To find the two numbers with the sum of 226 and a difference of 200, set up two equations, add them to find one number, and then substitute it into one of the equations to find the other. The two numbers are 213 and 13.
The sum of two numbers is 226, and their difference is 200. To find the two numbers, we can set up two equations based on the given information:
Equation 1: x + y = 226Equation 2: x - y = 200Add both equations to eliminate y:
(x + y) + (x - y) = 226 + 2002x = 426x = 213Substitute x in one of the equations to find y:
x - y = 200213 - y = 200y = 213 - 200y = 13The two numbers are 213 and 13.
Square GHIJ shares a common center with regular hexagon ABCDEF on a coordinate plane. AB¯¯¯¯¯ is parallel to GH¯¯¯¯¯. If the combined figure rotates clockwise about its center, at which angle of rotation will the image coincide with the preimage?
60°
180°
90°
240°
a square needs to rotate 90 to coincide with itself
but the hexagon would need to rotate 180
the answer is 180 degrees
Answer:
Option B 180° is the right answer.
Step-by-step explanation:
Given is : GHIJ is a square and ABCDEF is a regular hexagon having common centre O.
We know that a square is symmetric at a rotational angle of 90°.
A regular hexagon is symmetric at a rotational angle of 60°.
We will find the LCM of 90 and 60, to know how much to rotate, to get a preimage.
Moreover, a hexagon needs to rotate 180 degrees to coincide with itself.
LCM(60°,90°)=180°.
So, the correct option is B. 180°.
The graph of a piecewise-defined function is shown below.
On the interval (x≤0, x≤1, x<1, x<0) the function is given by the rule (x= - 1, y= - 1, y=1, x=1), and on the interval (x≥0, x>1, x≥1, x>0) the function is given by the rule (y= - 1, x= - 1, y= 1, x= 1).
Answer:
one of these is wrong cause i got a three out of four but thats better than nothing i guess.
Step-by-step explanation:
x≤0, y=1, x≥1, this one is the one i think is wrong but y=-1
As a student you are able to earn extra money by assisting your neighbors with odd jobs if you charged $10.25 an hour for your assistance about how many hours would you need to work earn $8,425
Explain two ways to find the volume of a plastic cube.
V=a^3 and volume=Length × Width × Height are the two ways to calculate the volume of cube.
What is three dimensional geometry?Three-dimensional space is a geometric setting in which three values are required to determine the position of an element.
A cube is a three-dimensional figure with 6 faces, 8 vertices and 12 edges.
In a cube all the sides are equal like a square.
So the volume of cube can be measured by
V=a^3
where a is the measure of a side.
And the volume of cube can also be found by
volume=Length × Width × Height
Hence V=a^3 and volume=Length × Width × Height are the two ways to calculate the volume of cube.
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Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula? Quadratic formula: x =
Answer:
[tex]x_{1,2}=\frac{-(-2)\pm\sqrt{(-2)^2-4\cdot (-3)\cdot 6} }{2(-3)}[/tex] shows correct substitution of the values a, b, and c from the given quadratic equation [tex]-3x^2-2x+6=0[/tex] into quadratic formula.
Step-by-step explanation:
Given: The quadratic equation [tex]-3x^2-2x+6=0[/tex]
We have to show the correct substitution of the values a, b, and c from the given quadratic equation [tex]-3x^2-2x+6=0[/tex] into quadratic formula.
The standard form of quadratic equation is [tex]ax^2+bx+c=0[/tex] then the solution of quadratic equation using quadratic formula is given as [tex]x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]
Consider the given quadratic equation [tex]-3x^2-2x+6=0[/tex]
Comparing with general quadratic equation, we have
a = -3 , b = -2 , c = 6
Substitute in quadratic formula, we get,
[tex]x_{1,2}=\frac{-(-2)\pm\sqrt{(-2)^2-4\cdot (-3)\cdot 6} }{2(-3)}[/tex]
Simplify, we have,
[tex]x_{1,2}=\frac{2\pm\sqrt{76} }{-6}[/tex]
Thus, [tex]x_{1}=\frac{2+\sqrt{76} }{-6}[/tex] and x_{2}=\frac{2-\sqrt{76} }{-6}
Simplify, we get,
[tex]x_1=-\frac{1+\sqrt{19}}{3},\:x_2=\frac{\sqrt{19}-1}{3}[/tex]
Thus, [tex]x_{1,2}=\frac{-(-2)\pm\sqrt{(-2)^2-4\cdot (-3)\cdot 6} }{2(-3)}[/tex] shows correct substitution of the values a, b, and c from the given quadratic equation [tex]-3x^2-2x+6=0[/tex] into quadratic formula.
