Answer:
A. 45°
Step-by-step explanation:
When we are given two measurements of interior angles we add both of those angles together.
Also know that a triangle equals 180 degrees
So when we write out this expression \(80+55+x=180\)
\(135+x=180\\-135=-135\\x=45\)
Hope this helps
the region bounded by the given curves is rotated about the specified axis. find the volume v of the resulting solid by any method. y
The volume of the resulting solid is (26π/3) cubic units.
To find the volume of the solid generated by rotating the region bounded by the curves x = (y - 6)², x = 25, about the axis y = 1, we will integrate the cylindrical shells along the y-axis.
The limits of integration for y are from y = 1 to y = 11, as determined earlier.
The differential volume of a cylindrical shell is given by dV = 2πrh dy, where r is the distance from the axis of rotation to the curve, h is the height of the cylindrical shell, and dy is the thickness of the shell.
In this case, the radius of the cylindrical shell is r = 1, and the height of the cylindrical shell is h = x₁ - x₂ = 25 - (y - 6)².
Thus, the differential volume becomes dV = 2π(1)(25 - (y - 6)²) dy.
We can now integrate this differential volume over the range of y = 1 to y = 11 to find the total volume V:
V = ∫[1,11] 2π(25 - (y - 6)²) dy
Expanding and simplifying the integral:
V = 2π ∫[1,11] (25 - (y - 6)²) dy
V = 2π ∫[1,11] (25 - (y² - 12y + 36)) dy
V = 2π ∫[1,11] (25 - y² + 12y - 36) dy
V = 2π ∫[1,11] (-y² + 12y - 11) dy
Integrating the terms individually:
V = 2π [-y³/3 + 6y² - 11y] |[1,11]
V = 2π [-(11³/3) + 6(11²) - 11(11)] - [-(1³/3) + 6(1²) - 11(1)]
V = 2π [-1331/3 + 726 - 121] - [-1/3 + 6 - 11]
V = 2π [-1331/3 + 726 - 121 + 1/3 - 6 + 11]
V = 2π [-604/3 + 616 + 1/3]
V = 2π [13/3]
Simplifying further:
V = (26π/3)
Therefore, the volume of the resulting solid is (26π/3) cubic units.
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If principal=p,rate of interest=R and time=T,then write the formula to find the compound amount
It is given that P = principal, R = rate of interest and T = time
Formula to find compound interest is:
A = P(1 + R/100)^T
where A = amount received after n years
P = principal amount invested
R = rate of interest
T = time for which the amount is invested
The interest earned on savings that are computed using both the original principal and the interest accrued over time is known as compound interest.
It is thought that Italy in the 17th century is where the concept of "interest on interest" or compound interest first appeared. It will accelerate the growth of a total more quickly than simple interest, which is solely calculated on the principal sum.
Money multiplies more quickly thanks to compounding, and the more compounding periods there are, the higher the compound interest will be.
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15-2(7 - x) = 7
(Multi- step equations)
show steps please:)<4
Answer:
3
Step-by-step explanation:
15 - 2(7 - x) = 7
collect like terms
-2(7 - x) = 7 - 15
-2(7 - x) = -8
divide both sides by -2
7 - x = -8/-2
7 - x = 4
collect like terns
-x = 4 - 7
-x = -3
dividing both sides by -
x = 3
Answer:
Step-by-step explanation:
15-2(7-x)=7
15-14+2x=7
1+2x=7
2x=6
x=3
find the unknown side length, x. write your answer in simplest radical form
SORRY I'M TO "SMART"!!! PLZ HELP!!!!
Answer:
The area is 81.27
Step-by-step explanation:
Sorry for the late response, but I hope I helped and I always appreciate brainliest!!! :)
If you ever need me to answer a question, feel free to ask!
Answer:
area = 130.5 in²
Step-by-step explanation:
area = 1/2(6)(8.7)(5) = 130.5 in²
find the point on the plane 4x − y + 4z = 40 nearest the origin.(x,y,z)=
The point on the plane 4x - y + 4z = 40 nearest the origin is (-3.048, -0.762, 6.467)
Given data ,
To find the point on the plane 4x - y + 4z = 40 nearest the origin, we need to minimize the distance between the origin and the point on the plane.
