Rolle’s Theorem can be applied to the closed interval.
What is the Rolle’s Theorem?
In essence, Rolle's theorem or Rolle's lemma argues that there must be at least one stationary point—a position where the first derivative is zero—between any two separate sites where a real-valued differentiable function achieves equal values. The theorem bears Michel Rolle's name.
Here, we have
Given: f(x) = -x² + 3x, [0,3]
We must determine whether Rolle’s Theorem can be applied to the closed interval.
f(x) is continuous in the closed interval [0,3].
f(x) is differentiable in the open interval (0,3)
f(0) = 0 + 0 = 0
Rolle's theorem can be applied.
f'(x) = -2x + 3
f'(x) = 0
-2x + 3 = 0
3 = 2x
x = 2/3
2/3 lies inside the [0,3].
Hence, Rolle’s Theorem can be applied to the closed interval.
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construct a right-angled isosceles triangle whose equal side measure 2 cm
A construction of a right-angled isosceles triangle whose equal side measure 2 cm is shown in the image attached below.
What is an isosceles right triangle?In Mathematics, an isosceles right triangle can be defined as a type of right-angled triangle in which two (2) of its side lengths are equal and one of its angle is a right angle.
What are the steps for the construction of a right-angled isosceles triangle?Generally speaking, the steps that are required for the construction of a right-angled isosceles triangle include the following:
You should draw a line segment, with line AB equal to 2 cm (AB = 2cm).At point A, draw an angle with a measure of 90 degrees (90°).You should draw an arc of radius from point A in order to intersect the perpendicular drawn at point A at the point C.You should join point A and point B.In conclusion, triangle ABC (ΔABC) is the required right-angled isosceles triangle as shown in the image attached below.
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using the least-squares regression line, calculate the predicted value and residual value for the data point where the non-native grass biomass is equal to 35 and the coastal sage scrub biomass is equal to 20. give your answers precise to three decimal places.
By using the least-squares regression line the equation will be y = 1.518x + 0.305.
Let us find the value of slope and y-intercept that suits the data y = mx + b
And then , we have to find the value of x² ,∑x,∑y,∑x²,∑xy also N
Then, we have to calculate the slope m
m = n∑(xy) - ∑x ∑y / n ∑(x²) - (∑x)²
= 5 X 236 -26 X 41 / 40 - 676
= 249 / 164
= 1.5183
Then , we hace to calculate the intercept b
b = ∑y - m∑x / n
= 41 - 1.5183 X 26 / 5
= 0.3049
After this we have to assemble it in the equation of line
y =mx + b
Therefore ,
y = 1.518x + 0.305
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Use the formula C C = 2pi * r and pi = 3 . 14 to find the circumference of a circle with a radius of 5 meters.
Answer:
Circumference of circle = 31.4 square meter
Step-by-step explanation:
Given:
Radius of a circle = 5 meter
Value of π = 3.14
Find:
Circumference of circle using formula "2πr"
Computation:
Circumference of circle = 2πr
By putting value of 'r' and 'π' in given formula
Circumference of circle = 2(3.14)(5)
Circumference of circle = (6.28)(5)
Circumference of circle = 31.4 square meter
CAN SOMEONE HELP WITH THIS QUESTION?
Answer:
39 1/3 = 118/3 square units
Step-by-step explanation:
You want the area under the curve y = -x² +9x on the interval [3, 5].
IntegralThe fundamental theorem of calculus tells us the integral of the function will be its anti-derivative. That is, for f(x) = -x² +9x, we want the function F(x) whose derivative is f(x). The reverse of the power rule for derivatives can be used:
\(F(x)=-\dfrac{x^3}{3}+9\dfrac{x^2}{2}\)
AreaThe area of interest is ...
F(5) -F(3) = -1/3(5³ -3³) +9/2(5² -3²) = -98/3 +72
F(5) -F(3) = 39 1/3
The area under the curve between x=3 and x=5 is 39 1/3 square units.
