+4=0
x = -4
The x-intercept is (-4,0)
For the y-intercepts, x=0 and solve.
y = 12
y = 12
The y-intercept is (0,12)
Now equation of the line passing these points is given as.
m = (y₂ - y₁) / (x₂ - x₁)
m = 12/3
m = 3
C, we already have C=12
So the equation of the line is
y = mx + c
y=3x+12
Thus, the required system of equation is given as y = 3x + 12 and y=x³+4x²+3x+12.
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Find the measure of the angle indicated
Answer:
60° and 67°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
(49)
17x + 8 is an exterior angle of the triangle, thus
17x + 8 = 50 + 10x ( subtract 10x from both sides )
7x + 8 = 50 ( subtract 8 from both sides )
7x = 42 ( divide both sides by 7 )
x = 6
Thus
∠ C = 10x = 10(6) = 60°
(50)
99° is an exterior angle of the triangle, thus
2x + 10 + 6x + 1 = 99 , that is
8x + 11 = 99 ( subtract 11 from both sides )
8x = 88 ( divide both sides by 8 )
x = 11
Thus
∠ T = 6x + 1 = 6(11) + 1 = 66 + 1 = 67°
Let and P be square matrices with invertible. Show that det (PAP-1) det A
Rewrite det (PAP - 1) as an expression containing det Choose the correct answer below
a. det (PAP-1) = [(det PYdet A)(det P-1)]-1
b. det t(PAP -1)= det P+ det A det P-1
c. det (PAP -1) = (det PI(det AJ(det P - )
d. det (PAP-1) = (det P +det A+det P -1) -
The expression det P - can be rewritten in terms of det P Rewrite det P - in terms of det P
det P - (det P)
Using the Commutative Property and the equation in the previous step; the expression from the first step can be rewritten as ((det PI(det P) (det A)
This new expression simplifies to det because (det P)det P) Thus det (PAP - 1 ) = det A
Answer: c. det(PAP^-1) = det(A)
To show that det(PAP-1) = det(P)det(A)det(P^-1), we can use the following properties of determinants:
1. det(AB) = det(A)det(B) for any matrices A and B
2. det(A^-1) = 1/det(A) for any invertible matrix A
Starting with det(PAP^-1), we can apply property 1 to get:
det(PAP^-1) = det(P)det(A)det(P^-1)
Then, we can use property 2 to rewrite det(P^-1) as:
det(PAP^-1) = det(P)det(A)(1/det(P))
Simplifying this expression gives:
det(PAP^-1) = det(A)
Therefore, det(PAP^-1) = det(P)det(A)det(P^-1) is equivalent to det(PAP^-1) = det(A).
So, the correct answer is:
c. det(PAP^-1) = det(A)
What is the value of 24 + x ÷ 12 when x = −180?
Answer:
9
Step-by-step explanation:
1. Just input the x value with -180:
24 (+) -180 / 12 = answer
2. Follow PEMDAS to solve, which in this case division comes before addition:
24 + (-180 / 12)
24 + (-15)
3. Addition
24 + (-15) or 24 - 15
= 9
Therefore, 24 (+) -180 / 12 equals 9.
I would like to know the answer
Answer:
What may I answer for you? Put iedit if you just forgot to add it?
Step-by-step explanation:
What lines would you use to solve
–3x – 2 = 2x + 8?
Graph the line
for the left side of the equation.
Graph the line
for the right side of the equation.
Linear-Linear Equation
The lines to use to solve the equation are y = –3x – 2 and y = 2x + 8
The graph of the line is attached
How to determine the lines to use to solve the equationFrom the question, we have the following parameters that can be used in our computation:
–3x – 2 = 2x + 8
The above equation can be splitted by introducing the variable y
using the above as a guide, we have the following:
y = –3x – 2
y = 2x + 8
This means that the lines to use to solve the equation are y = –3x – 2 and y = 2x + 8
The graph of the line is added as an attachment
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If 81 visit a store and five nineths of them buy gardening tools how many bought gardening tools
Answer: 45
Step-by-step explanation:
We can label 5/9 of 81 as Numerator/Denominator of a whole number.
To solve the problem, we multiply the Numerator by the whole number and leave the Denominator as is:
(5 x 81) / 9 = 405/9 = 45
Therefore, the answer to 5/9 of 81 in its lowest form is:
You invest ten thousand dollars in an account that pays eight percent APR compounded monthly. After how many years will the account have twenty thousand dollars.
As a result, it will take roughly 10.24 years for the account to reach $20,000 in value.
what is percentage ?As a quarter of 100, a number can be expressed as a percentage. It is frequently used to describe distinctions or express changes in numbers. The symbol for percentages is %, and they are frequently utilized to describe ratios, rates, and certain other numerical connections. An 80 percent score on a test, for instance, indicates that the student correctly answered 80 of the 100 questions. Similar to this, if a retailer were offering a 20% discount on a $100 item, the sale price would be $80.
given
With P = 10000, r = 0.08 (8% stated as a decimal), n = 12 (compound monthly), and t to be found when A = 20000, the situation is as follows.
When these values are added to the formula, we obtain:
\(20000 = 10000(1 + 0.08/12)^(12t) (12t)\)
By multiplying both sides by 1000, we obtain:
\(2 = (1 + 0.08/12)^(12t) (12t)\)
When we take the natural logarithm of both sides, we obtain:
ln(2) = 12t ln(1 + 0.08/12)
When we multiply both sides by 12 ln(1 + 0.08/12), we obtain:
t = ln(2) / (12 ln(1 + 0.08/12))
Calculating the answer, we discover:
10.24 years is t.
As a result, it will take roughly 10.24 years for the account to reach $20,000 in value.
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6 cm
6 cm
6 cm
20 cm
The area of one of the bases of the figure shown above is about 15.6 cm².
What is the surface area, in cm2, of the figure? Round your answer to the
nearest tenth.
The surface area of the figure for the given condition is 391.2 cm²
What is a Triangular Prism?The pentahedron Triangular Prism contains nine different nets. The bases' vertices and edges are connected by means of their three rectangular sides. The rectangular sides of the triangular prism are joined to one another side by side.
Given the triangular prism,
which consist of two triangles and 3 rectangles,
the surface area of the figure is the sum of the area of triangles and 3 rectangles,
given sides of triangle is 6cm x 6cm x 6cm
area of equilateral triangle = √3/4(a²)
area of equilateral triangle = 6²*(√3/4)
area of equilateral triangle = 15.6 cm²
and dimensions of the rectangle is 6cm x 20 cm
area of rectangle = l x b
area of rectangle = 6*20
area of rectangle = 120 cm²
area of shape = 2(area of triangle) + 3(area of rectangle)
area of shape = 2*15.6 + 3*120
area of shape = 31.2 + 360
area of shape = 391.2 cm²
Hence the area is 391.2 cm².
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