f(x) has an inflection point at x = 1.
How to find inflection point?We can use the third derivative to determine the concavity near x = 1. Since f'''(1) > 0, we know that f''(x) is increasing near x = 1.
If f''(x) is increasing near x = 1, then f'(x) must be decreasing or increasing less quickly near x = 1. Therefore, we can conclude that the concavity of f(x) is changing from down to up near x = 1, which means that there is a point of inflection at x = 1.
Therefore, we can conclude that f(x) has an inflection point at x = 1.
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if the length of a rectangle in terms of x is x^2+2x-3 and its width is 2x^2+3x+5, what is the perimeter of this rectangle?
perimeter: ___units
Step-by-step explanation:
perimeter=(L+W)2
L=x^2+2x-3
W=2x^2+3x+5
(x^2+2x-3+2x^2+3x+5)2
(x^2+2x^2+2x+3x-3+5)2
(3x^2+5x+2)2
p=(6x^2+10x+4)units
kevin has 5-cent coins, 10-cent coins, and 25-cent coins. he needs exactly 90 cents. what is the fewest number of coins kevin can use to make exactly 90 cents?
The fewest number of coins that Kevin can use to make exactly 90 cents is six coins: three 25-cent coins and three 5-cent coins.
To determine the fewest number of coins that Kevin can use to make exactly 90 cents, we need to consider the values of the coins and how they can add up to 90 cents. We want to use the fewest number of coins possible, so we should start with the highest-value coins first. In this case, the highest-value coin is the 25-cent coin.
Since Kevin needs exactly 90 cents, he could use three 25-cent coins, which would give him 75 cents. He would then need 15 more cents to make 90 cents. The only coins that he has left are 5-cent coins and 10-cent coins. If he were to use two 10-cent coins, he would have to use three 5-cent coins to make up the remaining 5 cents, for a total of five coins. However, if he uses three 5-cent coins instead of two 10-cent coins, he will have used six coins in total, which is the fewest number of coins possible. Therefore, the fewest number of coins that Kevin can use to make exactly 90 cents is six coins: three 25-cent coins and three 5-cent coins.
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Combine the like terms -6m + 4m. Simplify your answer
Answer:
-2m
Step-by-step explanation:
-6m + 4m
Combine like terms by performing the operation between the coefficients. In this case, one must add the different coefficients, yet since one of the coefficients is negative, then adding the two coefficients is the same as subtracting the two terms.
-6m + 4m
= -2m
I NEED HELP ON THIS ASAP!!
Therefore, the area of triangle XYZ is 2 square units.
What is area?Area is a measure of the size of a two-dimensional shape or surface. It is defined as the amount of space inside the boundary of a flat or planar figure, such as a triangle, square, rectangle, or circle. The unit of area is typically square units, such as square meters (m²), square feet (ft²), or square centimeters (cm²).
Here,
To determine the area of triangle XYZ with coordinates (6,1), (2,5), and (10,9), we can use the formula for the area of a triangle:
Area = (1/2) * base * height
where the base is any side of the triangle and the height is the perpendicular distance from the base to the opposite vertex.
Distance between (6,1) and (2,5):
= √((6 - 2)² + (1 - 5)²)
= √(20)
So, the base of the triangle is √(20).
We can use the formula for the distance between a point and a line to do this:
Distance from (10,9) to line passing through (6,1) and (2,5):
= |(10 - 6)(5 - 1) - (2 - 6)(9 - 1)| / √((5 - 1)² + (6 - 2)²)
= 4 / √(20)
So, the height of the triangle is 4 / √(20).
Now, we can plug in the values for the base and height into the formula for the area of a triangle:
Area = (1/2) * base * height
= (1/2) * √(20) * (4 / √(20))
= 2
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what expressions from the table are equivalent to that expression ?
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The applicable rules of exponents are ...
\(\displaystyle\sqrt[n]{x^m}=x^{\frac{m}{n}}\\\\(x^a)^b=x^{ab}\\\\(xy)^a=x^ay^a\)
GIVING BRAINLIEST! EASY MATH!!