Point of intersections=
12a
A boy is standing on the very edge of a cliff that is 58.8 m high. The boy throws a rock straight up in the air at 7.36 m/s. (a) What is the rock's velocity when it hits the ground? (use up as the positive direction)
How long (from the time it was thrown) will it take for the rock to hit the ground?
What is the total distance traveled by the rock?
Answer:
The exact same from when it went up
Step-by-step explanation:
it never said the rock was thrown at a angle besides directly up and the boy didn't move so it hit his head
Graph the linear function using slope intercept form
y=2x+6
PRE-ACTIVITIES/PRE-TEST
5. A tyF
ASK #1
Directions: Draw a star (★) if the statement
lescribes the effects of typhoons and a circle (•) if it is not. Write your answers
1 your notebook.
a. less
b.fror
c.gre
d.gr
(P
th
U
1. The farmers' crops are destroyed when there are heavy rains which
result to flooding.
2. Loss of lives and damage to properties happen due to fiooding and
landslides
3. Thousands of families become homeless.
4. Fishermen can go fishing and abundant catch awaits them.
5. The power supply is cut off for several days as falling trees destroy the
electric posts and power lines.
6. People lose their homes and means of livelihood.
7. The prices of basic commodities become cheaper.
8. People visit malls for shopping.
9. A few houses of first-class materials are partially damaged,
10. Children play on the playground.
Answer:
Step-by-step explanation:
★1. The farmers' crops are destroyed when there are heavy rains which
result to flooding.
★2. Loss of lives and damage to properties happen due to fiooding and
landslides
★3. Thousands of families become homeless.
•4. Fishermen can go fishing and abundant catch awaits them.
★5. The power supply is cut off for several days as falling trees destroy the
electric posts and power lines.
★6. People lose their homes and means of livelihood.
•7. The prices of basic commodities become cheaper.
•8. People visit malls for shopping.
•9. A few houses of first-class materials are partially damaged,
•10. Children play on the playground.
Can some please help me with this would you rather problem.
Problem: Would you Rather buy one get a second 25% off or buy two get third 50% off.
Please explain how you solved this in R.A.C.E
Answer:
I would rather buy one and get the second 25%off
Step-by-step explanation:
during the winter olympics the us curling team scored 2 points more than the canadian team. the canadian curling team scored 4 points more than the norwegian team. altogether the three teams scored a total of 208 point. how many points did the canadian team scored?
Answer:
70 points
Step-by-step explanation:
u = US points
c = Canadian points
n = Norwegian points
u = c + 2
n = c - 4
208 = u + c + n
208 = ( c + 2 ) + c + ( c - 4 ) = 3c - 2
Isolate c:
208 = 3c - 2
210 = 3c
c = 70
10. Hank bought a four-family residence for rental property. Hank put 20% down on the $300,000 rental unit. How much will he be able to depreciate
using the class recovery period for residential rental property each year?
A. $9,809.09
O B. $15,609.09
O C. $11,893.09
D. $10,909.09
Mark for review Will be highlighted on the review page)
Answer:
D. $10,909.09
Step-by-step explanation:
The class recovery period for residential rental property each year = 27.5 years
The cost basis for the residential property = $300,000
The amount he will be able to depreciate
= Cost basis/ Number of years
= $300000/ 27.5 years
=$10, 909.090909
Approximately ≈ $10,909.09
The amount he will be able to depreciate using the class recovery period for residential rental property each year is: D. $10,909.09.
Using this formula
Depreciation=Rental unit amount/ MACRS residential rental property recovery period
Where:
Rental unit amount=$300,000
MACRS Residential rental property recovery period=27.5 years
Let plug in the formula
Depreciation=$300,000/27.5
Depreciation=$10,909.09
Inconclusion the amount he will be able to depreciate using the class recovery period for residential rental property each year is: D. $10,909.09.
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PLEASE HELP
A busy candy stores going to replace their current gumball machine with a giant gumball machine. The globe on the current gumball machine is 22 inches in diameter and the volume is 5575 in.³ compared to what has been ordered the current gumball machines volume is 532 in.³ less than 1/4 of the volume of the globe of the giant gumball machine.
3. Carry out your plan from question to what is the volume of the globe on the new gumball machine you can round your final answer to the nearest whole number. Be sure to check your work.