You can use the standard form of quadratic equation to find the correct substitution of the values a, b and c.
The correct substitution of the value a,b and c from the given quadratic equations into the solution form is [tex]x = \dfrac{-(-2) \pm \sqrt{(-2)^2 - 4 \times -3 \times 6}}{2 \times (-3)}[/tex]
What is the standard form of quadratic equations?The standard form of quadratic equations is [tex]ax^2 + bx + c = 0[/tex]
What are the solutions of standard quadratic equation?[tex]x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
From given equation [tex]0 = -3x^2 -2x + 6[/tex], we deduce that a = -3, b = -2 and c = 6.
Thus, substituting these values in the solutions' equation:
[tex]x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}\\ \\ x = \dfrac{2 \pm \sqrt{4 + 72}}{-6} = \dfrac{2\pm 2\sqrt{19}}{-6} = \dfrac{-1 \mp 2\sqrt{19}}{3}[/tex]
Thus, the correct substitution of the value a,b and c from the given quadratic equations into the solution form is [tex]x = \dfrac{-(-2) \pm \sqrt{(-2)^2 - 4 \times -3 \times 6}}{2 \times (-3)}[/tex]
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Monica went to the fair and paid for her lunch as well as tickets to ride several rides. The expression 1.5x + 9 represents her total costs.
What do the different parts of the expression model?
Drag the parts of the expression into the boxes to match each description.
Cost of lunch Number of ride tickets Total cost of ride tickets
Answer choices: 9, 1.5, x, 1.5x
The hexagon GIKMPR and FJN are regular. The dashed line segments form 30 degree angles.
What is? (attached)
The dashed line segments form 30-degree angles in the given diagram of a regular hexagon and triangle.
In the given diagram, hexagon GIKMPR and triangle FJN are regular. The dashed line segments form 30-degree angles.
Since hexagon GIKMPR is regular, all its interior angles are equal. Each angle of a regular hexagon is 120 degrees, so angle GIK is 120 degrees.
The angle at GIK can be split into two equal angles by the dashed line segment, so each of these angles measures 60 degrees.
Similarly, since triangle FJN is regular, each of its angles measures 60 degrees.
Therefore, the dashed line segments form two 30-degree angles each side of the regular hexagon and triangle.
The correct answer is option d. The image of [tex]\overline{OQ}[/tex] after a rotation of 300 degrees about point O is [tex]\overline{OF}[/tex].
To find the image of line segment [tex]\( \overline{OQ} \)[/tex] after a rotation of [tex]\( 300^\circ \)[/tex] about point O, we need to understand that a rotation of [tex]\( 300^\circ \)[/tex] is equivalent to rotating [tex]\( 60^\circ \)[/tex] clockwise. This is because rotating [tex]\( 360^\circ \)[/tex] would bring us back to the original position, so a rotation of [tex]\( 300^\circ \)[/tex] is the same as rotating [tex]\( 360^\circ - 60^\circ = 300^\circ \)[/tex].
Given that line segment [tex]\( \overline{OQ} \)[/tex] forms a [tex]\( 30^\circ \)[/tex] angle with the dashed lines, after a rotation of [tex]\( 300^\circ \)[/tex], it will form a [tex]\( 30^\circ \)[/tex] angle with the new position of the dashed lines.
Therefore, the image of line segment [tex]\( \overline{OQ} \)[/tex] after the rotation is [tex]\( \overline{OF} \)[/tex].
The complete question
The hexagon GIKMPR and FJN are regular. The dashed line segments form 30 degree angles.
