The system below is consistent and has more unknowns than equations so has an infinite number of solutions. Solve this system by specifying appropriate free variables, solving for the other variables in terms of the free ones then expressing the general solution as a sum of scalar multiples of fixed column vectors. X1 + x3 + 2x4 + X5 + 3x6 = 1 2x1 + x2 + 2x3 + 4x4 +3.25 + 10x6 = 5 3x1 + x2 + 3x3 + 6x4 + 6x5 + 15x6 = 8
The solution of the system is then given by:
x = t[1 -1 1 0.5 0.5 0.33] + s[0 -2 1 1 -2 1]
This is the general solution of the system in the form of a sum of scalar multiples of fixed column vectors.
The system of linear equations can be written in matrix form as:
[1 0 1 2 1 3 | 1]
[2 1 2 4 0 10| 5]
[3 1 3 6 6 15| 8]
where the augmented matrix is [A | B].
To solve the system using the method of specifying appropriate free variables, we first convert the coefficient matrix into reduced row echelon form using Gaussian elimination.
In reduced row echelon form, the first non-zero element of each row (known as the leading entry) is 1, and the leading entries of lower rows are to the right of the leading entries of higher rows.
Applying Gaussian elimination to the coefficient matrix, we get:
[1 0 1 2 1 3 | 1]
[0 1 0 2 -2 7| 0]
[0 0 0 0 0 0| 0]
We can see that there are two non-zero rows, indicating that the system has two independent equations.
We can choose two of the variables to be free variables, and express the other variables in terms of the free ones.
Let's choose x1 and x3 as the free variables.
We can find x2 as follows:
x2 = -x1 - 2x3 + 7
And we can find x4, x5 and x6 as follows:
x4 = (1 - x1 - x3)/2
x5 = 1 - x1 - 2x3 + 2x4
x6 = (1 - x1 - x3 - 2x4)/3
So the general solution of the system can be expressed as a sum of scalar multiples of fixed column vectors:
x1 = t
x2 = -t - 2s + 7
x3 = s
x4 = (1 - t - s)/2
x5 = 1 - t - 2s + (1 - t - s)/2
x6 = (1 - t - s)/3
where t and s are scalars.
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Which expression is equivalent to 21 - (-5)?
O A. -21 + 5
O B. 21 + 5
O C. -21 - 5
O D. 21 - 5
Melanie runs 5miles a day. How many miles will her brother run in one week?
Pls help me with this question
The equation that represents the condition is m° + 66° + m° = 120°. Then the value of m is 27°.
When two lines intersect, then their opposite angles are equal. Then the equation is given as,
m° + 66° + m° = 120°
Simplify the equation for m, then the value of 'm' is calculated as,
m° + 66° + m° = 120°
2m° = 120° - 66°
2m° = 54°
m° = 27°
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In this triangle what is the value of x
Answer:
Step-by-step explanation:
error
Answer:
x ≈ 75.2
Step-by-step explanation:
using the tangent ratio in the right triangle
tan62° = \(\frac{opposite}{adjacent}\) = \(\frac{x}{40}\) ( multiply both sides by 40 )
40 × tan62° = x , then
x ≈ 75.2 ( to the nearest tenth )
The functions f(x) and g(x) are shown on the graph.
The graph shows a v-shaped graph, labeled f of x, with a vertex at the origin, a point at negative 1 comma 1, and a point at 1 comma 1. The graph shows another v-shaped graph, labeled g of x, which has a narrower opening than f of x, with a vertex at the origin, a point at negative 1 comma 4, and a point at 1 comma 4.
What transformation of f(x) will produce g(x)?
g of x equals f of one fourth times x
g of x equals negative one fourth times f of x
g(x) = f(4x)
g(x) = −4f(x)
The transformation that produce function g(x) from f(x) is that g(x) = 4 f(x).
Given graphs of f(x) and g(x).3
Both are v shaped graphs, which is probably modulus functions.
For the graph of f(x),
Vertex = (0, 0)
Other points = (-1, 1) and (1, 1)
For the graph of g(x),
Vertex = (0, 0)
Other points = (-1, 4) and (1, 4)
Here the coordinates can be related as,
(x, f(x)) transformed to (x, 4f(x))
So g(x) = 4 f(x).
Hence the transformation is g(x) = 4 f(x).
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30m3n4-5m4complete factored form of the polynomial
Factor of polynomial m are 0, 6n⁴.
What is polynomial in maths?
A polynomial is an expression in mathematics made up of variables (also known as indeterminates) and coefficients, and it only uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of the variables. The polynomial x2 4x + 7 is an illustration of one with a single indeterminate x.