4. Is your answer to question through the real solution or an extraneous solution explain how you?
3. The volume of the new gumball machine is of 861.75 in³.
4. This is a real solution, as it is a positive number.
How to obtain the volume of the new machine?The volume of the old machine was of:
5575 in.³
(as stated in the problem)
The volume of the new machine is obtained as follows:
532 in.³ less than 1/4 of the volume of the globe of the giant gumball machine.
One fourth of the volume of the old machine is obtained as follows:
1/4 x 5575 in³ = 1393.75 in³.
532 in.³ less than that is obtained as follows:
1393.75 - 532 = 861.75 in³.
An extraneous volume is a negative value to the volume, as the volume cannot be negative. Since the number is positive, it represents a real solution.
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A portfolio manager generates a 5% return in Year 1, a 12% return in Year 2, a negative 6% return in Year 3, and a return of 2% (nonannualized) in the first quarter in Year 4. The annualized return for the entire period is the closest to __________.
The annualized return for the entire period is the closest to 10.5%.
To calculate the annualized return for the entire period, we need to consider the returns for each year and the return in the first quarter of Year 4. Since the returns are given for each period, we can use the geometric mean to calculate the annualized return.
The formula for calculating the geometric mean return is:
Geometric Mean Return = [(1 + R1) * (1 + R2) * (1 + R3) * (1 + R4)]^(1/n) - 1
Where R1, R2, R3, and R4 are the returns for each respective period, and n is the number of periods.
Given the returns:
Year 1 return: 5% or 0.05
Year 2 return: 12% or 0.12
Year 3 return: -6% or -0.06
First quarter of Year 4 return: 2% or 0.02
Using the formula, we can calculate the annualized return:
Annualized Return = [(1 + 0.05) * (1 + 0.12) * (1 - 0.06) * (1 + 0.02)]^(1/3) - 1
Annualized Return = (1.05 * 1.12 * 0.94 * 1.02)^(1/3) - 1
Annualized Return = 1.121485^(1/3) - 1
Annualized Return ≈ 0.105 or 10.5%
Therefore, the annualized return for the entire period is approximately 10.5%.
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Solve for x.
(x - 2)² = 2
The value of x is 4 and 0
What is basic algebra ?Algebra is a branch of mathematics that helps translate real-world problems or situations into mathematical formulas. Mathematical operations like addition, subtraction, multiplication, and division as well as variables like x, y, and z are needed to construct a valid mathematical expression. Coordinate geometry, calculus, and trigonometry are just a few of the mathematics topics that involve algebra. A simple algebraic equation is 2x + 4 = 8. Algebraic expressions are the result of performing operations on variables and constants, such as addition, subtraction, multiplication, division, etc. Consider that James and Natalie came up with the notion to arrange matchsticks into numerical patterns when they were fiddling with them.
Given that : \((x-2)^{2} = 2\)
\((x-2)^{2} = 2\)
(x-2)=±2
x= 4
x=0
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Scott paid 10.47 for a 6.08 - kg bag of dog food. A few weeks later, he paid 13.88 for a7.48 -kg bag at a different store. Find the unit price for each bag. Then state which bag is the better buy based on the unit price. Round your answers to the nearest cent.
Answer:
Scott paid $ 1.72 per kilo for the first bag, and $ 1.85 per kilo for the second bag, with which the best buy is the first bag.
Step-by-step explanation:
Since Scott paid 10.47 for a 6.08-kg bag of dog food, while a few weeks later, he paid 13.88 for a7.48-kg bag at a different store, to find the unit price for each bag, and then state which bag is the better buy based on the unit price, the following calculation must be performed:
10.47 / 6.08 = X
1.72 = X
13.88 / 7.48 = X
1.85 = X
Thus, Scott paid $ 1.72 per kilo for the first bag, and $ 1.85 per kilo for the second bag, with which the best buy is the first bag.
how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a pound
Answer:
4
Step-by-step explanation:
1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);
2. using the previous item it is possible to write the next equation:
5(x+20)=4*20+10*x; ⇒ x=4.
