The regular polygon with an interior angle of measure 135 is an octagon.
A regular polygon is a polygon that has equal side lengths and equal interior angle measures.
Interior angle of a polygon is the angle inside it that is formed by two adjacent sides. The number of interior angles formed inside a polygon is the same as the number of its sides. Meanwhile, the sum of all the interior angles of any polygon is constant to that polygon and depends on the number of sides.
sum = 180(n - 2)
Let n = number of sides of the polygon = number of interior angles
sum = measure of interior angle x n
Using the formula,
sum = 180(n - 2)
135n = 180(n - 2)
135n = 180n - 360
180n - 135n = 360
45n = 360
n = 8
If the polygon has 8 sides and 8 interior angles, then the regular polygon is an octagon.
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You put $550 in an account that earns 4.4% simple interest per year. How much interest do you earn in 6 months
The simple interest earned on the principal of $550 is $12.1.
What is meant by simple interest?Simple interest is calculated on the loan principal or the first deposit into a savings account. Because simple interest does not compound, a creditor would only pay interest just on principal amount, and a borrower will never be required to pay more interest on previously accumulated interest. Simple Interest (S.I.) is a technique for determining the interest amount for such a given principal amount at a given interest rate.The formula for simple interest is;
SI = PRT/100
where,
P is principal amount = $550
R is rate of interest = 4.4%
T is the total time in year; 6 months = 0.5 years.
Put the values in formula;
SI = 550×4.4×0.5 / 100
On simplification;
SI = 12.1
Thus, the simple interest incurred on the deposited principal is $12.1.
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Find the slope of the line through each pair of points. (0,0) and (2,6)
The slope of the line through each pair of points (0,0) and (2,6) is 3.
What is the slope of the line?The increase divided by the run, or the ratio of the rise to the run, is how a line's slope is calculated. It gives information about the line's slope in the coordinate plane. Finding the slope between two locations and calculating the slope of a line are related tasks.
The following formula is used to determine slope:
The slope of the line between two points is given by y2 - y1 / x2 - x1.
Given the points are -
(0,0) and (2,6)
The slope of the line passing through the points is -
= 6 - 0 / 2 - 0
= 6/2
= 3
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need help with this question x+12=2x-15
Answer: x=+27
Step-by-step explanation:
[tex]\huge\qquad\underline{{\tt answer : - }} [/tex]
[tex]x+12=2x-15 \\ x - 2x = - 12 - 15 \\ - x = - 27 \\ x = 27[/tex]
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i need help with this
Divide. State any restrictions on the variable. 5 x+15 / 10 x-10 ÷ x²+6 x+9 / 3 x² - 3
The restriction on the variable x for the expression 5x+15/10x-10÷x²+6 x+9/3x²-3 is x ≠ -3 .
Restriction in algebraic expression is defined as the value that makes the denominator as 0 or the whole expression as not defined.
For Example: 1/(x+2) , here the restriction is x ≠ -2 as -2 will make the denominator 0.
In the given question
[tex]=\frac{5x+15}{10x-10} \div\frac{x^{2} +6x+9}{3x^{2} -3}[/tex]
rewriting the expression
[tex]=\frac{5x+15}{10x-10} \times\frac{3x^{2} -3}{x^{2} +6x+9}[/tex]
Simplifying the numerator and denominator we get
=5(x+3)/10(x-1) x 3(x² -1)/(x²+3x+3x+9) ...( by splitting the middle term )
=5(x+3)/10(x-1) x 3(x-1)(x+1)/(x+3)(x+3) ...( using identity a²-b²=(a+b)(a-b) )
On further simplifying we get ,
=5*3*(x+1)/10(x+3)
=3(x+1)/2(x+3)
For finding restriction;
denominator, 2(x+3)≠0
means (x+3)≠0 ⇒ x ≠ -3.
Therefore , the restriction on the variable x is x ≠ -3 as -3 will make the expression not defined, and the value after division is 3(x+1)/2(x+3).
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What is the product of 6 and 13.5
Answer:
81
Step-by-step explanation:
6 multiplied by 13.5 gives the answer 81.
Answer: 81
Step-by-step explanation:
[tex]13.5*6=\\\\13.5*2*3=\\\\27*3=\\\\81[/tex]
How many fixed points are there for the function f(x)= x^5
To calculate the fixed point for the given function that is f(x)= x^5
The value of ‘x’ can take from one to infinity that means the range is (1,infinity)
Therefore,
The function can be represented as: [tex]f(x)= x^5[/tex]
The interval of the variable 'x' is: [tex]0 < x <[/tex]∝ (infinity)
And finally the range of the variable 'x' as: (1, 32,......,infinity)
What is the fixed point?
