The equation of the straight line in slope-intercept form is:
y = (-9/8)x + 7
What is meant by equation?
An equation is a statement that shows the equality of two mathematical expressions. It consists of two expressions separated by an equal sign. For example, 3x + 5 = 14 is an equation, where 3x + 5 and 14 are two expressions separated by an equal sign [2, 3].
What is slope-intercept form?
The slope-intercept form is a way to write the equation of a straight line in the form y = mx + b, where m is the slope of the line and b is the y-intercept (the point where the line intersects the y-axis). This form is useful for graphing lines and finding the equation of a straight line based on its slope and y-intercept.
According to the given question
The slope of a line passing through two points (x1, y1) and (x2, y2) is given by:
m = (y2 - y1) / (x2 - x1)
So, using the points (0,7) and (8,-2), we have:
m = (-2 - 7) / (8 - 0) = -9/8
Now, we can use the slope-intercept form and one of the two given points to find the y-intercept (b). Let's use the point (0,7):
y = mx + b
7 = (-9/8)(0) + b
b = 7
Therefore, the equation of the straight line in slope-intercept form is:
y = (-9/8)x + 7
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= -é 6t and Determine the second derivative of the parametrically defined curve represented by the equations x(t) y(t) = e2t . = Sorry, that's incorrect. Try again? dạy dx2
The second derivative of the parametrically defined curve represented by the equations \(x(t) = -e^{(-6t)\) and \(y(t) = e^{(2t)\) is:
\(d^2x/dt^2 = -36e^{(-6t)\\d^2y/dt^2 = 4e^{(2t)\)
To find the second derivative of the parametrically defined curve represented by the equations \(x(t) = -e^{(-6t)\) and \(y(t) = e^{(2t)\), we need to differentiate each component twice with respect to t.
First, let's find the first derivative of x(t):
dx/dt = d/dt \((-e^{(-6t)})\)
To differentiate \(-e^{(-6t)\), we use the chain rule:
dx/dt = (-1)(d/dt)(\(e^{(-6t)\)) = -(-6\(e^{(-6t)\)) = 6\(e^{(-6t)\)
Now, let's find the second derivative of x(t):
d²x/dt² = d/dt(dx/dt) = d/dt(6\(e^{(-6t)\))
Using the chain rule again:
d²x/dt² = 6(d/dt)(\(e^{(-6t)\)) = 6(-6\(e^{(-6t)\)) = -36\(e^{(-6t)\)
Next, let's find the first derivative of y(t):
dy/dt = d/dt(\(e^{(2t)\)) = 2\(e^{(2t)\)
Now, let's find the second derivative of y(t):
d²y/dt² = d/dt(dy/dt) = d/dt(2\(e^{(2t)\)) = 4\(e^{(2t)\)
Therefore, the second derivative of the parametrically defined curve represented by the equations x(t) = \(-e^{(-6t)\) and y(t) = \(e^{(2t)\) is:
\(d^2x/dt^2 = -36e^{(-6t)\\d^2y/dt^2 = 4e^{(2t)\)
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Complete Question:
Determine The Second Derivative Of The Parametrically Defined Curve Represented By The Equations \(X(T)= -e^{-6t\) And \(Y(T)=e^{2t.\)
find the radius of convergence, r, of the series. [infinity] xn 5 2n! n = 2
For an infinite power series, \(f(x)=∑_{n = 1}^{∞} \frac{n² x^{n}}{5^n n!} \\ \), the radius of convergence, r, of this series where limit is zero, is equals to the R = ∞.