The normal vector to the plane 4x - y + 4z = 40 is given by (4,-1,4). To find the perpendicular distance from the origin to the plane, we need to project the vector from the origin to any point on the plane onto the normal vector. Let's choose the point (0,0,10) on the plane:
Vector from origin to (0,0,10) on the plane = <0-0, 0-0, 10-0> = <0,0,10>
Perpendicular distance from the origin to the plane = Projection of <0,0,10> onto (4,-1,4)
= (dot product of <0,0,10> and (4,-1,4)) / (magnitude of (4,-1,4))
= (0 + 0 + 40) / √(4^2 + (-1)^2 + 4^2)
= 40 / √(33)
To find the point on the plane nearest the origin, we need to scale the normal vector by this distance and subtract the result from any point on the plane. Let's use the point (0,0,10) again:
Point on the plane nearest the origin = (0,0,10) - [(40 / √(33)) / √(4^2 + (-1)^2 + 4^2)] * (4,-1,4)
= (0,0,10) - (40 / √(33)) * (4/9,-1/9,4/9)
= (0,0,10) - (160/9√(33), -40/9√(33), 160/9√(33))
= (-160/9√(33), -40/9√(33), 340/9√(33))
Hence , the point on the plane 4x - y + 4z = 40 nearest the origin is approximately (-3.048, -0.762, 6.467)
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write 0.2467 being repeated, into its simplest form.
please answer with step by step problem and explanation please!
Thank you :)
Answer: I don't know if it's correct but maybe the answer will be something like
Step-by-step explanation: 0.18 = 9/50
3.596 = 899/250 and 0.2467 = 2467/10000
find the curve in the xy-plane that passes through the point (4,5) and whose slope at each point is 3sqrt(x)
The curve that passes through (4, 5) and has a slope of 3√x at each point is given by y = (\(2x^{3/2}\) + 5 - 2\((4)^{3/2}\)
To find the curve that passes through (4, 5) and has a slope of 3√x at each point, we can integrate the derivative of y with respect to x, which gives us the original function y(x):
\(\frac{dy}{dx}\) = 3√x
Integrating both sides with respect to x, we get:
y = (\(2x^{3/2}\)) + C
where C is a constant of integration.
We can use the point (4, 5) to solve for C:
5 = 2\((4)^{3/2}\) + C
C = 5 - 2\((4)^{3/2}\)
Substituting this value of C, we get the final equation for the curve:
y = (\(2x^{3/2}\)) + 5 - 2\((4)^{3/2}\)
Therefore, The curve that passes through (4, 5) and has a slope of 3√x at each point is given by y = (\(2x^{3/2}\) + 5 - 2\((4)^{3/2}\)
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A ball is thrown upward and outward from a height of 5 feet. The height of the ball, y, in feet, can be modeled by y=-0.4x^2+1.6x+5 where x is the ball's horizontal distance, in feet, from where it was thrown.
a. What is the maximum height of the ball and how far from where it was thrown does this occur?
b. How far does the ball travel horizontally before hitting the ground?
c. Graph the equation that models the ball's parabolic path.
The maximum height of the ball is 9.8 feet.
The distance the ball travels horizontally before hitting the ground is 2.
The graph that model the parabolic path is given below.
What is a parabolic path?Parabolic path is defined as the angle of trajectory of a projectile.
We have,
y = 0.4x² + 1.6x + 5 _____(1)
Where,
x = balls horizontal distance
y = height of the ball
To find the maximum height we need to differentiate y and set y = 0.
y' = 0
0.4 x (2x) + 1.6 + 0 = 0
0.8x + 1.6 = 0
-0.8x = -1.6
x = 1.6 / 0.8
x = 2
Now the maximum height of the ball is:
Put x = 2 in (1)
y = -0.4 x (2)² + 1.6 x (2) + 5
y = 0.4 x 4 + 3.2 + 5
y = 1.6 + 3.2 + 5
y = 9.8
The distance the ball travels horizontally before hitting the ground:
x = 2
The equation that models the ball's parabolic path is given below:
Thus,
The maximum height of the ball is 9.8 feet.
The distance the ball travels horizontally before hitting the ground is 2.
The graph that model the parabolic path is given below.
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Select the third function, y = 2 cos(x), and set the interval to [−4.02, 4.02]. (a) With 10 rectangles using left endpoints, how many rectangles are contributing negative area values to the estimated net area? Correct: Your answer is correct. How many are positive? Is this the same as when using midpoints? (b) What is the error when using midpoints with 10 subintervals? (Do not round your answer.)
(a) With 10 rectangles using left endpoints, 5 rectangles are contributing negative area values to the estimated net area. This means that the function is below the x-axis in those intervals.
