Sound decibel are not additive because humans listen to sound logarithmically and LaTrenda is correct
What is sound intensity of the two instrumentOsman is not correct in his claim that 88 + 75 decibels would be 163 decibels. The decibel unit is not an additive unit, meaning that when you add the decibel levels of two different sound sources, you do not simply add the decibel levels.
Instead, adding the decibel levels of two different sound sources together would give you the total sound pressure level (SPL) of the combined sound.
To calculate the SPL of the combined sound, you would need to add the intensities of the two sounds and then calculate the decibel level of the combined sound using the formula:
SPL (dB) = 10 log10 (I1/I0) + 10 log10 (I2/I0)
Where I1 and I2 are the intensities of the two sound sources and I0 is the reference intensity, which is the threshold of human hearing.
It would make more sense to add the intensities of the two sounds and then calculate the number of decibels, because the human ear perceives loudness of sounds logarithmically, not linearly.
So, LaTrenda would be correct in this scenario.
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Points C and D on the coordinate grid below show the positions of two midfield players of a soccer team:
The coordinate grid is shown from negative 4 to positive 4 on the x-axis and negative 4 to positive 4 on the y-axis. From the origin, point C is 1.5 units to the left and 3 units up. From the origin, point D is 1.5 units to the right and 3 units up.
Which statement best describes the relationship between the positions of the two midfield players?
The correct option 3. D is C reflected across the y-axis; only the signs of the x-coordinates are different for C and D.
Explain the meaning of reflection of the coordinates?A figure is transformed into a reflection by a transformational process. In a point, linear line, or a plane, figures can be reflected. The image and preimage coincide when reflecting a graphic in a line or a point.The locations of C and D's coordinates are supplied to us as follows:
Point C is 1.5 units towards the left as well as 3 units up from the origin.x = -1.5 units away from the origin. Origin is at 1.5 and 3 up, or y = 3.As a result, C is the first coordinate just on axis (-1.5, 3).
Point D is 1.5 units toward the right as well as 3 units up from the origin.X is equal to 1.5 units to the origin's right, while Y is equal to 3 units to the origin.As a result, D is the second coordinate upon that axis (1.5, 3).
We can observe that the sign of the x-coordinates for C and D is opposite.It would be a reflection over the y-axis if the sign of the x coordinates were opposite.Thus, the statement D is C mirrored across the y-axis, with the only difference between C and D being the sign of the x-coordinates, best captures the relationship between the locations of the 2 midfield players.
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The complete question is-
Points C and D on the coordinate grid below show the positions of two midfield players of a soccer team:
Coordinate grid shown from negative 4 to positive 4 on x-axis and negative 4 to positive 4 on y-axis. From the origin, point C is 1.5 units to the left and 3 units up. From the origin, point D is 1.5 units to the right and 3 units up.
Which statement best describes the relationship between the positions of the two midfield players?
D is C reflected across the x-axis; only the signs of the x-coordinates are different for C and D.D is C reflected across the x-axis; only the signs of the y-coordinates are different for C and D.D is C reflected across the y-axis; only the signs of the x-coordinates are different for C and D.D is C reflected across the y-axis; only the signs of the y-coordinates are different for C and D.Is this set of 4 vectors a basis for R3?
A basis of R3 cannot have more than 3 vectors, because any set of 4 or more vectors in R3 is linearly dependent.
Vectors v1, v2, . . . , v k ∈ V is called linearly dependent if they satisfy a relation of:
r₁v₁+r₂v₂+ · · · + rkvk = 0,
where the coefficients r1, . . . , r k ∈ R are not all equal to zero.
Otherwise vectors v1, v2, . . . , v k are called linearly independent. That is, if
r₁v₁+r₂v₂+ · · · +rkvk = 0 =⇒ r₁ = · · · = rk = 0.
An infinite set S ⊂ V is linearly dependent if there are some linearly dependent vectors v₁, . . . , v k ∈ S.
