The surface area of the pyramid is 74.25 square meters.
What is surface area?Surface area is the total area that the surface of an object occupies. It is the sum of the areas of all the faces, sides, and curved surfaces of an object. Surface area is usually measured in square units, such as square meters, square feet, or square centimeters.
What is pyramid?A pyramid is a polyhedron with a polygonal base and triangular faces that meet at a common vertex (known as the apex). Pyramids are named according to the shape of their base.
In the given question,
The area of the base is simply the area of a square, which is:
Area of base = length x width = 4.5m x 4.5m = 20.25 square meters
To find the area of each triangular face, we first need to find the length of the slant height (the height of the triangle).
We can use the Pythagorean theorem to do this:
h²= (1/2 x base)² + height²
h² = (1/2 x 4.5)² + 6²
h² = 2.25 + 36
h² = 38.25
h = √38.25
h = 6.18 meters (rounded to two decimal places)
Now that we know the slant height, we can find the area of each triangular face:
Area of one triangular face = (1/2 x base x height) = (1/2 x 4.5 x 6) = 13.5 square meters
Since there are four triangular faces on a square pyramid, we need to multiply this by 4 to find the total area of the triangular faces:
Total area of triangular faces = 4 x 13.5 = 54 square meters
Finally, we can find the surface area of the pyramid by adding the area of the base and the area of the triangular faces:
Surface area = Area of base + Total area of triangular faces
Surface area = 20.25 + 54
Surface area = 74.25 square meters
Therefore, the surface area of the pyramid is 74.25 square meters.
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Given (x – 7)2 = 36, select the values of x. x = 13 x = 1 x = –29 x = 42
Step-by-step explanation:
To solve the given equation, we can start by taking the square root of both sides of the equation:
(x – 7)^2 = 36
√((x – 7)^2) = ±√36
x – 7 = ±6
Now, we can solve for x by adding 7 to both sides of the equation for each case:
x – 7 = 6 or x – 7 = -6
x = 13 or x = 1
Therefore, the values of x that satisfy the equation are x = 13 and x = 1. The other values, x = -29 and x = 42, do not satisfy the equation.
3. What is the angle of rotation of the following figure?
180°
60°
90°
45°
Answer:
180
Step-by-step explanation:
I need the x|x domain and the asymptotic
The domain of the function R(x) is (-∞, -4) U (-4, 3) U (3, ∞).
The vertical asymptote is x = -4 and x = 3
The horizontal asymptote is y = 1.
What is a domain?In Mathematics, a domain refers to the set of all real numbers (x-values) for which a particular function is defined.
In Mathematics, the horizontal portion of any graph is used to represent all domain values and they are both read and written from smaller to larger numerical values, which simply means from the left of any graph to the right.
By critically observing the graph shown in the image attached below, we can logically deduce the following domain:
Domain = {0, ∞}.
In conclusion, an asymptote is a line which the graph of any given function approaches but would never cross or touch;
Vertical asymptote is x = -4 and x = 3
Horizontal asymptote is y = 1.
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Complete Question:
Analyze the graph of the function.
[tex]R(x)=\frac{x^2}{x^2+x-12}[/tex]
a. What is the domain of R(x)?
b. What is the vertical and horizontal asymptote?
2. The area of the triangle is 21 in². What is the
ngth of the base?
7in.
The length of the base is 6 inches.
What is triangle?
A triangle is a three-sided polygon, which is a flat shape with straight sides. It is a basic shape in geometry and has many interesting properties that are useful in mathematics and other fields.
The formula for the area of a triangle is A = 1/2 * b * h, where A is the area, b is the length of the base, and h is the height of the triangle.
In this case, we know that the area of the triangle is 21 in² and the height is 7 in. So we can substitute these values into the formula and solve for the base:
21 = 1/2 * b * 7
Multiplying both sides by 2:
42 = b * 7
Dividing both sides by 7:
6 = b
Therefore, the length of the base is 6 inches.
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Complete question : The area of the triangle is 21 in² ad the height is 7 in. what is the length of the base?
find dy/dx y=e^x(e^-2x+7)
The chain rule is used when a function is composed of two or more functions, where one function is applied to the output of the other. In other words, it is used when a function is "nested" inside another function. Thus, option A is correct.