= 30m³n⁴ - 5m⁴
= 5m³(6n⁴ - m )
let 5m³(6n⁴ - m ) = 0
5m³ = 0
m = 0
6n⁴ - m = 0
m = 6n⁴
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Translation to the question
The curve y=2x-x^2 contains along with the x-axel an area. See figure. Calculate the triangles maximum area. Answer exactly.
\(1/2 * 2 * 1 = 1\) square unit.
Step-by-step explanation:
To find the maximum area of the triangle, we need to locate the vertex of the parabola. This occurs when x=1. The y-coordinate at x=1 is 1. We can then use this as the height of the triangle. The base of the triangle is the distance between x=0 and x=2, which is 2. Therefore, the maximum area of the triangle is 1/2 * 2 * 1 = 1 square unit.
Norris Company uses the perpetual inventory system and had the following purchases and sales during March.
Using the inventory and sales data above, calculate the value assigned to cost of goods sold in March and to the ending inventory at March 31 using FIFO and LIFO
FIFO
Cost of goods sold: $____
Ending inventory: $____
LIFO
Cost of goods sold: $____
Ending inventory: $____
FIFO - March cost of goods sold = $13,050. March 31 inventory = $7,350. LIFO - March cost of goods sold = $14,600. March 31 inventory = $5,800.
To calculate March cost of goods sold we need to add the given data for FIFO =
March cost of goods sold
= (2,800 + 3,700 + 6,550)
= 13,050
To calculate March cost of goods sold we need to add the given data for LIFO =
March cost of goods sold
= (3,400 + 4,400 + 6,800)
= 5,800
Sales data refers to the information collected and recorded about the transactions that occur when a business sells products or services to customers. This data typically includes details such as the date and time of the sale, the products or services sold, the quantity sold, the price paid, and the customer's information. Sales data is crucial for businesses as it helps them understand their sales performance, identify trends and patterns and make informed decisions about their pricing, marketing and inventory management strategies.
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Differentiate y=x4 -x
Answer:
Step-by-step explanation:
To differentiate the function y = x^4 - x, we will use the power rule of differentiation. The power rule states that if f(x) = x^n, then the derivative of f(x) is f'(x) = nx^(n-1).
So, for y = x^4 - x, we can find the derivative as follows:
y' = 4x^3 - 1
So, the derivative of the function y = x^4 - x is y' = 4x^3 - 1.
Find the area of a square with a side length of 1/4 inch
Answer: you will multiply the length of its base by its height.
Step-by-step explanation:
The area of square with side length 0f 1/4 inch is equals to 0.0625 square inch.
What is square ?
"A square is a regular quadrilateral, which has four equal sides and four equal angles. It can also be defined as a rectangle with two equal adjacent sides."
Formula used
Area of square = side × side
According to the question,
We have
Side length of the square = 1/4 inch
= 0.25 inch
Area of square = 0.25 × 0.25
= 0.0625 square inch
Hence, area of square is 0.0625 square inch.
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Angle C is inscribed in circle O. AB is diameter of circle O. What is the measurement of angle A
Answer:
19 degrees
Step-by-step explanation:
general: what is represented on the x and y axis in this graph? what does the black observed line represent in each graph?
The given question is incomplete as the graph is missing.
But, considering a line graph, the following parameters can be represented on the x-axis and y-axis:
X-Axis Y-Axis
Year Population
Time Number of employees hired
Identical items purchased Total cost in dollars
What does the blank observed line represent in each graph?
The blank observed line represents the time. A line graph is basically used to connect the quantitative values over the different time intervals. The change in values over time is easier to estimate, by the help of the line graph. For example: in a graph showing the year on the x-axis and the population on the y-axis, the blank line represents the change in population over the years, the increase or decrease or the rate of change.
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The dimensions of a cylinder are shown in the diagram
Round to the nearest whole number , what is the total surface area of the cylinder in cubic centimeters
Answer:
S = 2π(3^2) + 2π(3)(8.2) = 67.2π = 211 cm^3
Matthew is saving money for a pet turtle the data in the table represents the total amount of money in dollars that he saved by the end of each week.
Which expression is always equivalent to sin x when 0° < x < 90°?
(1) cos (90°- x)
(3) cos (2x)
(2) cos (45° - x)
(4) cos x
The expression that is always equivalent to sin x when 0° < x < 90° is (1) cos (90° - x). Option 1
To understand why, let's analyze the trigonometric functions involved. In a right triangle, the sine of an angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. Since we are considering angles between 0° and 90°, we can guarantee that the side opposite the angle will always be the shortest side of the triangle, and the hypotenuse will be the longest side.