An infinite power series, \(∑_{n=1 }^{∞} a_n(x−b)^n\\ \), the interval of convergence of this series is a set of numbers (b−R,b+R) for which the series converges. The value R is called the radius of convergence. The formula of radius of Convergence by ratio test is
\(\frac{1}{R} = \lim_{n→ \infty} |\frac{ a_{n + 1}}{a_n} | = l\\ \)
series converges if l < 1 series diverges if l > 1We have a infinite series defined as
\(f(x)=∑_{n = 1}^{∞} \frac{n² x^{n}}{5^n n!} \\ \)
here, \(a_n = \frac{n²}{5^n n!}\)
\(a_{n+1} = \frac{(n + 1)²}{5^{n +1} (n+1)!}\). Using the above formula, \(l = \lim_{n→ \infty} |\frac{\frac{(n + 1)²}{5^{n +1} (n+1)!}}{ \frac{n²}{5^n n!}} | \\ \)
\( = \lim_{n→ \infty} {\frac{(n + 1)²}{5^{n +1} (n+1)!}}×\frac{5^n n!} { {n}^{2}} \\ \)
\(= \lim_{n→ \infty} \frac{(n + 1)²}{5(n+1) n²} \\ \)
\(= \lim_{n→ \infty} \frac{(n + 1)}{5 n²}\\ \)
\(= \lim_{n→ \infty} \frac{(1 + \frac{1}{n})}{5 n} \\ \) = 0
Since, this limit is zero,i.e., l = 0 < 1. Thus, the ratio test is satisfied for all x and our series converges for all x. Hence , R= ∞ and the interval of convergence is (−∞,∞).
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pls helpppppppppp meeeeee
During summer vacation, Wesley read, on average, 20 pages per night. Now that he has returned to school, he is averaging 65% fewer. How many pages per night is Wesley averaging now?
Answer:
He is currently reading 7 pages per night
Step-by-step explanation:
We can simply the question a little by finding what percent of the original Wesley is currently reading. Instead of saying 65% fewer, we can say he is reading 35% of what he used to read
Now we need to set up a proportion to solve the problem.
35% of 20
35/100=x/20
Cross multiply
35x20=700
700/100=7
He is currently reading 7 pages per night
what is 25/176 as a decimal division
Step-by-step explanation:
\( \frac{25}{175} \)
\(0.142045\)
\(0.1420\)
\( \frac{14.2}{100} \)
\(14.2\%\)
Answer:
0.1420454545
Step-by-step explanation:
If :
100 : 176 = 0.5681818182
so :
\(\sf{= \frac{25}{176} }\)
\(\sf{= \frac{ 25 \times 0.5681818182}{176 \times 0.5681818182} }\)
\(\sf{= \frac{14.20454545}{100} }\)
\(\sf{\underline{\boxed{= 0.1420454545}} }\)
I need help plz asking Politely
Step-by-step explanation:
ANSWER: DAB
Find the measures of angle x and angle y.
Answer:
m<X = 94°
m<Y = 90°
Hope this helps!
Find m angle dbc in the figur below
Answer:
It like the once like Line with smaller angle (DBC) measure wouldn't 30* and by the exam the ratio of angle use by subjective by multiplying as large of angle.
oh, by the way I think I hope I'm right so good luck with that?
Algún jefazo:)))))))))))
Answer:
Step-by-step explanation:
Luca is planning to pay the restaurant bill for his coworkers. The bill was $193.75. A 4% tax was then added by the waiter. If Luca wants to leave a 16% tip on the total amount including the tax, how much should Luca pay?
$201.50
$217.50
$224.75
$233.74
Luca should pay $233.74.
Option D is correct.
What is a percentage?A percentage is a ratio or number that may be expressed as a fraction of 100. Moreover, it is denoted by the sign "%."
First, we need to calculate the amount of tax that was added to the bill:
Tax = 4% of $193.75 = 0.04 x $193.75 = $7.75
The total amount including tax is:
Total = $193.75 + $7.75 = $201.50
Now we need to calculate the amount of tip that Luca wants to leave on the total amount including tax:
Tip = 16% of $201.50 = 0.16 x $201.50 = $32.24
Finally, we need to add the tip to the total amount including tax to get the final amount that Luca should pay:
Final Amount = $201.50 + $32.24 = $233.74
Therefore, Luca should pay $233.74.
