It would take Ofelia 1 hour to type a 3-page paper at her current typing rate.
. Given that Ofelia typed 3/5 of a page in 1/5 hour, we can determine her typing rate. To do so, we can divide the amount of work completed (3/5 of a page) by the time it took (1/5 hour):
(3/5) / (1/5) = 3 pages/hour
This means Ofelia's typing rate is 3 pages per hour. Now, we need to find out how many hours it would take her to type a 3-page paper at this rate. We can use the formula:
Time = Work / Rate
Here, the work is the 3-page paper, and the rate is 3 pages/hour. Plugging in the values:
Time = 3 pages / 3 pages/hour = 1 hour
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Work the following problem using the table. Choose the correct answer.
Currency on hand = 5,000 Italian lira
Currency desired = United States dollars
How many United States dollars based on Wednesday quotation? $
Based on the Tuesday rate, $100 United States dollars is equal to 843.64 French francs.
One hundred US dollars are equivalent to 834.3664 French francs at the exchange rate on Tuesday. Accordingly, you can swap eight hundred forty-three point 64 years old French francs for every one hundred dollars in the United States.
1. From the tables, the Tuesday rate is 0.119 US dollars to 1 French franc.
2. To find the exchange rate, multiply the number of US dollars by the exchange rate: 100 x 0.119 = 11.90.
3. To find the amount in French francs, divide the US dollars by the exchange rate: 11.90 / 0.119 = 843.64 French francs. Based on the Tuesday rate, $100 United States dollars is equal to 843.64 French francs.
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3 of the digits of the 6-digit number A=4*9*6* are missing. Fill in the missing digits so that A is the least possible number that is divisible by 495. Submit the number A as your answer. A=? PLS HELP. I'LL GIVE BRAINLIEST!!
The 6-digit number A is 419065.
To find the least 6-digit number A that is divisible by 495, we need to follow these steps:
Step 1: Find the prime factors of 495.
495 = 3 × 3 × 5 × 11 = 3^2 × 5 × 11
Step 2: Determine the lowest 6-digit number divisible by the prime factors.
The lowest 6-digit number is 100000, so we find the next multiple of 495 above 100000.
100000 ÷ 495 ≈ 202.02
The next integer value is 203, so:
203 × 495 = 100485
Step 3: Substitute the given digits (4, 9, and 6) into the 6-digit number.
The least 6-digit number divisible by 495 is 100485. To make A the smallest possible number, we will place the given digits in the following order: 4, 9, and 6. The missing digits in A are 1, 0, and 5.
So, the 6-digit number A is 419065.
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Factor the trinomial 9x² 18x +9 9x² - 18x + 9 = (Ax − B)² 9? where A is and B is
The trinomial expression when factored is (3x - 3)² & A = 3 and B = 3
Factoring the trinomial expressionFrom the question, we have the following parameters that can be used in our computation:
9x² - 18x + 9 = (Ax − B)²
Factor out 9 in the expression
So we have
9(x² - 2x + 1) = (Ax − B)²
When the above expression is factored
We have
9(x - 1)² = (Ax − B)²
Express 9 as 3²
3²(x - 1)² = (Ax − B)²
So, we have
(3x - 3)² = (Ax − B)²
This means that
A = 3 and B = 3
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Can someone help me to answer these questions using the graph please
a. The concentration of the drug after 8 hours is equal to 24 mg/L.
b. The interval over which the concentration increases is 0 < t < 2. The interval over which the concentration decreases is 2 < t < ∞.
c. The drug is at its maximum concentration when t = 2 hours and the maximum concentration is 64 mg/L.
d. After the drug reaches its maximum concentration, the number of hours that are required for the concentration to decrease to 16 mg/L is 8 hours.
e. After 1 week and 1 month, we can predict that the concentration of the drug kept decreasing after reaching 20 hours.
f. After the drug is taken orally, it took exactly 2 hours to reach a maximum concentration of 64 mg/L.
How to determine the concentration of the drug after 8 hours?By critically observing the graph, the time and concentration of the drug after 8 hours is represented by the order pair (8, 24). Therefore, the concentration is equal to 24 mg/L.
Part b.
For any given function, y = f(x), if the output value (range or y-value) is decreasing when the input value is increased, then, the function is generally referred to as a decreasing function.