Answer: 4
Step-by-step explanation:
Answer:
800 bacteria
Step-by-step explanation:
yw<3
x - 2 = Y
Y = -2/3x + 3
Answer: (3,1) in point form x=3,y=1
Step-by-step explanation:
the price of a notebook has risen to $3.95 today. Yesterdays price was $3.45.Find the percentage increase. round your answer to the nearest tenth of a percent
Answer:
The formula for relative change is x = 100 * (final - initial) / initial Using this concept, we can plug in our values. x = (3.95 - 3.45) / 3.45 = 0.5. 0.5 * 100 = 14.49%. Rounded to the nearest tenth would give us the value 14.5%.
Step-by-step explanation:
In an effort to cut costs and improve profits, any US companies have been turning to outsourcing. In fact, according to Purchasing magazine, 54% of companies surveyed outsourced some part of their manufacturing process in the past two to three years. Suppose 555 of these companies are contacted. What is the probability percentage that 338 or more companies outsourced some part of their manufacturing process in the past two or three years? Round the percent to two decimal places.
Answer:
Step-by-step explanation:
This is a binomial probability distribution because there re only 2 possible outcomes. It is either a surveyed company outsourced some part of their manufacturing process in the past two to three years. The probability of success, p would be that a randomly selected company x, outsourced some part of their manufacturing process in the past two to three years. From the information given, p = 54/100 = 0.54
Number of success, x = 338
Number of samples, n = 555
We want to determine the probability that 338 or more companies outsourced some part of their manufacturing process in the past two or three years which is expressed as
P(x ≥ 338)
From the binomial probability calculator,
P(x ≥ 338) = 0.0006
The percentage is 0.0006 × 100 = 0.06%
Write the decimal as a fraction in simplest form.
5. -18.04
Answer: - \(\frac{451}{25}\)
Step-by-step explanation:
Could someone explain
Answer:
top one =75
bottom one=65
Step-by-step explanation:
all angles should equal to 180
so 180-40=140
the sum of th eother two angles will be 140
so 4x-5+3x+5=140
now solve for x
x=20
subsitute for x
4(20)-5=75
3(20)+5=65
please mark brainliest if correct
There are 40 working hours in a week and 52 weeks a year. How much does Nate need to make an hour to stay out of debt if it costs him $900 to live each month?
Answer: $5.19
Step-by-step explanation:
If there are 40 working hours in a week and 52 weeks in a year, 40 * 52 should be the amount of working hours in a year.
40 * 52 = 2080 working hours
Nate needs $900 to live each month and there are 12 months in a year, so $900 * 12 would equal how much he spends per year.
$900 * 12 = $10800
Divide $10800 by 2080 working hours to get how much he needs to make per working hour.
10800/2080 = approximately 5.19, rounded down from the nearest hundredth
He needs to make $5.19 per hour, so the answer is the last option.
Convert the following equation
into slope intercept form.
3x + y = -3
Answer: y = -3x -3
Step-by-step explanation:
y = mx + b
3x + y = -3
y = -3x -3
Answer:
slope intercept form: y=mx+c
*m = gradient
*c = y-intercept
3x + y = -3
y = -3x - 3
just B please
A) In this problem, use the inverse Fourier transform to show that the shape of the pulse in the time domain is \[ p(t)=\frac{A \operatorname{sinc}\left(2 \pi R_{b} t\right)}{1-4 R_{b}^{2} t^{2}} \]
The pulse shape p(t) in the time domain can be found using the inverse Fourier transform of its Fourier transform P(f). The pulse shape is given by p(t) = A sinc(2πRb t)/(1 - 4Rb^2t^2).
To find the pulse shape p(t) in the time domain, given its Fourier transform P(f), we can use the inverse Fourier transform. Specifically, we can use the formula: p(t) = (1/2π) ∫ P(f) e^(j2πft) df, where the integral is taken over all frequencies f.
In this problem, the Fourier transform of the pulse shape p(t) is given by:
P(f) = A rect(f/Rb) = A rect(f/2Rb) * e^(-jπf/Rb)
where rect(x) is the rectangular function defined as 1 for |x| ≤ 1/2 and 0 otherwise.