Otherwise, S is linearly independent.
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Identify the transformations of the function g(x)=-½(x-6)2+3 compared to the parent function f(x)=x2
If [tex]f(x)=x^2[/tex] and [tex]g(x) = -\frac{1}{2}(x-6)^2 + 3[/tex],
then:
the negative is a reflection over the x-axis.the [tex]\frac{1}{2}[/tex] is a vertical compression by a factor of 1/2the [tex]{}-6[/tex] shifts the graph 6 units to the rightthe [tex]{}+3[/tex] shifted the graph up by 3 units.So the graph has been flipped upside-down, squished vertically, moved right and up.
What is the equation of the line that passes through (0, 3) and is perpendicular to y = 34x + 5?.
The equation of a line that is perpendicular to the line y = 34x + 5 and passes through the point (0, 3) is y = -34x + 3
The slope-intercept form of the equation of a line is y = mx + c, where
m is the slope of the line c is the y-intercept.The slope of a line perpendicular to another line is the negative reciprocal of the original line's slope. In this case, the original line has a slope of 34, so the slope of the line that is perpendicular to it is -1/34.
To find the y-intercept of the line, we can use the point (0,3) that the line passes through. Substituting the x and y values of this point into the equation of the line, we get 3 = -34(0) + c, which simplifies to c = 3.
So the equation of the line that is perpendicular to y = 34x + 5 and passes through (0, 3) is y = -1/34x + 3
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What quadrant is ordered pair 4 3?
An ordered pair (x,y) represents a point on a coordinate plane, where x is the horizontal position and y is the vertical position. The quadrant in which this point lies can be determined by the signs of the x and y coordinates.
The quadrant that contains the point (4,3) is Quadrant 1. This is because both the x-coordinate (4) and y-coordinate (3) are positive, indicating that the point lies in the top-right region of the coordinate plane.
Can you construct a triangle with sides 17 cm 7 cm 8 cm?
Answer:
In order to form a triangle, the sum of the length of two sides should be greater than the length of the third side. This is called the triangle inequality theorem.
Given the side lengths of 17 cm, 7 cm, and 8 cm, we can see that 17 cm is the longest side. To form a triangle, the sum of the other two sides (7 cm and 8 cm) should be greater than 17 cm.
7 cm + 8 cm = 15 cm which is less than 17 cm. Therefore, it is not possible to construct a triangle with sides 17 cm, 7 cm, and 8 cm.
Step-by-step explanation:
Answer:
No u cannot
Step-by-step explanation:
7+8 = 15 which is less than 17 meaning u cannot create a triangle with this
A certain car averages 15 kilometers per liter of gasoline. How many meters can the car travel on one mililiter of gasoline
Answer: 250
Step-by-step explanation: :)
Answer: 250
Based on the given conditions, formulate:: 15 x 100 over 60
Simplify fraction(s): 5 x 50
Calculate the product or quotient: 250
Which is true about the solution to the system of inequalities shown?
ys-x-1
y≤-x-3
All values that satisfy y ≤
All values that satisfy y ≤
x − 1 are solutions.
x-3 are solutions.
-5-4-3-2-1.
77
The statement true about the system of inequalities solution is option A, all the values of satisfy y ≤ 1/3x -1.
What is system of inequalities?One or more linear inequalities in each of the same two variables make up a system of linear inequalities in two variables. A linear inequality's solution is an ordered pair that resolves all of the system's inequalities, and the inequality's graph is a representation of all of the system's solutions.
Given the graph of the system of inequalities we can see that the inequality y ≤ 1/3x -1, comprises of all the values under the blue shaded region. This region also includes the graph of the second inequality.
Hence, option A is correct as all the values of satisfy y ≤ 1/3x -1.
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graph each equation. determine the solution of the system of equations. x+2y=4 3x+2y=0
Answer:
(-2,3) or x= -2 and y= 3
Step-by-step explanation:
I didn't graph this, but you could.