For any given function, y = f(x), if the output value (range) is increasing when the input value is increased, then, the function is generally referred to as an increasing function.
By critically observing the graph of the given function, we can reasonably infer and logically deduce the following:
The function is increasing over the interval [0, 2] or 0 < t < 2.The function is decreasing over the interval [2, ∞] or 2 < t < ∞.Part c.
The vertex (2, 64) of the graph represent the point where the drug is at its maximum concentration, which is time (t) = 2 hours and the maximum concentration is y = 64 mg/L.
Part d.
After the drug reaches its maximum concentration, the number of hours that are required for the concentration to decrease to 16 mg/L can be calculated from the graph as follows;
Number of hours = 10 - 2
Number of hours = 8 hours.
Part e.
After 1 week and 1 month, it can be predicted that the concentration of the drug kept decreasing after reaching 20 hours.
Part f.
After the drug is taken orally, it took exactly 2 hours to reach a maximum concentration of 64 mg/L. Subsequently, the level of the drug in the bloodstream drops after reaching its maximum concentration, reaching approximately 10 mg/L after 12 hours.
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Determine whether the statement is always, sometimes, or never true.
Two intersecting lines 1 of 1 Select Choice determine a plane
The figure shows the dimensions for a package to be shipped.
A trapezoidal prism. The front and back are trapezoids.The distance from the trapezoidal front to the trapezoidal back is 15 inches.
The slant is on the right side. The Height on the left is 6 inches, On the top, the width from the left to the top of the slanted side is 4 inches. The distance of the slant from top to bottom is 10 inches. The entire width of the base from the left to right (that is, from the left side of 6 inches to the bottom of the slant) is 12 inches.
What is the minimum amount of wrapping paper, in square inches, needed to cover the package?
Answer:
Step-by-step explanation:
To calculate the amount of wrapping paper needed to cover the package, we need to find the area of each face of the trapezoidal prism and add them together.
First, we can find the area of the trapezoidal front and back faces. The formula for the area of a trapezoid is:
Area = (a + b) / 2 * h
where a and b are the lengths of the parallel sides, and h is the height. For the front and back faces, we have:
Front/back area = ((6 + 12) / 2) * 15 = 135 square inches
Next, we can find the area of the top and bottom faces, which are rectangles. The formula for the area of a rectangle is:
Area = length * width
For the top and bottom faces, we have:
Top/bottom area = 4 * 12 = 48 square inches
Finally, we need to find the area of the two slanted faces. These faces are parallelograms, and the formula for the area of a parallelogram is:
Area = base * height
where the base is the distance between the two parallel sides, and the height is the perpendicular distance between the two parallel sides. For the slanted faces, we have:
Slanted face area = 1/2 * (12 + 4) * 10 = 80 square inches
Now we can add up all the areas to get the total amount of wrapping paper needed:
Total area = Front/back area + Top/bottom area + 2 * Slanted face area
Total area = 135 + 48 + 2 * 80
Total area = 343 square inches
Therefore, the minimum amount of wrapping paper needed to cover the package is 343 square inches.
Find the area of the shaded region
The area of the triangle in the shaded region is derived to be 12.5 square units.
How to solve for the area of the triangleFor any triangle, the area is calculated as half the base multiplied by the height of the triangle, that is;
Area of triangle = 1/2 × base × height
For the triangle in the shaded region;
base = 5 units
height = 5 units
area of the triangle = 1/2 × 5 units × 5 units
area of the triangle = 25/2
area of the triangle = 12.5 square units
Therefore, the area of the triangle in the shaded region is derived to be 12.5 square units.
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please help me with this
Answer:
f(- 5) = 10
Step-by-step explanation:
the absolute value function always gives a positive value, that is
| - a | = | a | = a
given
f(x) = 5 + | x |
to find f(- 5) substitute x = - 5 into f)x)
f(- 5) = 5 + | - 5| = 5 + | 5 | = 5 + 5 = 10
If 5+10+20+... = 5115, what is the value of n?
The value of n on the series 5 + 10 + 20 + ... = 5115 is 10
How to find the value of nThe given sequence is 5, 10, 20, ... is a geometric progression (GP) with
first term a = 5 and
common ratio r = 2
formula for the sum of the first n terms of a GP
Sn = a(rⁿ - 1) / (r - 1)
Substituting the values we have
5115 = 5(2ⁿ - 1) / (2 - 1)
Simplifying and multiplying both sides by 1
1023 = 2ⁿ - 1
2ⁿ = 1024
2ⁿ = 2¹⁰
Equation powers
n = 10
Therefore, the value of n is 10.