What is chain rule and the product rule of differentiation?We can solve this problem by applying the chain rule and the product rule of differentiation. Let's begin by simplifying the expression inside the parentheses:
[tex]y = ex (e^-2x + 7)[/tex]
Now, let's apply the product rule:
[tex]dy/dx = (ex)'(e^-2x + 7) + ex(e^-2x + 7)'[/tex]
Using the chain rule, we can find (ex)':
[tex](ex)' = ex[/tex]
And using the chain rule again, we can find [tex](e^-2x + 7)':[/tex]
[tex](e^-2x + 7)' = (-2e^-2x)[/tex]
Substituting these values back into the original equation, we get:
[tex]dy/dx = ex(e^-2x + 7) + ex(-2e^-2x)[/tex]
Simplifying, we get:
[tex]dy/dx = ex(e^-2x + 7 - 2e^-2x)[/tex]
[tex]dy/dx = ex(e^-2x - e^-2x + 7)[/tex]
[tex]dy/dx = ex(7)[/tex]
Therefore, the answer is A) 7.
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To find my equation, shift f(x) = x^2 + 5 left 3
PLEASEEEE
Answer:
f(x) = (x+3)^2 + 5
Step-by-step explanation:
Hope this is right :)
A rental car cost $45 a day and $0.20 a mile. How many miles can you drive in one day on a budget
of $100
Set up your inequality
275 miles can be driven in one day on a budget of $100.
Definition of Inequalitiesan inequality is defines as a mathematical statement that uses the inequality symbol to illustrate the relationship between two expressions. An inequality symbol has non-equal expressions on either sides. It indicates that the phrase on the left should be bigger or smaller than the expression on the right, or vice versa.
The rental car costs $45 a day and $0.20 a mile. So, for a budget of $100, the inequalities can be written as
45+.20m≤ 100
Where m= no.of miles
No.of miles can be travelled in 100
.2m=100-45
m=55/.2
m=275miles
Hence,275 miles can be driven in one day on a budget of $100.
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can you solve this quesiton?
f'(x)=?
The derivative of f(x) is (1/2)(9x - sin²(2x))^(-1/2) * (9 - 4sin(2x)cos(2x)).
What is a derivative?
A derivative is a mathematical concept used in calculus to determine the rate at which a function changes with respect to its input variable. It measures the instantaneous rate of change of the function at a specific point, and is calculated as the limit of the rate of change as the input variable approaches zero. The derivative is represented by the notation f'(x) or dy/dx, and can be used to find important information about the function, such as its slope, maxima and minima, and points of inflection.
What are expression?
In mathematics, an expression is a combination of numbers, symbols, and/or variables that are combined in some way using mathematical operations such as addition, subtraction, multiplication, division, or exponentiation.
According to given information:To find the derivative of f(x) = √[9x - sin²(2x)], we can use the chain rule and the power rule of differentiation:
f(x) = √[9x - sin²(2x)]
f'(x) = (1/2)(9x - sin²(2x))^(-1/2) * (9 - 4sin(2x)cos(2x))
Using the chain rule, we first take the derivative of the expression inside the square root, which is 9x - sin²(2x), and then multiply it by the derivative of the expression inside the square root. The derivative of the expression inside the square root is:
(1/2)(9x - sin²(2x))^(-1/2) * (d/dx)(9x - sin²(2x))
Using the chain rule and the power rule of differentiation, we can find the derivative of 9x - sin²(2x) as:
d/dx (9x - sin²(2x)) = 9 - 4sin(2x)cos(2x)
Substituting this into the expression for f'(x), we get:
f'(x) = (1/2)(9x - sin²(2x))^(-1/2) * (9 - 4sin(2x)cos(2x))
So, the derivative of f(x) is (1/2)(9x - sin²(2x))^(-1/2) * (9 - 4sin(2x)cos(2x)).
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The derivative of f(x) is: f'(x) = (9 - 4sin(2x)cos(2x)) / [2√(9x - sin²(2x))].
What is differentiation?Differentiation is a mathematical concept used to calculate the rate at which one quantity changes with respect to another. In calculus, it refers to the process of finding the derivative of a function, which gives the slope of the tangent line at any point on the function.