Now let's examine the expression cos (90° - x). The cosine of an angle is defined as the ratio of the length of the side adjacent to the angle to the length of the hypotenuse. In a right triangle, when we subtract an angle x from 90°, we are left with the complementary angle to x. This means that the remaining angle in the triangle is 90° - x.
Since the side adjacent to the angle 90° - x is the same as the side opposite the angle x, and the hypotenuse is the same, the ratio of the adjacent side to the hypotenuse remains the same. Therefore, cos (90° - x) is equivalent to sin x for angles between 0° and 90°.
On the other hand, options (2) cos (45° - x) and (3) cos (2x) do not always yield the same value as sin x for all angles between 0° and 90°. The expression cos x (option 4) is equivalent to sin (90° - x), not sin x.
Option 1 is correct.
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Sam invested $2700 in an account with annually compounded interest. After 7 years, he had $3432 in the account. What was the interest rate of the account? Round your answer to one decimal place.
Answer: 3.5
Step-by-step explanation:
what is the volume of a 1 cm by 2 cm by 3 cm box? I got 216 cm.
Answer:
V = 6 cm^3
Step-by-step explanation:
To find the volume you multiply the dimensions of the three sides of the box, length times width times height
The length is 1 cm the width is 2 cm and the height is 3 cm
The units for volume will be cm^3 since we are multiplying cm* cm*cm
V = l*w*h
V = 1*2*3
V = 6 cm^3
Answer:
6 cm³
Step-by-step explanation:
The volume of a box or rectangular prism is l×w×h.
length × width × height
The dimensions of the box are 1cm × 2cm × 3cm
1 × 2 × 3
Multiply the numbers.
= 6
The volume of the box is 6 cm³.
What is the area of the white shape?
Answer:
your awnser is 60m hope it helps
create a model or equation that will represent to the amount of relief each family will receive bearing in mind that the number of families will vary.
Missing Information
Suppose the officials conducted a survey for 4 days to determine the actual number of families residing in the barangay and the secretary constructed a tableto keep track of the data.
Day 0:
Number of families: 850
Amount of relief each family will receive: 520
Answer:
f(x) = 442000/x
Step-by-step explanation:
Given
The data in the above table
Required
Determine a model or equation
First, we need to determine the amount of relief for all families.
Using data in day 0.
Total Amount = 850 * 520
Total Amount = 442000
Next, we determine the function of equation.
Let the number of families he represented by x
The function or equation is gotten by dividing the total amount by the number of families.
Hence:
f(x) = Total Amount ÷ x
Substitute values for total amount and x
f(x) = 442000/x
Hence, the model that satisfies the given information is:
f(x) = 442000/x
For what values of a and b is x^64 + ax^b +25 a perfect square for all integer values of x?
For the expression \(x^64 + ax^b + 25\) to be a perfect square for all integer values of x, b must be 64, and a must be a perfect square, written as a = \(y^2.\)
To determine the values of a and b such that the expression\(x^64 + ax^b\) + 25 is a perfect square for all integer values of x, we need to analyze the properties of perfect squares.
A perfect square is an expression that can be written as the square of another expression. In this case, we want the given expression to be in the form of\((x^n)^2,\) where n is an even integer.
Let's examine the given expression: \(x^64 + ax^b\) + 25
For it to be a perfect square, the quadratic term \(ax^b\)must have the same exponent as the leading term\(x^6^4.\) This means b must be equal to 64.
So we have:\(x^64 + ax^64 + 25\)
Now, we can rewrite this as:\((x^32)^2 + 2(x^32) (\sqrt{a}) + (\sqrt{25})^2\)
By comparing this with the standard form of a perfect square, (\(x^n +\sqrt{k} )^2\), we can deduce that √a must be equal to x^32 and \(\sqrt{25}\) must be equal to \(\sqrt{k.}\)
Therefore, we have: \(\sqrt{a} = x^3^2\)and\(\sqrt{25} = \sqrt{k}\)
From the second equation, we know that k = 25.
Now, substituting the value of k back into the first equation, we have: \(\sqrt{a} = x^3^2\)
To satisfy this equation for all integer values of x, a must be a perfect square. Therefore, we can express a as a =\(y^2\), where y is an integer.
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50 Points! Multiple choice algebra question. Photo attached. Thank you!
The exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8) is, 3 / 5
We have to given that;
the terminal side of theta in standard position contains the point (6,-8)
Hence, For given condition we get;
The exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8) is,
Here, x = 6, y = - 8
Hence, We get;
r = √x² + y²
r = √6² + 8²
r = √36 + 64
r = √100
r = 10
So, The exact value of cos theta if the terminal side of theta in standard position contains the point (6,-8) is,
cos θ = x / r
cos θ = 6 / 10
cos θ = 3 / 5
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Please help this is due today!
