Answer:
the slope is 2/7 and the intercept is 4
Step-by-step explanation:
In order to find slope, you use the equation delta y over delta x which is the equation, y2-y1/x2-x1.
In this case you plug in each point and get the equation, 2-4/-7-0 or 4-2/0+7.
Simplify to get 2/7.
To find the intercept, you must see what's the y value when x is 0. In this case it's already given to you, so y intercept is 4.
plz mark me brainliest aha.
Lea walked12mile in 13 hour. How long will it take Lea to walk 214 miles? Enter your answer as a mixed number in simplest form in the box.
A professor of statistics refutes the claim that the average student spends 3 hours studying for a midterm exam. Which hypothesis is used to test the claim
The hypothesis that is typically used to test the claim is the null hypothesis, which asserts that the average time spent by students studying for a midterm exam is indeed 3 hours. The alternative hypothesis would be that the average time spent is either greater or less than 3 hours.
The null hypothesis is usually denoted as H0 and the alternative hypothesis as Ha. In this case, we can write:
H0: The average time spent by students studying for a midterm exam is 3 hours.
Ha: The average time spent by students studying for a midterm exam is not 3 hours.
To test this hypothesis, a statistical test can be performed, such as a t-test or a z-test, depending on the sample size and the population parameters. The results of the test will determine whether the null hypothesis can be rejected or not. If the null hypothesis is rejected, it means that there is evidence to suggest that the average time spent studying is different from 3 hours. If the null hypothesis is not rejected, it means that there is not enough evidence to suggest that the average time spent studying is different from 3 hours.
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Milan
putting money into a savings account. He starts with $350 in the savings account, and each week he adds $60.
Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Milan has been adding money. Write an
equation relating S to W. Then use this equation to find the total amount of money in the savings account after 17 weeks.
Answer:
Milan will have $1,370 in the account after 17 weeks.
Step-by-step explanation:
S(W) = 350 + 60W
S(17) = 350 + 60*70 = 1370
y=sxw+n
y= 350xw+60
Step-by-step explanation:
so yea
a student researcher is interested in assessing the physical fitness of 6th graders in the school district in which they are currently working. they conduct a trial among 10 6th graders where the probability of success has been pre-observed as .45. q2.1 what is the standard deviation of this trial? round your answer to two decimal places.
The standard deviation of the trial where a student researcher is interested in assessing the physical fitness of 6th graders in the school district in which they are currently working is 1.21. The variance of the trial is 2.475 and The mean of the trial is 4.5
Step 1: Calculation of the meanFrom the given data, the probability of success is pre-observed as 0.45 and the number of students who have conducted the trial is 10.To calculate the mean of the trial, we use the formula below:
μ = np
Where;
μ = mean of the trial
n = number of students
p = probability of success
Substituting the values in the formula
;μ = 10 × 0.45μ = 4.5
Step 2: Calculation of the variance The variance of the trial can be calculated using the formula below:
σ² = npq
Where; σ² = variance of the trial
n = number of students
p = probability of success
q = probability of failure, which is given by q = 1 – p
Substituting the values in the formula
;σ² = 10 × 0.45 × (1 – 0.45)σ² = 2.475
Step 3: Calculation of the standard deviation The standard deviation of the trial can be calculated using the formula below:
σ = √σ²
Substituting the value of variance in the formula above,σ = √2.475σ = 1.21
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What is the connection string for SQL Server using Windows Authentication?
The connection string for SQL Server using Windows Authentication is as follows:
Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;
Specify the server address in the format "Server=myServerAddress". Replace "myServerAddress" with the name or IP address of the SQL Server instance you want to connect to.
Specify the name of the database you want to connect to in the format "Database=myDataBase". Replace "myDataBase" with the name of the database.
Use Windows Authentication by setting "Trusted_Connection=True". This means that the user running the application is authenticated using their Windows credentials, rather than a SQL Server login.
Use semicolons (;) to separate the different parts of the connection string.
Using Windows Authentication is a more secure and convenient way to connect to a SQL Server database, as it eliminates the need to store and manage login credentials in the application.
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Pls answer both Pls pls
Answer:
bjkfkvdvdejij
Step-by-step explanation:
22333444 ijdcijsivjdivdvndk snciscicicnlvjavjadvj
Please help!