In the given question,
To find the derivative of f(x), we can use the chain rule and the power rule of differentiation.
f(x) = √[9x - sin²(2x)]
Let's first simplify the expression under the square root:
g(x) = 9x - sin²(2x)
Taking the derivative of g(x) gives:
g'(x) = 9 - 2sin(2x) * cos(2x) * 2
g'(x) = 9 - 4sin(2x)cos(2x)
Now we can use the chain rule to find f'(x):
f'(x) = [1/2(9x - sin²(2x))^(-1/2)] * g'(x)
f'(x) = [1/2√(9x - sin²(2x))] * [9 - 4sin(2x)cos(2x)]
Therefore, the derivative of f(x) is:
f'(x) = (9 - 4sin(2x)cos(2x)) / [2√(9x - sin²(2x))]
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Write numbers to make an expression equivalent to 5x - 4
Expression equivalent to 5x - 4 are 5(x - 4/5), 5x - 20/5, 10x/2 - 8/2 and 3(5x/3) - 4
How numbers to make an expression equivalent to 5x - 4To create an expression equivalent to 5x - 4, we need to use arithmetic operations such as addition, subtraction, multiplication, and division, along with numbers and variables. The goal is to manipulate the numbers and variables in a way that results in the same value as 5x - 4.
Here are some examples of how we can do this:
5(x - 4/5)
In this expression, we start with x and subtract 4/5 from it. Then we multiply the result by 5. This is equivalent to distributing the 5 to x and -4/5, which gives us 5x - 4.
5x - 20/5
Here, we simply subtract 20/5 (which simplifies to 4) from 5x. This gives us 5x - 4.
(25x - 20)/5
In this expression, we start with 25x and subtract 20 from it. Then we divide the result by 5. This is equivalent to simplifying the expression to 5x - 4.
10x/2 - 8/2
This expression might look a bit different, but it's still equivalent to 5x - 4. Here, we start with 10x and divide it by 2, which gives us 5x. Then we subtract 8/2 (which simplifies to 4) from it, giving us 5x - 4.
3(5x/3) - 4
In this expression, we start with 5x and divide it by 3. Then we multiply the result by 3, which gives us 5x. Finally, we subtract 4 from it, giving us 5x - 4.
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Given a right triangle with = 60° and the hypotenuse equal to 25 feet, which trigonometric
function would you use to solve for the opposite side?
cosine
secant
sine
tangent
We will use sine function, and length of the opposite side is [tex]\frac{25\sqrt{3}}{2}$[/tex] feet.
Explain about Sine function.To solve for the opposite side of the right triangle, we would use the sine function. In a right triangle, the sine of an angle is defined as the ratio of the length of the opposite side to the length of the hypotenuse.
In this problem, we are given that one angle of the right triangle is 60 degrees and the hypotenuse is 25 feet. Let's label the opposite side as x and the adjacent side as y. Then we can use the sine function:
[tex]$\sin 60^\circ = \frac{x}{25}$[/tex]
Simplifying the left side, we have:
[tex]$\frac{\sqrt{3}}{2} = \frac{x}{25}$[/tex]
Multiplying both sides by 25, we get:
[tex]$x = \frac{25\sqrt{3}}{2}$[/tex]
Therefore, the length of the opposite side is [tex]\frac{25\sqrt{3}}{2}$[/tex] feet.
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Question 2
(03.01 LC)
Which of the following is not created when a plane slices through a cone?
O Point
O Line
O Circle
O Square
A square is not created when a plane slices through a cone.
What is square?
A square is a geometrical shape that has four equal sides and four equal angles of 90 degrees.
What is cone?
A cone is a three-dimensional geometric shape that tapers smoothly from a flat base to a pointed top or apex. It looks like a funnel or an ice cream cone.
According to given information:When a plane intersects or slices through a cone, it creates a variety of different shapes depending on the angle of the plane and the position of the cone.
If the plane intersects the cone at an angle perpendicular to its base, it will create a circle. If the plane intersects the cone at an angle that is not perpendicular to its base, it will create an ellipse.
If the plane intersects the cone at an angle that is parallel to one of its generators (the lines that can be drawn from the vertex of the cone to any point on its base), it will create a parabola. If the plane intersects the cone at an angle that is not parallel to one of its generators, it will create a hyperbola.
Therefore, a square is not created when a plane slices through a cone.
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Can someone please help.
By circle , 15 is the length of x .
What is a circle, exactly?
A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by each line that traverses the circle.