Fixed points are those points which do not change when they are mapped with different functions. It is also called as invariant points. The fixed point method is used for the calculation of those function which are in the form of constant.
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Arysville purchased new textbooks for its three elementary schools. about how many more books did they purchase for oak hill than elm street and woodland combined? textbooks purchased for marysville elementary schools elm street oak hill woodland 4,432 12,398 5,912
Using basic mathematical operations such as addition and subtraction, they purchase 2054 more books for Oak Hill than Elm Street and Woodland combined.
Elm Street = 4,432 books
Oak Hill = 12,398 books
Woodland = 5,912 books
Using addition, we can determine how many books are purchased for Elm Street and Woodland combined by adding their values.
Elm Street + Woodland
4,432 + 5,912 = 10,344
Using subtraction, determine how many more books did they purchase for Oak Hill than Elm Street and Woodland combined.
Oak Hill - (Elm Street + Woodland)
12,398 - 10,344 = 2054 books
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If you rotate point (4,2) 90°C and 180°C about the origin, how do the x - and y -coordinates change?
R (-90°) = (x, y) — > (y, -x) is the x - and y -coordinates change.
How is a point rotated with respect to the origin?
Rotational direction: clockwise or counterclockwise. Rotations that are positive are counterclockwise. Clockwise rotations are negative rotations. The following rule is used, for instance, to rotate the point (2, 5) 90 degrees counterclockwise around the origin.As it turns out, however, I don’t need to look at options. I can tell you that a clockwise rotation of 90° of a point about the origin is actually considered a rotation of -90°.
(For positive rotations are counterclockwise, while negative rotations are clockwise.) The rule for the type of rotation you speak of is
R (-90°) = (x, y) — > (y, -x)
One more point, if I may. It appears that you copied this problem verbatim right out of a textbook.
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Find following measure.
m DH
When an angle exists encircled by a circle, its measure exists equivalent to the intercepted arc's measure divided by two. The measure of m DH is 162.
What is meant by inscribed arc?
The arc that is inside the inscribed angle and whose endpoints are on the angle is known as the intercepted arc. Anywhere on the circle that the sides of an inscribed angle intersect to produce an intercepted arc can serve as the angle's vertex.
Angles with vertices on a circle and that cross an arc on the circle are said to be inscribed angles. Half of the intercepted arc's length and half of the central angle's length intersecting that same arc make up the measure of an inscribed angle. Congruent inscribed angles are those that intersect the same arc.
According to the Inscribed Angle Theorem, an inscribed angle's measure is equal to half of its intercepted arc's measure. Congruent inscribed angles are those that intersect the same arc.
An angle's measure is equal to the intercepted arc's measure divided by two when it is surrounded by a circle.
m DH = 2(m ∠F) = 162
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Determine whether the regular polygon will tessellate in the plane. Write yes or no. Explain.
pentagon
No, the regular polygon pentagon will not tessellate in the plane.
What is tessellation?A tessellation or tiling is the seamless application of one or more geometric shapes, known as tiles, to a surface, frequently a plane. Tessellation in mathematics can be expanded to include other geometries and higher dimensions.
A tiling constructed of materials like cemented ceramic hexagons or squares is referred to as a real-world tessellation. Such tilings may be ornamental designs or serve practical purposes such providing long-lasting and water-resistant pavement, floor, or wall coverings.
Tessellations were historically employed in Islamic art, such as the Moroccan architecture and the ornamental geometric tiling of the Alhambra palace. They were also used in Ancient Rome.
Regular polygons tessellate if their interior angles divide by 360° evenly or if the total of their interior angles is a factor of 360°. A tessellation is a pattern made of identical forms that fit together seamlessly.
So lets find out how pentagon won't tessellate.
First we find the measure of the interior angles of pentagon,
[tex]\frac{540\°}{5} = 108\°[/tex]
Now divide the interior angle by 360°
[tex]\frac{360\°}{108\°}[/tex] = 3.333
Hence, the measure of the interior angle does not divide by 360°.
Therefore, we conclude that the regular polygon pentagon will not tessellate in the plane.
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Wall Ab is covered in a mirror. If you stand at point C and look at point D, what point on wall BF will you see in the mirror? Label the point E and determine the distance from B to E.
The distance from B to E is 4/3 when wall AB covered in a mirror.
The virtual image created by reflection in a plane mirror is the mirror image of an object or two-dimensional figure; it is the same size as the original but different, unless the object or figure has reflection symmetry.