What is the discriminant D of the equation?
a^2-2a+5=0
Lightbulbs act as resistors. Janine is building a circuit that contains two lightbulbs in parallel. One of the lightbulbs has a
resistance of 120 ohms, but the resistance of the second lightbulb is unknown. She models the total
resistance in the
circuit, t, with this equation, in which r represents the resistance of the second lightbulb.
t =
1207
+ 120
Find the inverse of Janine's equation.
Finally, we can divide both sides of the equation by -120/r to get r = -120/(t - 120).
Therefore, the inverse of Janine's equation is r = -120/(t - 120).
Which type of equation might you employ?In algebra, an equation is a mathematical statement that establishes the equality of two mathematical expressions. Take a look at the formula 3x + 5 = 14, where 3x + 5 and 14 are two expressions that are separated by the word "equal."
What varieties of equations are there?Either identities or conditional equations are categories for equations. For each potential value, the variables provide an identity. Only certain combinations of the values for the variables allow a conditional equation to hold true. Two expressions are joined together in an equation by the equals sign ("=").
To find the inverse of Janine's equation, we need to solve for r in terms of t. Here is how we can do that:
First, we can rearrange the equation to get t - 120 = 1/r.
Then, we can divide both sides of the equation by 1/r to get t/r - 120/r = 1.
Finally, we can divide both sides of the equation by -120/r to get r = -120/(t - 120).
Therefore, the inverse of Janine's equation is r = -120/(t - 120).
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Answer: R=120t/120-t
Explanation: edmentum/plato :)
Which situation best represents the equation 10.25h+6.50=11h+4
The situation that best represents the given equation is that there are two limo companies that charge based on the number of people, "h", that they carry. Limo A charges $6.5 plus $10.25 per person. Limo B charges $4 plus $11 per person. The equation equates the charges for the two companies to carry a "h" number of people.
An equation is given to us.The equation is linear in one variable.The equation is given below :10.25h + 6.50 = 11h + 4We need to find a situation that best fits the above equation.We can see that on the left hand side of the equation, 6.5 is the fixed cost of something and 10.25 is the cost per unit quantity of "h". Similarly, on the right hand side of the equation, 4 is the fixed cost of something and 11 is the cost per unit quantity of "h".The equation represents a situation where the two costs are equal in magnitude and we are able to find a suitable value for the quantity "h".For example, we can see the situation given below.There are two limo companies that charge based on the number of people, "h", that they carry. Limo A charges $6.5 plus $10.25 per person. Limo B charges $4 plus $11 per person. How many people can ride to make the two companies charge the same amount?To learn more about equations, visit :
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For 60 points and brainliest Guy’s Gym charges a one time fee of $100 plus $5 per month. Bob’s Gym charges a one time fee of $160 plus $8 per month. After how many months will both gyms charge the same amount?
Answer:
-20
Step-by-step explanation:
They're never going to be the same because Bob's Gym starts at a higher number and also increases by a larger number
Answer:
-20 months lol
Step-by-step explanation:
so the first step to this is to create and equation for each
for guys gym the equation would be 5x+100 and for bob's gym the equation would be 8x+160
because we want them to equal each other we write the equation
5x+100=8x+160 and solve for x to see how many months it will take for the gyms to charge the same amount
step 1 subtract 100 from each side
5x=8x+60
step 2 subtract 8 from each side
-3x=60
step 3 divide each side by -3
x=-20 it will take -20 week for them to charge the same amount
(i think there might of been a mistake in the question lol)
find the cross product v = a ×b, where a = 〈1, 2, 3〉 and b = 〈3, 5, 8〉
The cross product of vectors a and b is v = 〈1, 1, -1〉.
The cross product of two vectors is a vector that is orthogonal (perpendicular) to both of the original vectors. It is calculated using the determinant of a 3x3 matrix.