For the first equation: Subtract x from both sides to get 2y= -x +4
Next divide both sides by 2 to get y= -1/2x + 2 (Now graph this)
For the second equation subtracted both sides by -3x to get 2y= -3x
Next, divide both sides by 2 to get y= -3/2x (Now graph this)
I used elimination. I wrote both equations out then subtracted 2y from both of them then did -2x = 4
x= -2
then I substitued -2 + 2y = 4
6 = 2y
y=3
What is meant by value Mcq?
The combination of quality, efficiency, price, and service that guarantees the ultimate economy and satisfaction of the customer is referred to as value.
What's the MCQ's response?
A multiple choice (MC), objective response, or MCQ (multiple choice question) is a type of objective assessment in which participants are required to choose only the right responses from a list of options.
What does "value analysis" mean?
Value analysis (VA), often referred to as Value Engineering (VE) and Value Management (VM), is a methodical and function-based approach to enhancing the value of initiatives, projects, or processes. Alternative methods of achieving goals are found using a combination of analytical and creative strategies known as value analysis.
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Find the value of tan D rounded to the nearest hundredth, if necessary.
The value of the angle tan(D) will be 53.13°.
What is trigonometry?The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry.
The trigonometric functions, also known as a circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.
Given that the sides of the triangle are BC = 32 and CD = 24.
The value of tan(D) is calculated as,
tan(D) = 32 / 24
D = tan⁻¹ (32 / 24 )
D = 53.13°
The value of angle D will be 53.13°.
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Which of the following is not a way to determine whether a relation is a function?
That which is not a way to determine whether a relation is a function is this:
D. Determine if the relations’ graph forms a line.
How can one determine whether a relation is a function?One notable way of determining if a relation is a function is whether an input results in a single output. A function is easily identified by the ability to generate a single output when a single input is inserted.
While the input value is the domain, the output translates to the range. Checking whether the relation's graph forms a line is not a viable way of determining whether a relation is a function.
Options:
A.
Use the vertical line test on a graph of the relation.
B.
Check to see if each input maps to only one output.
C.
There should be no duplicated x-coordinates in the ordered pair set.
D.
Determine if the relations’ graph forms a line.
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For a family gathering, Bianca made 5 meat loaves using 8 pounds of ground beef. She also made 16 hamburgers using 6 pounds of ground beef. Part A Each meat loaf was made with the same amount of ground bee How much ground beef was in each meat loaf?
A. 1- 8/5
B. 5/8
C. 1- 3/5
D. 8- 1/5
Answer: Each meat loaf was made with the same amount of ground beef, and Bianca made 5 meat loaves using 8 pounds of ground beef. To find the amount of ground beef in each meat loaf, we can divide the total amount of ground beef used to make the meat loaves by the number of meat loaves.
So, the amount of ground beef in each meat loaf is 8 pounds / 5 meat loaves = 1.6 pounds
In terms of the options provided, 1.6 pounds is equal to 8/5 (Option A)
Step-by-step explanation:
Explain how to balance the equation. p-56=139
Use a trigonometric ratio to solve for a. Round to two decimal places as necessary!!
HELP, and can someone explain how to get the answer?
How do you find the range of a function in class 11 maths?
The range of a function is the set of all the y-values that you get when you plug all of the possible x-values into the function. It is also called a co-domain of function.
To find the range of function write down the function as y=f(x). Find all the minimum to a maximum value of y that satisfies f(x). The values obtained are the range of function. Plot the range on the graph.
For example, if you want to find the range of f(x) = 3x^2 + 6x -2. The lowest y-coordinate is at the vertex, -5, and the values for set y expand infinitely above this point. This means that the range of the function is y={-5, R}
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ELECTRIC CAR For every hour x that Eva’s electric car charges, she can drive the car 7.5 miles. Eva needs to drive at least 60 miles tomorrow.
Part A
What inequality represents the situation in terms of x hours?