Angle ∠1 = Angle ∠2
So Triangle ADC = Triangle EBD
A line of reflection is required to accomplish a geometry reflection; the two figures' consequent orientations are opposing. Comparable distances separate the corresponding regions of the figures from the line of reflection. Ordered pair rules appear on the x-axis as (x, -y), the y-axis as (-x, y), and the line y=x as follows (y, x).
tan ADC = AC / AD
= 2/3
tan EBD = BE/BD
= x/2
if Triangle ADC = Triangle EBD
than AC / AD = BE / BD
2/3 = x/2
x = 4/3
Thus , when wall AB is covered in mirrors, the distance from B to E is 4/3.For point E see the attachment below -
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Word problem involving average rate of change
Answer: A. -2.2 B. -2.7
Step-by-step explanation: To find the rate of change is y2-y1/x2-x1.
For A y2=184.3, y1=140.3 x2=0 and x1=20. 184.3-140.3 will give you 44. 0-20 is -20. So 44 divided by -20 is -2.7.
For B its the same thing: y2=109.3, y1=28.3, x2=30, and x1=60. 109.3-28.3 is 81 and 30-60 is -30. 81 divided by -30 is -2.7.
Determine whether the statement is always, sometimes, or never true. Explain you reasoning.
Lines p and q intersect in points M and N .
A line segment is also a line but a line with finite length and fixed endpoints. The given statement "Lines p and q intersect in points M and N" can never be true.
What is a line?A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.
A line segment is also a line but a line with finite length and fixed endpoints.
The given statement "Lines p and q intersect in points M and N" will never be true, this is because two straight lines can only bisect once, therefore, at only a single point.
Although, the line may also bisect each other at infinite points but only if the line overlap with one another.
Since it is given that bisect each other at two points M and N.
Hence, The given statement "Lines p and q intersect in points M and N" can never be true.
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Determine whether the events are independent or dependent. Explain. Alita's basketball team is in the final four. If they win, they will play in the championship game.
For given situation the events are dependent.
In this question,
Alita's basketball team is in the final four.
we have been given two events.
event A: Alita's basketball team win.
event B: Alita's basketball team play in the championship game.
From given condition, If they win, they will play in the championship game.
We can clearly observe that the occurrence of event B is dependent on the other event A.
If event A occurs only then event B would be true.
Therefore, for given situation the events are dependent.
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The equation 2x-20/3
= 2x models temperature change, where x represents the difference in degrees in the last 24 hours. Solve for x.
3
The solution to the equation (2x - 20)/3 = 2x of temperature change gives x = -5.
What is defined as the temperature change?Temperature change - a change in the degree of hotness of the a body (or medium). Advection is the horizontal transmission of heat or even other atmospheric properties in meteorology.Temperature change definitions. a procedure for changing the degree of heat of a body (as well as medium).The given equation is;
(2x - 20)/3 = 2x
Simplify the equation;
2x - 20 = 6x
Bring variables together;
6x - 2x = -20
4x = -20
Divide by 4
x = -5
Therefore, the solution to the equation (2x - 20)/3 = 2x of temperature change gives x = -5.
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A number, n, is 9.27 when rounded to 2 decimal places.
Complete the inequality to show the lower and upper bounds of n.
9.27 rounded to 2 decimal places is 9.27
The important thing to remember is that you should round 9.270 to two digits or places after the decimal point. As a result, we wish to do rid of the final digit in 9.270. We utilize the following Two Decimal Places Rules to find the answer by removing the final digit in 9.270:
Rule #1 for two decimal places: If the final digit in 9.27 is less than 5, it should be removed.
Two Decimal Places Rule #2: If the second-to-last digit in 9.27 is less than 9 and the previous digit is 5 or greater, the last digit must be removed and one added to the second-to-last digit.
Three Decimal Places Rule #3: If the final digit in a number, such as 9.27, is five or more, the second to last digit is nine, and the third to last digit is less than nine, the last digit is eliminated, the second to last digit is changed to zero, and the third to last digit is increased by one.
Fourth Rule of Two Decimal Places: Add 1 to the value on the left side of the decimal point and change the right side of the decimal point to 00 if the final digit in 9.270 is 5 or more, the next-to-last digit is 9, and the next-to-last digit is 9.
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Let triangle ABC be a right triangle, and let H be the point on the side AB so that CH is perpendicular to AB.
Prove that (x+h)^2 + (y+h)^2 = (a+b)^2
(I would like a detailed answer)
Divide.