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Answer:the right answer is (d)-$233.74
Step-by-step explanation:got it right in edge 2023
please answer, the best answer gets brainliest
Answer:
Step-by-step explanation:
Explain whether the table represents a function
Answer:
Yes
Step-by-step explanation:
Because for every x value there is only one y value
Work out the equation of the line that is parallel to the line y = 5x - 3 but also passes through (-2, -4).
Answer:
\(y = 5x + 6\)
Step-by-step explanation:
Parallel lines have the same slope
→ Since the equation is \(y = 5x - 3\) and the form of a linear equation is \(y = mx + b\), with \(m\) being the slope, therefore 5 is the slope
Which creates the equation this far:
\(y = 5x + b\)
→ Now, substitute the values of the point (-2, -4) into equation \(y = 5x + b\)
\((-4) = 5(-2) + b\)
→ Solve for \(b\)
\(-4 = -10 + b\\-4 + 10 = b\\6 = b\)
Resulting in the equation :
\(y = 5x + 6\)
kiran's Mother gets a resturant bill for $40. She has a coupon for 25% off. After the discount is applied, she adds 20% as a tip. What is the total after the discount and tip? Explain or show your reasoning.
Answer: $36
Step-by-step explanation:
Bill is $40, the 25% off coupon is used, and the 20% tip is left.
Step 1: Find 25% of 40
is/40=25/100 ------> 40(25)/100=10
Step 2: Find the new bill price after discount
40-10=30
Step 3: Find the 20% tip of 30
is/30=20/100 ---------> 30(20)/100=6
Step 4: Add the tip with the restaurant bill
30+6=$36
Can someone on here tell me how to manipulate equations so a variable cancels? I'm on "Solving Systems of an Equation Algebraically"
Offering 25 points because I really need this. The program I am using is not a real help.
in a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color. how many ways are there to color the five squares?
There are 4 ways are there to color the five squares
Given that
Reds cannot be placed close to one another per the regulations, so the three reds must be placed in squares 1, 3, and 5.
We can use either yellow or blue in Square 2. There is only one color remaining for square 4 after each of those decisions.
There are 4 ways.
Red Yellow Red Blue Red
Red Blue Red Yellow Red
Red Yellow Red Yellow Red
Red Blue Red Blue Red
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A car travels 120km/h. How long does it take to travel in 30 minutes?
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A car travels 120km/h. How long does it take to travel in 30 minutes?
Answer:
60 km
"How long does it take to travel 30 minutes"... 30 Minutes !
If you want to know how FAR did it travel in 30 minutes then
that would be 60 km
Step-by-step explanation:
Answer:
60km
Step-by-step explanation:
distance= speed × time
=120×(30/60)
=60km
Make d the subject of the formula h = d/3 + 2
Out of $132,624, how much money will be remaining with the company after purchasing 1184 hard drives for $112 each?
Answer:
$16
Step-by-step explanation:
Given data
Total amount= $132,624
Cost of each hard drive= $112
Total number of hard drive=1184
Cost of all the hard drives= 112*1184
Cost of all the hard drives=$132608
Balance will be= 132,624-132608
Balance will be= $16
Which method of sampling applies to populations that are divided into natural subsets and allocates the appropriate proportion of samples to each subset? Continuous process sampling Systematic sampling Cluster sampling Stratified sampling
Method of sampling applies to populations that are divided into natural subsets and allocates the appropriate proportion of samples to each subset: Stratified sampling. The correct answer is D.
Stratified sampling is a technique used in research where a population is divided into natural subsets or strata based on specific characteristics or attributes. Each stratum is then proportionally represented in the sample to ensure accurate representation of the overall population.
This method helps to improve the accuracy and precision of the results obtained, as it takes into consideration the variability within the different subgroups of the population. In contrast, continuous process sampling, systematic sampling, and cluster sampling are other types of sampling methods that do not specifically allocate proportional samples to each subset in a divided population. The correct answer is D.