Multiple choice question.
A)
60x≥7.5
B)
7.5x≤60
C)
7.5x≥60
D)
60x≤7.5
The inequality that represents the situation in terms of x hours is; B: 7.5x ≤ 60
How to solve Inequality Word Problems?We are told that for every hour x that Eva’s electric car charges, she can drive the car 7.5 miles. Eva needs to drive at least 60 miles tomorrow.
Now, 7.5 miles represents the speed per hour and we know that formula for distance is;
distance = speed * time
Since she wants to drive at least 60 miles tomorrow, then it means the number of miles must be greater than or equal to 60. Thus, the inequality that models the given situation is;
7.5x ≤ 60
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Identify the relation that is a function.
1) city name to state name
2) last name to phone number
3)days of the week to the months of the year
4)number of apples purchased to the cost of the apples
Decide on the input values. Choose the output values. You should classify a connection as a function if each input value results in only one output value.
Which relation is also a function?Any possible input value will result in exactly one output value, which is the definition of a function. "The output is a function of the input" is how we phrase it. The range is comprised of the output values, whereas the domain is made up of the input values. But not all relations are functions, and vice versa.
Formulas or graphs are typically used to depict functions.There are many different kinds of relations and functions, including empty relations, universal relations, reflexive relations, symmetric relations, transitive relations, equivalence relations, constant functions, polynomial functions, identity functions, on-to-one functions, onto functions, bijective functions, etc.
No relationship has the characteristics of a function if each input does not have a distinct output.There are nine different forms of mathematical relations: empty relation, full relation, reflexive relation, irreflexive relation, symmetric relation, anti-symmetric relation, transitive relation, equivalence relation, and asymmetric relation.
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Why is the formula for the area of a triangle 1 2BH?
The formula for the area of a triangle is 1/2bh. This formula can be derived from the area of a parallelogram.
A parallelogram is a four-sided shape with two pairs of parallel sides. To find the area of a parallelogram, you need to multiply the base, b, by the height, h. This will give you the area of the parallelogram, which is bh. To find the area of a triangle, you need to divide the area of a parallelogram by two since a triangle has only one set of parallel sides. Therefore, the formula for the area of a triangle is 1/2bh. To calculate the area of a triangle, you need to multiply the base by the height and then divide the result by two. For example, if the base of a triangle is 8 cm and the height is 4 cm, the area of the triangle is 1/2 × 8 × 4 = 16 cm2.
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A seagull flies 15 feet above the surface of the
ocean. The table shows the location of several
other objects in relation to the ocean's surface.
Sort the objects into the appropriate bins by their
distances to the ocean surface as compared to
the seagull's distance.
Submarine
Petican
Fish
Airplane
Farther from the Ocean's
Surface than the Seagull is
Shark
Object
Fish
Shark
Airplane
Submarine
Pelican
Closer to the Ocean's
Surface than the Seagull is
Location in
Comparison to the
Ocean's Surface (feet)
-6
-50
150
-218
9
Answer: A seagull flies 15 feet above the surface of the ocean. The table shows the location of several other objects in relation to the ocean’s surface. Object Location in Comparison to the Ocean’s
Step-by-step explanation: Surface:Fish: –6 feet Shark: –50 feet Airplane: 150 feet Submarine: –218 feetPelican: 9 feet
What are the 4 types of exponents?
The 4 types of exponents are positive, negative, zero, and rational.
When an expression or statement of specific natural numbers (0 to ∞), is represented as repeated power by multiplication of its units, then the resulting number is an Exponent.
For example, take the value 7⁵. Here the number 7 is called “base” and the number 5 (up) is called the exponent or power of that mathematical sequence. Now, to precisely calculate the value of this exponent, simply multiply the base number as many times as denoted by the power. So, for this case, it would be 7×7×7×7×7 = 16807.
Thus, 16807 can be represented in the form of exponents as 7⁵.
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Are infinite solutions zero?