Moreover, every angle has rotational symmetry around the center. With no sides or edges, a circle is a figure with a round shape. A circle can be characterized in geometry as a closed shape, a two-dimensional shape, or a curved shape.
AE² = EC . CD
10² = 5 * x
100 = 5 * x
100/5 = x
20 = x
ED = 20 - 5 = 15
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help I don't understand
With the help of proportions in the given similar triangles we know that the value of x is 3.5 units.
What is triangle similarity?Euclidean geometry states that two objects are comparable if they have the same shape or the same shape as each other's mirror image.
One can be created from the other more precisely by evenly scaling, possibly with the inclusion of further translation, rotation, and reflection.
These three theorems—Angle-Angle (AA), Side-Angle-Side (SAS), and Side-Side-Side (SSS)—are reliable techniques for figuring out how similar triangles are to one another.
So, in the given situation:
TR and WY are as follows:
TR/WU
24/2
2/1
Similarly,
TS/WV
2/1
7/x
7/3.5
Therefore, with the help of proportions in the given similar triangles we know that the value of x is 3.5 units.
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Find the probability of rolling an even number on a single die
The probability of rolling an even number on a single die is 1/2, or 50%. This can be calculated by considering the possible outcomes of rolling the die.
There are six possible outcomes, and three of these are even numbers (2, 4, and 6). Therefore, there is a 3/6, or 1/2, chance of rolling an even number. In terms of probability, this can be expressed as a fraction, percentage, or decimal. As a fraction, the probability of rolling an even number on a single die is 3/6, or 1/2. As a percentage, the probability of rolling an even number on a single die is 50%. As a decimal, the probability of rolling an even number on a single die is 0.5. No matter how it is expressed, the probability of rolling an even number on a single die is 1/2, or 50%. This can be easily remembered by considering that there are six possible outcomes, and three of them are even numbers.
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help and i give brbainlist
Answer:
Option C would likely produce the most representative sample of the population of smartphones made by the company. By testing every 500th smartphone off the production line, the manufacturer can ensure that they are selecting a random sample of smartphones from throughout the production process. This can help to account for any variations or changes that may occur in the manufacturing process over time.
Option A, testing the first smartphone off the production line each day, may not be representative of the entire production run since the first smartphone may not be representative of the rest of the batch. Similarly, option B, testing the last 1000 smartphones produced each month, may not be representative of the entire production run as there may be variations in quality and safety standards throughout the month.
Option D, testing every smartphone made on Wednesday, would likely not produce a representative sample as it may not account for any variations or changes that occur during other days of the week.
THE ANSWER IS D. You are designing a new product that requires the use of a stable, nonreactive gas. Which gas would be most suitable? O A. Oxygen, 0 O B. Bromine, Br OC. Sulfur, S O D. Argon, Ar SUBMIT
Argon is the gas who would work best for something that needs a steady, nonreactive gas. (Ar).
What are the uses of argon?When a neutral environment is required, argon is frequently used. In this manner, titanium and other volatile metals are produced. Additionally, it is used in the manufacture of incandescent bulbs to prevent air from corroding their filaments and by welders to safeguard the weld region.
Argon is it a vapour or a metal?A chemical substance in the periodic table's 18th group is argon. It is an expensive gas and the third most common gas in the atmosphere of the planet. Aside from nitrogen and oxygen, argon is the most prevalent gas in the atmosphere.
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Finding the area and perimeter
Answer:
Lion area: 60
Lion Perimeter: 34
Tiger Area: 60
Tiger perimeter: 64
Step-by-step explanation:
please please please help i’ll give brainlist
Answer:
The geometric mean of 9 and 6 is 4/3
Step-by-step explanation:
The geometric mean of 8 and 6 is [tex]4\sqrt{3}[/tex]
What is geometric mean?The geometric mean of two numbers [tex]x_1[/tex] and [tex]x_2[/tex] is given by the formula:
[tex]GM=\sqrt{x_1\times x_2}[/tex]
The two given numbers are 8 and 6
That is, [tex]x_1=8[/tex] and [tex]x_2=6[/tex]
Substitute [tex]x_1=8[/tex] and [tex]x_2=6[/tex] into the formula [tex]GM=\sqrt{x_1\times x_2}[/tex]
[tex]GM=\sqrt{8\times 6}[/tex]
Simplifying further:
[tex]GM=\sqrt{48}[/tex]
[tex]GM=4\sqrt{3}[/tex]
Therefore, the geometric mean of 8 and 6 is [tex]4\sqrt{3}[/tex]
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What is the tangent ratio for angle FFDF is 6DE is eight and EF is 10?