The remaining 5 rectangles are contributing positive area values, as the function is above the x-axis in those intervals.
When using midpoints, the number of positive and negative rectangles may not be the same. It depends on the behavior of the function within each subinterval. The use of midpoints can result in a different distribution of positive and negative rectangles compared to using left endpoints.
(b) The error when using midpoints with 10 subintervals can be determined by calculating the difference between the estimated net area using midpoints and the actual net area.
To calculate the error, we need to evaluate the definite integral of the function over the given interval and subtract the estimated net area using midpoints.
Error = Actual Net Area - Estimated Net Area using Midpoints
Since the exact values are not provided, the specific error value cannot be determined without further information or calculations.
Using left endpoints with 10 rectangles, 5 rectangles contribute negative area values and 5 contribute positive area values. When using midpoints, the distribution of positive and negative rectangles may differ. The error when using midpoints can be calculated by subtracting the estimated net area using midpoints from the actual net area, but the exact error value cannot be determined without further information or calculations.
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answer in 15 minutes get 100 points+ brainliest
Solve for X
Answer:
x = 16
Step-by-step explanation:
To solve for x, use the Intersecting Secant-Tangent Theorem.
A tangent is a straight line that touches a circle at only one point.
A secant is a straight line that intersects a circle at two points.
Intersecting Secant-Tangent TheoremIf a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the length of the tangent segment is equal to the product of the length of the secant segment and the length of the external secant segment.
From inspection of the given diagram:
Tangent segment = 15Secant segment = x + 9External secant segment = 9Therefore, according to the Intersecting Secant-Tangent Theorem:
\(\begin{aligned}\textsf{(Tangent segment)}^2&=\textsf{(Secant segment)} \cdot \textsf{(External secant segment)}\\ 15^2&=(x+9) \cdot 9\end{aligned}\)
Solve the equation for x:
\(\implies 15^2=(x+9) \cdot 9\)
\(\implies 225=9x+81\)
\(\implies 225-81=9x+81-81\)
\(\implies 144=9x\)
\(\implies 9x=144\)
\(\implies 9x \div 9=144 \div 9\)
\(\implies x=16\)
Therefore, the value of x is 16.
Consider the function f(x) = 1x - 3 a. Find the inverse function off. f-'(x) = Use STACK interval notation for the following. For example, enter [12,00) as co(12, inf). b. What is the domain off-l? c. What is the range off-l?
a. To find the inverse function of f(x), we need to interchange the roles of x and y and solve for y. So, we have:
y = 1x - 3
x = 1y - 3
x + 3 = y
Therefore, the inverse function of f(x) is f^-1(x) = x + 3.
The domain of f^-1(x) is the range of f(x). Since f(x) = 1x - 3 is a linear function, its domain is all real numbers. Therefore, the range of f(x) is also all real numbers. In interval notation, we can write this as (-inf, inf).
The range of f^-1(x) is the domain of f(x). As we determined in part b, the domain of f(x) is all real numbers. Therefore, the range of f^-1(x) is also all real numbers. In interval notation, we can write this as (-inf, inf).
Hi! I'd be happy to help you with your question.
a. To find the inverse function of f(x) = 1x - 3, you can follow these steps:
1. Replace f(x) with y: y = 1x - 3
2. Swap x and y: x = 1y - 3
3. Solve for y: y = x + 3
So, the inverse function f^(-1)(x) = x + 3.
The domain of f^(-1) refers to the set of all possible x-values. Since the inverse function is a linear function with no restrictions, the domain of f^(-1) is all real numbers. In interval notation, this is written as (-∞, ∞).
c. The range of f^(-1) refers to the set of all possible y-values (output). Again, since it's a linear function with no restrictions, the range of f^(-1) is also all real numbers. In interval notation, this is written as (-∞, ∞).
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todos los numeros negativos son enteros verdadero o falsom.
Answer:
False
Step-by-step explanation:
numbers are integers, the integers are negative, zero and positive,
while natural numbers are only positive,
therefore the statement is false
. False. Integers comprise negative and positive numbers (...- 3, -2, -1, 0, 1, 2, 3 ...) and natural numbers only comprise positive integers (0, 1, 2, 3 ...)
HELP ASAPPPP 10 POINTS
C. (6 pts) Simple (Linear) and Serial Dilutions. For each, indicate the VOLUME of material you would need to take OUT of the stock solution, the amount of water that would be added to create the dilution AND the final concentration. Indicate units at every step. Write your answers on the lines provided
The amount of water added in each step is the dilution factor minus 1 times the volume of material taken out. The final concentration of the series is the product of the dilution factors of each step.
