Answer:
A -> 3 × 3/4
B -> 4 × 1/4
C -> 2× 2/3
D -> 3 × 1/6
E -> 2 × 2/4
F -> 4 × 5/6
the sum of two numbers is 300. the difference between the two numbers is 40. what are the two numbers
Answer:
170 and 130
Step-by-step explanation:
Does the commutative property apply to all real numbers?.
The commutative property applies only to addition and multiplication of real numbers.
What is commutative property in math?
This law simply states that with addition and multiplication of numbers, you can change the order of the numbers in the problem and it will not affect the answer. Subtraction and division are NOT commutative.
so as ask in question that, does the commutative property apply to all real numbers?
The commutative property applies to addition and multiplication of real numbers, meaning that a + b = b + a and a * b = b * a for any real numbers a and b.
However, it does not apply to subtraction or division, meaning that a - b ≠ b - a and a / b ≠ b / a for all real numbers a and b.
Therefore, the commutative property applies only to addition and multiplication of real numbers.
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What is the product of the additive inverse and multiplicative inverse of 3 by 7?.
The additive inverse of 3/7 is -3/7, and the multiplicative inverse of 3/7 is 7/3.
A number that gives 0 after adding with its is called an Additive inverse and it gives 1 after multiplication with its is called a multiplicative inverse.
Here, the given number is: 3/7
Let, x be the additive inverse of the number:
3/7+x=0
x=-3/7
Thus, the additive inverse of 3/7 is -3/7.
Now, let y be the multiplicative inverse of 3/7,
⇒3/7*y
⇒1*y=7/3
Thus, the multiplicative inverse of 3/7 is 7/3.
Hence, the product of additive inverse and multiplicative inverse of minus 3 upon 7
⇒-3/7*7/3
⇒-1
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How do you find the range of Class 6?.
The range is calculated as follows by combining the lowest and highest values. Organize the information in ascending or descending order first, then calculate the maximum and minimum values.
The range of a particular data set is the distinction between those maximum and minimum values. Range = Maximum Value–Minimum Value
The range of a set of data is the differential between the collective's maximum and minimum values.
Domain and range are keywords in relations and functions. The range is the set of all potential dependent values produced by a relation from a domain value.
To identify the range, first, arrange the data in ascending or descending order to gain a clear picture of the data's Maximum and Minimum terms.
Then, to get the data range, subtract the lowest value from the largest value in the collection.
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How do you find the inverse of a function in vertex form?.
The inverse of a function in vertex form can be determined by substituting the function in the standard form of a quadratic function
The various steps to find the inverse of a function in vertex form can be noted as -
First, it is required to write the equation in the quadratic function's usual form: y = a(x - h)² + k, where (h, k) is the vertex.The following formula should be changed: x = a(y - k)² + h.Now, by putting y on one side of the equation, solve for y: y = (x - h)/a² + kThe equation can be made simpler by adding -1/a² to the numerator and denominator to get the following result: y = -(x-h)²/a + kThe function will now be in vertex form, with the leading coefficient -1/a, and the vertex (h, k).Read more about vertex form on:
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Find the distance between the points p(8, 2) and q(3, 8). Round to the nearest tenth.
The distance between the given set of points is 7.8 units.
To find the distance between two points in a coordinate plane, we can use the distance formula.
The distance formula states that the distance between two points (x1, y1) and (x2, y2) is given by the square root of ((x2 - x1)^2 + (y2 - y1)^2).
In this case, we are given the points p(8, 2) and q(3, 8). Therefore, we can plug in the coordinates of these points into the distance formula:
Distance = √((x2 - x1)^2 + (y2 - y1)^2)
Distance = √((3 - 8)^2 + (8 - 2)^2)
Distance = √((-5)^2 + 6^2)
Distance = √(25 + 36)
Distance = √61
The square root of 61 is approximately 7.8 which rounded to the nearest tenth is 7.8.
Therefore, The distance between the given set of points is 7.8 units.
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f(x)=(x+1)^2+4
find the zeros, y-int, and vertex.
The zeros, y-intercept and vertex for the given quadratic equation f(x)= (x + 1)² + 4 are respectively,
Zeros- (-1 + 2i)
Y-intercept- 5
Vertex- (-1, 4)
What is an Equation ?An equation is a mathematical term, which indicates that the value of two algebraic expressions are equal. There are various parts of an equation which are, coefficients, variables, constants, terms, operators, expressions, and equal to sign.
For example, 3x+2y=0.