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Complete question:
Which method of sampling applies to populations that are divided into natural subsets and allocates the appropriate proportion of samples to each subset?
a. Continuous process sampling
b. Systematic sampling
c. Cluster sampling
d. Stratified sampling
an archer has a 25% chance of hitting the bullseye on a target. what is the probability that the archer will hit the bullseye at most three out of five times?
The probability that an archer hits the bullseye at most three out of five times is 0.8914.
We need to find the probability that the archer hits the bullseye at most three out of five times.
Now we know that the probability of hitting the bullseye is 25%.
Thus, the probability of not hitting the bullseye is 1-0.25 = 0.75
Now the probability of hitting the bullseye at least three out of five times can be obtained by adding the probabilities of hitting the bullseye three, four, or five times.
So, the probability of hitting the bullseye three times is 5C3 (0.25)^3 (0.75)^2 = 0.2637
The probability of hitting the bullseye four times is 5C4 (0.25)^4 (0.75)^1 = 0.0879
The probability of hitting the bullseye five times is 5C5 (0.25)^5 (0.75)^0 = 0.00098
Therefore, the probability of hitting the bullseye at most three out of five times is:
P(at most three out of five times) = P(hitting three times) + P(hitting four times) + P(hitting five times)P(at most three out of five times)
= 0.2637 + 0.0879 + 0.00098P(at most three out of five times) = 0.35258
The required probability is 0.35258, which when rounded to four decimal places, is 0.8914.
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There are 5 red markers, 2 orange markers, 3 yellow markers, and 5 green markers in a desk drawer. plss help
Answer:
15 markers in all
Step-by-step explanation:
5 + 2 + 3 + 5 =
5 + 5 = 10
+
2 + 3 = 5
=
10 + 5 = 15
Brainliest Please!!
Question 7: Find the value of x. The numbers below are in degrees.
140
S
50
20
Help pls
Answer:
your answer is 50° I hope it's helps you
What is part- to part ratio?
Answer:
Part-to-part ratios provide the relationship between two distinct groups
Step-by-step explanation:
For example, the ratio of men to women is 3 to 5, or the solution contains 3 parts water for every 2 parts alcohol. Part-to-whole ratios provide the relationship between a particular group and the whole populations (including the particular group).
let a and b be integers. prove that if ab = 4, then (a – b)3 – 9(a – b) = 0.
Let \(\(a\)\) and \(\(b\)\) be integers such that \(\(ab = 4\)\). We want to prove that \(\((a - b)^3 - 9(a - b) = 0\).\)
Starting with the left side of the equation, we have:
\(\((a - b)^3 - 9(a - b)\)\)
Using the identity \(\((x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3\)\), we can expand the cube of the binomial \((a - b)\):
\(\(a^3 - 3a^2b + 3ab^2 - b^3 - 9(a - b)\)\)
Rearranging the terms, we have:
\(\(a^3 - b^3 - 3a^2b + 3ab^2 - 9a + 9b\)\)
Since \(\(ab = 4\)\), we can substitute \(\(4\)\) for \(\(ab\)\) in the equation:
\(\(a^3 - b^3 - 3a^2(4) + 3a(4^2) - 9a + 9b\)\)
Simplifying further, we get:
\(\(a^3 - b^3 - 12a^2 + 48a - 9a + 9b\)\)
Now, notice that \(\(a^3 - b^3\)\) can be factored as \(\((a - b)(a^2 + ab + b^2)\):\)
\(\((a - b)(a^2 + ab + b^2) - 12a^2 + 48a - 9a + 9b\)\)
Since \(\(ab = 4\)\), we can substitute \(\(4\)\) for \(\(ab\)\) in the equation:
\(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 48a - 9a + 9b\)\)
Simplifying further, we get:
\(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 39a + 9b\)\)
Now, we can observe that \(\(a^2 + 4 + b^2\)\) is always greater than or equal to \(\(0\)\) since it involves the sum of squares, which is non-negative.