There are an endless number of solutions to a system of m n linear homogeneous equations with m n fewer equations than unknowns. As a result, such a system always has both the zero solution and the nonzero solution.
What is infinite solution?
Both sides of an infinite solution are equal. As an illustration, 6x + 2y - 8 = 12x + 4y - 16 Using a formula or method for infinite solutions, you can simplify the equation and make both sides to equal one another, making it an infinite solution. The concept of infinite connotes boundlessness or infinity. Typically, it is denoted by the symbol "".
What is an infinite number?
There are an unlimited number of numbers in a series. a collection of infinitely many natural integers, as an illustration. The initial value 0, and the initial value infinite, are represented by the logarithms and +, respectively.
The original values 0 and infinity are similarly treated when we consider both of the conceivable values and + as a single infinity.
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Show your work
x+2y=-4
-4x-3y=16
x+2y=-4
-4x-3y=16
---------------------------------------------
stepbystep
−2y=4−x - 2 y = 4 - x by −2 - 2 .
The perimeter of a rectangle is 50 inches the length of the rectangle is 10 inches.
We will use the method of linear equations to get the width of the rectangle, which is 15 inches.
Here we are given that the length of the rectangle is 10 inches and the perimeter is 50 inches.
We know that the perimeter of a shape is the length of the boundary of that shape.
The formula for the perimeter of a rectangle is 2(l + b)
= 2 X (length of the rectangle + breadth of the rectangle)
Here length, l = 10 inches, the perimeter is 50 inches, and we have been to consider breadth to be w inches.
Hence we can use the formula of the perimeter and the method of a linear equation to get the width.
Hence we get
2(10 + w) = 50
or, 10 + w = 25
or, w = 25 - 10
or, w= 15 inches.
Hence the width is 10 inches wide.
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Complete Question
The perimeter of a rectangle is 50 inches. The length of the rectangle is 10 inches. Which method can be used to find w, the width of the rectangle?
What is the number below is in the thousandths place value in 45.1672
Step-by-step explanation:
The number in the thousandths place value in 45.1672 is 6.
if f(x)=x^3+13x^2+44x+32 and f(-1)=0, then find all of the zeros of f(x) algebraically
just do the inverse boi
ok is the probability of the curriculum of an
ASAP Please and thank you
Answer:
Obtuse
Step-by-step explanation:
The angle measures add to [tex]180^{\circ}[/tex], so a triangle can be formed.
Since one of the angles has a measure greater than [tex]90^{\circ}[/tex] but less than [tex]180^{\circ}[/tex], the triangle is obtuse.
If 59 of a tank can be filled in 2 minutes, how many minutes will it take to fill the whole tank?.
When 5/9 of the tank is filled in 2 minutes, then it will take 3.6 minutes to fill the entire tank.
The definition of a fraction is a fraction multiplied by another fraction, integer, or a group of variables. Given that the 5/9 tank fills in 2 minutes. The duration of this period in seconds is 60×5= 120 seconds.
So the time taken to fill a 1/9 tank is calculated as follows,
Time taken = 120/5
=24 seconds
The time taken to fill the 9/9 tank (full) is calculated by multiplying 24 seconds and 9, we get,
24×9 = 216 seconds
= 3.6 minutes.
Therefore, the required answer is 3.6 minutes.
The complete question is -
If 5/9 of a tank can be filled in 2 minutes, how many minutes will it take to fill the whole tank?
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Need help with this question
Answer:
87=3x+24
Solve for x.
Step-by-step explanation:
AD=1/2*AB
5y-3=1/2(7y)
Solve for y.
Help me solve this pls because i need to solve this fast help me
Answer:
See below
Step-by-step explanation:
When they are equivalent.....they are equal...so...set them equal
4x+5+x+9=9x+10 solve for x ....first simplify
5x + 14 = 9x+10 subtract 5x and 10 from both sides of the equation
4 = 4x
x = 1