3. the required mass is 4 pounds.
Need the answer ASAP
Answer:
63
Step-by-step explanation:
To find the area of a trapezoid you have to use the formula
a+b/2 h
So we would substitute them
3 + 15 / 2 x 7
Which would equal
63
Hope this helps :)
Select ALL TRUE statements
A) There are no zeroes
B) There is one zero
C) There are two zeroes
D) The vertex is (1, 14)
E) The vertex is (14, 1)
F) The vertex is (2, 14)
G) The vertex is (14, 2)
H) The axis of symmetry is x = 1
I) The axis of symmetry is x = 2
J) The "a" of the parabola is positive
K) The "a" of the parabola is negative
M) The parabola has a minimum
N) The parabola has a maximum
O) The zeroes are -2 and 6
P) The zeroes are 1 and 6
Q) The zero is 6
R) The zero is 14
Answer:
The correct statements are:
A) There are no zeroes
D) The vertex is (1, 14)
H) The axis of symmetry is x = 1
J) The "a" of the parabola is positive
M) The parabola has a minimum
Therefore, the options B, C, E, F, G, I, K, N, O, P, Q, and R are all false.
Step-by-step explanation:
Step-by-step explanation:
Remember that, this is quadratic function graph.
Let's analyze fact the graph. We get :
There are two roots/zeroes
Two roots are x1 = -2 , x2 = 6
Vertex is maximum value of parabola (2,14)
Symmetry function is x = 2 (you can show that, x-axis from vertex)
"a" parabola indicated negative
The parabola with "a" negative, thus have maximum value (show that vertex is (2,14))
Conclusion :
The true statements are C,F,I,K,N,O (6 statements are shown)
Subject : Mathematics
Level : JHS
Chapter : Quadratic Functions
I need assistance please.
Your Assignment
Mr. Paulsen challenges Olivia and Angelica to move figure ABCDE onto figure A"B"C"D"E" using a series of two different transformations. They give two different answers.
Answer the questions to investigate ways to transform ABCDE.
1. Olivia finds a combination of two different transformations that moves ABCDE onto A"B"C"D"E". What is one way she might have done this? (3 points)
2. Angelica reflects ABCDE over the y-axis and translates it up 8 units. Does her transformed figure match A"B"C"D"E"? If not, describe how her transformed figure compares to A"B"C"D"E". (3 points)
3. Michael says he can move ABCDE onto A"B"C"D"E" with one transformation by translating ABCDE diagonally so that it moves 8 units up and 10 units right. Is he correct? Explain why or why not. (4 points)
One way Olivia might have moved ABCDE onto A"B"C"D"E" is by first reflecting ABCDE over the x-axis, and then translating it 4 units to the left and 6 units down.
1) This would map point A to A", B to B", C to C", D to D", and E to E", creating A"B"C"D"E".
2) Angelica's transformation does not result in a figure that matches A"B"C"D"E". Reflecting ABCDE over the y-axis would map point A to A", B to E", C to D", D to C", and E to B", so the shape would be flipped horizontally. Translating it up 8 units would then shift the shape up, but it would still be horizontally flipped, so it would not match A"B"C"D"E".
3) Michael's claim is not correct. Translating ABCDE diagonally 8 units up and 10 units right would move point A to point J, which is not on A"B"C"D"E". The other points would also not be in their correct positions, so the resulting shape would not match A"B"C"D"E". To get to A"B"C"D"E" with one transformation, Michael would need to use a combination of translation, rotation, and/or reflection.
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According to the food label on a box cookies, each box has 16
servings and each sering contains 4 cookies. The weight of the
ba of cookies is Kilogroms. What is the weight of each
cooke?
