The length of the shadow is 8. 06m
How to determine the lengthThe Pythagorean theorem states that the square root of the hypotenuse is equal to the sum of the squares of the other two sides
This is expressed as;
a² = b² + c²
Where;
a is the hypotenuseb is the opposite sidec is the adjacent33² = 32² + c²
1089 = 1024 + c²
collect like terms
c² = 1089 - 1024
c² = 65
Find the square root
c = √65
c = 8. 06m
Hence, the value is 8. 06m
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Convert to standard form y+4= -3(x+1)
Answer:
3x + y = - 7-----------------------------------
The standard form of linear equation is:
ax + by = cConvert the given equation in below steps:
y + 4 = - 3(x + 1) Distributey + 4 = - 3x - 33x + y = - 3 - 4 Collect variables in one side3x + y = - 7 SimplifyWhat does m<2 mean in geometry?
Answer: I hope this is helpful mark me brainlist if this apply to you
Step-by-step explanation:
The square meter, also called the meter squared, is the International System of Units (SI) unit of area. The symbol for square meters is m2. Less formally, square meter is sometimes abbreviated as sq m.A metre square is a square with sides one metre in length – it refers to the shape and the side length, not the area. By contrast, a square metre is an area and can be any shape.The basic unit of length is the meter and is denoted as. In geometry, can be used as a variable to denote a line and can be used to name a point. In algebra, denotes the slope of a line in the equation y = m x + c .
What is function definition with example?
A function is defined as a relation between a set of inputs having one output each.
Say, there is an element x in the sets of input, now it can be paired with no more than one y in the sets of output. We should note that the same y can be paired with different x's, but not the reverse. All linear equations, with the exception of vertical and horizontal lines, are functions.
The function is generally written as "f(x)" where x is the input value.
let us take an example-
f(x) = x/2
here, f(x) is a function because each input "x" has a single output "x/2":
• f(2) = 1
• f(5) = 2.5
• f(−12) = −6
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The equation of a parabola is y = a(x - 1)^2 + k and the points (2, 6.5) and (-1, -1) lie on the parabola. Determine the maximum value of the parabola.
The maximum value of the parabola is represented by y-vertex whose value is 9.
What is a Quadratic Function?
The quadratic function can represent a quadratic equation in the Standard form: ax²+bx+c=0 where: a, b and c are your respective coefficients. In the quadratic function, the coefficient "a" must be different than zero (a≠0) and the degree of the function must be equal to 2.
For solving a quadratic function you should find the discriminant: Δ=b²-4ac . And after that you should apply the discriminant in the formula:[tex]x=\frac{-b\pm\sqrt{\Delta} }{2a}[/tex] .
The question gives a quadratic equation and two points, but you do not know some coefficients. Then, you should find the unknown coefficients and after that, you should find the y-vertex of the parabola ([tex]y_v=\frac{-{\Delta} }{4a}[/tex]).
For finding the coefficients, you should solve the system of equations.
y = a(x - 1)² + k -> points (2, 6.5) and (-1, -1), thus
6.5=a(2-1)² + k (1)
-1=a(-1-1)² + k (2)
Simplifying the equations
6.5=a(1)² + k ( 1 )
-1=a(-2)² + k (2)
6.5=a+ k ( 1 )
-1=4a+ k (2)
Multiply equation 1 by -1
-6.5=-a- k ( 1 )
-1=4a+ k (2)
Sum equations 1 and 2
-7.5=3a
a= -2.5
If a= -2.5, from equation 1, you have
-6.5=-a- k
-6.5=-(-2.5)- k
-6.5=2.5- k
k=2.5+6.5
k=9
Then , the parabola equation is y= -2.5 (x-1)² +9. You can rewrite it as:
y=-2.5(x²-2x+1)+9
y= -2.5x²+5x-2.5+9
y= -2.5x²+5x+6.5
Find y-vertex[tex]y_v=\frac{-{\Delta} }{4a}=y_v=\frac{-{(b^2-4ac)} }{4a}=\frac{-{(5^2-4*(-2.5)*(6.5))} }{4*(-2.5)}=\frac{-90}{-10} =9[/tex]
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What is a centroid of a triangle?
Answer:
The point in which the three medians of the triangle intersec
Step-by-step explanation:
The rectangular prism below is labeled with its measured dimensions. Taking measurement error into account, what are the minimum and maximum possible volumes?
Minimum possible volume =
ft³
Maximum possible volume =
ft³
The minimum possible volume of this rectangular prism is 176.78 ft³.
The maximum possible volume of this rectangular prism is 131.11 ft³.
How to determine the minimum and maximum possible volumes?Mathematically, the volume of a rectangular prism can be calculated by using this formula:
Volume = L × W × H
Where:
L represents the length of a rectangular prism.H represents the height of a rectangular prism.W represents the width of a rectangular prism.In order to determine the minimum possible volume of this rectangular prism, we would add the greatest possible error to each measurement and then multiply as follows:
Vmin = (3.5 + 0.25) × (8.4 + 0.25) × (5.2 + 0.25)
Vmin = 3.75 × 8.65 × 5.45
Minimum possible volume, Vmin = 176.78 ft³.
In order to determine the maximum possible volume of this rectangular prism, we would subtract the greatest possible error from each measurement and then multiply as follows:
Vmax = (3.5 - 0.25) × (8.4 - 0.25) × (5.2 - 0.25)
Vmax = 3.25 × 8.15 × 4.95
Maximum possible volume, Vmax = 131.11 ft³.
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If m<1 = 128, then m<8=
Answer:
m<8=1024
Step-by-step explanation:
Since they are asking for m<8, we do 128*8=1024.
Ace Guitars produces acoustic and electric guitars. Each acoustic guitar yields a profit of $30 and requires 2 work hours in Factory A and 1 work hours in Factory B. Each electric guitar yields a profit of $50 and requires 2 work hours in Factory A and 3 work hours in Factory B. Each factory operates for at most 12 hours each day. Graph the feasible region. Then, find the number of each type of guitar that should be produced each day to maximize the company’s profit.
Choose all equations that would be needed to graph the feasible region.
Inequalities to support the questions
2x + y ≤ 12 2x+ 3y ≤ 12x ≥ 0, y ≥ 0What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
Given:
Each factory operates for at most 12 hours each day.
let maximum profit by factory A be x and Factory B be y.
Then, Inequalities to support the questions
2x + y ≤ 12
and, 2x+ 3y ≤ 12
and, x ≥ 0, y ≥ 0
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A translation maps △ABC to △A'B'C' using the vector. A second translation maps △A'B'C' to △A''B''C'' using the vector. Write a rule for translating △ABC to △A''B''C'' .
The rule for translating △ABC to △A''B''C'' is (x, y) ⇒ (1, 3)
How to determine the translation rule?The translation of the triangles are given as
△ABC to △A'B'C' to △A''B''C'' .
Also, we have the vector transformation to be:
Vector (-3, 5)Vector (4, -2)When these vectors are combined, we have
(x, y) ⇒ (-3, 5) + (4, -2)
Combine the vectors
(x, y) ⇒ (-3 + 4, 5 - 2)
Evaluate the like terms
(x, y) ⇒ (1, 3)
Hence, the translation rule is (x, y) ⇒ (1, 3)
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Complete question
A translation maps △ABC to △A'B'C' using the vector (-3, 5). A second translation maps △A'B'C' to △A'B'C' using the vector (4, -2). Write a rule for translating △ABC to △A''B''C'' .
The numerator of a fraction is 2 less than its denominator. When both the numerator and denominator are increased by 3, the fraction is increased by 3/20. Find the original fraction.
Using the given information, the original fraction is 3/5
Determining the numerator and the denominator of a fractionFrom the question, we are to determine the original fraction.
Let the numerator of the fraction be x and the denominator be y.
From the given information,
"The numerator of a fraction is 2 less than its denominator"
That is,
x = y - 2 ----------- (1)
and
"When both the numerator and denominator are increased by 3, the fraction is increased by 3/20"
That is,
(x + 3)/(y + 3) = x/y + 3/20
Then,
(x + 3)/(y + 3) = (20x + 3y)/20y
(x +3)(20y) = (y + 3)(20x + 3y) ---------- (2)
Substitute the value of x into equation (2)
((y - 2) +3)(20y) = (y + 3)(20(y - 2) + 3y)
(y - 2 +3)(20y) = (y + 3)(20y - 40 + 3y)
(y +1)(20y) = (y + 3)(23y - 40)
20y² + 20y = 23y² - 40y + 69y - 120
23y² - 20y² - 40y + 69y - 20y - 120 = 0
3y² + 9y -120 = 0
Divide through by 3
y² + 3y - 40 = 0
y² + 8y - 5y - 40 = 0
y(y + 8) -5(y + 8) = 0
(y - 5)(y + 8) = 0
y - 5 = 0 OR y + 8 = 0
y = 5 OR y = -8
Substitute the values of into equation (1)
x = y - 2
When y = 5
x = 5 - 2
x = 3
When y = -8
x = -8 - 2
x = -10
Ignoring the negative values, the fraction is 3/5
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What is the rule for obtuse triangle?
Answer:
makes over a 90 digre angle
Step-by-step explanation:
A school custodian ordered p rolls of paper towels. The paper towels are sold and boxes of eight write a expression that shows the number of boxes ordered.
The expression that shows the number of boxes ordered is 8p.
What is an expression?Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.
Since the school custodian ordered p rolls of paper towels and the paper towels are sold in boxes of eight.
The expression will be:
= Number of rolls × 8
= p × 8
= 8p
The expression is 8p.
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Which of the following function pairs are inverses?
A) f(x)=4 x² and g(x)∛x
B) f(x)=x²-16 and g(x)=x-4
C) f(x)=5 x-3 and g(x) x+350/5
D) f(x)=-2 x and g(x)1/2 x
The function pairs that are inverse functions are (c) f(x) = 5x - 3 and g(x) = (x + 3)/5
How to determine the inverse of the functions?Function (a)
This function is given as
f(x) = 4x²
The function needs to be represented as an equation
So, we have
y = 4x²
Swap the positions of x and y
x = 4y²
So, we have
y² = x/4
Take the square root of both sides
y = 1/2√x
So, the inverse function is
g(x) = 1/2√x (not the same as the option)
Function (b)
This function is given as
f(x) = x² - 16
The function needs to be represented as an equation
So, we have
y = x² - 16
Swap the positions of x and y
x = y² - 16
So, we have
y² = x + 16
Take the square root of both sides
y = √x + 16
So, the inverse function is
g(x) = √ x+ 16 (not the same as the option)
Function (c)
This function is given as
f(x) = 5x - 3
The function needs to be represented as an equation
So, we have
y = 5x - 3
Swap the positions of r and y
x = 5y - 3
So, we have
5y = x + 3
This gives
y = (x + 3)/5
So, the inverse function is
g(x) = (x + 3)/5
Hence, the function pairs are (d) f(x) = 5x - 3 and g(x) = (x + 3)/5
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Without using a calculator, find the value of sin^2(55) + cos^2(55) - sin(60)/cos(30)
Answer:2 minus the square root of 3 divided by 2
Step-by-step explanation:
What is Incentre of triangle ABC?
The Incenter of triangle ABC is I = (ax1+bx2+cx3 / a+b+c , ay1+by2+cy3 / a+b+c).
Given:
Let I be the incenter of triangle ABC.
Let A(x1,y1) ,B(x2,y2) and C(x3,y3) are vertices.
Let a,b and c are lengths of the sides AB,BC and AC.
we know that:
Incenter I = (ax1+bx2+cx3 / a+b+c , ay1+by2+cy3 / a+b+c)
we can find a, b and c values using the distance formula between the vertices.
AB = a = [tex]\sqrt{(x2-x1)^2 + (y2-y1)^2}[/tex]
BC = b = [tex]\sqrt{(x3-x2)^2 + (y3-y2)^2}[/tex]
AC = c = [tex]\sqrt{(x3-x1)^2 + (y3-y1)^2}[/tex]
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What is the answer 5 19x2?
As per the multiplication operation, the value of 519 x 2 is 1038
Multiplication:
In math, multiplication means the repeated addition of groups of equal sizes.
Given,
Here we need to find the value of 519 x 2.
AS per the multiplication table, the value of 519 x 2 is calculated by using the following steps:
=> 2 × 9 = 18.
∴ put down 8 and carry 1
=> 2 × 1 + 1 = 2 + 1 = 3.
∴ put down 3
=> 2 × 5 = 10.
∴ put down 0 and carry 1
Finally, combine all these values, the we get 519 x 2 = 1038.
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Why is 1 not a prime number but 2 is?
For 1, the number of positive divisors or factors is only one i.e. 1 itself. So, number one is not a prime number.
What are prime numbers ?
Prime numbers are numbers greater than 1. They only have two factors, 1 and the number itself. This means these numbers cannot be divided by any number other than 1 and the number itself without leaving a remainder.
Numbers that have more than 2 factors are known as composite numbers.
For a number to be called as a prime number, it must have only two positive factors. Now, for 1, the number of positive divisors or factors is only one i.e. 1 itself. So, number one is not a prime number.
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Fathi has $ 1.10 in his printing account. Each sheet of paper he uses reduces his printing account balance by $0.25 Fathi wants to print out a PDF document that is 47 pages long. To save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. After Fathi prints, what will be the balance in his printing account?
As described in the algebra the balancing amount is - 1.8375
what is algebra?
Mathematics has several different subfields, including algebra. Algebra, broadly stated, is the study of mathematical symbols and the guidelines for using these symbols in formulas.
Solution;
Balance of account = account amount - account used
= 1.10 - 0.25 * ( 47/2)
= 1.10 - 0.25* 11.75
= 1.10 - 2.9375
Balance of account = - 1.8375
Hence, by algebra the balancing amount of account is - 1.8375
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The box-and-whisker plots below (sometimes called boxplots) summarize the noon temperatures for each city.
Use the box-and-whisker plots to answer the questions.
Comparing the box-and-whisker plots for both data of each city, we have:
a. City B had more noon temperatures above 76°F
b. Both had the same interquartile range.
c. City B had a larger median noon temperature
d. City A had the largest noon temperature.
How to Analyze a Box-and-whisker Plot?The box-and-whisker plot has the following values it displays about a data distribution:
Minimum value: This is the value at the beginning of the left whisker.Lower quartile (Q1): This is indicated by the beginning of the edge of the box, 25% of the data are below this point.Median value: the line that divides the box is the median value which is 50% of the data.Upper quartile (Q3): This is indicated by the end of the edge of the box, 75% of the data are below this point.Maximum value: This is the largest data point and is located at the end of the right whisker.Interquartile range = Q3 - Q1
Analyzing the box-and-whisker plots given above, we have the following to conclude:
a. City B had more noon temperatures above 76°F because about more than 50% of the data are above 76°F.
b. Interquartile range for City A = Q3 - Q1 = 75 - 68 = 7
Interquartile range for City B = Q3 - Q1 = 80 - 73 = 7
Both had the same interquartile range.
c. Median for City A = 70
Median for City B = 78
City B had a larger median noon temperature
d. City A had the largest noon temperature of 85.
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Which triangle center is equidistant to the sides of a triangle?
The triangle center that is equidistant to the sides of a triangle is Incenter .
In the question ,
we have asked about the what is the name of the center that is equidistant from the sides of the triangle .
Incenter is defined as the meeting point of all the interior angle bisectors of the triangle .
We know that the inscribed circle is the circle that is inside triangle and touches all its sides.
and we know that the center of the circle is equidistant from all points that lie on circle.
So, center of inscribed circle (incentre will be equidistant from all sides of the triangle.) .
Therefore , the incenter is equidistant to the sides of the triangle .
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Pedro vive cerca del bosque, el terreno de su propiedad ocupa 15 metros en total, su casa ocupa sólo 6 metros, tiene un huerto el cual ocupa 4 metros y el resto es un espacio donde puede disfrutar de la naturaleza ahí encuentra algunas clases de musgos que le dan un aspecto maravilloso al bosque.” ● Representa con fracciones el espacio que ocupa la casa, el espacio que ocupa el huerto y deduce qué fracción representa el resto del terreno, a lado de cada fracción realiza la representación gráfica de cada una, usando las herramientas como tablas o insertar formas en PowerPoint.
El espacio que ocupa la casa sería 6/15, el espacio que ocupa el huerto sería 4/15 y el espacio restante del terreno sería 5/15.
¿Cómo representar las fracciones del terreno?Para representar en forma de fracciones el área de los diferentes espacios del terreno de Pedro debemos tener en cuenta que el total tiene 15 metros. Adicionalmente, cuando representamos una fracción estamos informando cuántas unidades de un número x de unidades estamos utilizando. Por ejemplo, en este caso del total (15 metros) del terreno que tiene Pedro, él esta utilizando 6 metros para su casa. Esta fracción se representaría así:
6 / 15
Por otra parte, la fracción para representar el área del huerto de Pedro debe seguir los mismos lineamientos que la anterior, es decir en el numerador (número de la parte de arriba) ponemos el número de unidades que utilizamos y en el denominador (número de la parte de abajo) ponemos el número total de unidades disponibles. Entonces la fracción del huerto sería:
4 / 15
Por ultimo, para saber cuántas unidades quedan disponibles del terreno de Pedro, debemos restarle al total de terreno la cantidad de espacio que usamos:
15 - 4 - 6 = 5
De acuerdo con lo anterior, el espacio disponible serían 5 metros, que expresado en fraccionarios sería:
5 / 15
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An audio cable is 14.1 dm long. How long is the cable in meters?
Answer: 1.41 meters
Step-by-step explanation:
14.1 decimeters to meters
Decimeters are 10 times smaller than meters, so you divide the value by 10 to get meters
14.1/10 = 1.41
1.41 meters
8+[8+(−1⋅(−3)−4)]÷(−7)
Answer:
8 + [8 + (-1*(-3)-4)]÷(-7) = 7/1 = 7
Hope this helped answer your question!
Answer:
7
Step by Step Explanation:
How do I divide 16.64 by 6.40?
Answer: 2.6
Step-by-step explanation:
Use long division:
16.64 over 6.4
First multiply the numerator by 10 to get 166.4 over 64
Then divide 166.4 by 64 (using long division)
At the end you'll get 2.6
Is the exponential function 5 x?
It is Growing Exponential function because the base is greater than 1 and the exponent has a positive sign.
What is exponential decay function?
A exponential decay is a function that, as the name implies, decays exponentially. So it decays fast at the beginning and slower as the value of the variable increases.
[tex]y=5^x[/tex]
It is a function called "Exponential function". The base determines the growth or decay of the function.
If base > 1, then the function grows, otherwise if base is between 0 and 1, the function decays.
Here, the base is positive and it's not 1 or 0.
If we have
[tex]y=5^{-x}[/tex]
this function can be rewritten in this way:
[tex]y=(1/5)^x[/tex]
Here, base between 0 and 1, the function decays
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Sheelu bought a scooter for Rs. 55000. While selling the value of the scooter decreased to Rs. 50600. Find the percentage of decrease in the value of the scooter.
Answer:
8%
Step-by-step explanation:
1. Subtract:
55000 - 50600 = 4400
2. Divide:
4400/55000 = 0.08
A rectangular paperboard measuring 21 in long and 16 in wide has a semicircle cut out of it, as shown below.
Find the area of the paperboard that remains. Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.
The area of the paperboard remaining after a semicircle is cut out of it is 235.52 in².
What is area?The area is the amount of space within the perimeter of a 2D shape.
To calculate the area of the rectangular board that remain, we use the formula below.
Formula:
A' = lw-[πr²/2]............. Equation 1Where:
A' = Area of the paperboard leftl = Length of the paperboardw = width of the paperboardr = Radius of the semi circleFrom the question,
Given:
l = 21 inw = 16 inr = 16/2 in = 8 inπ = 3.14Substitute these values into equation 1
A' = (21×16)-(3.14×8²/2)A' = 336-100.48A' = 235.52 in²Hence, the area of the paperbaord left is 235.52 in².
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What is the point of a triangle called?
The points of a triangle are known as vertices, and various triangle points are centroid, circumcenter, incenter and orthocenter.
A triangle is a three-sided polygon.
The triangle's three points are known as vertices.
Several triangle-related points:
A triangle's centroid is the point where three medians cut each other. A median is the line that connects a vertex to the opposite side's midpoint.At the circumcenter, the three perpendicular bisectors of a triangle's sides meet. The circumcenter is also the center of the circle formed by passing through the three vertices of the triangle. The orthocenter is the point at which the triangle's altitudes, or the perpendicular lines between each vertex and the opposite side, intersect.The incenter of a triangle is the point at which the three bisectors of the triangle's interior angles intersect. This is also the center of the inscribed circle, also known as the triangle's incircle.A triangle's Euler line is the line that connects the orthocenter, circumcenter, and centroid. It also contains the Nine Point Circle's center.Thus, the points of a triangle are known as vertices, and various triangle points are centroid, circumcenter, incenter and orthocenter.
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5. Julia is playing a computer game. To enter a new quest she has
to pay a "tax" of 2.5 points, but she expects to gain 75 points.
For each quest, how many points can she gain overall?
The number of points gained overall by Julia playing the game is 30 point
How to determine the number of points gained overall?From the question, we have the following parameters that can be used in our computation:
Tax paid for a new quest = 2.5 points
Total points gained playing the game = 75 points
The above parameters can be represented as
The number of points gained overall = Total points gained playing the game/Tax paid for a new quest
Substitute the known values in the above equation, so, we have the following representation
The number of points gained overall = 75/2.5
Express as a correct fraction
So, we have the following representation
The number of points gained overall = 750/25
Evaluate the quotients
So, we have the following representation
The number of points gained overall = 30
Hence, the number of points gained overall =is30
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What is the value of t??
1.4t - 0.4 ( t - 3.1 ) = 5.8
Please explain step by step on how I could get this answer!
1.4t - 0.4(t-3.1)=5.8
Combine terms in paratheses
1.4t - 0.4t + 1.24 = 5.8
Combine t's
(1)t + 1.24 = 5.8
Subtract 1.24 over
t = 4.54