Let's consider two vectors a = 〈a1, a2, a3〉 and b = 〈b1, b2, b3. To find the cross product of two vectors, we can use the formula:
v = (a2b3 - a3b2)i + (a3b1 - a1b3)j + (a1b2 - a2b1)k
Given vectors a = 〈1, 2, 3〉 and b = 〈3, 5, 8〉, we can substitute their components into the formula:
v = ((2 * 8) - (3 * 5))i + ((3 * 3) - (1 * 8))j + ((1 * 5) - (2 * 3))k
= (16 - 15)i + (9 - 8)j + (5 - 6)k
= 1i + 1j - 1k
= 〈1, 1, -1〉
Therefore, the cross product of vectors a and b is v = 〈1, 1, -1〉.
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What is another way to express 42 + 24
Answer:
20+40+2+4 or 24 + 42
Step-by-step explanation:
Five years ago, someone used her $40,000 saving to make a down payment for a townhouse in RTP. The house is a three-bedroom townhouse and sold for $200,000 when she bought it. After paying down payment, she financed the house by borrowing a 30-year mortgage. Mortgage interest rate is 4.25%. Right after closing, she rent out the house for $1,800 per month. In addition to mortgage payment and rent revenue, she listed the following information so as to figure out investment return: 1. HOA fee is $75 per month and due at end of each year 2. Property tax and insurance together are 3% of house value 3. She has to pay 10% of rent revenue for an agent who manages her renting regularly 4. Her personal income tax rate is 20%. While rent revenue is taxable, the mortgage interest is tax deductible. She has to make the mortgage amortization table to figure out how much interest she paid each year 5. In last five years, the market value of the house has increased by 4.8% per year 6. If she wants to sell the house today, the total transaction cost will be 5% of selling price Given the above information, please calculate the internal rate of return (IRR) of this investment in house
Can you show the math as far as formulas go?
Given the following information: Five years ago, someone used her $40,000 saving to make a down payment for a townhouse in RTP. The house is a three-bedroom townhouse and sold for $200,000 when she bought it. After paying down payment, she financed the house by borrowing a 30-year mortgage.
Mortgage interest rate is 4.25%. Right after closing, she rent out the house for $1,800 per month. In addition to mortgage payment and rent revenue, she listed the following information so as to figure out investment return: 1. HOA fee is $75 per month and due at end of each year 2. Property tax and insurance together are 3% of house value 3. She has to pay 10% of rent revenue for an agent who manages her renting regularly 4. Her personal income tax rate is 20%. While rent revenue is taxable, the mortgage interest is tax deductible. She has to make the mortgage amortization table to figure out how much interest she paid each year 5. In the last five years, the market value of the house has increased by 4.8% per year 6.
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Find the perimeter of the figure below.
9x
8x-2
5x +11
17X-6
a. 45x - 14
b. 39x - 7
C. 58x + 8
d. 14x - 125
Please select the best answer from the choices provided
Ο Α
OB
Answer:
B
Step-by-step explanation:
Perimeter is the sum of all the lengths of its sides.
Perimeter of the figure
= 9x +8x -2 +17x -6 +5x +1
= 9x +8x +17x +5x -2 -6 +1
= 39x -7
Thus, the correct answer is option B.
Which sequence is an arithmetic sequence?
Answer:
The answer would be A!!!
PLEASE HELP ASAP BRAINLIEST
Area is Length x width.
Area = 4x * 5
Area = 20x
Replace A in the inequality:
Now you have 100 <= 20x <= 1,000
Now solve for x by dividing all 3 by 20:
5 <= x <=50
Check to see if they are viable:
4(5) x 5 = 20 x 5 = 100
4(50) x 5 = 200 x 5 = 1,000
Since the lowest number equals 100 and the largest number equals 1,000 all values of x would be viable. The answer is YES.
A pre -image has coordinates N(2,3), U(5,-1) and M(4,1) it is reflected over the x-axis what is the y-coordinate of point U’?
Answer:
U' (5, 1 )
Step-by-step explanation:
under a reflection in the x- axis
a point (x, y ) → (x, - y ) , then
U (5, - 1 ) → U' (5, - (- 1) ) → U' (5, 1 )
NuHome Movers charges $95 per hour for loading/unloading services and $80 per hour for packing/unpacking services. Their charge is $2.50 per mile for truck rental. Jay is moving a distance of 200 miles and needs 9 hours of loading/unloading and 7 hours of packing/ unpacking. What will his moving cost be if the service also charges 7.25% tax on the total?
Answer:
Total moving cost = $2,053.84
Step-by-step explanation:
Let's write down Jay's requirements and costs associated
9 hours of loading/unloading at $95 per hour = 95 x 9 = $855
7 hours of packing/unpacking at $80 per hour = 80 x 7 = $560
200 miles of transportation at $2.50 per mile = 2.50 x 200 = $500
Total before-tax cost of moving = $855 + $560 + $500 = $1, 915
Sales Tax is additional at 7.25%
Sales Tax amount = 1915 x 7.25%
= 1915 x 7.25/100 = 138.8375 = $138.84
Total cost including sales tax = 1915.00 + 138.84 = $2,053.84
Mr. Chan places $4000 in a bank as a fixed deposit for 2 years. The bank offers an interest compounded yearly. At the end of 2 years, he receives a total of $4243.60. Find the interest rate.
Answer:
Step-by-step explanation:
Mr. Chan originally placed 4,000 in the bank as a fixed deposit for 2 years.
Each years the bank added a certain amount of interest.
At the end of the 2 years he gained 243 dollars and 60 cents just from interest.
How to solve:
Simply take away the 4 in the amount of money
Leaving: $243.60
( 2 years )
Now divide 243.60 by 1/2
which is 121.8
Mr.Chan got 121.8 worth of interest a year
$10.5 a month
$2.3 a week
6 cents a day
All in 2 years.
Which one doesn't belong?
1. 5 + 7 = 7 + 5
2. 5 * 7 = 7 * 5
3. 2 = 7 - 5
4. 5 - 7 = 7 - 5
Write a post sharing which equation you think doesn't belong and why.
Answer:
3 does not belong because its not long enough
Aubree invested $27,000 in an account paying an interest rate of 0.0825% compounded monthly. Addison invested $27,000 in an account paying an interest rate of 0.08625 % compounded continuously. After 20 years, how much more money would Addison have in her account than Aubree, to the nearest dollar?
Answer:
A = $27,445.50
Step-by-step explanation:
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 0.0825%/100 = 0.000825 per year.
Solving our equation:
A = 27000(1 + (0.000825 × 20)) = 27445.5
A = $27,445.50
The total amount accrued, principal plus interest, from simple interest on a principal of $27,000.00 at a rate of 0.0825% per year for 20 years is $27,445.50.
Answer: $11741
Step-by-step explanation:Rate 1: 8
4
1
%=8+1/4=
\,\,8.25\%\rightarrow 0.0825
8.25%→0.0825
\text{Rate 2: }8\tfrac{5}{8}\%=8+5/8=
Rate 2: 8
8
5
%=8+5/8=
\,\,8.625\%\rightarrow 0.08625
8.625%→0.08625
\text{Calculate Final Amount for Aubree}
Calculate Final Amount for Aubree
\overline{\phantom{\text{Calculate Final Amount for Aubree}}}
Calculate Final Amount for Aubree
\text{Compounded Monthly:}
Compounded Monthly:
A=P\left(1+\frac{r}{n}\right)^{nt}
A=P(1+
n
r
)
nt
P=27000\hspace{35px}r=0.0825\hspace{35px}t=20\hspace{35px}n=12
P=27000r=0.0825t=20n=12
A=27000\left(1+\frac{0.0825}{12}\right)^{12(20)}
A=27000(1+
12
0.0825
)
12(20)
A=27000(1.006875)^{240}
A=27000(1.006875)
240
A=139796.9278
A=139796.9278
\text{Calculate Final Amount for Addison}
Calculate Final Amount for Addison
\overline{\phantom{\text{Calculate Final Amount for Addison}}}
Calculate Final Amount for Addison
\text{Compounded Continuously:}
Compounded Continuously:
A=Pe^{rt}
A=Pe
rt
P=27000\hspace{35px}r=0.08625\hspace{35px}t=20
P=27000r=0.08625t=20
A=27000e^{0.08625(20)}
A=27000e
0.08625(20)
A=27000e^{1.725}
A=27000e
1.725
A=151538.0678
A=151538.0678
\text{How much more money Addison has:}
How much more money Addison has:
151538.0678-139796.9278
151538.0678−139796.9278
Part F About what is the average change in distance for each increase of 1 in the iron number ? What does this mean in terms of the situation?