I cant help you but I can give you the equation: 16 x 4 x weight per cookie = answer
Step-by-step explanation:
did you forget to write the whole question?
which of the following are solutions to the quadratic equation check all that apply x ^ 2 + 10x + 25 = 2
Answer:
to solve the equation you first need to bring it to factors and by doing that you first need to let the equation equal 0 hence you need to minus 2 on both sides of the equation therefore
x^2 + 10x + 25 - 2 =2 - 2
therefore
x^2 + 10x +23 = 0
now since the equation cannot be factored, we use the formula.
x= \(\frac{-b +- \sqrt{b^{2}-4ac } }{2a}\)
where
a=1
b=10
c=23
note we use the coefficients only.
therefore x = \(\frac{-10 -+ \sqrt{10^{2}-4(1)(23) } }{2(1)}\)
=\(\frac{-10-+\sqrt{100-92} }{2}\)
=\(\frac{-10-+\sqrt{8} }{2}\)
then we form two equations according to negative and positive symbols
x=\(\frac{-10+\sqrt{8} }{2} or x =\frac{-10-\sqrt{8} }{2}\)
therefore x = \(-5+\sqrt{2}\) or x=\(-5-\sqrt{2}\)
NO LINKS!! URGENT HELP PLEASE!!!
11. Write the equation for the graph
This is the same as writing y = sqrt(4(x+5)) - 1
===============================================
Explanation:
The given graph appears to be a square root function.
The marked points on the curve are:
(-4,1)(-1,3)(4,5)Reflect those points over the line y = x. This will have us swap the x and y coordinates.
(-4,1) becomes (1,-4)(-1,3) becomes (3,-1)(4,5) becomes (5,4)Recall the process of reflecting over y = x means we're looking at the inverse. The inverse of a square root function is a quadratic.
----------
Let's find the quadratic curve that passes through (1,-4), (3,-1) and (5,4).
Plug the coordinates of each point into the template y = ax^2+bx+c.
For instance, plug in x = 1 and y = -4 to get...
y = ax^2+bx+c
-4 = a*1^2+b*1+c
-4 = a+b+c
Do the same for (3,-1) and you should get the equation -1 = 9a+3b+c
Repeat for (5,4) and you should get 4 = 25a+5b+c
We have this system of equations
-4 = a+b+c-1 = 9a+3b+c4 = 25a+5b+cUse substitution, elimination, or a matrix to solve that system. I'll skip steps, but you should get (a,b,c) = (1/4, 1/2, -19/4) as the solution to that system.
In other words
a = 1/4, b = 1/2, c = -19/4
We go from y = ax^2+bx+c to y = (1/4)x^2+(1/2)x-19/4
----------
Next we complete the square
y = (1/4)x^2+(1/2)x-19/4
y = (1/4)( x^2+2x )-19/4
y = (1/4)( x^2+2x+0 )-19/4
y = (1/4)( x^2+2x+1-1 )-19/4
y = (1/4)( (x^2+2x+1)-1 )-19/4
y = (1/4)( (x+1)^2-1 )-19/4
y = (1/4)(x+1)^2- 1/4 - 19/4
y = (1/4)(x+1)^2 + (-1-19)/4
y = (1/4)(x+1)^2 - 20/4
y = (1/4)(x+1)^2 - 5
The equation is in vertex form with (-1,-5) as the vertex. It's the lowest point on this parabola. Placing it into vertex form allows us to find the inverse fairly quickly.
----------
The last batch of steps is to find the inverse.
Swap x and y. Then solve for y.
y = (1/4)(x+1)^2 - 5
x = (1/4)(y+1)^2 - 5
x+5 = (1/4)(y+1)^2
(1/4)(y+1)^2 = x+5
(y+1)^2 = 4(x+5)
y+1 = sqrt(4(x+5))
y = sqrt(4(x+5)) - 1
I'll let the student check each point to confirm they are on the curve y = sqrt(4(x+5)) - 1.
You can also use a tool like GeoGebra to verify the answer.
An aircraft (at Z) is spotted by two observers (at X and Y) who are L = 1050 feet apart. As the
airplane passes over the line joining them, each observer takes a sighting of the angle
elevation to the plane, as indicated in the figure. If A = 30 degrees and B = 40 degrees how high is the
airplane?
If the angle elevation to the plane A = 30 degrees and B = 40 degrees , then the Airplane is 359.11 feet high .