Find the image of [tex]\overline{OQ}[/tex] after a rotation of 300 degree about point O.
a. [tex]\overline{OJ}[/tex]
b. [tex]\overline{OH}[/tex]
c. [tex]\overline{OQ}[/tex]
d. [tex]\overline{OF}[/tex]
Perform the indicated operation. square root of 8 + square root of 50
A pattern for 1 uniform uses 12 yards of material. Boleslaw wants to know how many yards are needed for 8 uniforms. Chantal wants to know how many yards she will need to make 15 uniforms.
The number of yards that she will need to make 8 uniforms and 15 uniforms will be 96 yards and 180 yards, respectively.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
A pattern for 1 uniform uses 12 yards of material. Boleslaw wants to know how many yards are needed for 8 uniforms will be given as,
⇒ 8 x 12
⇒ 96 yards
Chantal wants to know how many yards she will need to make 15 uniforms will be given as,
⇒ 15 x 12
⇒ 180 yards
The number of yards that she will need to make 8 uniforms and 15 uniforms will be 96 yards and 180 yards, respectively.
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round 4,719,429 to the nearest 10,000
What is the maximum value for the function on the interval [-2,3]?
a. -1
b. 2
c. 3
d. 4
On an average day, 38 customers buy a bag of grapes at Jerry's Market. There are an average of 47 grapes in each bag. Round to the nearest ten and then multiply to estimate the number of grapes Jerry's customers buy every day.
Answer:
40 x 50 = 2,000
Step-by-step explanation:
When we round a number, first identify the digit to round. Then proceed with the following two rules:
(a) If the number to the right of the digit to round is 0, 1, 2, 3, or 4 (that is, less than 5), then keep the digit to round and change the rest of the digits to the right of the digit to round to zero.
(b) If the number to the right of the digit to be rounded is 5, 6, 7, 8, or 9 (that is, greater than or equal to 5), then add one to the digit to round and change the rest of the digits to the right of the digit to round to zero.
In our case, we apply the two rules, rounding to the nearest ten, as follows:
For 38 = 40
Apply rule (b) since 8 is greater than or equal to 5, then add 1 to 3 to get 4, then change 8 to zero. The result is 40.
For 47 = 50
Apply rule (b) since 7 is greater than or equal to 5, then add 1 to 4 to get 5, then change 7 to zero. The result is 50.
Now, multiply to estimate the amount of grapes that Jerry customers buy every day.
40 x 50 = 2,000
Hope this helps!
Which is a property of an angle?
has two sides that each extend forever in both directions
has two endpoints
has two center points
has two rays that share a common endpoint
Answer:
has two rays that share a common endpoint
Step-by-step explanation:
An angle is formed by a two rays that share a common endpoint. The distance between the two rays is what makes the measure of the angle wider or smaller. Each ray extends in one direction forever; however since they share an endpoint, the rays do not extend in both directions forever. There is only one endpoint, not two, and there is only one center point (vertex), not two.
Which of the following is the linear parent function
Answer: The answer is C.
A Linear parent function is a function of the form f(x) = x
or y = x. This is the simplest of the linear functions, where the slope is 1 and the function pases for the point (0,0) (which is the same of saying that the intercept is 0).
a) isnt a linear function.
b) is a quadratic function.
d) is also a linear function, but it has a slope = 2, so it isn't the linear parent function.
what percent is the fraction 2/10 equal to
A symmetrical binomial distribution with large sample size can be approximated by a __________
Which type of statement has the form " if A, then B"?
Answer: Conditional statement
Step-by-step explanation:
In discrete mathematics, a conditional statement denoted by "if R then S " is an if-then statement where R represents a hypothesis and S represents a conclusion.
For example : If a number is divisible by 6 ,then it must be divisible by 2 ."
Here, Hypothesis R: " number is divisible by 6"
Conclusion S: "it must be divisible by 2"
Hence, an conditional statement has the form " if A, then B" .
A ship is carrying 10,250 pounds of individually boxed TV sets. If each box weighs 20.5 pounds, how many boxes are on the ship?
divide total weight by weight of each box
10250 / 20.5 = 500 boxes total
A tree that is 50 feet tall casts a shadow that is 60 feet long. Find the angle of elevation to the nearest degree of the sun
To find the angle of elevation of the sun, set up a right triangle with the height of the tree and the length of the shadow.
