Critical numbers: 0, -3, 3
Increasing intervals: (-∞, -3), (3, ∞)
Decreasing intervals: (-3, 0), (0, 3)
Let's analyze the given function and find the critical numbers, as well as the intervals where it is increasing or decreasing.
Function: f(x) = x^2 / (x^2 - 9)
1. Find the critical numbers:
To find the critical numbers, we need to compute the first derivative of the function and set it equal to zero or identify where it's undefined.
f'(x) = (2x(x^2 - 9) - x^2(2x)) / (x^2 - 9)^2 = (2x^3 - 18x - 2x^3) / (x^2 - 9)^2 = -18x / (x^2 - 9)^2
Setting f'(x) equal to zero:
-18x = 0
x = 0
Now, let's check where f'(x) is undefined:
x^2 - 9 = 0
x = ±3
Thus, the critical numbers are 0, -3, and 3.
2. Find the open intervals where the function is increasing or decreasing:
To determine the intervals, we will examine the sign of f'(x) in the intervals determined by the critical numbers: (-∞, -3), (-3, 0), (0, 3), (3, ∞).
Interval (-∞, -3): Choose x = -4, then f'(-4) > 0. So, f(x) is increasing on this interval.
Interval (-3, 0): Choose x = -1, then f'(-1) < 0. So, f(x) is decreasing on this interval.
Interval (0, 3): Choose x = 1, then f'(1) < 0. So, f(x) is decreasing on this interval.
Interval (3, ∞): Choose x = 4, then f'(4) > 0. So, f(x) is increasing on this interval.
Your answer:
Critical numbers: 0, -3, 3
Increasing intervals: (-∞, -3), (3, ∞)
Decreasing intervals: (-3, 0), (0, 3)
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1. A triangle, △DEF, is given. Describe the construction of a circle with center C circumscribed about the triangle. (3-5 sentences)
2. ⊙O and ⊙P are given with centers (−2, 7) and (12, −1) and radii of lengths 5 and 12, respectively. Using similarity transformations on ⊙O, prove that ⊙O and ⊙P are similar
Answer: Finally, translate the circles back to their original positions. This will not change their similarity. Therefore, ⊙O and ⊙P are similar.
Step-by-step explanation:
To construct a circle circumscribed about triangle △DEF, follow these steps:
Draw the perpendicular bisectors of the sides of the triangle. Each bisector should intersect the opposite side of the triangle at a point.
Find the point of intersection of any two perpendicular bisectors. This point is the center of the circle.
Measure the distance from the center to any of the vertices of the triangle. This distance is the radius of the circle.
Draw the circle with the center and radius found in the previous steps. The circle should pass through all three vertices of the triangle.
To prove that ⊙O and ⊙P are similar using similarity transformations, follow these steps:
Translate both circles so that their centers coincide with the origin. This will not change their relative positions.
Scale one of the circles by a factor equal to the ratio of the radii of the two circles. This will make the two circles have the same size.
Since both circles are centered at the origin and have the same size, they must be similar. This is because any two circles with the same size are either congruent or similar.
Finally, translate the circles back to their original positions. This will not change their similarity. Therefore, ⊙O and ⊙P are similar.
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It takes Fena Tailoring 3 hr of cutting and 6 hr of sewing to make a tiered silk organza bridal dress. It takes 6 hr of cutting and 3 hr of sewing to make a lace sheath bridal dress. The shop has at most 30 hr per week available for cutting and at most 33 hr per week for sewing. The profit is ?$330 on an organza dress and ?$190 on a lace dress. How many of each kind of bridal dress should be made each week in order to maximize? profit? What is the maximum? profit?
Answer :The maximum profit is $1,650 when making 5 organza dresses and no lace dresses per week.
Explanation:
Let x represent the number of organza dresses, and y represent the number of lace dresses.
The time constraint for cutting:
3x + 6y ≤ 30
The time constraint for sewing:
6x + 3y ≤ 33
The profit function to maximize is:
P(x, y) = 330x + 190y
Using these constraints,
3x + 6y ≤ 30
6x + 3y ≤ 33
x ≥ 0
y ≥ 0
Optimal solution:
The corner points of the feasible region are (0,0), (0,5), (3,3), and (5,0). Calculate the profit for each point:
P(0,0) = 0
P(0,5) = 950
P(3,3) = 1,320
P(5,0) = 1,650
The maximum profit is $1,650 when making 5 organza dresses and no lace dresses per week.
Can you help me with this question step by step.