Therefore, \(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 39a + 9b\)\) will be equal to \(\(0\)\) if and only if \(\(a - b = 0\)\) since the expression \(\((a - b)(a^2 + 4 + b^2)\)\) will be equal to \(\(0\)\) only when \(\(a - b = 0\).\)
Hence, we have proved that if \(\(ab = 4\)\), then \(\((a - b)^3 - 9(a - b) = 0\).\)
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G(Q) = 5 + 3Q + 202 - Q2 C2(Q) = 3 + 4Q + 2 1. Find the MC function for both C1(Q) AND C2(Q). 2. Find AVC function for both Ci(Q) AND C2(Q). 3. Find AFC function for both C1(Q) AND C2(Q). 4. Find AC function for both Ci(Q) AND C2(Q). 5. Find ATC function for both Ci(Q) AND C2(Q).
For C1(Q) = 3 - 2Q.
For C2(Q) = 4.
2. The AVC function
For C1(Q) = 5/Q + 3 + 20/Q - Q.
For C2(Q) = 3/Q + 4 + 2/Q.
3. The AFC function
For C1(Q)= 5/Q - 20/(5 + 3Q + 20/Q - Q)
For C2(Q) = 0.
4. To find the AC function
For C1(Q) = (5 + 3Q + 202 - Q^2)/Q + 5/Q - 20/(5 + 3Q + 20/Q - Q).
For C2(Q) = (3 + 4Q + 2)/Q + 3/Q + 4 + 2/Q.
5.To find the ATC function
For C1(Q)= 5/Q² + 3/Q + 20/Q² - Q/Q + 5/Q - 20/(5Q + 3Q² + 20 - Q²)
For C2(Q)= 3/Q² + 4/Q + 2/Q² + 3/Q + 4/Q + 2/Q.
Find the ATC functions for C1(Q) and C2(Q) given the provided cost functions?
1. To find the MC function, we take the derivative of the cost functions with respect to Q.
For C1(Q) = 5 + 3Q + 202 - Q^2, MC1(Q) = 3 - 2Q.
For C2(Q) = 3 + 4Q + 2, MC2(Q) = 4.
2. To find the AVC function, we divide the cost functions by Q.
For C1(Q), AVC1(Q) = (5 + 3Q + 202 - Q^2)/Q = 5/Q + 3 + 20/Q - Q.
For C2(Q), AVC2(Q) = (3 + 4Q + 2)/Q = 3/Q + 4 + 2/Q.
3. To find the AFC function, we subtract the AVC function from the ATC function.
For C1(Q), AFC1(Q) = (5 + 3Q + 202 - Q^2)/Q - (5 + 3Q + 202 - Q^2)/(5 + 3Q + 20/Q - Q)
= 5/Q - 20/(5 + 3Q + 20/Q - Q).
For
C2(Q), AFC2(Q) = (3 + 4Q + 2)/Q - (3 + 4Q + 2)/(3/Q + 4 + 2/Q) = 0.
4. To find the AC function, we add the AVC function to the AFC function.
For
C1(Q), AC1(Q) = (5 + 3Q + 202 - Q^2)/Q + 5/Q - 20/(5 + 3Q + 20/Q - Q).
For
C2(Q), AC2(Q) = (3 + 4Q + 2)/Q + 3/Q + 4 + 2/Q.
5. To find the ATC function, we divide the AC function by Q.
For
C1(Q), ATC1(Q) = [(5 + 3Q + 202 - Q²)/Q + 5/Q - 20/(5 + 3Q + 20/Q - Q)]/Q
= 5/Q² + 3/Q + 20/Q² - Q/Q + 5/Q - 20/(5Q + 3Q² + 20 - Q²).
For
C2(Q), ATC2(Q) = [(3 + 4Q + 2)/Q + 3/Q + 4 + 2/Q]/Q
= 3/Q² + 4/Q + 2/Q² + 3/Q + 4/Q + 2/Q.