46)532
Enter your answer by filling in the boxes.
please help me if u cannn <33
Exact Form:
23
266
Decimal Form:
0.08646616...
y varies directly with x .
If y=-7 when x=-3 , find y when x=9 .
The required value of y is 21.
What is the constant of proportion?
A constant of proportion is illustrated as the ratio which relates two given quantities with each other in the relationship of proportion. Constant of proportion is also called constant variation, rate of change, and constant ratio.
Solving for the value of y
let k be a constant of proportion
When a quantity varies directly with others, then we have a relation, y = kx, —-- 1
Now, find k for given x = 3 and y = 7, we need to put these values in equation 1, i.e.
7 = k(3)
k = 7/3
k = 7/3
Further calculate y for given x = 6 and constant of proportion = 7/3 i.e.
y = (9)(7/3)
y = 21
Hence, the required value of y is 21.
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Find the value of x?
Answer: 70º
Step-by-step explanation: isosceles triangle (2 equal sides) means 2 equal angles
Answer:
Hi,
Answer 111
Step-by-step explanation:
This shape (a kite) has an axis of horizontal symmetry
Find the slope and y -intercept of each line.. -(1/3)x - (2/3)y = 5/3
The slope is (-1/2) an y -intercept is (-5/2) in the line -(1/3)x - (2/3)y = 5/3
What is a slope of line?A line's steepness and direction are determined by the slope of the line. Without actually using a compass, determining a line's slope in a coordinate plane allows one to anticipate whether a line is parallel, perpendicular, or not.
The change in a line's y coordinate relative to its change in x coordinate is referred to as the line's slope. Δy is the net change in the y coordinate, while Δx is the net change in the x coordinate.
Therefore,
m = y₂-y₁/x₂-x₁ (where m denotes the slope) can be used to express how the y coordinate changes in relation to the x coordinate.
Be aware that tan ∅ = y/x
We also refer to this tan as the line's slope.
We know that the equation for slope(m) and y - intercept(c) of a line is given by :
y = mx + c
Here the equation is -(1/3)x - (2/3)y = 5/3
⇒ -(1/3)x - (2/3)y = 5/3
⇒ - (2/3)y = (1/3)x + 5/3
⇒ [tex]\frac{-2y}{3}[/tex] = [tex]\frac{x + 5}{3}[/tex]
⇒ -2y = x + 5
⇒ y = [tex]\frac{x + 5}{-2}[/tex]
⇒ y = [tex]\frac{-1}{2}x -\frac{5}{2}[/tex]
Hence, slope is (-1/2) and y - intercept is (-5/2)
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A doggy daycare charges a $90 fee plus $15 each day to board a dog. the puppy palace charges $35 per day to board a dog. the cost to board the dog at each site is for a full day. how many days must someone board their dog for the total cost at a doggy daycare to be less expensive than puppy palace?
Answer:
5 days
Step-by-step explanation:
Answer:
All of theses are correct.
4.5
4 1/2
9/2
About 5.
How much will you have, if you invest $4700 at 5.8%/ a compounding quarterly for 25 years?
Answer:$19,829.10
Step-by-step explanation:
Compounded quarterly so use [tex]A = P(1+\frac{r}{n})^{nt}[/tex]
-Quarterly means 4 times a year
Initial Amount (P) = $4700
Rate = 5.8%
Time = 25 years
Plug everything into equation
[tex]A = 4700(1+\frac{0.058}{4})^{4*25}[/tex]
Insert into calculator and get:
$19,829.0996305 which is approximately $19,829.10
Round to the nearest hundredth because when dealing with money there are only two decimal places.
Answer:
$19,829.10
Step-by-step explanation:
Compound Interest Formula
[tex]\large \text{$ \sf A=P\left(1+\frac{r}{n}\right)^{nt} $}[/tex]
where:
A = Final amount.P = Principal amount.r = Interest rate (in decimal form).n = Number of times interest is applied per year.t = Time (in years).Given:
P = $4,700r = 5.8% = 0.058n = 4 (quarterly = 4 times a year)t = 25 yearsSubstitute the given values into the formula and solve for A:
[tex]\implies \sf A=4700\left(1+\dfrac{0.058}{4}\right)^{4 \times 25}[/tex]
[tex]\implies \sf A=4700\left(1+0.0145\right)^{100}[/tex]
[tex]\implies \sf A=4700\left(1.0145\right)^{100}[/tex]
[tex]\implies \sf A=4700(4.2189573...)[/tex]
[tex]\implies \sf A=19829.0996...[/tex]
Therefore, the account balance after 25 years will be $19,829.10 (nearest cent).