Part D
What is the y-intercept of the correct graph? What is the y-intercept of the incorrect graph? Are the y-intercepts the same?
The average change in distance for each increase of 1 in the iron number is -10, and the y-intercept of the graphs are not the same
The average change in distance?From the graph, we have the following points:
(x,y) = (4, 145) and (3,155)
The average change in distance is calculated using:
\(m = \frac{y_2 - y_1}{x_2 -x_1}\)
So, we have:
\(m = \frac{155 - 145}{3 - 4}\)
Evaluate
m = -10
Hence, the average change in distance for each increase of 1 in the iron number is -10
What the average rate in (a) represents?The rate, -10 in (a) means that:
The distance decreases by 10 yards for each number of iron
The y-interceptThe y-intercept is the point where the graph crosses the y-axis
From the attached graphs, we have:
The correct graph has a y-intercept of 185The incorrect graph has a higher y-intercept (195)Hence, the y-intercept of the graphs are not the same
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Place valu of 4 in 65400 is
Answer:
hundreds place in what the place value of the number 4 in 65400 the 6 is the hundred thousand place the 5 is the thounds place the four is the hundred place. The first zero is the 10th place. in the seconds, zero is the one place value
Answer:
The value 4 is in the hundreds place.
Step-by-step explanation:
We have the number 65400. The last digit in the number is 0, the 0 is in the ones place. The next number, which is also 0, is in the tens place. The next number after that is a 4, which is in the hundreds place. This shows that the 4 is in the hundreds place.
ten-thousands thousands hundreds tens ones
6 5 4 0 0
Hope this helps!
If not, I am sorry.
Look at the picture for the question.
Answer:
Option D: the x-intercept represents the minimum amount of photographs he must sell to pay for his photography lab.
Step-by-step explanation:
We are told that his monthly profit is given by the relation;
P = 32.5x - 845
Where x is number of pictures he needs.
We want to find what the x - intercept represents.
x intercept means that the y-value at that point is zero.
Thus, x-intercept means the profit is 0.
If profit is zero, it means his cost of operating his photography lab each month is equal to the amount of photographs he is able to sell.
Thus, it means that the x-intercept represents the minimum amount of photographs he must sell to pay for his photography lab monthly.
Evaluate. 1. for x=-3 and y=2
-------------
-2 -3 5
2^ x^ y^
X = - 3
Y = 2
2^ x^ y^
=2^ (-3)^ (2)^
= (-6)^(2)
= -12Need help hurry please
Answer:
Real number
Step-by-step explanation:
18.62 is a Real number. A real number is just a number that is either an integer, decimal or anything like that.
PLEASE help me with this question ASAP!!!!
Step-by-step explanation:
I believe the answer is
The fuction roughly matches the data
Answer:
The function fits very well
Step-by-step explanation:
The equation for the stats is
y=-0.039866x²+3.99375x-0.4785714
A square has an area of 112 in2. What is the side
length?
Answer:
a=10.5
a=A=112≈10.58301in
Express the ratio below in its simplest form
12:6
Answer:
12/6 simplified to lowest terms is 2/1.
Step-by-step explanation:
Divide both the numerator and denominator by the HCF
12 ÷ 6
6 ÷ 6
Reduced fraction:
12/6 simplified to lowest terms is 2/1.
Answer: 2:1
Step-by-step explanation:
12:6
Both left and right can be divided by 6, like a fraction, reduce.
= 2:1
Find the coordinates of the point on the curve
y = (2x - 3)2 at which the gradient of the
tangent is 4.
Answer:
(2, 1 )
Step-by-step explanation:
Using differential calculus
Given
y = (2x - 3)² = 4x² - 12x + 9 , then
\(\frac{dy}{dx}\) = 8x - 12
\(\frac{dy}{dx}\) is the measure of the gradient of the tangent , thus equate to 4
8x - 12 = 4 ( add 12 to both sides )
8x = 16 ( divide both sides by 8 )
x = 2
Substitute x = 2 into the equation for corresponding y- coordinate
y = (4 - 3)² = 1² = 1
The gradient of tangent is 4 at (2, 1 ) on the curve