In simple (linear) and serial dilutions, the volume of material taken out of the stock solution, the amount of water added, and the final concentration are important factors to consider. The answers will be provided in the following paragraphs.
In simple (linear) dilutions, a known volume of the stock solution is removed and diluted with water to achieve the desired final concentration. To calculate the volume of material taken out of the stock solution, subtract the desired final volume from the initial volume. The amount of water to be added is equal to the final volume minus the volume of material taken out. The final concentration is determined by dividing the initial concentration by the final volume.
For serial dilutions, a series of dilutions is performed, each using the previous dilution as the new stock solution. The volume of material taken out of each dilution is determined by the desired dilution factor, which represents the ratio of the final concentration to the initial concentration. The amount of water added in each step is the dilution factor minus 1 times the volume of material taken out. The final concentration of the series is the product of the dilution factors of each step.
It's important to specify the units at every step to ensure accurate calculations and dilution procedures.
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What expression is equivalent to: 100
Answer:
10 x 10, 2 x 50
Step-by-step explanation:
PLEASE HELP!!!!! All my points Picture below
Answer:
19. 13
20. 6
21. 12
Step-by-step explanation:
Tina bought a painting while on vacation in 2009. The table below shows the value of the painting in2009,2010,and2011. If this trend continues, what will be the value of the painting in 2030?
Year: 2009, 2010, 2011
Value of painting: $75, $88.50, $104.43
A) $1,915.42
B) $2,044.19
C) $2,103.73
D) $2.279.55
E) $2,424,28
(The Year and value thing is a table, the first one listed on year goes with the first one listed on the value and so on)
Please help!!
Answer:
The answer is E
Step-by-step explanation:
We first are going to look at our first term on the table(the number that comes up first) which is $75.
Then we have to find the common factor. So, you divide the second number by the first number( 88.50 divided by 75 which gets us 1.18).
Now, since we found the first term and the common factor, we are going to have to find the exponent for our f(x) equation.
We know that she bought the painting in 2009! Now the problem is asking how much the painting will cost in 2030. So, you will subtract 2030-2009 which gets you 21! So 21 is your exponent!
Equation: F(x)= 75(1.18) ^21
The answer that you get is: $2424.28
Let me know if you have any questions!
:)
The value of the painting in 2030 would be $2424.28.
What is the value of the painting in 2030?From the given table, it can be observed that the painting increases in value over the years. Increase in value of the painting from 2009 to 2010 = ($88.50 / $75) - 1 = 18%.
The formula for determining the future value of the painting is:
FV = P (1 + r)^nm
FV = Future value
P = Present value
R = interest rate
N = number of years
The value of the painting in 2030 = $75 x (1.18)^21 = $2424.28
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Question
Find the surface area of the prism.
m2
Answer:
324 square meters
Step-by-step explanation:
Hey there!
The surface area of a shape is the area of all the surfaces added up
The side surface area is 48 since 16 x 3 is 48. Since there are two side areas, we need to multiply 48 x 2 is 96
Now we need to do this for the other sides
the bottom and top areas are 96 square meters each so we multiply 96 by 2 which is 192
The front and back faces have an area of 18 square meters so we multiply 18 by 2 since there are two faces which are 36
Now we add all the values: 96+192+36 which is 324
So the surface area of the prism is 324 square meters
Find m angle MOP if m angle MON =4x+9 and m angle MOP =3x-3
Answer:
33
Step-by-step explanation:
Measure of ∠MOP is equals to 71.7°.
What are supplementary angles?
" Supplementary angles are those angles whose sum is equals to 180°."
According to the question,
∠MOP = 3x - 3
∠MON = 4x + 9
As ∠MOP and ∠MON has common arm OM.
Therefore, ∠MOP and ∠MON are supplementary angles.
As per definition of supplementary angles we have
∠MON + ∠MOP = 180°
Substitute the value of ∠MOP and ∠MON we get,
4x + 9 + 3x - 3= 180°
⇒7x - 6 = 180°
⇒7x = 174
⇒ x = 24.9 (round off)
Substitute the value of x in measure of ∠MOP we get,
∠MOP = 3(24.9) -3
= 71.7°
Hence, measure of ∠MOP is equals to 71.7°.
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What is the usefulness of Cluster Analysis? What is Hierarchical
Clustering? Give examples.
Cluster analysis is a valuable tool in data analysis that helps identify hidden patterns and group similar objects or data points.
