the diagram below shows a rectangle inside a regular hexagon . the apothem of the hexagon is 19.05 units . to the nearest square unit . what is the area of the shaded region
A. 1257
B.861
C.442
D.1653
Answers
Answer:
B. 861.Step-by-step explanation:
In the figure attached, you can observe that the shaded area can be found by calculating the difference between the area of the regular hexagon and the area of the rectangle inside.
The area of a regular hexagon is defined as
[tex]A_{hexagon} =\frac{Pa}{2}[/tex]
Where [tex]P[/tex] is the perimeter and [tex]a[/tex] is the apothem.
By given, we know that the side of the hexagon is 22 units.
Remember that the perimeter is the sum of all sides, in this case would be
[tex]P_{hexagon}=22(6) =132[/tex].
The perimeter of the hexagon is 132 units.
Therefore, the area is
[tex]A_{hexagon} =\frac{132(19.05)}{2}=\frac{2514.6}{2}=1257.3 u^{2}[/tex]
On the other hand, the area of the rectangle is defined as
[tex]A_{rectangle}=bh[/tex], where [tex]b[/tex] is the base and [tex]h[/tex] is the height. We know, by given
[tex]b=22\\h=18[/tex]
Replacing these values, we have
[tex]A_{rectangle}=bh=22(18)=396 u^{2}[/tex]
As we said before, the shaded are is defined by the following difference
[tex]A_{shaded}=A_{hexagon}-A_{rectangle}[/tex]
Replacing each area, we have
[tex]A_{shaded}=A_{hexagon}-A_{rectangle}\\A_{shaded}=1257.3u^{2} -396u^{2}=861.3 u^{2}[/tex]
Therefore, the right answer is B. 861.
Related Questions
Does the graph represent the function?
Answers
Jason has 75 feet of wallpaper border. He wants to put up a wallpaper border around his rectangular bedroom that measures 12 feet by 14 feet. He multiplies 12 x 14 = 168 to get an exact answer of how much border he needs. He concludes that he does not have enough border for the whole job.
1. Tell how you can critique Jason’s reasoning.
2. Critique Jason’s reasoning
3. Jason uses an overestimate to decide how many rolls of wallpaper he needs for another’s room. Explain why his reasoning to use an overestimate does or does not make sense
Answers
the tape is 75 feet long
the bedroom is 12 feet by 14 feet.
1. Tell how you can critique Jason’s reasoning.
If you want to Critique Jason's reasoning, you could a) ask yourself the same questions that Jason did and see if you would come with the same answers and used the same analysis or b) analyse Jason's answer to see if he did a mistake or missed an important detail and made a thought mistake
2. Critique Jason’s reasoning
I will use the option b from above:
?
Jason first multiplied 12 x 14 = 168. This multiplication is correct, but what did he get? He needed to get the perimeter of the bedroom because it was only the wallpaper border, not the wallpaper itself - so getting the perimeter was needed, but this we get by the formula ( 2* *(length+width), not length* width - as Jason did.
So Jason made a mistake here! his actual answer should be 2*(12+14)=2*26=52, so the tape of 75 feet would have been enough!
3. Jason uses an overestimate to decide how many rolls of wallpaper he needs for another’s room. Explain why his reasoning to use an overestimate does or does not make sense
Using an overestimate is often a good idea- in case some of the tape gets damaged, he will have some left. However, since his calculations are wrong by a lot (he multiplies rather than adds and multiplies by 2), his overestimate will be a lot higher than would be practical - he would be left with a lot of leftovers and spend too much money. So his reasoning does not make sense
is 2x-5y=10 a function ------is it linear or nonlinear?
Answers
It is linear when 2x- 5y = 10. A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 Or 1.
How can we tell whether a function is linear or not?Looking at a function’s graph will reveal if it is linear or not with the greatest ease. When a linear function is plotted on a graph, a straight line is formed.