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TYY !
Using integer numbers, we have that:
1. The integer -5 would represent traveling west at -5 miles per hour, while the integer 5 would represent traveling east at 5 miles per hour.
2. The positions are given as follows:
Lin: 25 meters.Diego: -20 meters.Elena: 4.575 meters.Noah: -9.144 meters.What are integer numbers?Integer number are numbers that can have either positive or negative signal, but are whole numbers, meaning that they have no decimal part.
For the number line, we have that:
Points east of the origin are positive.Points west of the origin are negative.Hence, for item 1, we have that:
The integer -5 would represent traveling west at -5 miles per hour, while the integer 5 would represent traveling east at 5 miles per hour.
What is a proportion?A proportion is a fraction of a total amount, and the measures can be related using a rule of three, which derives from proportional relationships.
Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures, involving operations such as division and multiplication, as they involve unit rates.
For item b, to find the distance, we apply the proportion, multiplying the velocity by 5, hence the positions would be given by:
Lin: 25 meters.Diego: -20 meters.Elena: 4.575 meters. (15 feet, each ft = 0.3048 m, hence we apply two proportions here).Noah: -9.144 meters.More can be learned about integer numbers at brainly.com/question/17695139
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In ΔIJK, j = 960 inches, i = 200 inches and ∠I=68°. Find all possible values of ∠J, to the nearest degree.
According to the question, the given parameters of a triangle Δ IJK is given below:
j = 960 inches, i = 200 inches and ∠I = 68 degree.
As we know, the sum of the angle of a triangle is 180 degree.
Therefore, ∠I + ∠J + ∠K = 180 degree
Substituting above values in the given expression, we get:
∠J + ∠K = 180 - 68 = 112 degree
For isosceles triangle, two sides are equal. Therefore, ∠J = 56 degree
Hence, the calculated value for the ∠J is 56 degree.
What is triangle?
In the geometry of mathematics, the triangle can be defined as a polygon shape which has three edges as well as three vertices. There are three different forms of triangle which are known as scalene, isosceles and equilateral triangle.
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The diameter of a tennis ball is 2.7 inches, and the diameter of a baseball is 2.9 inches. How many times as great is the volume of the baseball as the volume of the tennis ball?
Volume of baseball is 1.24 times greater than volume of tennis ball.
We are given the diameter of baseball and tennis ball. So, firstly we will calculate the volume of tennis ball and baseball.
Volume of ball = 4/3πr³, where r stands for radius of ball.
Taking value of π as 3.14.
Volume of tennis ball = 4/3×π×2.7³
Volume of tennis ball = 82.4 m³
Volume of baseball = 4/3×π×2.9³
Volume of baseball = 102.1 m³
Now, finding the number of times volume of baseball is greater than volume of tennis ball.
Comparison - volume of baseball ÷ volume of tennis ball
Comparison - 102.1 ÷ 82.4
Comparison - 1.24
Hence, volume of baseball is 1.24 times of volume of tennis ball.
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Make a scatter plot of each set of points and describe the correlation.
(1.2,1),(2.5,6),(2.5,7.5),(4.1,11),(7.9,19)
A scatter plot is a series of points plotted on horizontal and vertical axes. If there is no correlation between variables, the points appear randomly scattered on the coordinate plane. If the correlation is high, the points will be clustered around a straight line. A scatter chart is a data visualization tool that helps show trends.
The scatter plot shows not only the correlation's magnitude but also the correlation's direction.
As the vertical (or Y-axis) variable increases, the correlation is positive as the horizontal (or X-axis) variable increases.
The correlation is negative if the y-axis variable decreases and the x-axis variable increases, or vice versa.
The correlation is zero if none of the above criteria can be established.
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Consider the functions f (x) = 2x² - 3 and g (x) = -x + 6.
f (g (4)) =
g (f (4)) =
f (4) = 61
g (4) = 2
Step-by-step explanation:
f(4) = 2(4)² - 3
f(4) = 8² - 3
f(4) = 64 - 3
f(4) = 61
g (4) = -4 + 6
g (x) = 2
Estimate the uncertainty in the momentum of an electron whose location is uncertain by a distance of 2 angstroms. what is the uncertainty in the momentum of a proton under the same conditions?
Δp≥5.2755∗10−25ms−1
According to the Heisenberg uncertainty principle, we have
δx∗δp≥ℏ2
Since Δx=1angstrom=10−10m,
Δp≥6.626∗10−344∗3.14∗10−10
Δp≥5.2755∗10−25ms−1
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