It is useful in various fields, such as market research, image analysis, customer segmentation, and anomaly detection. By clustering data, we can gain insights, make predictions, and improve decision-making. Hierarchical clustering is a specific approach to cluster analysis. It organizes data points into a hierarchy of clusters, where each cluster can contain subclusters. This method allows for a hierarchical structure that captures different levels of similarity or dissimilarity between data points.
For example, in customer segmentation, hierarchical clustering can group customers based on similar attributes like demographics, purchase history, and behavior. In image analysis, it can be used to segment images into meaningful regions or objects based on their visual characteristics. Hierarchical clustering offers a flexible and interpretable way to analyze complex datasets and discover underlying structures.
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Can someone please help me out with a small explanation thank you :)
Step-by-step explanation:
1 . when we collect like terms we only focus on the variables and the power of the variable I f exist so in this question the answer is 8x^2 because both have the same variable and same power or exponent.
2. one term is monomial
two terms is binomial
3. b
4. -9
5. c
the price for 5/6 l of liquid x is $80. what is the price per litre of liquid x
Answer:
$96.
Step-by-step explanation:
5/6 costs 80
Multiply both parts by 6/5:
5/6 * 6/5 ( = 1 ) costs 80 * 6/5
= 16 * 6
= $96.
NEED NOW What is an equation of the line that passes through the points (-7,7) and (3, 7)
Answer:
y=7
Step-by-step explanation:
Answer:
10
explanation
The y doesn't change so all you have to do is just count the distance from -7 to 3 easy :)
Aurora is planning to participate in an event at her school's field day that requires her to complete tasks at various stations in the fastest time possible. To prepare for the event, she is practicing and keeping track of her time to complete each station.
The x-coordinate is the station number, and the y-coordinate is the time in minutes since the start of the race that she completed the task.
(1, 4), (2, 8), (3, 16), (4, 32)
Part A: Is this data modeling a linear function or an exponential function? Explain your answer. (2 points)
Part B: Write a function to represent the data. Show your work. (4 points)
Part C: Determine the average rate of change between station 2 and station 4.
a. The data modelling the situation is an exponential function.
b. The definition of the exponential function is given as follows: y = 2(2)^x.
c. The average rate of change between station 2 and station 4 is of 4.
How to classify the function as exponential or linear?For a linear function, when x is increased by one, y is added by a constant.For an exponential function, when x is increased by one, y is multiplied by a constant.In this problem, we can see that when x is increased by one, y is multiplied by two, hence the function is exponential with a rate of change per day given as follows:
b = 2.
When x = 1, y = 4, hence the intercept a, which is the value of y when x = 0, is obtained as follows:
a = 4/2
a = 2.
Per each station, the average rate of change is of 2, hence for two stations, between station 2 and station 4, the average rate of change is given as follows:
2² = 4.
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90 seconds to 7 minutes as ratio in its simplest form
Answer:
3 seconds: 14 seconds
Step-by-step explanation:
90:7
let's turn everything into seconds
90:420
take the zero out
9:42
divide by 3
3:14
this is the simplest form
Answer:
simplest form is 3/14
Step-by-step explanation:
First we have to convert 7 into min
60× 7= 420
90/430 = 9/42
÷ 3= 3/14
Pls Mark me as the brainliestmath question please help 20 points
Answer:
option c is the correct ans...
Step-by-step explanation:
Plz mark it as brainliest...
Answer: C.
When you multiply exponential factors with the same base, you add the exponents. 3 + 8 = 11
Step-by-step explanation:
Elein and Naya wanted to meet between their houses at midpoint (4 , 1). If Elien’s house is at
point ( 10, -4).
Find the coordinates of Naya’s house.
find the solution set of 5x+7> 17.
Answer:
x > 2
Step-by-step explanation:
5x +7 > 17
5x > 10
x > 2
Answer:
the solution of the Awnser is (x | x>2)
Step-by-step explanation:
Let's solve your inequality step-by-step.
5x+7>17
Step 1: Subtract 7 from both sides.
5x+7−7>17−7
5x>10
Step 2: Divide both sides by 5.
5x5>105
x>2
Triangle weigh 6, how much does square weigh, this is a balanced hanger
Answer:
9
Step-by-step explanation:
set triangles as x and squares as y
x+3y=4x+y, now plug in 6 for each triangle
6+3y=4(6)+y, solve for the weight of the squares
3y-y=24-6
2y=18
y=9, each sqaure weighs 9 units