Types of equation
1. Linear Equation
2. Quadratic Equation
3. Cubic Equation
Given that,
f(x) = y = (x + 1)² + 4
y = (x + 1)² + 4
y - 4 = (x + 1)²
So, for vertex
x + 1 = 0
x = -1
y-4 = 0
y = 4
For Zeros, y = 0
y-4 = (x +1)²
(x +1)² = -4
x = -1 + 2i, -1-2i
the zeros are imaginary
For y intercept, x = 0
y-4 = (x +1)²
y = 4 + (1)²
y = 5
Hence, vertex, zeros, and y-int. are respectively (-1, 4), (-1 + 2i), 5
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What is the mirror image of 4 20?.
The mirror image of the coordinates is (4, - 20)
The term coordinates is defined are ordered pairs of points that help us locate any point in a 2D plane or 3D space.
Here we have given the coordinates (4, 20).
And we need to find the mirror image of given coordinates.
As per the definition of coordinates the rule of Mirror image of (x , y ) in the x - axis is written ( x , -y).
Here we have the value of x as 4 and the value of y as 20.
When we apply the rule on the given coordinates then we get the resulting points,
=> (4, 20) = (4, - 20)
Complete Question:
What is the mirror image of the coordinate (4,20)?
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The area of circle Z is 64 π ft. What is the value of r? r = 4 ft
r = 8 ft
r = 16 ft
r = 32 ft
Answer:
8 ft
Step-by-step explanation:
Area of a circle is given by πr² where r is the radius
Here we are given the area A and asked to find the radius
We have Area :
πr² = 64π
Dividing by π on both sides we get
r² = 64
r = ±√64
r = ±8
We can ignore negative values for radius and state that
r = 8 ft
Seven less than double a number is the same as fourteen more than the number, what is that in an algebraic equation
Answer:
2x - 7 = x + 14
What is ten more than 99?.
The answer of 10 more than 99 is 109.
The answer of 10 more than 99 is 109 which can be derived using simple mathematical calculations.
To find 10 more than 99, you can add 1 to the original number 99.
10 + 99 = 109
It's a simple arithmetic operation where you add a specific number, in this case, 10, to the original number.
An arithmetic operation is a mathematical process that combines two or more numbers to produce a new number. The most basic arithmetic operations are addition, subtraction, multiplication, and division.
Addition: It is the process of combining two or more numbers to find their sum. For example, 2 + 3 = 5 is an addition operation.
Subtraction: It is the process of finding the difference between two numbers. For example, 5 - 3 = 2 is a subtraction operation.
Multiplication: It is the process of finding the product of two or more numbers. For example, 3 x 4 = 12 is a multiplication operation.
Division: It is the process of finding the quotient of two numbers. For example, 12 ÷ 3 = 4 is a division operation.
Therefore, The answer of 10 more than 99 is 109.
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¿Cuáles son las medidas de un cono (radio, altura) si su volumen es 500 cm3?
The dimensions of the cylinder are -
{r} = √500/πh
{h} = (500/r²)
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the volume of the cylinder as -
V = 500 cm³
We can write -
V = 500
So, we can write -
πr²h = 500
So, we can write -
{r} = √500/πh
{h} = (500/r²)
Therefore, the dimensions of the cylinder are -
{r} = √500/πh
{h} = (500/r²)
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{Question in english -
What are the measurements of a cylinder (height, radius) if its volume is 500 cm3}
Fernando loves to make music playlists. He likes to keep the same ratio of country songs to rock songs. On his summer playlist, he has 100 country songs and 24 rock songs. On his road trip playlist, Fernando has 25 country songs.
How many rock songs are on Fernando's road trip playlist?
Answer:0 on his road trip playlist
Step-by-step explanation:
S=9 Please help quick8th grade geometry
Considering triangle HRC, the equations that can be used to solve for the value of w are
B. 9² + w² = (√125)²cos y = w / √125sin 36.4 = w / √125cos 53..6 = w / √125tan (90 - x) = 9 / wHow to solve for the value of wThe triangle HRC is a right triangle and can be solved by various methods such as: Pythagoras theorem given by the the formula
hypotenuse² = opposite² + adjacent²
plugging the values as in the problem
m² = s² + w²
(√125)² = 9² + w²
Applying SOH CAH TOA
Sin = opposite / hypotenuse - SOH
Cos = adjacent / hypotenuse - CAH
Tan = opposite / adjacent - TOA
solving for w using cos, CAH
cos y = w / m
cos y = w / √125
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What is 1 4 of a circle in degrees?.