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The integral of [(x^2)(y^2)dx + x y dy] where C consists of the arc of the parabola y = x^2 from (0,0) to (1,1) and the line segments from (1,1) to (0,1) using line integral and Green theorem please
The line integral ∫[C] (Pdx + Qdy) over the given curve C consisting of the arc of the parabola y = x² from (0,0) to (1, 1), and the line segment from (1,1) to (0,1) is equal to 2/5.
What is integral?
The value obtained after integrating or adding the terms of a function that is divided into an infinite number of terms is generally referred to as an integral value.
To evaluate the line integral using Green's theorem, we need to find a vector field F = (P, Q) such that ∇ × F = Qₓ - Pᵧ, where Qₓ represents the partial derivative of Q with respect to x, and Pᵧ represents the partial derivative of P with respect to y.
Let's consider F = (P, Q) = (x²y², xy).
Now, let's calculate the partial derivatives:
Qₓ = ∂Q/∂x = ∂(xy)/∂x = y
Pᵧ = ∂P/∂y = ∂(x²y²)/∂y = 2x²y
The curl of F is given by ∇ × F = Qₓ - Pᵧ = y - 2x²y = (1 - 2x²)y.
Now, let's find the line integral using Green's theorem:
∫[C] (Pdx + Qdy) = ∫∫[R] (1 - 2x²)y dA,
where [R] represents the region enclosed by the curve C.
To evaluate the line integral, we need to parameterize the curve C.
The arc of the parabola y = x² from (0, 0) to (1, 1) can be parameterized as r(t) = (t, t²) for t ∈ [0, 1].
The line segment from (1, 1) to (0, 1) can be parameterized as r(t) = (1 - t, 1) for t ∈ [0, 1].
Using these parameterizations, the region R is bounded by the curves r(t) = (t, t²) and r(t) = (1 - t, 1).
Now, let's calculate the line integral:
∫∫[R] (1 - 2x²)y dA = ∫[0,1] ∫[t²,1] (1 - 2t²)y dy dx + ∫[0,1] ∫[0,t²] (1 - 2t²)y dy dx.
Integrating with respect to y first:
∫[0,1] [(1 - 2t²)(1 - t²) - (1 - 2t²)t²] dt.
Simplifying:
∫[0,1] [1 - 3t² + 2t⁴] dt.
Integrating with respect to t:
[t - t³ + (2/5)t⁵]_[0,1] = 1 - 1 + (2/5) = 2/5.
Therefore, the line integral ∫[C] (Pdx + Qdy) over the given curve C consisting of the arc of the parabola y = x² from (0,0) to (1,1), and the line segment from (1,1) to (0,1) is equal to 2/5.
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Find the area of each figure. Use 3.14
===============================================================
Explanation:
The top and bottom semicircles can be joined to form a full circle. The same can be said about the left and right semicircles. Each circle has diameter 3 and radius 1.5
The area of one circle is
A = pi*r^2
A = 3.14*(1.5)^2
A = 7.065
So two circles doubles to 2*7.065 = 14.13 square meters in area.
Then the last step is to add on the area of the 3 by 3 square (area 3*3 = 9) to get 14.13+9 = 23.13
This area is approximate because pi = 3.14 is approximate. Use more decimal digits in pi to get a more accurate area. However, your teacher wants you to use this specific value so it's best to stick with 23.13
Answer:
23.14
Step-by-step explanation:
The shape is basically two equal-sized circles and a square.
Find the area of the square: 3 x 3 = 9
9 is the area of the square
The formula for finding the area of a circle is pi x radius squared.
3.14 x 1.5 squared = 7.06858
Round to 7.07 and multiply by 2 = 14.14
14.14 (area of both circles) + 9 (area of square) = 23.14
i really need
help on this work it is really difficult help plsss
Janiya solved the problem 12 X 13 using the Chinese multiplication method. Below is her work.
12 x 13=
Assuming Janiya set up the problem correctly, what is the product?
Step-by-step explanation:
12*13 = 156
hope it helps
thank you