A set-builder notation is a mathematical notation for describing a set by enumerating its elements or stating the properties that its members must satisfy. In your case, the set builder notation {x l x > } means that the set consists of all elements that are greater than.
Consider number line. Plot the point as unfilled circle that goes after > sigh and shade the ray that goes from this point to the right. Then another way to represent this solution is
( ,∞).
Answer: correct choice is C
Final answer:
The correct alternative representation of the set builder notation { x | x > A } in interval notation is ( A, ∞ ), which includes any number greater than A up to positive infinity, but does not include A itself.
Explanation:
The solution to an inequality given in set builder notation as { x | x > A } can be represented in interval notation in several ways, depending on the specifics of the inequality. If the set includes all numbers greater than A, but does not include the number A itself, the interval notation is ( A, ∞ ). This means that the solution set includes any number greater than A, extending to positive infinity, but it does not include A because of the use of the parenthesis.
Interval notation such as [ A, ∞ ) would mean that the set includes the number A and extends to positive infinity. However, this is not the correct representation if the initial set builder notation specifies that x is greater than A, not greater than or equal to A. Similarly, intervals ( -∞ , A ] and ( -∞ , A ) represent sets that include numbers less than or equal to A, and less than A, respectively, which again isn't the case here.
Therefore, the correct answer is 2nd option
solve the system
x+3y=22
2x-y=2
Answer: The required solution is (x, y) = (4, 6).
Step-by-step explanation: We are given to solve the following system of equations :
[tex]x+3y=22~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\2x-y=2~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)[/tex]
From equation (ii), we have
[tex]2x-y=2\\\\\Rightarrow y=2x-2~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iii)[/tex]
Substituting the value of y from equation (iii) in equation (i), we get
[tex]x+3(2x-2)=22\\\\\Rightarrow x+6x-6=22\\\\\Rightarrow 7x=22+6\\\\\Rightarrow 7x=28\\\\\Rightarrow x=\dfrac{28}{7}\\\\\Rightarrow x=4.[/tex]
From equation (i), we get
[tex]4+3y=22\\\\\Rightarrow 3y=22-4\\\\\Rightarrow 3y=18\\\\\Rightarrowy=\dfrac{18}{3}\\\\\Rightarrow y=6.[/tex]
Thus, the required solution is (x, y) = (4, 6).
an artist is cutting pieces of ribbon to use in a project. Each piece he cuts measures 7/8 inch. The aritst cuts off 5 pieces. How many total inches of ribbon has he cut off?
The artist has cut off a total of 4 and 3/8 inches of ribbon for his project by multiplying the length of one piece (7/8 inch) by the total number of pieces cut (5).
Explanation:The question involves a straightforward arithmetic operation of multiplication. Each piece of ribbon the artist cuts measures 7/8 inch, and he cuts off 5 pieces in total. To find the total length of ribbon cut off, we multiply the length of one piece (7/8 inch) by the number of pieces cut (5).
Calculation: \(\frac{7}{8} \text{ inch} \times 5 = \frac{35}{8} \text{ inches} = 4 \frac{3}{8} \text{ inches}\)
Therefore, the artist has cut off a total of 4 and 3/8 inches of ribbon for his project. This example demonstrates a practical application of multiplication in a real-world context, specifically within arts and crafts projects.
A solid right pyramid has a regular hexagonal base with an area of 7.4 units2. The pyramid has a height of 6 units.
What is the volume of the pyramid?
11.1 units3
14.8 units3
22.2 units3
44.4 units3
Answer:
Option B. 14.8 units³ is the answer.
Step-by-step explanation:
It is given in the question A solid right pyramid which has a regular hexagonal base with area = 7.4 unit²
Height of the pyramid = 6 units.
We have to calculate the volume of the pyramid.
Since volume of the pyramid = (1/3)×Area of the base × height
Volume = (1/3)×7.4×6 = 7.4 × 2 = 14.8 units³
Therefore option B. 14.8 units³ is the answer.
It should be noted that the volume of the pyramid will be 14.8 unit³.
How to calculate the volume of the pyramidFrom the information given, the solid right pyramid has a regular hexagonal base with an area of 7.4 units².
The height of the pyramid is also 6 units. Therefore, the volume of the pyramid will be:
= 1/3 × Area of the base × height
= 1/3 × 7.4 × 6
= 14.8 units³
In conclusion, the volume of the pyramid is 14.8 unit³.