To evaluate the integral, we can split the rectangular function into two parts, one for positive frequencies and one for negative frequencies:
P(f) = A rect(f/2Rb) * e^(-jπf/Rb) = A/2Rb [rect(f/2Rb) - rect(f/2Rb - 1/(2Rb))] * e^(-jπf/Rb)
We can then substitute this expression into the inverse Fourier transform formula to obtain:
p(t) = (1/2π) ∫ A/2Rb [rect(f/2Rb) - rect(f/2Rb - 1/(2Rb))] * e^(-jπf/Rb) e^(j2πft) df
Now, we can evaluate the integral using the properties of the rectangular function and the complex exponential:
p(t) = A/2Rb [(1/Rb) sinc(2Rbt) - (1/Rb) sinc(2Rb(t-1/(2Rb)))]
where sinc(x) is the sinc function defined as sinc(x) = sin(πx)/(πx).
Simplifying this expression, we get:
p(t) = A sinc(2πRb t)/(1 - 4Rb^2t^2)
Therefore, we have shown that the shape of the pulse in the time domain is given by:
p(t) = A sinc(2πRb t)/(1 - 4Rb^2t^2)
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Dalton received a $4.0 million cash flow and deposited the money in a guaranteed interest account that pays 7.5% APR, compounded monthly. What is the maximum size, equal withdrawal that Dalton can make each month over the next 30 years to achieve a zero balance after 20 years? $25,000.00 $27,968.58 $28,223.75 $35,622.96
The maximum size of the equal withdrawal that Dalton can make each month over the next 30 years to achieve a zero balance after 20 years is approximately $27,968.58.
To calculate the maximum withdrawal amount, we need to consider the present value of the cash flow and the future value of the monthly withdrawals. Since the goal is to have a zero balance after 20 years, the present value of the cash flow should be equal to the future value of the monthly withdrawals.
Using the formula for future value of an ordinary annuity, we can calculate the monthly withdrawal amount. Given a cash flow of $4.0 million, an APR of 7.5% compounded monthly, and a time period of 20 years, we can determine the future value of the withdrawals.
By solving for the monthly withdrawal amount, we find that Dalton can make a maximum withdrawal of approximately $27,968.58 each month over the next 30 years to achieve a zero balance after 20 years. This ensures that the present value of the initial cash flow is equal to the future value of the withdrawals.
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Do this photos plisssssssss
the first question answer is 15/17
Find f (h(-5))
f (x) 9x - 5
g(x) - 3x
h(x) 2x2
Your answer:
hi
You are making f ° h
f(x) = 9x-5
h(x) = 2x²
You must first calculate h(-5) : so remplace x by -5 in h :
h(-5) = 2 (-5)² = 2* 25 = 50
then apply f(x) to result : f(50) = 9 *50 -5 = 450 -5 = 445
Paul has four paper strips of the same length. He glues two of them together with 4 cm overlap, and the new strip is 36 cm long. He wants to make a 30cm long strip with the other two strips how long should the overlap be?
Answer:
maybe the answer ris 36×4 and then 30×4 and subtract the result?!?!
Which of the following inequalities are correct?
A - 2/3 < - 1/3
B. 0 > - 2/3
C. - 1/3 < -2/3
\(\text{In order for an inequality to be correct, the inequality has to be TRUE}\\\\\text{When we look at answer choice A, we see that -2/3 is less than -1/3}\\\text{This is true because -1/3 is closer to 0 on the number line, making it bigger}\\\text{than -2/3}\\\\\text{When we look at answer choice B, 0 is greater than -2/3. This is true}\\\text{because 0 is bigger than -2/3, since -2/3 is on the negative side}\\\\\text{When you look at answer choice C, -1/3 is less than -2/3. This is not}\\\)
\(\text{true because -2/3 is not bigger than -1/3, since -1/3 is closer to 0.}\\\\\text{Therefore, answer choices A and B should be correct}\)
-5(X+2)=-20
How do I solve for x
Answer:
x = 2
Step-by-step explanation:
-5(x + 2) = -20
-5x - 10 = -20
-5x = -20 + 10
-5x = -10
x = -10/-5
x = 2
Answer:
Step-by-step explanation:
-5(x+2)=-20
-5x -10=-20
-5x=-10
x=2
Find the distance from the vector (1, 2, 3, 4) to the
subspace of R^4 spanned by the vectors (1, −1, 1, 0) and (3, 2, 2,
1).
The distance from the vector (1, 2, 3, 4) to the subspace of R^4 spanned by the vectors (1, -1, 1, 0) and (3, 2, 2, 1) can be calculated as the length of the orthogonal projection of (1, 2, 3, 4) onto the subspace.