To find the angle of elevation of the sun, we need to set up a right triangle with the height of the tree (50 feet), the length of the shadow (60 feet), and the line from the top of the tree to the end of the shadow.
Using the information given, we can apply the tan(angle) = opposite/adjacent formula to find the angle of elevation.
By calculating the inverse tangent of the ratio of the height of the tree to the length of the shadow, we can determine the angle of elevation to be approximately 45 degrees.
The angle of elevation to the nearest degree of the sun is approximately 40 degrees.
To find the angle of elevation to the sun, we can use the tangent function in trigonometry.
Let's denote:
- Height of the tree = h = 50 feet
- Length of the shadow = b = 60 feet
The tangent of the angle of elevation (θ) is given by:
tan(θ) = opposite / adjacent
tan(θ) = h / b
Substitute the given values:
tan(θ) = 50 / 60
tan(θ) = 5 / 6
Now, to find the angle θ, we need to take the arctangent (inverse tangent) of the ratio:
θ = arctan(5/6)
θ ≈ 39.8 degrees
Therefore, the angle of elevation to the nearest degree of the sun is approximately 40 degrees.
Give the name of a quadrilateral that is formed when you have two bisected diagonals.
3y - 5z = -23
4x +2y +3z = 7
-2x - y - z = -3
In your answer, can you please show work so that I can understand it myself
Which of the following are always classified as a trapezoid? Select all that apply.
A. quadrilaterals
B. parallelograms
C. rectangles
D. rhombuses
E. squares
Answer:
everything except for a quadrilateral
Step-by-step explanation:
What is the difference between a sample mean and the population mean called?
A container is holding 2 1/3 liters of water.only 2/5 of the container is filled.how much will the whole container hold?
The whole container can hold [tex]5\frac{5}{6}[/tex] liters, calculated by setting up a proportion based on the part of the container currently filled with water ([tex]2\frac{1}{3}[/tex] liters representing 2/5 of the container).
To determine the full capacity of the container, we set up a proportion. Since [tex]2\frac{1}{3}[/tex] liters represent 2/5 of the container's capacity, we want to find out how much 5/5 (the whole) of the container can hold. To set up the proportion, we have:
(2/5) of the container = [tex]2\frac{1}{3}[/tex] liters
(5/5) of the container = x liters
Then, we multiply [tex]2\frac{1}{3}[/tex] liters by 5/2 to solve for x:
x = ([tex]2\frac{1}{3}[/tex] liters) * (5/2)
x = (7/3 liters) * (5/2)
x = 35/6 liters
x = [tex]5\frac{5}{6}[/tex] liters
So the whole container would hold [tex]5\frac{5}{6}[/tex] liters.
Which expression is equal to (-12-2i)+(2+2i)
a) 10
b) -10
c) 10-4i
d)-10-4i
To earn a fitness award, your average heart rate while walking must be between 80 and 89 beats per minute, inclusive. Suppose you recorded 85, 81, and 87 beats per minute on your first three recordings. What are the possible heart rates you can have on the fourth and final recording in order to earn a fitness award?
Answer:
between 67 and 103 beats per minute inclusive
Car insurance that pays for your injuries when you're in an accident in your car is _______ insurance.
A. collision B. liability C. comprehensive D. medical
simplify 1/5 b - 5 (2/5 a - 1/10 b) +4 a
simplify
A 2a - 3/10 b
B 2a + 7/10 b
C 2a - 7/10 b
D 2a +3/10 b
Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 3 inches, and the larger gear has a radius of 7 inches.
Part 1: What is the angle measure, in degrees and rounded to the nearest tenth, through which the larger gear has rotated when the smaller gear has made one complete rotation?
Part 2: How many rotations will the smaller gear make during one complete rotation of the larger gear?
Show all work.
Which graph represents the solution set of the system of inequalities?
x+y<1
2y≥x−4
I think its the one in the top right corner (the highlighted one)