In the question ,
it is given that
the distance between the two observer = 1050 feet
the measure of angle A is = 30°
the measure of angle B is = 40°
By angle sum property angle C is = 180 - (30 + 40)
= 180 - (70)
= 110
By Sine Law .
Sin(110)/1050 = Sin(30)/a = Sin(40)/b
Using , Sin(110)/1050 = Sin(30)/a ,
we get ,
Sin(110)/1050 = 0.5/a
a = 558.69
Using Sin(110)/1050 = Sin(40)/b
b = 718.24
By using Sine Law
Sin(40)/h = Sin(90)/558.69
h = 359.11
Therefore , If A = 30 degrees and B = 40 degrees , then the Airplane is 359.11 feet high .
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During one month, 4/10 of Lake Okeechobee is covered in a harmful algal bloom. By the next month, Lake Okeechobee is 90% covered. By how many times does the algal bloom increase?
If 4/10 of Lake Okeechobee is covered in a harmful algal bloom in the first month, then 6/10 of the lake is not covered in the bloom.
In the second month, if 90% of the lake is covered in the bloom, then 10% of the lake is not covered in the bloom.
Since the amount of the lake that is covered by the bloom increased from 4/10 to 9/10, this is an increase of:
(9/10) / (4/10) = (9/10) x (10/4) = 2.25 times
Therefore, the algal bloom increased by 2.25 times.
For positive acute angles A and B, it is known that cos A = 11/61 and sin B = 3/5. Find the value of cos (A+B) in simplest form.
The value of cos (A+B) in simplest form is -136/305.
The standard formula for the cosine of the sum of two angles is:
cos(A+B) = cos A cos B - sin A sin B
We are given that cos A = 11/61 and sin B = 3/5. We can use this information to find the values of sin A and cos B by using the Pythagorean identity:
sin^2 A +\(cos^2\)A = 1 => sin A = \(\sqrt(1 - cos^2\) A)
cos^2 B + \(sin^2\) B = 1 => cos B = \(\sqrt(1 - sin^2 B)\)
Substituting the given values, we get:
sin A =\(\sqrt(1 - (11/61)^2) ~~ 60/61\)
cos B = \(\sqrt(1 - (3/5)^2) = 4/5\)
Now we can use these values to find the cosine of the sum of the angles:
cos(A+B) = cos A cos B - sin A sin B
= (11/61)(4/5) - (60/61)(3/5)
= (44/305) - (36/61)
= (44 - 180)/305
= -136/305
Note that since A and B are positive acute angles, A+B is also an acute angle, which means that its cosine is negative.
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pls helppp this is so confusinggg
Answer: .025
Step-by-step explanation: we first have to find the distance between each term we divide 12/5 by 6 you have to change it into multiplication so you invert is to 12/5 times 1/6 you then get 12/30 you reduce that to become 2/5 if you want to test this to make sure it is right then you can. you then use a formula but I can't remember it so then you can just multiply it several times to find the answer. you get the answer by round from the thousandths
Line segment AB is equal to 40cm. What is the length of the middle part in terms of x?
Answer:
Step-by-step explanation:
40/30=409
a. What is computer?
Answer:
Computer Is An Electronic Device.
Step-by-step explanation:
It Is A Electronicdevice Which Accept Inputs From the user and And display The Out Put.
suppose y varies directly as x, and y=48 when x=6. find x when y=72.
Using the constant of proportionality the value of x when y is 72 is 9.
What is a COP?
The ratio between two quantities that are directly proportional is the constant of proportionality. When two quantities grow and shrink at the same rate, they are directly proportional.
If y varies directly as x, it means that y can be expressed as a constant multiple of x, i.e., y = kx, where k is the constant of proportionality.
To find k, we can use the given information that y = 48 when x = 6 -
y = kx
48 = k(6)
k = 8
Now that we know k, we can use it to find x when y = 72 -
y = kx
72 = 8x
x = 9
Therefore, when x = 72, the value of x = 9.
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If leah has 22 boxes she gives 12 boxes to her mom how many boxes does leah have left
Subtract the amount she gives her mom from the total amount she has:
22 - 12 = 10
She has 10 boxes left.