1 in 4 angle of slope in degree is 90°.
In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction.
An angle is a shape created by two rays that share a terminus and are referred to as the angle's sides and vertices, respectively. Angles created by two rays are in the plane where the rays are located.
The inverse tangent function is called arctangent, often known as arctan or tan-1. Tangent only has a limited domain for its inverse function.
So to find the 1 in 3 angle we have to put the value 1/3 in arctan function
which is tan inverse function.
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The formula for the area of the shaded region on the diagram is:
Area of the circle - Area of the square The area of the circle is 78.1c * m ^ 2 rounded to 1 decimal place.
The area of the square is 21.4c * m ^ 2 truncated to 1 decimal place. Write the error interval for the area, a, of the shaded region in the form m < a < n .
The error interval for the area of the shaded region is given as follows:
56.6 < a < 56.8.
How to obtain the error interval?The area of the circle is of 78.1 cm², rounded to one decimal place, hence the interval for the area of the circle is of:
78.05 <= area circle < 78.15.
The area of the square is of 21.4 cm², rounded to one decimal place, hence the interval for the area of the circle is of:
21.35 <= area square < 21.45.
The error formula is:
Area circle - Area square.
The minimum error is when the area of the circle is the greatest and the square is the least, hence:
m = 78.15 - 21.35
m = 56.8.
The maximum error is when the area of the circle is the least and the square is the greatest, hence:
n = 78.05 - 21.45
n = 56.6.
Meaning that the error interval is of:
56.6 < a < 56.8.
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What is the y coordinate of the solution of the following system 3x 2y 7y − 3x 11?.
So, the y-coordinate of the solution of the system of equations 3x + 2y = 7 and y - 3x = 11 is 6.
To find the y-coordinate of the solution of a system of equations, we can use one of the methods for solving systems of equations, such as substitution, elimination, or graphing. In this case, we will use substitution method.
The system of equations is:
3x + 2y = 7
y - 3x = 11
We can solve for y in the second equation and get:
y = 3x + 11
Now we can substitute this expression of y into the first equation:
3x + 2(3x + 11) = 7
3x + 6x + 22 = 7
9x + 22 = 7
9x = -15
x = -5/3
Now we can substitute this value of x into the second equation:
y = 3(-5/3) + 11
y = -5 + 11
y = 6
So, the y-coordinate of the solution of the system of equations 3x + 2y = 7 and y - 3x = 11 is 6.
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Suppose that the functions u and w are defined as follows.
u(x) = -x +3
w (x) = 5x+2
Find the following.
(w-u) (-5) = [
(uw) (-5) =
0⁰ 0/6
X
The values of composite functions are,
(w о u)(2) = √7 + 2
(u о w)(2) = 9 + 4√2
What is composite function?Function composition is an operation о used in mathematics that takes two functions, f and g, and creates a function, h = g о f, such that h(x) = g. The function g is applied in this operation to the outcome of applying the function f to x.
Given:
u(x) = x^2 + 3
w(x) = √x+2
We have to find (w о u)(2) and (u о w)(2).
First to find (w о u)(x)
(w о u) = w(u(x))
= w(x^2 + 3)
(w о u) = √(x^2 + 3) + 2
(w о u)(2) = √(2^2 + 3) + 2
(w о u)(2) = √7 + 2
Now to find (u о w).
(u о w)(x) = u(w(x))
= u(√x+2)
= (√x+2)^2 + 3
= x + 4√x + 4 + 3
(u о w)(x) = x + 4√x + 7
(u о w)(2) = 2 + 4√2 + 7
(u о w)(2) = 9 + 4√2
Hence,
The values of composite functions are,
(w о u)(2) = √7 + 2
(u о w)(2) = 9 + 4√2
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How to find the end behavior of a graph?
Graph behavior as x approaches is referred to be the end behavior of a polynomial function.
How do you identify the desired outcome? Graph behavior as x approaches is referred to be the end behavior of a polynomial function.The leading term of the function—that is, the term with the highest n-value for axn an x n, where n is a positive integer and an is any nonzero number—allows us to predict the final behavior.Look at the leading term of the polynomial function to understand its end behavior.Graph behavior as x approaches is referred to be the end behavior of a polynomial function.Given that the leading term has the largest power, its behavior will dominate the graph since it will increase much more quickly than the other terms as x gets extremely large or very tiny.To learn more about polynomial function refer
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Five le than a number i le than or equal to 6 time the number. What inequality can be written to repreent thi tatement?