To find the distance, we first need to determine the orthogonal projection of the vector (1, 2, 3, 4) onto the subspace spanned by (1, -1, 1, 0) and (3, 2, 2, 1).
The orthogonal projection of (1, 2, 3, 4) onto the subspace can be obtained by projecting (1, 2, 3, 4) onto each of the spanning vectors and then summing those projections. Using the projection formula, we find that the projection of (1, 2, 3, 4) onto the first spanning vector (1, -1, 1, 0) is (5/3, -5/3, 5/3, 0), and the projection onto the second spanning vector (3, 2, 2, 1) is (3/2, 1, 1, 1/2).
Next, we calculate the difference vector between (1, 2, 3, 4) and the sum of the two projections: (1, 2, 3, 4) - [(5/3, -5/3, 5/3, 0) + (3/2, 1, 1, 1/2)] = (2/6, 13/6, 7/6, 7/2).
Finally, we find the length of the difference vector, which represents the distance between (1, 2, 3, 4) and the subspace: √[(2/6)^2 + (13/6)^2 + (7/6)^2 + (7/2)^2] = √(242/9).
Therefore, the distance from the vector (1, 2, 3, 4) to the subspace of R^4 spanned by (1, -1, 1, 0) and (3, 2, 2, 1) is √(242/9).
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Omega House Family restaurant is midway between Forsyth Tech Community College
and the Dash baseball stadium. The coordinates of Forsyth Tech are (7, −5) and the
coordinates of the Dash baseball stadium are (−4, 3). What are the coordinates of the
Omega House?
The coordinates of Omega house is (3/2, 1)
Data;
Forsyth Tech = (7,-5)Stadium = (-4, 3)Midpoint of a LineTo find the coordinates of Omega house, we can use the formula of midpoint of a line since Omega house falls between Forsyth Tech and Stadium
\(x,y = (\frac{x_1+ x_2}{2} , \frac{y_1+y_2}{2})\)
We can substitute the values and solve for both x and y coordinates.
\(x = \frac{x_1+x_2}{2} \\x = \frac{7 + (-4)}{2} = \frac{3}{2}\)
The value of the y-coordinate is
\(y = \frac{-5+ 3}{2} = 1\)
The coordinates of Omega house is (3/2, 1)
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The value, in dollars, of a particular painting can be calculated using the equation y - 15x + 250, where x represents years. What is the
meaning of the y-intercept of the equation?
A. The value of the painting increases $15 each year.
B. The value of the painting increases $250 each year.
C. The initial value of the painting is $250.
D. The total value of the painting is $265.
PLEAAE HELP IM CONFUSED AND NEED A GOOD GRADE
Answer: the initial value of the painting is 250
Step-by-step explanation:
Answer: d
Step-by-step explanation:
The right part of a figure is shown. The left part of this figure is missing. Line j is a line of symmetry. Which choice shows the left part of the figure?
Answer: The one on the bottom right.
Step-by-step explanation:
Symmetry is basically like a mirror. The line of symmetry is the exact point where it starts to reflect.
A symmetrical shape can also be folded onto itself equally.
Looking at the photo, the picture on the bottom right is the left part of the figure.
HELP ME ASAP!!!!!!!
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Answer:
3hours and 30 minutes moving and 2 and a half hours stationary
Step-by-step explanation:
1 hour + 30 minutes + 1 hour + 30 minutes + 30 minutes for moving
1 hour + 1 hour + 30 minutes for stationary.
The average age of three children in the Smith family is 11. If the first two children are 14 and 12, how old is the youngest child?
Answer: 7
Step-by-step explanation:
If the average is 11
the number has to add up to 33 which is divisible by 3 and give you the average 11
14+12= 26
14+12=26/2=13
13- 6= 7
14+ 12 + 7= 33/3= 11
19.Archaeologists found a structure that was 39 feet long and 8 feet deep, with a well nearby and a drain along one side. How was it likely used
The structure appears to have served as a storage facility or warehouse, based on its design and layout.
The structure, measuring 39 feet in length and 8 feet in depth, along with the presence of a nearby well and a drain along one side, suggests that it served as a storage facility or warehouse. The dimensions of the structure indicate that it was spacious enough to store a significant quantity of goods.