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what are the domain range and asymptote of h(x)=(1.4)^x+5
domain: {x | x is a real number}; range: {y | y > 5}; asymptote: y = 5
Which trigonometric function would be used to find the length of this triangle's hypotenuse?
The cosine function is used to find the length of the hypotenuse of a triangle by utilizing the Pythagorean theorem.
The trigonometric function used to find the length of the hypotenuse of a triangle is the cosine function. In a right triangle, the cosine function is defined as the ratio between the length of the adjacent side to the length of the hypotenuse.
To find the length of the hypotenuse, you can use the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the lengths of the two shorter sides is equal to the square of the length of the hypotenuse.
For example, if the lengths of the shorter sides are 9 blocks and 5 blocks, then the length of the hypotenuse would be √(9² + 5²) = √(81 + 25) = √106 = 10.3 blocks.
Which of the following statements is true?
All trapezoids are parallelograms.
All parallelograms are trapezoids.
All rectangles are squares.
All rhombuses are rectangles.
Answer:
The answer is B. All parallelograms are trapezoids.
Step-by-step explanation:
The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. That makes the opposite of facing sides are parallel to each other. The the definition of trapezoid is a convex quadrilateral with at least one pair of parallel sides. Therefore, all parallelograms are trapezoids.
The true statement among the given options is, B. All parallelograms are trapezoids.
A trapezoid is a quadrilateral with at least one pair of parallel sides, but it doesn't require all sides to be parallel. Therefore, not all trapezoids are parallelograms. (Statement A is false)
A parallelogram is a quadrilateral with both pairs of opposite sides parallel. Every trapezoid has at least one pair of parallel sides, so it can be considered a special case of a parallelogram. Therefore, all trapezoids are parallelograms. (Statement B is true)
A rectangle is a quadrilateral with all four angles equal to 90 degrees. It has opposite sides that are parallel and equal in length. A square is a special type of rectangle with all sides of equal length. However, not all rectangles have all sides of equal length, so statement C is false.
A rhombus is a quadrilateral with all four sides of equal length. It has opposite sides that are parallel, making it a parallelogram. Since a rectangle is a parallelogram with right angles, and a rhombus is a parallelogram with equal sides. Therefore, statement D is also false.
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Hiram sells kites to various corporations. To maintain his business, he must sell an average of 50 kites per month. After 5 months, Hiram has sold 30, 42, 77, 90, and 52 kites in each of the 5 months. How many kites would Hiram have to sell in the 6th month for him to meet his average of 50 kites?
$8 euros were worth $9 and $24 euros were worth $27 write an equation of the form y=kx to show the relationship between the number of euros and the value in dollars.
Solve for b in the formula 3 a + 2 b = c .
A. b=c-3a
B. b=c-2/3a
C. b=c-3a/2
D. b=2c/3a
The value of b from the given equation is (c-3a)/2. Therefore, option C is the correct answer.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 3a+2b=c.
Now, 2b=c-3a
b= (c-3a)/2
The value of b from the given equation is (c-3a)/2. Therefore, option C is the correct answer.
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Name two properties used to evaluate 7x1-4x1/4
Solve for x.
89(54x−36)+2=−34(−40+16x)+90x
How many possible outcomes, including both main effects and interaction effects, are possible for a factorial design with three independent variables?
Let f(x)equals=33xminus−1, h(x)equals=startfraction 7 over x plus 5 endfraction 7 x+5 . find (hcircle◦f)(66).
7(2+5v)=3v+14 can anyone help???
The solution to the equation is v = 0.
We have,
To solve the equation 7(2 + 5v) = 3v + 14, we can simplify and isolate the variable v.
Expanding the left side of the equation:
7(2 + 5v) = 14 + 35v
Now we have:
14 + 35v = 3v + 14
Next, we can combine like terms:
35v - 3v = 14 - 14
32v = 0
To solve for v, we divide both sides of the equation by 32:
v = 0/32
v = 0
Therefore,
The solution to the equation is v = 0.
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Write all the factors of 8
In how many ways can i arrange the 6 letters a, b, c, d, e, f?
Suppose that a circular coin has an area a, a radius of r, and a diameter of
d. write a as a function of
d.
Area of the given Circle as the function of its diameter πd²/4
What is circle?A Circle is the 2D shape which is measured in the terms of its radius.
Given that Area, radius and diameter of the given Circle is a , r and d respectively.