The inequality statement will be x-5 ≤ 6.
Inequalities are mathematical expressions that contain variables and numerical terms that are separated by the inequality symbol.
An inequality can be derived from a statement of words, which must be correctly interpreted in order to yield the appropriate inequality.
When there are more than and fewer than values in the inequality, we know that the variable must be in the middle.
The inequality symbols are greater than, less than, greater than or equal, and less than, or equal.
There are two conditions given in the question as mentioned below:
1. Five less than a number
2. the number is less than or equal to 6
Let x be the number,
x-5 ≤ 6
So, the inequality statement will be x-5 ≤ 6
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A
The top of a signal tower is 135 meters above sea level. The angle of depression from the top of
the tower to a passing ship is 20°. How many meters from the foot of the tower is the ship? Round
to the nearest meter.
Answer:
371 meters
Step-by-step explanation:
This is a triangle trigonometry problem. The phase "angle of depression" means the angle looking down to the boat instead of looking straight out from the top of the tower. See image. You can then find the rest of the angle is 70°. Looking at the boat creates one line, the tower is another side, 135m, and the distance to the boat is the third side of a triangle. See image.
Tangent is a trig ratio. It compares the side opposite from the angle to the side next to (adjacent) the angle. We can then write an equation. Unless the teacher/program/text gives you tan 70°, you need a calculator to find it.
tan 70° = x/135
Multiply both sides by 135.
135 tan 70° = x
Put this in a calculator.
135 × tan70°
it comes out a long decimal. But the directions said to round to the nearest meter.
The boat is about 371 meters away from the foot of the tower.
I need to know the surface area for this shape please
Answer:
87cm²
Step-by-step explanation:
surface area =l×w all round since there is no square, we begin with the first part
6×3×2=36
3×2×2=12
6×2×2=24
4×1×2=
3×1×2=
1×1=1
Then add them all =87cm²
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
The three (3) statements which are true include the following:
A. The radius of the circle is 3 units.
B. The center of the circle lies on the x-axis.
D. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
What is the equation of a circle?In Mathematics, the standard form of the equation of a circle is represented by this mathematical expression;
(x - h)² + (y - k)² = r² ....equation 1.
Where:
h and k represents the coordinates at the center of a circle.r represents the radius of a circle.From the information provided above, we have the following equation of a circle:
x² + y² – 2x – 8 = 0 ......equation 2.
In order to determine the true statements, we would rewrite the equation in standard form and then factorize by using completing the square method:
x² – 2x + y² = 8 = 0
x² – 2x + (2/2)² + y² = 8 + (2/2)²
x² – 2x + 1 + y² = 8 + 1
(x – 1)² + (y - 0)² = 9 .......equation 3.
Comparing equation 1 and equation 3, we have the following:
Center (h, k) = (1, 0)
Radius (r) = 3
Additionally, this line and the center of the given circle lies on the x-axis (x-coordinate) because the y-value is equal to zero (0).
(x – 0)² + (y - 0)² = 3²
x² + y² = 9.
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Kevin had to measure the diameter of a hair strand and the diameter of a grain of sand for his science experiment. He found the diameter of the hair strand to be 0.00006 inches and the diameter of a gain of sand to be 1.3 x 10^-3 inches.
The diameter of the grain of sand is _____ x 10^-3 inches more than the diameter of the hair strand.
Y = 1/4(4)^x ; x = 3/2
Evaluating the exponential equation:
y = (1/3)*4^x
on x = 3/2 gives y = 8/3.
How to evauate the exponential equation?Here we have the following exponential equation:
y = (1/3)*4^x
And we want to evaluate it on x = 3/2, to do so, we just need to replace the variable on the equation by the given number.
We will get:
y = (1/3)*4^(3/2)
The power part can be rewrite as:
y = (1/3)*√4^3
y = (1/3)*2^3
y = (1/3)*8 = 8/3
That is the value of the equation when evaluated on x = 3/2.
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What is the best graph for two variables?.
The scatter plot is the type of graph that is most frequently used to show the relationship between two numerical variables.
The graphs that show the association between two variables in a data set are called scatter plots. It shows data points on a two-dimensional plane or a Cartesian system.
The independent variable or attribute is represented by the X-axis, and the dependent variable is plotted using the Y-axis. To describe these charts, diagrams or graphs are usually employed. An XY graph, scatter chart, or scattergram are other names for a scatter plot. The scatter diagram plots numerical data pairings with one variable on each axis to show the relationship between them.