The tangent ratio for angle F is [tex]\frac{4}{3}[/tex] . The solution has been obtained by using trigonometry.
What is trigonometry?
In the area of mathematics known as trigonometry, right-angled triangles, including their sides, angles, and connections, are studied.
We are given a right angled triangle. The sides of the triangle are given as DF is 6, DE is 8 and EF is 10.
This means that the perpendicular is 8 and base is 6.
We know by trigonometry that tan θ is the ratio of triangle's perpendicular and base.
So, from this we get
⇒ tan F = [tex]\frac{8}{6}[/tex]
⇒ tan F = [tex]\frac{4}{3}[/tex]
Hence, the tangent ratio for angle F is [tex]\frac{4}{3}[/tex] .
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Question: What is the tangent ratio for angle F, if DF is 6, DE is 8 and EF is 10?
Given g(x) = 8x2 − x + 2, find the following.
1) g(0)
2) g(−1)
3) g(r)
4) g(x + h)
Answer:
Step-by-step explanation:
Given g(x) = 8x2 − x + 5, find the following.
(a). g(0) = 5
(b). g(−1) = 14
(c). g(r) = ?
(d). g(x + h) = ?
100 points and brainliest
Find all the missing angles:
Answer:
<AOB = 112
<AOD = 68
<DOC = 112
Hoped this helped
: )
Find the value of X.
Answer:
X = 61, Angle 57 and 123
Step-by-step explanation:
If you could provide the exact question that would be great, but from the information given what we know is that the entirety of half of a circle is 180 degrees so the angle at x-4 and the angle and 2x+1 must be equal to 180 degrees.
Therefore:
x-4 + 2x+1 = 180 degrees
X = 61, Therefore:
x-4 --> 61 -4 = 57 degrees
2x+1 ---> 2(61) +1 = 123 degrees
So:
The angles are 57 degrees for x-4 and 123 for 2x+1 .
Is it possible to become smart without going to school?
Answer: it depends; if exam day, no
Step-by-step explanation:
The Hillmans have $12,000 in a savings account. The bank pays 1.25% interest on the savings account, compounded continuously. Find the total balance after four years.
The total balance after four years when compounded continuously is $12,615.24.
What is continuous compounding?A technique of calculating interest on a loan or investment where interest is compounded an endless number of times annually is called continuous compounding. Continuous compounding is a method of growing an investment or debt over time by continually adding interest earned over a relatively brief period of time to the principal. In financial computations where interest is earned or charged continuously, such in the bond or mortgage markets, continuous compounding is frequently utilised.
The compound interest is given as:
[tex]A = Pe^{(rt)}[/tex]
Substituting the values:
[tex]A = 12000 * e^{(0.0125 * 4)}\\A = 12000 * e^{(0.05)}[/tex]
A = 12000 * 1.05127
A = 12615.24
Therefore, the total balance after four years is $12,615.24.
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Mar 09, 1:56:27 PM
In a certain Algebra 2 class of 28 students, 11 of them play basketball and 13 of them
play baseball. There are 11 students who play neither sport. What is the probability
that a student chosen randomly from the class plays both basketball and baseball?
Answer:
Submit Answer
attempt 1 out of
The probability of choosing a student who plays both basketball and baseball is approximately 0.4643.
What is probability?It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to occur.
According to question:We can use the inclusion-exclusion principle to find the number of students who play both basketball and baseball.
Number of students who play both = Number of basketball players + Number of baseball players - Number of students who play neither
= 11 + 13 - 11
= 13
Therefore, out of 28 students, 13 play both basketball and baseball.
The probability of choosing a student who plays both sports can be calculated as follows:
P(plays both) = Number of students who play both / Total number of students
= 13/28
= 0.4643 (rounded to 4 decimal places)
So the probability of choosing a student who plays both basketball and baseball is approximately 0.4643.
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There are 3 questions please try to show work
1.Batman started the month with $57 in his bank account and accidentally over spend his money, so he ended the month with -$42. How much money did Batman spend this month? Show all organized work.