Answer:
32
Step-by-step explanation:
There are 28 full shaded squares
There are 8 half squares
2 half squares make up 1 full square
So 28 + 4 = 32
Area is 32 units
(1 point) Consider the series , where (82? + 4)11"+2 In this problem you must attempt to use the Ratio Test to decide whether the series converges. Compute L = lim N. 0, Enter the numerical value of the limit Lif it convergen, INF if the limit for L diverges to Infinity, MINF if it diverges to negative intinity, or DIV if it diverges but not to Infinity or negative Infinity LE Which of the following statements is true? A. The Ratio Test says that the series converges absolutely B. The Ratio Test says that the series diverges. C. The Ratio Test says that the series converges conditionally. D. The Ratio Test is inconclusive, but the series converges absolutely by another test or tests. E The Ratio Test is inconclusive, but the series diverges by another test or tests. F. The Ratio Test is inconclusive, but the series converges conditionally by another test or tests. Enter the letter for your choice here:?
The correct answer is F.
How to find the convergence or divergence of a series?To apply the Ratio Test, we need to compute:
L = lim(n → ∞) |a(n+1)/a(n)| = lim(n → ∞) |(8(2n+3) + 4)/(8(2n+1) + 4)|
Dividing numerator and denominator by 8(2n+3), we get:
L = lim(n → ∞) |(1 + 1/(2n+3))/(1 + 1/(2n+1))|
As n → ∞, both fractions approach 1, so the limit simplifies to:
L = lim(n → ∞) 1 = 1
Since L = 1, the Ratio Test is inconclusive. We cannot say anything about the convergence or divergence of the series from this test alone.
Therefore, the correct answer is F. The Ratio Test is inconclusive, but the series may converge conditionally by another test or tests.
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if tanA=squareroot3-1/squareroot3+1,prove that cosA=squareroot3+1/2squareroot2.
The exact value of the trigonometric function is cos θ = (√3 + 1) / 2√2.
How to find the exact value of a trigonometric function
In this problem we find the exact value of a trigonometric function, from which we need to determine the exact value of another trigonometric function. This can be done by using definitions of trigonometric functions:
tan θ = y / x
cos θ = x / √(x² + y²)
Where:
x - Leg adjacent to an angle.y - Leg opposite to an angle.θ - Angle.If we know that y = √3 - 1 and x = √3 + 1, then the exact value of the other trigonometric function is:
cos θ = (√3 + 1) / √[(√3 + 1)² + (√3 - 1)²]
cos θ = (√3 + 1) / √(3 + 2√3 + 1 + 3 - 2√3 + 1)
cos θ = (√3 + 1) / √8
cos θ = (√3 + 1) / 2√2
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Find the value of X of the circle
The circle's x value will continue to be the same as the arc ST. So, x has a value of 40 degrees.
What is circle?A circle's centre is the point from which all of the distances to the other points on the circle are equal. The radius of the circle is the measurement at issue.
Every point on a circle is a geometric shape that is equally separated from the centre.
The location of any point that is evenly separated from the fixed point known as the circle's centre can also be characterised as it.
The distance from any point on a circle to the centre is known as the radius of the circle.
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Solve the following inequality for r. Write your answer in simplest form. -5r - 2(-10r - 9)<=-6r + 8 - 9
Distribute on the left side:-5r + 20r + 18 ≤ -6r - 1
Combine like term on the left side:15r + 18 ≤ -6r -1 (Add 6 to both sides)21r + 18 ≤ -1 (Subtract 18 from both sides)21r ≤ -1921r/21 ≤ -19/21 (Divide by 21)Get Solution r ≤ -19/21Solution:r ≤ -19/21
What is the approximate length, in inches of the scrap wood when they are, placed end to end
Answer:
D. 53
Step-by-step explanation:
To calculate total length, just add all those lengths:
5.5 + 6 + (6.5 x 3) + (7 x 2) + 8
5.5 + 6 + 19.5 + 14 + 8
11.5 + 19.5 + 14 + 8
31 + 14 + 8
45 + 8
53
C C
A student believes that a certain number cube is unfair and is more likely to land with a six facing up. The student rolls
the number cube 45 times and the cube lands with a six facing up 12 times. Assuming the conditions for inference
have been met, what is the 99% confidence interval for the true proportion of times the number cube would land with a
six facing up?
0. 27 2. 58
0. 221-0. 27)
45
0. 7342. 33
0. 731-0. 73)
45
0. 27 2. 33
0. 271 -0. 20)
45
0. 73 +2. 58
0. 73(10. 73)
45
Mix
Save and Exit
The answer is option B: (0.221-0.27).
Using the formula for a confidence interval for a proportion:
p± z*√(p(1-p)/n)
where p is the sample proportion (12/45 = 0.267), z* is the z-score for the desired confidence level (99% corresponds to a z-score of 2.576), and n is the sample size (45).
Substituting the values, we get:
0.267 ± 2.576*√(0.267(1-0.267)/45)
which simplifies to:
0.267 ± 0.195
Therefore, the 99% confidence interval for the true proportion of times the number cube would land with a six facing up is (0.072, 0.462).
So the answer is option B: (0.221-0.27).
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The function h is given by h(x)=log_2(x^2 -6). For what positive value of x does h(x)=4?
The function h is given by h(x)=log2(x² -6). The positive value of x that makes h(x) equal to 4 is approximately 4.69
We have the function:
h(x) = log2(x² - 6)
We want to find the value of x that makes h(x) equal to 4:
h(x) = 4
log2(x² - 6) = 4
We can rewrite this equation as:
2⁴ = x² - 6
16 = x² - 6
x²= 22
x = √22 (because we are looking for a positive value of x)
Therefore, the positive value of x that makes h(x) equal to 4 is approximately 4.69 (rounded to two decimal places).
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A hotel offers two activity packages. One costs $192 and includes 3h of horseback riding and 2h of parasailing. The second costs $213 and includes 2h of horseback riding and 3h of parasailing. What is the cost for 1h of each activity?
Answer:
Step-by-step explanation:
Step-by-step explanation:
let's assumed that
x = 1h of horseback
y = 1h of parasailing
3h of horseback = 3x
2h of parasailing = 2y
and
2h of horseback = 2x
3h of parasailing = 3y
if
3x + 2y = 192
2x + 3y = 213
to find y we have to remove the x
(3x + 2y = 192) × 2
(2x + 3y = 213) × 3
6x + 4y = 384
6x + 9y = 639
___________ -
-5y = -255
y = 51
substitute y to any equation to find x
3x + 2y = 192
3x + 2(51) = 192
3x + 102 = 192
3x = 192 - 102
3x = 90
x = 30
so the answers are 1h of horseback = $30 and 1h of parasailing = $51
#CMIIWWhat are the 2 terms that are associated with input?
The two terms that are commonly associated with input are input device and input data.
Input Bias are essential factors of computer systems as they enable druggies to interact with the machine and give data or information that the computer processes to produce affair. There are several types of input bias, each designed to feed to specific requirements and conditions. For illustration, a keyboard is a common input device used to input textbook and commands, while a microphone is used to input audio data.
Input data, on the other hand, can come in colorful forms and formats. It can be entered manually by a stoner or automatically collected by detectors, bias, or other systems. Input data can also be stored in colorful train formats, similar as textbook, audio, videotape, images, or databases. It's reused by the computer system using algorithms, software programs, and tackle factors to induce affair data, results, or conduct.
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The square pyramid has a base with an area of 64 cm and a slant height of 9 cm. What is the height of the pyramid
To find the height of the square pyramid, we will use the Pythagorean theorem. Given the area of the base is 64 cm² and the slant height is 9 cm, let's first find the side length of the base.
Since it's a square, the area of the base is side length squared (s²). Therefore, s² = 64 cm². Taking the square root of both sides, we get s = 8 cm.
Now, let the height be h and use the Pythagorean theorem with the side length (8 cm) and the slant height (9 cm):
h² + (s/2)² = (slant height)²
h² + (8/2)² = 9²
h² + 4² = 81
h² + 16 = 81
h² = 65
Taking the square root of both sides:
h = √65 cm ≈ 8.06 cm
The height of the pyramid is approximately 8.06 cm.
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Jill has $1275.00 in her savings account. When she opened her account, she had $300.
Every week she deposited $75.00. How many weeks did it take to earn $1275.00?
Answer:
It took 13 weeks for Jill to get 1275.00 in her savings account
Step-by-step explanation:First off you subtract 1275-300=975.After that you will divide 975 from 75 975÷75=13.So 13 is your final answer.
which angle is adjacent to TOU
COMPARE BY USING <,>,=,<=,>=
The product of the middle two sums is greater than or equal to the product of the least and the greatest of the sums.
How can the two products be compared?To compare two products, we need to compare the values of the products using the comparison operators (<, >, <=, >=, or =).
We can start by finding the sums of the original numbers (0, 1, 2, 3):
Sum of the original numbers = 0 + 1 + 2 + 3 = 6
Now, we add the number k to each of the numbers:
Sum of the new numbers = (0 + k) + (1 + k) + (2 + k) + (3 + k)
= (0 + 1 + 2 + 3) + 4k
= 6 + 4k
So, the new sums range from 6 + 4k (the smallest) to 9 + 4k (the largest).
The product of the least and the greatest of the sums is:
(6 + 4k) × (9 + 4k) = 54 + 60k + 16k^2
The product of the middle two sums is:
(7 + 4k) × (8 + 4k) = 56 + 60k + 16k^2
Comparing the two products using the comparison operators:
54 + 60k + 16k^2 < 56 + 60k + 16k^2 (since 54 < 56)
or
54 + 60k + 16k^2 <= 56 + 60k + 16k^2 (since the products are equal when k=0)
In conclusion, the product of the middle two sums is greater than or equal to the product of the least and the greatest of the sums.
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Help please! solve problem in the photo
Check the picture below.
[tex]6^2=[4+(2x+5)](4)\implies 36=(9+2x)(4)\implies \cfrac{36}{4}=9+2x \\\\\\ 9=9+2x\implies 0=2x\implies \cfrac{0}{2}=x\implies 0=x~\hfill \stackrel{ 2(0)+5 }{{\Large \begin{array}{llll} GH=5 \end{array}}}[/tex]
Find (A) f'(x). (B) the partition numbers for f', and (C) the critical numbers of f. f(x) = x³ - 75x - 2 (A) f'(x)= (B) Find the partition numbers for f' Select the correct choice below and, if necessary, fill in the answer box to complete your choice A. The partition number(s) is/are x = (Use a comma to separate answers as needed) B. There are no partition numbers (C) Find the critical numbers for f. Select the correct choice below and, if necessary, fill in the answer box to complete your choice A. The critical number(s) is/are x = (Use a comma to separate answers as needed) B. There are no critical numbers
The critical numbers of f are x = -5 and x = 5.
(A) To find the derivative f'(x), we differentiate f(x) = x³ - 75x - 2 with respect to x:
f'(x) = 3x² - 75
(B) There are no partition numbers for f' as partition numbers are related to integer partitions, which are not applicable in this context.
(C) To find the critical numbers of f, we set f'(x) equal to 0 and solve for x:
3x² - 75 = 0
x² = 25
x = ±5
So the critical numbers of f are x = -5 and x = 5.
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And 7/8 hours Greg reads 2/3 chapters. What is the unit rate in chapters per hour? Write your answer in simplest form
The unit rate for chapters per hour is calculated as 16/21
How to find the unit rateIn order to find the unit rate for the number of chapters Gregory reads in an hour, we must firstly divide the total amount of chapters read by the amount of hours devoted to the activity:
= 2/3 chapters ÷ 7/8 hours
= 2/3 chapters × 8/7 hours
= 16/21 chapters per hour
Consequently, the unit rate for chapters per hour is calculated as 16/21, which already exists in its most simplified form.
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Answer this question please
This question can be answered as follows:
-4 + 12 = 8
How to answer the questionTo answer this question, we can begin by searching for the number whose addition to -4 will yield 8 and the answer is 12. To determine the answer, we can first begin by assigning the figure x to the unknown variable. Thus, we will have:
-4 + x = 8
We collect like terms:
x = 8 + 4
= 12
So, the number that when added to -4 will yield 8, is 12. So, to find a missing number, we assign it a variable and equate to the specified end result.
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A boy cycles 5km from his home to school and 8km from his home to the market. The chief's camp is closer to the boys home than the market but further than the school. Write a compound inequality to show the distance from the boys home to the chief's camp.
A compound inequality to show the distance from the boys home to the chief's camp is 5 < d < 8
How to explain the inequalityThe distance from the boy's home to the school is 5km.
The distance from the boy's home to the market is 8km.
The chief's camp is closer to the boy's home than the market, but further than the school
The chief's camp is closer to the boy's home than the market, so the distance from the boy's home to the chief's camp is less than 8km.
Putting these together, we can write a compound inequality to show the possible distances d from the boy's home to the chief's camp:
distance from home to school < distance < home to maket
5 < d < 8
The inequality is 5 < d < 8.
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Larijah is creating a circular board game with a spinner with four regions that players use to determine what happens on their turns. she wants to meet these requirements: - exactly a quarter of the circle should contain the ""lose a turn"" region. - ""move one space"" should be three times the angle as ""move two spaces"". - ""move two spaces"" should be twice the angle as ""trade places with any opponent"". what is the measure of the ""trade places with any opponent"" region?
The measure of the trade places with any opponent region is 30°
Let the measure of the trade places with any opponent = x
Move two space is twice the angle as trade places with any opponent
Move two space = 2x
Move one space is three times the angle as moving two spaces
Move one space = 3(2x)
Move one space = 6x
Lose your turn is a quarter
Lose your turn = 90°
The sum of a complete angle = 360°
90 + x + 2x + 6x = 360°
9x = 360 - 90
9x = 270
x = 30
The measure of the trade places with any opponent region is 30°
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Answer Immeditely Please
Answer:
it's ither 1 2 or 4 I'm still thinking but I'm pretty sure it's one of those answers
if y=x^2+2x-5 for -3<=x<=3 then which of the following sets is the range of y
The range of the equation y = x² + 2x -5 where -3 ≤ x ≤ 3 is [-3,10]
The function is y = x² + 2x -5
Domain of x is [-3,3]
By putting the value of x = -3
y = (-3)² + 2(-3) - 5
y = 9 - 6 -5
y = -2
Minimum possible value is -2
And by putting the value of x = 3
y = 3² + 2(3) -5
y = 9 + 6 -5
y = 10
Maximum possible value is 10
The value of y ranges between -2 ≤ y ≤ 10
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The question is incomplete the complete question is :
If y = = x² + 2x -5 for -3 ≤ x ≤ 3 then what will be the range of y ?
Pls help I really need help on this
The operations that results in a rational numbers are C + D, A · B and C · D.
How to obtain a rational number from combining irrational numbersIn this problem we must determine what operations between irrational numbers are equivalent to a rational number. Real numbers are result of the union between rational and irrational numbers. We need to check if each operation is equivalent to a rational number:
Case 1: A + B
A + B = √3 + 2√3 = 3√3 (Irrational)
Case 2: C + D
C + D = √25 + √16 = 5 + 4 = 9 (Rational)
Case 3: A + D
A + D = √3 + √16 = √3 + 4 (Irrational)
Case 4: A · B
A · B = √3 · 2√3 = 2 · 3 = 6 (Rational)
Case 5: B · D
B · D = 2√3 · √16 = 2√3 · 4 = 8√3 (Irrational)
Case 6: C · D
C · D = √25 · √16 = 5 · 4 = 20 (Rational)
Case 7: A · A
A · A = √3 · √3
A · A = 3 (Rational)
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Tara earns $8. 50 an hour (after taxes) at the pizza place. She is scheduled to work four hours this afternoon. However, her friend Kayla called and asked her if she wants to go to the movie. A ticket to the movie costs $9. 50. In addition, she always spends about $7 on snacks
The following statement which are true are Kayla's opportunity cost to go to the movie is $9.50 and Tara's total cost of attending the movie is $50.5, option B, D.
Tara earns $8.50 per hour
She is scheduled to work for 4 hours
Total earnings=$8.50 × 4
=$34
Tara's opportunity cost of attending the movie instead of working is $34
Since, a ticket cost $9.50
And she always spend about $7 on snacks
Tara's total cost of going to the movies = opportunity cost of attending the movie + cost of tickets + cost of snacks
=$34 + $9.50 + $7
=$50.5
Opportunity cost refers to the cost of satisfying a want at the expense of another want. It can also be called REAL COST or TRUE COST.
Therefore,
2. Kayla's opportunity cost to go to the movie is $9.50
4. Tara's total cost of attending the movie is $50.5
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Complete question:
Tara earns $8.50 an hour (after taxes) at the pizza place. She is scheduled to work four hours this afternoon. However, her friend Kayla called and asked her if she wants to go to the movie. A ticket to the movie costs $9.50. In addition, she always spends about $7 on snacks.
Which of the following statement are true? Select all that apply.
1. Tara's opportunity cost if she goes to work instead of the movie is $34.
2. Kayla's opportunity cost to go to the movie is $9.50.
3. There is no opportunity cost for Tara to go to the movie.
4. Tara's total cost of attending the movie is $50.5
5. Tara's opportunity cost if she goes to the movie instead of working is $34
A negatively charged balloon moves close to another balloon. They then repel each other. What can be said about the other balloon? (2 points)
A: Both balloons have a positive charge.
B: It has a negative charge.
C: The balloon is uncharged.
D: There is a positive charge.
The repulsion between two negatively charged objects is an indication that the other object must be negatively charged. Thus, the correct answer is B: It has a negative charge.
This is due to the fact that like charges repel each other, while opposite charges attract each other. In this case, the negatively charged balloon repels the other balloon, indicating that the other balloon is also negatively charged. So, the correct answer is B).
The other options are incorrect. Option A is incorrect because both balloons cannot be positively charged as they would attract each other, not repel. Option C is incorrect because an uncharged object would not repel a negatively charged object. Option D is incorrect because a positively charged object would attract the negatively charged balloon, not repel it.
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You are buying fabric to make a patio umbrella in the shape of a regular hexagon. The res fabric costs $s. 75 per square yard and the white fabric costs $2i50 per square yard. You can only order whole numbers of square yards of fabric. What will be the cost of the fabric
The cost of the fabric will be $55.63.
To find the cost of the fabric, you need to first determine the total area of the fabric needed to make the patio umbrella. Since the patio umbrella is in the shape of a regular hexagon, it can be divided into six congruent equilateral triangles. The formula for the area of an equilateral triangle is A = (sqrt(3)/4)*s^2, where s is the length of one side of the hexagon.
Let's assume the length of one side of the hexagon is x. Then the area of one of the equilateral triangles is A = (sqrt(3)/4)x^2. Since there are six of these triangles in the hexagon, the total area of the hexagon is 6A = 6(sqrt(3)/4)*x^2 = (3sqrt(3)/2)*x^2.
To determine the amount of orange fabric needed, you can multiply the area of the hexagon by the number of square yards in one square foot and round up to the nearest whole number of square yards. Similarly, you can do the same for the white fabric.
Let's say the hexagon has a side length of 6 feet, so x=6ft. Then the area of the hexagon is (3sqrt(3)/2)*(6ft)^2 = 93.53 square feet. Converting square feet to square yards gives 10.39 square yards. Therefore, you need to order at least 11 square yards of each fabric.
The cost of the orange fabric is $s. 75 per square yard, so 11 square yards will cost 11 * $s. 75 = $28.13. The cost of the white fabric is $2.50 per square yard, so 11 square yards will cost 11 * $2.50 = $27.50. Therefore, the total cost of the fabric will be $28.13 + $27.50 = $55.63.
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I need this answer asap!!! Willa can cover 13. 5m squared with 3L of paint and complete the table using equivalent ratios.
13. 5sqaured to 3
? to1
? to 10
The completed table of equivalent ratios would be:
13.5 square meters : 3 liters of paint
4.5 square meters : 1 liter of paint
45 square meters : 10 liters of paint.
To find the missing ratios, we need to set up proportions using the given information.
13.5 square meters is covered by 3 liters of paint, so we can write:
13.5/3 = ?/1
To solve for the missing ratio, we can cross-multiply:
13.5 x 1 = 3 x ?
? = (13.5 x 1) / 3
? = 4.5
So, 4.5 square meters can be covered by 1 liter of paint.
To find the last missing ratio, we can use the same method:
13.5/3 = ?/10
10 x 13.5 = 3 x ?
? = (10 x 13.5) / 3
? = 45
So, 45 square meters can be covered by 10 liters of paint.
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Suppose that your foot length L in inches is related to your height h in inches by L=(3/4)h^0. 5
In one (non-leap) year, you have a growth spurt in which you grow from 64 inches to 69 inches. For simplicity of modeling, assume that your height changes at a constant rate throughout the year. What was the fastest rate of growth that your foot experienced during this time?
Answer for inch/year. Three digits after the decimal points after round off.
The fastest rate of growth that the foot experienced during the year is approximately 0.554 inches/year.
We can use the given relationship between foot length L and height h to determine the rate of change of foot length with respect to time. Taking the derivative of L with respect to time t, we have dL/dt = (3/4) * 0.5 * h^(-0.5) * dh/dt. We can then substitute the given values of L and h at the beginning and end of the growth spurt to find dh/dt.
At the start, h = 64 inches and L = (3/4) * 64^0.5 = 9 inches. At the end, h = 69 inches and L = (3/4) * 69^0.5 = 9.89 inches.
Solving for dh/dt, we have dh/dt = 2.4 inches/year. Substituting this value into the expression for dL/dt, we get dL/dt = (3/4) * 0.5 * 69^(-0.5) * 2.4 = 0.554 inches/year (rounded to three decimal places). Therefore, the fastest rate of growth that the foot experienced during the year is approximately 0.554 inches/year.
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