A nonlinear function Is curved in some way; it does not form a straight line.
How is a function defined as linear?The graph of a linear function is a straight line. One independent variable and one dependent variable make up a linear function.
X and Y are the independent and dependent variables, respectively. The constant term, or a, is the y-intercept.
Is a function 2x-5y=10 real? Is it nonlinear or linear?Given that a linear equation is an equation of a straight line, its degree must be either 0 or 1.
For every one of its elements. In this instance, both the degree of the variables Y and X is 1.
Resolve the Y equation.
2x-5y=10
Y=-2+2x/5
Hence Given that a linear equation is an equation of a straight line, its degree must be either 0 or 1. For every one of its elements. The degree of the variable Y in this instance is 1, while the degree of the variable X is linear at 1.
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What does .9999 rounded to the thousandths?
Answers
hope this helps
∠E and ∠F are vertical angles with m∠E=5x+10 and m∠F=7x−12 . What is the value of x? Enter your answer in the box.
Answers
5x+10=7x-12
10=2x-12
22=2x
11=x
The coordinate of the midpoint of segment AB is (-3, 2). Find the coordinate of A if the coordinate of B is (0, 2).
A =
(-6,2)
(-3/2,2)
(3,2)
Answers
Given that AE is a tangent of the circle with the center at B, BC = 3.5, and AE = 24, which is the length of EC?
7
13
25
49
Answers
We are actually given here a right triangle where EC is the hypotenuse. The length of one side is AE = 24, and the other side AC is simply twice BC, so AC = 7:
EC^2 = AE^2 + AC^2
EC^2 = 24^2 + 7^2
EC = 25
The length of a rectangle is 1 ft more than double the width, and the area of the rectangle is 45 ft2 . find the dimensions of the rectangle.
Answers
A = 45
L = 2W + 1
45 = W(2W + 1)
45 = 2W^2 + W
2W^2 + W - 45 = 0
(2W - 9)(W + 5) = 0
W + 5 = 0
W = -5...not this one because it is negative
2W - 9 = 0
2W = 9
W = 9/2
W = 4.5 <=== the width is 4.5 ft
L = 2W + 1
L = 2(4.5) + 1
L = 9 + 1
L = 10 <=== the length is 10 ft
The width of the rectangle is 4.269ft and the length is 8.538 ft.
What are the area and perimeter of a rectangle?We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.
Given, The length of a rectangle is 1 ft more than double the width.
Assuming the width to be x ft, therefore length would be (2x + 1) ft.
We know area of a rectangle(A) = length×width.
∴ x×(2x + 1) = 45.
2x² + 2x = 45.
2x² + 2x - 45 = 0.
[tex]x_{1,\:2}=\frac{-2\pm \sqrt{2^2-4\cdot \:2\left(-45\right)}}{2\cdot \:2}[/tex].
[tex]x_1=\frac{-2+2\sqrt{91}}{2\cdot \:2},\:x_2=\frac{-2-2\sqrt{91}}{2\cdot \:2}[/tex].
[tex]x=\frac{-1+\sqrt{91}}{2},\:x=-\frac{1+\sqrt{91}}{2}[/tex].
[tex]\left(\m\quad x=4.26969\dots ,\:x=-5.26969\dots \right)[/tex].
∴ x = 4.269ft is the admissible value as length can not be negative.
∴ length is 8.538 ft.
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The equation of line m is 4x+5y=−2. What is the slope of a line that is perpendicular to line m?
Answers
4x + 5y = -2
5y = - 4x - 2
y = -4/5 x - 2/5
the slope of this line is -4/5 and slope of line perpendicular to it is - 1 / -4/5
= 5/4 answer
The required slope of a line will be 5/4 which is perpendicular to line m.
What are the perpendicular lines?Perpendicular lines are two lines that cross one other and create a 90-degree angle. Two lines are perpendicular if the product of their slopes is -1.