Area of Circle (A) = π X radius²
radius = diameter/2
Therefore replacing radius by diameter we get,
A = π(d/2)²
A = πd²/4
Hence, Area as a function of d is given by A = πd²/4
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Nine friends will equally share 12 glasses of punch how many glasses of punch will each friend get A.3/4 B.1/3 C.4/3 D.3
Simplify the expression (x^19 y^21)^4/(x^2 y^6)^2
The simplified expression is ________.
How many length 6 passwords with 1 number 1 upper and 1 lower?
PLEASE HELP WITH THESE TWO
4. Tyler is writing a coordinate proof to show that a diagonal of a rectangle divides the rectangle into two triangles that have equal areas. He starts by assigning coordinates to a rectangle. Then he uses these coordinates to write an expression for the area of each triangle formed by the diagonal.
What is the area of one of the triangles formed by the diagonal of the rectangle?
Enter an expression in the box for the area of the triangle.
5. Amira is writing a coordinate proof to show that the area of a triangle created by joining the midpoints of an isosceles triangles is one-fourth the area of the isosceles triangle. She starts by assigning coordinates as given.
Enter your answers, in simplest form, in the boxes to complete the coordinate proof.
Point Q is the midpoint of DE , so the coordinates of point Q are (a, b).
Point R is the midpoint of FE , so the coordinates of point R are ([ ], b).
In ΔDEF , the length of the base, DF , is [ ], and the height is 2b, so its area is [ ].
In ΔQRP , the length of the base, QR , is [ ], and the height is b, so its area is ab.
Comparing the expressions for the areas proves that the area of the triangle created by joining the midpoints of an isosceles triangle is one-fourth the area of the triangle.
Thanks in advance. Please explain.
Answer:
#4) 1/2(ab); #5) 3a, 4a, 4ab, 2a
Step-by-step explanation:
#4) Take the top triangle. The height will be the difference in the y-coordinates of J and M:
b-0 = b
The base of the triangle would be the difference in the x-coordinates of J and K:
a-0 = a
The area is given by the formula A=1/2bh, where b is the base and h is the height; substituting our height and base, we have
A=1/2(b)(a) = 1/2(ab)
#5) To find the midpoint of a section, we add together the x-coordinates and divide by to, and add together the y-coordinates and divide by 2.
The endpoints of FE are (4a, 0) and (2a, 2b). This makes R:
[tex](\frac{2a+4a}{2},\frac{2b+0}{2})\\\\=(\frac{6a}{2},\frac{2b}{2})\\\\=(3a, b)[/tex]
The length of DF can be found by subtracting the x-coordinates:
4a-0 = 4a
The area is then found by multiplying 1/2 by the base and the height:
A=1/2(4a)(2b) = 1/2(8ab) = 4ab
The length of QR can be found by subtracting the x-coordinates:
3a-a = 2a
What is the value of x?
a. 68°
b. 62°
c. 112°
d. 124°
Which is an equivalent equation solved for y ?
Answer:
4th Option is correct.
Step-by-step explanation:
Given:
x and y are the half length of the largest and smallest diameter of the ellipse.
Area of the Ellipse , a = πxy
To find: Equivalent Equation for y.
Consider,
a = πxy
πxy = a
(πx)y = a
transpose πx to RHS,
[tex]y=\frac{a}{\pi x}[/tex]
y = a ÷ ( πx )
Therefore, 4th Option is correct.
Which table shows a linear function?
Thank you!
A street that is 270m long is covered in snow. city workers are using a snowplow to clear the street. a tire on the snowplow has to turn 45 times in traveling the length of the street. what is the diameter of the tire?
Help with this question !
Which of the following is an example of gameplay in a video game
A: the art of a game
B: the player interacting with the game world and game mechanics
C: the personalities of all the characters
D:all of the above
Answer:
B: the player interacting with the game world and game mechanics
Step-by-step explanation:
There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater. The Pacific Ocean contains approximately 6.6×1020 liters of seawater. About how many kilograms of dissolved salt are in the Pacific Ocean? Enter your answer, in scientific notation, in the boxes. ×× 10 kg
Quick Answer:
2.31 x 10^19 kg
What is 55 x 10 to the power of 4 in scientific notation
Change each fraction to a decimal. If the division doesn’t end, round your answer to the nearest hundredth. a. 3⁄4 b. 7⁄16 d. 3⁄5 e. 7⁄40 f. 51⁄20
Answer:
the other person forgot to answer c
Step-by-step explanation:
a 0.75
b 0.44
c 0.6
d 0.6
e 0.18