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Geometry- how do I complete these transformations
The coordinates of the image after the rotation are given as follows:
J'(-4,1).K'(-6, 4).L'(-4, 9).M'(-1,4).What are the rotation rules?The five more known rotation rules are given as follows:
90° clockwise rotation: (x,y) -> (y,-x)90° counterclockwise rotation: (x,y) -> (-y,x)180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y)270° clockwise rotation: (x,y) -> (-y,x)270° counterclockwise rotation: (x,y) -> (y,-x).The coordinates of the original image are given as follows:
J(1,4).K(4,6).L(9,4).M(4,1).The rotation is a 90º counterclockwise about the origin, hence the rule is given as follows:
(x,y) -> (-y, x).
Meaning that the coordinates of the rotated image are given as follows:
J'(-4,1).K'(-6, 4).L'(-4, 9).M'(-1,4).More can be learned about rotation rules at brainly.com/question/17042921
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Write an equation of a line that is perpendicular to y=3x+3 and passes through (-6,3)
Answer:
The equation of a line that is perpendicular to y = 3x + 3 is option A y equals negative one-third times x plus 1(-1/3x + 1)Given,The equation of line, y = 3x + 3The line passes through (-6, 3)We have to find the equation of the line that is perpendicular to y = 3x + 3Slope of the line, m = 3Here, in perpendicular case, slope is negative of its reciprocal.That is, m = -1/3Now, we can find the equationy - y₁ = m(x - x₁)
Here,
y₁ = 3x₁ = -6m = -1/3
So,y - 3 = -1/3(x - (-6))
y - 3 = -1/3(x + 6)
y - 3 = -1/3x + -1/3(6)
y - 3 = -1/3x - 6/3
y - 3 = -1/3
x - 2y = -1/3
x - 2 + 3
y = -1/3x + 1
That is, the equation of a line that is perpendicular to y = 3x + 3 is y equals negative one-third times x plus 1(y = -1/3x + 1)
Step-by-step explanation:
is 0.00008093 rational
Hellpppp
Please
I will give 10
A square television screen has sides that are 23 inches find the approximate length of its diagonal to the nearest tenth of an inch
The approximate length of the diagonal to the nearest tenth of an inch is 32.52 inches.
To find the length of the diagonal, we can use the Pythagorean theorem, which states that the square of the length of the diagonal is equal to the sum of the squares of the lengths of the sides.
In this case, since the sides of the square television screen are 23 inches, we can calculate the length of the diagonal using the following formula
So, if the sides of the square television screen are 23 inches, then:
[tex]Diagonal^2 = Side^2 + Side^2[/tex]
[tex]Diagonal^2 = 23^2 + 23^2[/tex]
[tex]Diagonal^2[/tex]= 529 + 529
[tex]Diagonal^2[/tex] = 1058
Diagonal = √1058
Diagonal ≈ 32.52 inches
Rounding to the nearest tenth of an inch, the approximate length of the diagonal is 32.52 inches.
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The average team score for the first 5 basketball game of the season is 45 points the scores of the first 5 game are 54 60 28 42
The average team score for the first five basketball games is 46 points.
Understanding MeanTo find the average team score for the first five basketball games, we simply use Mean.
Mean is the sum of the scores and divide it by the number of games.
Given scores:
Game 1 score = 54
Game 2 score = 60
Game 3 score = 28
Game 4 score = 42
Sum of scores = 54 + 60 + 28 + 42
= 184
Number of games = 4 (since we have scores for only four games)
Average team score (Mean) = Sum of scores / Number of games
= 184 / 4
= 46
Therefore, the average team score for the first five basketball games is 46 points.
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Find the derivative of f(x) = sin-1(e2x).
guys pls help
The derivative of the inverse trigonometric function is equal to f'(x) = (2 · e²ˣ) / √(1 - e⁴ˣ). (Correct choice: D)
How to find the derivative of a inverse trigonometric function
In this problem we find the case of the inverse trigonometric function, whose derivative must be found. This can be done by means of derivative rules and chain rules. First, write the entire function:
f(x) = sin⁻¹ (e²ˣ)
Second, find the derivative of the inverse trigonometric function:
f'(x) = [1 / √[1 - (e²ˣ)²]] · (2 · e²ˣ)
f'(x) = (2 · e²ˣ) / √(1 - e⁴ˣ)
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help!!!
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Determine each segment length in right triangle ABC
The segment lengths are given as follows:
BD = 7.BC = [tex]7\sqrt{2}[/tex]What is the Pythagorean Theorem?The Pythagorean Theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.
The theorem is expressed as follows:
c² = a² + b².
In which:
c is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.Considering the geometric mean theorem, the triangle has bases of 7 and 14 - 7 = 7, hence the altitude BD is given as follows:
BD² = 7 x 7
BD² = 7²
BD = 7.
The segment BC is the hypotenuse of a right triangle of two sides with length 7, hence:
(BC)² = 7² + 7²
[tex]BC = \sqrt{2 \times 49}[/tex]
[tex]BC = 7\sqrt{2}[/tex]
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1. What will be the place
value of the number in
thousand's place for the
number that is obtained
by adding 60 tens, 58
hundreds and 685 ones?
Identify the number is
even or odd.
2.What is the difference
between the
Predecessor and
successor of a number?
Illustrate with an
example.
The evaluation of the value of the arithmetic operation based on the place value of the numbers indicates;
1. The number in the thousands place is; 7
The number is od
2. The difference between the predecessor and successor of the set of integers is; 8 - 6 = 2
What are arithmetic operations?Arithmetic operations are operations including, addition, subtraction, division and multiplication.
1. The numbers to be added are; 600, 5800, and 685
The sum of the numbers is; 600 + 5800 + 685 = 7085
Therefore, the place value in the thousands place is 7
The last digit of the number 7085 is 5 indicating that the number is an odd number
2. The predecessor of a number is the number that comes before the number.
The successor of the number is the number that comes after the number
The difference between the predecessor and the successor of a number therefore is; n + 1 - (n - 1) = n + 1 - n + 1 = 2
Example; 8 - 6 = 2
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Find the Surface Area of Number 1
Answer:
the answer is: 258
How?:
Area:
2(wl+hl+hw)
2(9×6 + 5×6 + 5×9) = 258
You are landscaping your backyard and want to fertilize the lawn. Home Depot sells SuperGreen lawn fertilizer in large bags. Each bag is estimated to cover about 3,500 square feet. Your lawn is 3/4 of an acre.
How many bags are required to fertilize your lawn? Assume you cannot purchase partial bags. You have to purchase whole bags. Helpful hint: 1 acre is 43,560 square feet.
Answer:
10
Step-by-step explanation:
1 acre = 43560 ft²
3/4 acre = 3/4 × 43560 ft² = 32670 ft²
The lawn is 32670 ft².
Each bag covers 3500 ft².
number of bags needed = 32670/3500 = 9.33
You need approximately 9 1/3 bags, but since you must buy full bags, you must buy 10 bags.
Answer: 10
Choose the appropriate form and fill in the blanks
x²-8x+5=0
(x+_)²=_
(x-+_)²=_
The required forms of the equation are;
(x+(-4))²= - 5 + ((-4))²
(x -4)²= 11
What is completing the square method?
Completing the square is a method used to rewrite a quadratic expression in standard form by adding and subtracting a constant to make it a perfect square trinomial. Completing the square is a useful method to solve quadratic equations and to rewrite quadratic expressions in standard form.
The standard form of a quadratic equation is ax² + bx + c = 0
We have that;
x²-8x+5=0
(x+(-4))²= - 5 + ((-4))²
(x -4)²= 11
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which is the difference of 21-15/16 - 18-3/4
find the distance d of AB A = (2, -3) B = (4,5) Next calculate the square of the distance in the y direction d = [tex]d = \sqrt |x2-x1|^2+|y2-y1|^2|y2-y1|^2=?
ive tried everything and im desperate for the answer! :(
The distance d between A and B is √(68), and the square of the distance in the y direction is 64.
To find the distance d between points A and B, we can use the distance formula:
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Substituting the values of A and B, we get:
d = sqrt((4 - 2)^2 + (5 - (-3))^2)
d = sqrt(2^2 + 8^2)
d = sqrt(4 + 64)
d = sqrt(68)
Next, to calculate the square of the distance in the y direction, we need to find the difference between the y-coordinates of A and B and square it. So:
(y2 - y1)^2 = (5 - (-3))^2 = 8^2 = 64
Therefore, the square of the distance in the y direction is 64.
I'm here to help you with your question. To find the distance d between two points A(x1, y1) and B(x2, y2), we can use the distance formula:
d = √((x2-x1)² + (y2-y1)²)
Given the points A(2, -3) and B(4, 5), let's plug in the values:
d = √((4-2)² + (5-(-3))²)
Now, calculate the difference for each coordinate:
d = √((2)² + (8)²)
Next, square the differences:
d = √(4 + 64)
Finally, calculate the square root:
d = √(68)
ow, let's find the square of the distance in the y direction, which is (y2-y1)²:
(y2-y1)² = (5-(-3))²
Calculate the difference:
(y2-y1)² = (8)²
Square the difference:
(y2-y1)² = 64
So, the distance d between A and B is √(68), and the square of the distance in the y direction is 64.
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Guys i need urgent help here please.
If the temperature of a chemical mixture is tan√x degree celsius after x hours then the rate of change of temperature after π /4 hours is 0.141099
We are given that the temperature of the chemical mixture after x hours is given by:
T(x) = tan(√x)
To find the rate of change of temperature after π/4 hours, we need to find the derivative of T(x) with respect to x and evaluate it at x = π/4.
T'(x) = sec²(√x)/2√x
So, the rate of change of temperature after π/4 hours is given by:
T'(π/4) = sec²(√(π/4))/2√(π/4)
= sec²(π/2)/2√(π/4)
= 1/2√(π/4)
We can simplify this expression as:
T'(π/4) = 1/2(π/2)⁰⁵
= 0.141099
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A spinner with equally sized slices, has 4 red slices, 3 yellow slices, and 3 blue slices. Debra spun the dial 200 times and got the following results. 85 red, 58 yellow, 57 blue
The probability for the dial stops on a red or blue slice is,
P = 7/8.
Since, We know that;
Probability is to measure of the likelihood of an event occurring.
Hence, It is a number between 0 and 1,
Since, The closer the probability is to 1, the more likely the event is to occur.
Hence, Probability can make predictions and decisions in various fields, including finance, statistics, etc.
Since, There are 4 red and 3 blue slices,
Hence, a total of slices,
= 4 + 3
= 7 slices that are either red or blue.
So, The probability of the dial stopping on a red or blue slice,
Probability = ( red or blue slices) / (total of slices)
Probability = 7/8
Therefore, the probability for the dial stops on a red or blue slice is 7/8.
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Complete question is,
A spinner with 8 equally sized slices has 4 red slices, 3 blue slices, and 1 yellow slices. The dial is spun and stops on a slice at random. What is the probability that the dial stops on a red or blue slice?
Write your answer as a fraction in the simplest form.
Plot the following points on the coordinate plane: (Tell me the answer)
A(5,0), B(3,2), C(0,5), and D(-6,1) are all located in the first quadrant. D(-6,1) is located within the second quadrant.
A coordinate system within geometry is a way to use one or more integers, or coordinates, to determine the exact placement of points and other geometrical objects over a manifold, such Euclidean space. The order of the coordinates is crucial, and they are frequently identified by their position within an arranged tuple or through a letter, such as "the x-coordinate." Within the first quadrant is A(5,0). The first quadrant is occupied by B(3,2), followed by C(0,5) with the first quadrant, D(-6,1) with the second quadrant, E(-4,4) from the second quadrant, and F(2,-3) with the fourth quadrant.
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If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from
the first equation is substituted into the second equation.
x+4y=-9
2x + 5y=-6
A)2(4-9)+ 5y-6
B)21-4y-9)+5% -6
C)2x+5(4-9)=-6
D)2x+5(-4y-9)=-6
To use the substitution method to solve the system, we need to solve one of the equations for x or y in terms of the other variable, and then substitute that expression into the other equation to get an equation in one variable that we can solve.
Let's solve the first equation for x in terms of y:
x + 4y = -9
x = -4y - 9
Now we substitute this expression for x into the second equation:
2x + 5y = -6
2(-4y - 9) + 5y = -6
Simplifying this expression, we get:
-8y - 18 + 5y = -6
-3y = 12
y = -4
Now we can substitute this value of y into either of the original equations to find x. Let's use the first equation:
x + 4y = -9
x + 4(-4) = -9
x - 16 = -9
x = 7
Therefore, the solution to the system is x = 7, y = -4.
Now let's look at the answer choices and see which one matches the equation we got by substituting x = -4y - 9 into the second equation:
A) 2(4-9)+ 5y-6 = -10 + 5y - 6 = 5y - 16
B) 21-4y-9)+5% -6 = -4y + 6
C) 2x+5(4-9)=-6 = 2x - 25 = -6
D) 2x+5(-4y-9)=-6 = 2x - 20y - 45 = -6
The answer choice that matches our equation is D), 2x + 5(-4y - 9) = -6.
Intelligence Quotient (IQ) scores are often reported to be normally distributed with μ=100.0
and σ=15.0
. A random sample of 45
people is taken.
Step 1 of 2 : What is the probability of a random person on the street having an IQ score of less than 99
? Round your answer to 4
decimal places, if necessary.
The probability of a random person on the street having an IQ score of less than 99 is 0.4729.
We have,
We need to standardize the IQ score using the formula:
z = (x - μ) / σ
So,
For x = 99,
z = (99 - 100) / 15
z = -0.067
We can then use a standard normal distribution table or calculator to find the probability of a z-score less than -0.067.
Using a standard normal distribution table, we find that the probability of a z-score less than -0.067 is 0.4729
Therefore,
The probability of a random person on the street having an IQ score of less than 99 is 0.4729.
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what is the inverse of the function? pls help
The inverse of the function f(x) = 1/x is B. f⁻¹(x) = 1/x
What is the inverse of a function?The inverse of a function f(x) written as f⁻¹(x) is such that ff⁻¹(x) = f⁻¹f(x)
Given the function f(x) = 1/x,we desire to find its inverse. We proceed as follows.
Since f(x) = 1/x
Let f(x) = y
So,we have that
y = 1/x
Now, multiplying both sides by x,we have that
x × y = 1/x × x
xy = 1
Dividing though by y, we have that
xy/y = 1/y
x = 1/y
Now, relacing y with x and x with f⁻¹(x), the inverse of f(x), we have that
x = 1/y
x = 1
f⁻¹(x) = 1/x
So, the inverse is B. f⁻¹(x) = 1/x
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An interior designer is hanging a circular clock for a client, as shown. The hanger at point B connects to the clock by two wires that are tangent to the clock at points A and C. A circle is shown with center at point E. There is a line segment connecting points B, D, E, and F. Segments DE and EF are radii of the circle. Segment DF is a diameter of the circle. Segment AB and BC are tangent to the circle at points A and C. If the radius of the clock is 15 cm and the distance from the top of the clock at point D to the hanger at point B is 10 cm, what is the length from point A to point B? 10 cm 15 cm 20 cm 40 cm
Answer: 15cm?
Step-by-step explanation: I am doing this assignment right now, after i submit it i will reply with the answer. Edit: 15cm is correct.
The distance from point A (tangent point on clock) to point B (the hanger) is approximately 10 cm, based on the principles of right-angle triangles and Pythagorean theorem.
Explanation:In this geometry problem, we're looking at a situation where a circular clock is hung by wires connected to a tangential point on the clock. By using right-angle triangle principles and the given radius of 15 cm from E to D, it''s key to recognize that triangle AED is a right triangle (since a radius perpendicular to a tangent at its point of contact forms a right angle).
So, the distance from A to E (the radius) is 15 cm. The distance from E to D is also a radius, hence is 15 cm as well. Now, by Pythagoras theorem for right triangle AED, the distance AD (the hypotenuse) is square root of (15^2 + 15^2), which is approximately 21.21 cm.
The distance BD from the top of the clock at point D to the hanger at point B is given as 10 cm. Since the clock is hanging from point B, this creates another right triangle ADB. The length from point A to B is found by subtracting BD (10 cm) from the hypotenuse AD (21.21 cm), which is roughly 11.21 cm. However, this option is not offered in the question, meaning a rounding must be made, so the answer is approximately 10 cm.
Learn more about Pythagorean Theorem here:https://brainly.com/question/19649203
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