The equation of line m is given in the question below as:
⇒ 4x + 5y = −2
We have to determine the slope of a line that is perpendicular to line m
First, we need to find the slope of line m
To convert to slope-intercept form
⇒ 4x + 5y = -2
⇒ 5y = - 4x - 2
⇒ y = -4/5 x - 2/5
So the slope of this line is -4/5 and the slope of a line perpendicular to it is
⇒ - 1 / (-4/5)
Reciprocal the terms in the numerator,
⇒ 5/4
Therefore, the required slope of a line will be 5/4 which is perpendicular to line m.
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Find the axis of symmetry for this parabola : y= 2(x-7)(x+9)
Answers
y = 2x - 14x (x +9)
y = 2x^2 +18x -14x^2 + 126x
y = -12x^2 +144x
axis of symmetry = -b / 2a
= -144 / 2*-12
= 6
axis of symmetry x = 6
Which expression is equivalent to 3x(1.05)?
A: 3x + 3x + 3x
B: 1.05x + 1.05x + 1.05x
C: x + 3.15
D: 1.05x + 3
Answers
answer
B: 1.05x + 1.05x + 1.05x
An employee works 21 days per month if they worked an average of 7.5 hours per day how many hours do they work per month
Answers
You can verify that by dividing 157.5 by 21 to see how many hours she worked in a day.
157.5 divided by 21 is 7.1 hours
My answer is correct!
How many ways can i distribute 3 slices of pizza to 3 people of fairness doesn't matter?
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The equation 4(2x + 3y) =4(3y +2x) is an example of which property? Question 4 options:
A. Distributive Property
B. Identity Property of Addition
C. Associative Property of Addition
D. Commutative Property of Addition
Answers
The equation 4(2x + 3y) = 4(3y + 2x) is representing the Commutative Property of Addition, which means the order in which you add numbers does not change the sum.
Explanation:The equation in your question, 4(2x + 3y) = 4(3y +2x), is an example of the Commutative Property of Addition. This property means that the order in which you add numbers does not change the sum. In this case, (2x + 3y) and (3y + 2x) are the same because of the Commutative Property of Addition, the order of 2x and 3y doesn't impact the result. The multiplication by 4 on both sides does not change this property being applied.
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Economists study the way society uses its resources. One important resource studied is agriculture. The recent increase in demand for organic produce has created some interesting economic scenarios for both farmers and consumers. Click the link to learn key facts about the economics of organic produce and answer a few questions. Which is a reason that organic farming is more expensive than conventional farming? How many years must a farm be run organically before its produce can be labeled as “organic”? Why do most small organic farms pay a higher percentage of their profit for farming equipment than conventional farms?
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Answer:
Which is a reason that organic farming is more expensive than conventional farming?
Organic farmers must pay for a costly certification process
How many years must a farm be run organically before its produce can be labeled as “organic”?
3
What is a benefit of crop rotation?
Rotating crops can help build healthy soil.
Step-by-step explanation:
Just took the test!
Answer:
Economists study the way society uses its resources. One important resource studied is agriculture. The recent increase in demand for organic produce has created some interesting economic scenarios for both farmers and consumers. Click the article to learn key facts about the economics of organic produce and answer a few questions.
Which is a reason that organic farming is more expensive than conventional farming?
✔ Organic farmers must pay for a costly certification process.
How many years must a farm be run organically before its produce can be labeled as “organic”?
✔ 3
What is a benefit of crop rotation?
✔ Rotating crops can help build healthy soil.
Step-by-step explanation:
just got it on edge
Raise to the power:
(–0.2xy)4
Answers
-0.0016 x^4 y^4. The ^ symbols just mean that it’s to the power of four. x^4 = x to the power of four.
Translate and solve: the quotient of a number x and -8 is 25
Please help,
Thank you :)
Answers
x/-8 = -25
Thus, to solve for x, multiply both sides by -8:
x/-8(-8) = -25(-8)
x = 200
tom can wash 44 plates in 3 minutes. how many seconds will it take him to wash 12 wash? show your work.