2. Barbie a scuba diving. Her position changes from -2.1 m ti -38.6 m in 5 minutes.b what is the average change in barbies position each minute? Show all organize work.
3. Ms.Blue went on a diet. She stocked her meal plan and successfully lost 4 pounds every month what was the change in Ms.Blue’s weight after on year of dieting? (include the sign in your answer)
1. Batman spent $99 this month after starting with $57 and ending with a balance of -$42.
2. The average change in Barbie's position each minute in the scuba diving is -7.3 meters.
3. The change in Ms. Blue's weight after one year of dieting and losing 4 pounds monthly is -48 pounds.
How the values are determined:1) Batman's Bank Account:Initial balance in the bank account = $57
Final balance at month-end = $-42
The total amount spent = $99 ($57 + $42)
Thus, when $99 is taken away from $57, the balance is $-42.
2) Barbie's Scuba Diving:Initial position = -2.1 m
Final position = -38.6 m
Change in position = -36.5 m (-38.6 - -2.1)
The number of minutes used to change position = 5 minutes
The average change per minute = -7.3 m (-36.5 ÷ 5)
3) Ms. Blue's Weight Loss:The quantity of pounds lost per month = 4 pounds
The period of dieting = 1 year = 12 months
The total change in weight after one year of dieting = -48 pounds (-4 x 12)
Thus, these three problems are solved using mathematical operations.
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In a survey on supernatural experiences, 718 of 4,005 adult Americans surveyed reported that they had seen a ghost. Assume that this sample is representative of the population of adult Americans.
The survey results, it can be estimated that approximately 17.93% of adult Americans have seen a ghost at some point in their lives[tex] (718/4,005 = 0.1793)[/tex].
However, it is important to note that this estimate is based on a sample and there may be some degree of error or variability.
Additionally, the term "supernatural experiences" may encompass a wide range of phenomena beyond just seeing ghosts, so the estimate may not accurately reflect the prevalence of all types of supernatural experiences in the population.
In the given survey on supernatural experiences, 718 out of 4,005 adult Americans reported having seen a ghost. Assuming this sample is representative of the adult American population, you can calculate the proportion of adults who have seen a ghost.
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If
f
(
x
)
=
3
5
−
x
+
6
f(x)=3
5−x
+6, what is the value of
f(5), to the nearest tenth (if necessary)?
Answer:
the answer is f-1(x) = 5 - ln (x - 6)/ln (3) (I guess?)
pls answer!!!!!!!!!!!!!!
The expressions in a single exponent are 9³/9⁹ = 9⁻⁶ and 14⁻³ * 14¹² = 14⁹
Diego's mistake is multiplying the expressions, wrongly
Rewriting the expressions in a single exponentExpression 1
Given that
9³/9⁹
To solve, we make use of the law of indices
So, we have
9³/9⁹ = 9⁻⁶
Expression 2
Here, we have
14⁻³ * 14¹²
Using the law of indices, we have
So, we have
14⁻³ * 14¹² = 14⁹
The mistake in Diego's expressionDiego's expression is given as
6⁴ * 8³ = 48⁷
The mistake in Diego's expression is that he multiplied 6 and 8, and then add the exponents
This is incorrect, and the actual solution is
6⁴ * 8³ = 1296* 512
6⁴ * 8³ = 2¹³ × 3⁴
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Patricia diseñó el marco para fotografías de la derecha. Ella hace marcos de diferentes
medidas, pero conservando su grosor, que es de 4 cm, como se observa en el dibujo.
¿Cómo se puede determinar el tamaño del espacio para la fotografía a partir del
área del portarretrato?
To be able to determine the size of the space for the photograph from the frame area, we need to know the area of the frame and the dimensions of the photo frame (length and width). The given information is insufficient.
What do we determine the size of an object?Most ideally, we determine the size of an object using different measurements and units of measurement. The most common measurement used for size is length or distance, which refers to the distance between two points on an object.
The other measurements used for size include area, volume, mass, weight, and density, which provide additional information about the object's characteristics. In order to determine the size of an object mathematically, we must understand the units of measurement being used and the appropriate formulas or equations for calculating size.
Translated question "Patricia designed the photo frame on the right. She makes frames of different measurements, but keeping its thickness, which is 4 cm, as shown in the drawing. How can you determine the size of the space for the photograph from the frame area?
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