The well nearby would have provided a convenient water source for various purposes, such as cleaning or processing items stored in the structure.
The drain along one side could have been used to dispose of any excess water or waste generated during the storage activities. Overall, the combination of size, proximity to a water source, and the presence of a drain indicates that the structure was likely utilized for storage purposes.
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americium-241 is widely used in smoke detectors. calculate the amount of americium-241 consumed in a smoke detector (initially containing 4.50 µg of am), in micrograms, that has been used for one year if the half-life is 433 years.
The amount of americium-241 consumed in a smoke detector, initially containing 4.50 µg, after one year can be calculated to be approximately 0.0104 µg.
The decay of americium-241 over time can be modeled using the radioactive decay formula:
A(t) = A₀ * (1/2)^(t / T₁/₂)
where:
A(t) is the amount of americium-241 remaining after time t,
A₀ is the initial amount of americium-241,
t is the time elapsed,
T₁/₂ is the half-life of americium-241.
In this case, the initial amount of americium-241 is 4.50 µg, and the half-life is 433 years. We want to calculate the amount remaining after one year.
Substituting the given values into the decay formula:
A(1 year) = 4.50 µg * (1/2)^(1 / 433)
Calculating this expression:
A(1 year) ≈ 4.50 µg * 0.998005
A(1 year) ≈ 4.492 µg
Therefore, the amount of americium-241 consumed in the smoke detector after one year is approximately 4.50 µg - 4.492 µg ≈ 0.0104 µg.
After one year, approximately 0.0104 µg of americium-241 would be consumed in a smoke detector initially containing 4.50 µg of americium-241, considering its half-life of 433 years.
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If the farmer has 116 feet of fencing, what are the dimensions of the region with the largest area?
Answer:29 ft by 58 ft
Step-by-step explanation:
A ball is thrown directly upward from a height of 7 ft with an initial velocity of 28 ft/sec. The function s(t)= -16t+28t+7 gives the height of the ball, in feet, t seconds after it has been thrown. Determine the time at which the ball reaches the maximum height and find the maximum height.
Answer:
Brainliest Answer?
( 7 / 8 ) seconds
( 77 / 4 ) feet
Step-by-step explanation:
The question is a bit confusing but I will do it both ways. I will assume that you made a mistake copying over the function because the graph s( t ) is linear. Linear functions have a maximum value of infinity because it is an odd-degree polynomial.
AlgebraAssume that s( t ) = - 16t² + 28t + 7;
The equation forms an upside-down parabola which means it has a maximum value.
Complete the square to get the axis of symmetry and the maximum value of the parabola or use my very cool formula. The variables h and k represent the axis and max respectively.
Formulaax² + bx + c = a( x - h )² + k;
ax² + bx + c = a( x - ( - b / 2a ) )² + c - ( b² / 4a );
Completing the Squareax² + bx + c;
Take a as a factor.
a( x² + ( b / a )x + ( c / a ) );
Add and subtract the square of ( 1 / 2 ) of ( b / a ). This is called completing the square because it forms a perfect square trinomial.
a( x² + ( b / a )x + ( b / 2a )² - ( b / 2a )² + ( c / a ) );
Factorise the trinomial.
a( ( x + ( b / 2a ) )² - ( b / 2a )² + ( c / a ) );
Use the distributive property of multiplication.
a( x + ( b / 2a )² + a( ( c / a ) - ( b / 2a )² );
a( x + ( b / 2a )² + a( ( c / a ) - ( b² / 4a² ) );
Simplify the fractions.
a( x + ( b / 2a )² + c - ( b² / 4a );
SolutionSubstitute the values.
- 16( t - ( - 28 / 2( - 16 ) )² + 7 - ( ( 28 )² / 4( - 16 ) );
Time is the x-axis so we need to solve for the axis of symmetry.
h = ( - 28 / 2( - 16 ) );
h = ( - 28 / - 32 );
Simplify the fraction.
h = ( 7 / 8 );
Maximum height is the parabola's y of the vertex.
k = 7 - ( ( 28 )² / 4( - 16 ) );
k = 7 - ( ( 28 )( 28 ) / - 64 );
k = 7 - ( 784 / - 64 );
k = 7 - ( - 49 / 4 );
k = ( 28 / 4 ) + ( 49 / 4 );
k = 77 / 4;