Do not answer this with one answer ,blank, or a ridiculous answer.... this is serious please.
Answer:
perdita is correct
Step-by-step explanation:
perdita is correct because A isoceles triangle has two of the same. The triangle will just be very very thin
Select all that apply.
Which of the following are linear factors of p(x) = x 3 - 2x 2 - 5x + 6 ?
x + 1
x + 2
x - 1
x - 3
What are the coordinates of the point on the directed line segment from ( − 7 , 9 ) (−7,9) to ( 3 , − 1 ) (3,−1) that partitions the segment into a ratio of 2 to 3?
The coordinates of the point on the directed line segment from (-7, 9) to (3, -1) that partitions the segment into a ratio of 2 to 3 are (-3, 5).
To find the coordinates of the point that divides the directed line segment from (-7, 9) to (3, -1) into a ratio of 2 to 3, we can use the section formula.
Let's label the coordinates of the desired point as (x, y). According to the section formula, the x-coordinate of the point is given by:
x = (2 * 3 + 3 * (-7)) / (2 + 3) = (6 - 21) / 5 = -15 / 5 = -3
Similarly, the y-coordinate of the point is given by:
y = (2 * (-1) + 3 * 9) / (2 + 3) = (-2 + 27) / 5 = 25 / 5 = 5
Therefore, the coordinates of the point that divides the line segment in a ratio of 2 to 3 are (-3, 5).
To understand this conceptually, consider the line segment as a distance from the starting point (-7, 9) to the ending point (3, -1). The ratio of 2 to 3 means that the desired point is two-thirds of the way from the starting point and one-third of the way from the ending point. By calculating the x and y coordinates using the section formula, we find that the desired point is located at (-3, 5).
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Find the output, y, when the input, x, is -9.
y =
Answer:
when x=-9, y=1
Step-by-step explanation:
the graph shows when the x is at -9, the y is at 1
Linear Functions, Determining Slope
Find the slope of the line that passes through the given points. Then determine if the line is increasing,
decreasing, horizontal or vertical.
Note: If the slope does not exist, enter DNE
Ordered Pairs
Slope
Behavior
m =
(15,3) and (17,7)
Select an answer
m =
(6,0) and (8, – 8)
Select an answer
m =
(8, -7) and (12, - 7)
Select an answer
m =
(-2,- 11) and (10,49)
Select an answer
m =
(4, - 5) and (4,7)
Select an answer
i hope this helps! let me know if i got something wrong.
HELP SOMEONE EXPLAIN THIS PLEASE
Answer:
Entrance fee for children: $1.92
Entrance fee for adults: $3.92
Step-by-step explanation:
Total expenses for this year: $214.00
The child fee will be: $x
and the adult fee will be $(x+2)
Last year the number of children was 44
and the number of adults was 33
this year also has the same number of children and adults.
which means the entrance fee total for children will be $44x and for adults will be $33(x+2).
44x + 33(x+2) = 214
--> 44x + 33x + 66 = 214
--> 77x = 214 - 66 = 148
--> x = 148/77 = 1.92
So children's price is $1.92 and adults price is $1.92 + 2
hence:
Entrance fee for children: $1.92
Entrance fee for adults: $3.92
find the center and radius of this circle (x+13)^2+(y+2)^2=81
Answer:
center (-13,2) radius=9
Step-by-step explanation:
(x+13)^2+(y+2)^2=81
x=-13
y=-2
r=sq rt of 81
The center and radius of this circle \((x+13)^{2} +(y+2)^{2} = 81\) is (h, k) = (-13, -2) and r = 9.
What is a circle and equation of the circle?A circle is the set of points in a plane that lie a fixed distance, called the radius, from any point, called the center.
The equation of a circle in standard form,
\((x-h)^{2} +(y-k)^{2} = r^{2}\)
Given equation of circle
\((x+13)^{2} +(y+2)^{2} = 81\)..................(1)
By comparing the standard form of circle with equation 1, we get
(h, k) = (-13, -2) and
\(r^{2} = 81\)
⇒ \(r = \sqrt{81}\)
⇒ r = 9
Hence, the center and radius of this circle \((x+13)^{2} +(y+2)^{2} = 81\) is (h, k) = (-13, -2) and r = 9.
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anwser it pls aaaaaaaassaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Answer:
Step-by-step explanation:
Volume = Bh
Turn the shape so the trapezoid is on the bottom/base
h=18 for overall shape
B = area of base, trapezoid
B = 1/2 (b₁ + b₂) h
b₁ = 11
b₂ = 25
h = 24 for trapezoid
B = 1/2 (11 + 25)(24)
B = 432
V = Bh
V = (432)(18)
V= 7776 in³