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Dakota earned $10.50 in interest in Account A and $35.00 in interest in Account B after 21 months. If the simple interest rate is 3% for Account A and 5% for Account B, which account has the greater principal? Explain. Which account has the greater principal? Select the correct answer below and fill in the answer boxes to complete your choice.
Account B has more money than account A. Then account that has the greater principal will be account B.
What is simple interest?Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.
The formula for interest is written as,
I = (PRT)/100
Where P is the principal, R is the rate of interest, and T is the time.
Dakota procured $10.50 in revenue in Record An and $35.00 in revenue in Record B following 21 months. In the event that the straightforward financing cost is 3% for Record An and 5% for Record B.
Then the account has the greater principal will be given as,
10.50 = [P₁ x 3 x (21/12)] / 100
1050 = 5.25P₁
P₁ = $200
35 = [P₂ x 5 x (21/12)] / 100
3500 = 8.75P₂
P₂ = $400
Account B has more money than account A. Then account that has the greater principal will be account B.
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What assumption would you make to start the indirect proof of ⊿ ≅ ⊿?.
The assumption we would make to start the indirect proof of AB is congruent to BC is AB + BC.
Indirect Proof:
Step 1 Suppose a right triangle's hypotenuse is not the longest side. That is BC > AB and AC > AB.
Step 2 If BC > AB, then ∠C < ∠A. Since m C = 90, ∠A > 90. So, ∠C + ∠A > 180. By the same
reasoning, ∠C + ∠B > 180.
Step 3 Both connections counter the fact that the sum of the measures of the angles of a triangle equals 180.
Thus, the hypotenuse must be the longest side of a right triangle.
Hence, the correct option is C.
--The given question is incorrect; the correct question is
"What assumption would you make to start the indirect proof that AB is
congruent to BC?
A. A ≠ B
B. B ≠ C
C. AB + BC
D. BA < CB"--
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M,
Lauren has watermelons and oranges in a ratio of 88:14. How many watermelons
does she have if she has 7 oranges?
Answer:
Lauren has 44 watermelons
Step-by-step explanation:
Let us use W to denote the number of watermelons and O to denote the number of oranges
We have
W:O = 88:14
This can be represented as a fraction:
[tex]\dfrac{W}{O} = \dfrac{88}{14}[/tex]
Divide numerator and denominator of [tex]\dfrac{88}{14}[/tex] by 2
[tex]\dfrac{88 \div 2}{14 \div 2} = \dfrac{44}{7}\\\\\\\\\mathrm{So\; \dfrac{W}{O} = \dfrac{44}{7}}\\\\[/tex]
This means for every 7 oranges there are 44 times that number of watermelons
Since we are given that there are 7 oranges she should have 44 watermelons
Another way of looking at this is from the relation
[tex]\dfrac{W}{O} = \dfrac{44}{7}}\\\\[/tex]
Putting in O = 7 we get
[tex]\dfrac{W}{7} = \dfrac{44}{7}\\\\[/tex]
Since the denominators are the same the numerators must be the same i.e. W = 44
Lauren has 44 watermelons
the base of a triangular pyramid is a right-angled triangle with a hypotenuse of 6 cm and an acute angle of 30°. all side faces form 60° with the base. calculate the exact volume of the pyramid
Answer:
To calculate the volume of a triangular pyramid, we can use the formula:
V = (1/3) * B * h
where V is the volume, B is the area of the base, and h is the height of the pyramid.
Since the base of the pyramid is a right-angled triangle, we can use the Pythagorean theorem to find the length of the other two sides, which are the legs of the triangle. The hypotenuse is 6 cm and the angle opposite to the hypotenuse is 30°, so we can use the sine function to find the length of the other leg:
sin(30) = opposite / hypotenuse
opposite = (sin(30) * hypotenuse) = (1/2 * 6) = 3
Now we can use the area formula for a right-angled triangle:
B = (1/2) * base * height = (1/2) * 3 * 6 = 9
To find the height of the pyramid, we can use the fact that all side faces form an angle of 60° with the base. We can use the sine function to find the height of the pyramid:
sin(60) = opposite / hypotenuse
opposite = (sin(60) * hypotenuse) = (√3/2 * 6) = 3√3 cm
Now we can substitute the values of B and h into the volume formula:
V = (1/3) * B * h = (1/3) * 9 * 3√3 = 3√3 cm³
So the exact volume of the triangular pyramid is 3√3 cm³.
Step-by-step explanation: