The parametric equation of the line that passes through the points (5,2,7) and (8,–6,1) is \(\vec r= < 5,2,7 > +\lambda < 3,-8,-6 >\)
Also, the point (17,–30,31) does not lie on the line.
for given question,
We need to find the parametric equation of the line that passes through the points (5,2,7) and (8,–6,1)
Let \(\vec r_0= < 5,2,7 >\)
and
\(\vec v= < 8-5,-6-2,1-7 > \\\\\vec v= < 3,-8,-6 >\)
where vector v is the direction vector.
So, the equation of the line would be,
\(\vec r=\vec r_0+\lambda \vec v\\\\\vec r= < 5,2,7 > +\lambda < 3,-8,-6 >\)
Now we need to determine whether the point (17, -30, 31) is on the line.
Let \(< 17,-30,31 > = < 5,2,7 > +\lambda < 3,-8,-6 >\)
For first component,
⇒ 17 = 5 + 3λ
⇒ 3λ = 12
⇒ λ = 4
For the second component,
⇒ -30 = 2 - 8λ
⇒ -8λ = -32
⇒ λ = 4
For third component,
⇒ 31 = 7 - 6λ
⇒ -6λ = 24
⇒ λ = -4
since the values of the λ are not consistent, the point (17,–30,31) does not lie on the line.
Therefore, the parametric equation of the line that passes through the points (5,2,7) and (8,–6,1) is \(\vec r= < 5,2,7 > +\lambda < 3,-8,-6 >\)
Also, the point (17,–30,31) does not lie on the line.
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help me please thank you
Answer: exponential
Step-by-step explanation:
its exponential
count the squares in each one
first is 2 squares
second is 4 squares
third is 8 squares
this is going up exponentially because the first one would be 2^1 the second would be 2^2 and the third would be 2^3
(20points) phone camera took the pictures in the aspect ratio of 3:2. Luckily, Naomi can enlarge, shrink or rotate the pictures, but she doesn't want to have to crop the pictures at all or leave any extra space on the sides.
Which print sizes will she be able to order without leaving any extra space or having to cut off any extra material?
Which print sizes will she be able to order without leaving any extra space or having to cut off any extra material?
2x3
4x4
4x5.3
4x6
5x7
D 8x8
8x10
11x14
16x20
20x30
24x36
The blue dot is at what value on the number line? 7 and 9'
the are of rectangle=x2+3x-10
(1-cosx)(1+1/cosx)= sinx tanx
Answer:
Step-by-step explanation:
\((1 - Cos \ x)*(1+\dfrac{1}{Cos \ x})=(1- Cos \ x)* \left(\dfrac{Cos \x }{Cos \ x}+\dfrac{1}{Cos \ x} \right)\)
\(= (1-Cos \ x)*\left(\dfrac{Cos \ x + 1}{Cos x}\right)\\\\=\dfrac{(1-Cos \ x)(1+Cos \ x)}{Cos \ x}=\dfrac{1^{2}-Cos^{2} \ x}{Cos \ x}\\\\=\dfrac{1 -Cos^{2} \ x}{Cos \ x}\\\\=\dfrac{Sin^{2} \ x}{Cos \ x}\\\\=Sin \ x * \dfrac{ Sin \ x}{Cos \ x}\\\\\)
= Sin x * Tan x
Hence proved
Bethany thinks of a number 6/13 of her number is 48 what is 1/13
The number that Bethany thinks of is 104, and 1/13 of that number is 8.
Word problemsWord problems in mathematics involve arithmetic operations and the use of variables to solve those problems. Word problems are problems we encounter in our daily life and with the use of correct mathematical interpretation, we can provide accurate solutions to them.
Let the number that Bethany thinks of be (x) for example. So, 6/13 of x is equal to 48.
i.e.
(6/13) * (x) = 48
By dividing both sides with (6/13), we have:
x = 48 ÷ (6/13)
x = 48 × (13/6)
x = 8 × 13
x = 104
Thus, 6/13 of the number that Bethany thinks of that gives us 48 is 104. Now, to find 1/13 of 104, we have:
1/13 × 104
= 8
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If a club consists of 7 members, how many different ways are there for the club to fill the positions of president, vice-president, and secretary
There are 210 different ways for the club to fill the positions of president, vice-president, and secretary if the club consists of 7 members.
To calculate the different ways for the club to fill the positions of president, vice-president, and secretary if the club consists of 7 members, we need to use the permutation formula.
The permutation formula helps in counting the number of ways an event can occur.
Here, we need to select 3 members out of 7 members and arrange them for the 3 positions of the club.
Hence, we can use the permutation formula as:
P(7,3) = 7! / (7 - 3)! = 7! / 4! = 7 x 6 x 5 = 210
Therefore, there are 210 different ways for the club to fill the positions of president, vice-president, and secretary if the club consists of 7 members.Hope this helps!
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What is the sum?
Thank you!
Answer:
50 is the sum
Step-by-step explanation:
-10+20=10
10+-40=-30
-30+80=50
Tara is making a necklace and decorating it with hand-painted designs and various beads. The necklace has four (4) sections that are 2 1/4 inches long and two (2) sections that are 5 1/2 inches long. What is the total length of the necklace?
A seagull flew east at a constant velocity for a total of 20 seconds. It flew 45 meters in one-
quarter of that time. What was its velocity?
Answer:
540 meters per minute, or 9 meters per second
Step-by-step explanation:
a basketball player makes 80% of her free throws. what is the standard deviation of the successes from 100 free throws?
Since 80 out of 100 free throws were successful, the standard deviation of the success rate would be 8, and the standard deviation of a binomial distribution is the square root of (p*q)/n, where p is the probability of success, q is the probability of failure (1-p), and n is the total number of trials.
Standard deviation is calculated as follows:
p*q/n = 0.8*0.2/100 = 0.0016 = 0.04 = 8
Since 80% of 100 equals 80 successful free throws, the standard deviation of the successes from 100 free throws would be 8. The dispersion in a set of data is measured by standard deviation. A binomial distribution's standard deviation is equal to the square root of (p*q)/n, where p is the success probability, q is the failure probability (1-p), and n is the number of trials. Since the success rate in this instance is 80%, p = 0.8, q = 0.2, and n = 100. The standard deviation is then equal to the square root of (p*q/n): (0.8*0.2/100) = (0.0016) = (0.04), which equals 8. Therefore, the standard deviation of the successes from 100 free throws for a basketball player who makes 80% of them would be 8.
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I don’t understand this subject at all if you wold answer that would be a big help
Answer:
d= 8.6 ft
Step-by-step explanation:
In similar triangles, the corresponding sides are in proportion.
\(\boxed{\dfrac{AW}{MZ}=\dfrac{AJ}{MJ}=\dfrac{WJ}{ZJ}}\)
To find the value of x,
\(\dfrac{AJ}{MJ}=\dfrac{WJ}{ZJ}\\\\\\\dfrac{6}{7}=\dfrac{d}{10}\\\\\\\dfrac{6}{7}*10=d\)
d = 8.6 ft
Write your own word problem that can be translated into the equation x + 4 = 10. What does the variable x represent in your problem?
The required problem can be stated as the sum of a number and 4 is 10.
What is the equation?the equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.
here,
To write a word a problem can be translated into the equation x + 4 = 10. So, the problem can be given as " the required problem can be stated as the sum of a number, and 4 is 10."
Thus, the required problem can be stated as the sum of a number, and 4 is 10.
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Determine whether the graphs of each pair of equations are parallel, perpendicular, or neither.
Answer:
The graphs are parallel
Step-by-step explanation:
Equation one and equation two has the same gradient therefore their graphs are parallel
In a survey of a school, it was found that 30% of student failed in Nepali, 27% student failed in English and 15% student failed in both. (a) What percentage of student passed in both subjects? (b) Represent the above information in Venn- diagram.
(a)
Let X be the percentage of students who passed in both Nepali and English. Then the percentage of students who failed in at least one of the subjects would be:
Percentage of students who failed in Nepali = 30%
Percentage of students who failed in English = 27%
Percentage of students who failed in both subjects = 15%
Therefore, the percentage of students who failed in at least one of the subjects would be:
30% + 27% - 15% = 42%
This means that the percentage of students who passed in both subjects would be:
100% - 42% = 58%
Therefore, 58% of students passed in both Nepali and English.
____________
/ \
/ \
/ NE \
/ \
/____________________\
EN
NE: Nepali
EN: English
The left circle represents Nepali, the right circle represents English, and the overlap represents students who failed in both subjects. The percentage values can be added to each section of the Venn diagram to make it clearer.
pls answer this question for the 5-star rating
Answer:
B(3,3)
Step-by-step explanation:
Midpoint = (2,5)
A = (x₁,y₁) = (1,7)
M(x,y) = \((\frac{x1+x2}{2} , \frac{y1+y2}{2})\)
M(2,5) = \((\frac{1+x2}{2} , \frac{7+y2}{2} )\)
Writing the equations separately for convenience
1) \(\frac{1+x2}{2} = 2\)
=> 1+x2 = 4
=> x₂ = 3
2) \(\frac{7+y2}{2} =5\)
=> 7+y2 = 10
=> y₂ = 3
So, the coordinate is,
B = (x₂,y₂) = (3,3)
Answer:
(3,3)
please see the attached picture for full solution
hope it helps..
Good luck on your assignment
10. Two planes are flying one directly behind the other. Both planes are at an alttude of 1.7 miles. The angle
of depression to the airport from the plane closer to the airport is 58. The angle of depression to the
airport from the plane farther from the airport is 37. What is the distance between the two planes to the
nearest tenth of a mile?
A 1.0
B 23 -
C 12
D Not here
does anyone know this
Answer:
Answer below
Step-by-step explanation:
The coordinates of vertex in triangle 1 - A = 4, 2 B= 6, 8 C= 8, 4
The coordinates of vertex in triangle 2- A= -4, 2 B= -6, 8 C= -8, 4
To do this you write the coordinates of the vertex ( corners of the the triangle )
HOPE IT HELPED
Answer:
Shape #1:
A (4,2)
B (6,8)
C (8,5)
Shape #2:
A' (-4, 2)
B' (-6, 8)
C' (-8, 5)
Hope this helps :)
A fair, six-sided dice is thrown twice.
What is the probability that a 1 is thrown on both occasions?
Answer. 1/36
Step-by-step explanation:
1/6 chance 6 sides 6^2 cause gotta hit 1 twice so 6 Squared is 36 so 1 in 36 chance
At a certain zoo, the average mass of one cow is measured to be 410 kilograms. Usescientific notation to express the mass of 150 cows.
Step 1:
Given data
The average mass of a cow = 410 kg
Step 2:
To find the mass of 150 cows, you will multiply 150 cows by 410 kg.
Therefore
\(\begin{gathered} \text{Total mass of 150 cows = 150 }\times\text{ 410 } \\ \text{ = 61500 kg} \end{gathered}\)Final answer
Write the total weight in scientific notation
\(=\text{ 6.15 }\times10^4\text{ kg}\)for the x-values 1,2,3 and so on, the y values of a function form an arithmetic sequence that decreases in value what type of function is it
A. Decreasing linear
B. Exponential growth
C. Increasing linear
D. Exponential decay
The type of function that fits the given description is D. Exponential decay.
In an arithmetic sequence, the difference between consecutive terms remains constant. If the y-values of a function form an arithmetic sequence that decreases in value, it means that the difference between consecutive terms is negative.
Exponential decay functions exhibit a constant ratio between consecutive terms, resulting in a decreasing sequence. As the x-values increase, the y-values decrease at a consistent rate. This is represented by the formula y = ab^x, where b is a constant between 0 and 1.
In contrast, linear functions have a constant difference between consecutive terms, resulting in an arithmetic sequence. However, since the y-values are decreasing, the function cannot be linear.
Exponential growth functions, on the other hand, have a constant ratio between consecutive terms, but they result in an increasing sequence. The y-values of an exponential growth function increase as the x-values increase.
Therefore, based on the given information, the most appropriate type of function is D. Exponential decay.
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what function creates a scatterplot and then adds a small amount of random noise to each point in the plot to make the points easier to find?
The geom_jitter() function is the function creates a scatterplot and then adds a small amount of random noise to each point in the plot to make the points easier to find
Given that,
In order to make the points in the plot easier to find, function first creates a scatterplot and then adds a small amount of random noise to each point in the plot.
Generally, To make the points in the scatterplot easier to find, the geom jitter() method first builds a scatterplot and then adds a little amount of random noise to each point in the plot.
What is the purpose of the Geom jitter () function? Description. The geom point (position = "jitter") shortcut is the jitter geom. It is a practical method of managing overplotting brought on by discreteness in smaller datasets by adding a little degree of random variation to the location of each point.
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The geom_jitter() function is a funcreates a scatterplot and then adds a small amount of random noise to each point in the plot to make the points easier
Given that,
Function first makes a scatterplot, then adds a small amount of random noise to each point in the plot to make the points in the field easier to find.
The geom jitter() method often produces a scatterplot first, then adds a small amount of random noise to each point in the plot to make the points in the field easier to find.
What does the Geom jitter () function do? The jitter geom is the shortcut geom point with a position equal to "jitter". It is a helpful technique for controlling overplotting caused by discreteness in smaller datasets by giving each point's location a small amount of random variation.
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Xy has 10 pets: 4 dogs, 3 cats, 2 alpacas and 1 bunny. If he wants to arrange them in a row and make sure the pets are always grouped according to species, how many ways can he arrange the pets?
The number of ways pets can be arranged in group according to the species is in a row 288 ways.
Pets can be grouped by permutation concept as follows.
Total number of pets = 10
Number of dogs = 4
Number of cats = 3
Number of alpacas = 2
Number of bunny = 1
The number of ways pets can be arranged in group according to the species in a row as,
⇒ (4!)(3!)(2!)(1!)
⇒ (24)(6)(2)(1)
⇒ 288
Hence we can conclude that the number of ways pets can be arranged in group according to the species in a row is 288 ways.
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The point (3,2) reflected in the x-axis is (
,
).
Question 2
b. Reflect (3,2) in the y-axis.
The point (3,2) reflected in the y-axis is (
,
).
Answer:
the answers below:
1: (3,-2)
2: ( -3,2)
On January 1, year 1, Mitchell-Marsh Services, Inc., a computer software training firm, leased several computers under a two-year operating lease agreement from Global Computers Corporation, which routinely finances equipment for other firms at an annual interest rate of 6%. The contract calls for four rent payments of $15,000 each, payable semiannually on June 30 and December 31 each year. The computers were acquired by Global Computers at a cost of $120,000 and were expected to have a useful life of six years with no residual value. Both firms record amortization and depreciation semiannually.
The effective interest rate on the operating lease is 12.45%
Under the straight-line method of depreciation, the annual depreciation for the computers can be determined as follows:
Depreciation expense = (Cost - Residual value) / Useful life
Depreciation expense = ($120,000 - $0) / 6 years = $20,000 per year
Hence, semi-annual depreciation is $10,000 ($20,000 / 2) per payment.
The operating lease payments are $15,000 per semi-annual payment. The total amount of the lease payments for the 2-year term is $60,000 ($15,000 x 4).
Thus, the present value of the operating lease payments can be computed as follows:PV of lease payments = ($10,000 / 0.0609) x [1 - (1 / 1.0609^8)]PV of lease payments = $47,907.29
The implicit interest rate on the lease is 0.0609 or 6.09% (computed by dividing the lease interest by the present value of the lease payments).
The effective interest rate is 12.45% (computed by doubling the implicit interest rate).
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I need help writing equations of a parallel and perpendicular equations
The equation of the line that is parallel to y = 2/5x + 2 and passes through (-5, 6) is y = (2/5)x + 8.
What connection exists between the slopes of parallel and perpendicular lines?Perpendicular line slopes are the negative reciprocals of one another. In other words, any line that is perpendicular to a line with a slope of m will have a slope of -1/m. If lines are parallel if they have the same slope.
The slope of the given line is 2/5.
We know that, any line perpendicular to it will have a slope that is the negative reciprocal of 2/5, which is -5/2.
Using the point-slope form of a line:
y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line.
Substituting the values we know:
y - 6 = (-5/2)(x - (-5))
y - 6 = (-5/2)x - (25/2)
y = (-5/2)x + 17.5
Therefore, the equation of the line perpendicular to y = 2/5x + 2 and passes through (-5, 6) is y = (-5/2)x + 17.5.
The slope of parallel lines are same. Thus, using point slope form:
y - 6 = (2/5)(x - (-5))
y - 6 = (2/5)x + 2
y = (2/5)x + 8
Therefore, the equation of the line that is parallel to y = 2/5x + 2 and passes through (-5, 6) is y = (2/5)x + 8.
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How find the point at which the line intersects the given plane.
The point where the line intersects the plane is (-8/3, 11/3, 8/3).
To find the point where the given line intersects the plane, we need to find values of t that satisfy both the equation of the line and the equation of the plane.
First, we can substitute the equations of line into the equation of the plane to get:
3(-1-t) + (2+t) + 3(1+t) = 1
Simplifying this equation gives:
-3t + 6 = 1
-3t = -5
t = 5/3
Now that we have found a value of t that satisfies both equations, we can substitute it back into the equation of the line to get the point of intersection:
x = -1 - (5/3) = -8/3
y = 2 + (5/3) = 11/3
z = 1 + (5/3) = 8/3
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The given question is incomplete, the complete question is:
How to find the point where the line x = –1 – t, y = 2 + t, z = 1+ t intersects the plane 3x + y + 3z = 1 ?
A taxpayer’s annual Social Security tax is $6,107 and the social security tax is 6.2%. What is the taxpayer’s gross annual salary? Tax rate = tax amount / gross income.
The taxpayer’s gross annual salary is $98500
How to determine the gross annual salary?The given parameters in the question are
Social Security tax = $6,107
Social security tax = 6.2%.
Also, we have the following formula for tax
Tax rate = tax amount / gross income
Substitute the known values in the above equation, so, we have the following representation
6.2% = 6107/gross income
Make gross income the subject
gross income = 6107/6.2%
Evaluate
gross income = 98500
Hence, the gross income is 98500
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A clinic has several doctors. Every patient, on average, requires about 27 minutes with a doctor Each doctor works 8 hours per day and 7 days per week. The clinic also operates 8 hours per day and 7 days per week. Based on past observations, the clinic must serve 122 patients per day. How many doctors should the clinic hires in order to serve 122 patients per day? Use at least 4 decimals in your calculation and answer.
The clinic should hire at least 7 doctors in order to serve 122 patients per day.
To determine how many doctors the clinic should hire in order to serve 122 patients per day, we need to calculate the number of patients each doctor can see within their working hours.
Let's start by calculating the total number of minutes each doctor works per day. Since each doctor works 8 hours per day and there are 60 minutes in an hour, the total minutes worked by a doctor per day would be 8 hours × 60 minutes = 480 minutes.
Next, we need to find out how many patients a doctor can see within their working hours. Given that each patient requires an average of 27 minutes with a doctor, the number of patients a doctor can see per day would be 480 minutes ÷ 27 minutes per patient = 17.7778 patients.
Since we can't have a fractional number of patients, we need to round this number up to the nearest whole number to ensure that each patient gets the required attention. Therefore, each doctor can see approximately 18 patients per day.
To serve 122 patients per day, we divide the total number of patients by the number of patients each doctor can see per day: 122 patients ÷ 18 patients per doctor = 6.7778 doctors.
Again, we can't have a fractional number of doctors, so we need to round this number up to the nearest whole number. Therefore, the clinic should hire at least 7 doctors to serve 122 patients per day.
In summary, the clinic should hire at least 7 doctors in order to serve 122 patients per day.
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A parking garage in charges a flat rate of $5.00 for 2 hours or less, and $0.25 per hour for each additional hour.
1. Write an equation to model this relationship.
2. How much do you have pay to park for 10 hours?
3. How many hours will $10 buy?
+ is the last question answer 22hours or 20hours?
1. To model the relationship between the parking hours and the cost, we can use the following equation:
\(\displaystyle\sf C(h) = \begin{cases} 5.00, & \text{if } h \leq 2 \\ 5.00 + 0.25(h - 2), & \text{if } h > 2 \end{cases}\)
Here, \(\displaystyle\sf C(h)\) represents the cost \(\displaystyle\sf C\) as a function of the parking hours \(\displaystyle\sf h\).
2. To calculate how much you have to pay for parking for 10 hours, we can substitute \(\displaystyle\sf h = 10\) into the equation:
\(\displaystyle\sf C(10) = 5.00 + 0.25(10 - 2) = 5.00 + 0.25(8) = 5.00 + 2.00 = 7.00\)
Therefore, you would have to pay $7.00 to park for 10 hours.
3. To find out how many hours $10 can buy, we need to solve the equation:
\(\displaystyle\sf 10 = 5.00 + 0.25(h - 2)\)
Simplifying the equation:
\(\displaystyle\sf 10 - 5.00 = 0.25(h - 2)\)
\(\displaystyle\sf 5.00 = 0.25(h - 2)\)
Dividing both sides of the equation by 0.25:
\(\displaystyle\sf \frac{5.00}{0.25} = h - 2\)
\(\displaystyle\sf 20 = h - 2\)
Adding 2 to both sides of the equation:
\(\displaystyle\sf h = 20 + 2 = 22\)
Therefore, $10 would buy you 22 hours of parking.
To clarify, the answer is 22 hours, not 20 hours.
5.) You Uncle is putting in a rectangular shaped pool. The sides of the pool measure 5x and 7x. What is the area oft
pool? (Area= length x width)
Answer:
area =length × breadth
=7x × 5x
=35x