Answers
Dona found that she had 7 almonds left over after filling a number of bags with 25 almonds each. She let b represent the number of bags and wrote an expression to represent the total number of almonds. She found that mr022-1.jpg and then substituted to find the total number of almonds.
Answers
7 almonds are left
25 bags in each bag
25almonds x 20 bags= 500 almonds
500 almonds + 7 left = 507 total almonds
25b +7 would be the correct expression
The total number of almonds can be represented by the equation:
x = 25b + 7
How to solve Algebra Word problems?We can use the information given in the question to set up an equation to represent the total number of almonds.
Let b represent the number of bags, and
let x represent the total number of almonds.
According to the problem, each bag contains 25 almonds, and there are 7 almonds left over. Therefore, the total number of almonds can be represented by the equation:
x = 25b + 7
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Students in a science class are divided into 6 equal groups with at least 4 students in each group for a project. write and solve an inequality that represents the number of students in the class
Answers
There are a total of 6 groups.
And each group contains at least 4 students.
So the minimum number of students is:
minimum = 6 * 4 = 24 students
Let us say that x represents the number of students, hence:
x ≥ 24
To represent the number of students in the class, we can write the inequality 24 ≤ x.
Explanation:To represent the number of students in the class, let's assume that the total number of students in the class is represented by the variable 'x'. Since the students are divided into 6 equal groups and each group has at least 4 students, we can write the inequality:
6 * 4 ≤ x
Simplifying the inequality:
24 ≤ x
This inequality represents that the total number of students in the class should be greater than or equal to 24.
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Given that the rectangle above has a perimeter of 34 units, find . round the answer to the nearest hundredth.
Answers
Find the quotient. y 9 ÷ y 3 y3 y6 y9 y27
Answers
answer
y^6
Answer:
The quotient is [tex]y^6[/tex]
Step-by-step explanation:
Given expression is,
[tex]y^9\div y^3[/tex]
[tex]=\frac{y^9}{y^3}[/tex]
By using quotient of powers property of exponent,
[tex]\frac{a^n}{a^m}=a^{n-m}[/tex]
[tex]=y^{9-3}[/tex]
[tex]=y^6[/tex]
Hence, the quotient is [tex]y^6[/tex]
Second option is correct.
The length of a rectangle is twice the width. the perimeter is 32 cm more than the width. find the dimensions of the rectangle.
Answers
Length: 2x
Perimeter=2x+2x+x+x=6x
32 cm more than width means x+32
6x=x+32
5x=32
x=6.4
Dimension is 6.4×12.8 (width×length)
The dimensions of the rectangle are 6.4 and 12.8 respectively.
What is the perimeter of the rectangle?The formula for calculating the perimeter of a rectangle is given by :
P = 2 ( L + w )
The length of a rectangle is twice the width. And the perimeter is 32 cm more than the width.
L = 2w
Now substituting into the formula , we have
Width: x
Length: 2x
Perimeter P = 2 ( L + w ) = 2(3x) = 6x
Since 32 cm more than width means x+32
6x = x + 32
5x = 32
x = 6.4
Hence, Dimension is 6.4 × 12.8.
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the sum of three integers is 92. the second number is three times the first number. the third number is ten less than twice the first number. find the integers
Answers
1st number = x
2nd number = 3x
3rd number = 2x-10
x +3x + 2x-10 =92
6x - 10 = 92
6x =102
x = 102/6
x = 17
1st number = 17
2nd number = 17*3 = 51
3rd number = 17 *2 = 34-10 = 24
17 + 51 + 24 = 92
3 numbers are 17, 51 and 24
A science museum charges an admission fee of $10 per adult and $6 per child. If the museum had 2,000 visitors on a particular day and the total collection was $18,800, how many adults and children visited the museum?
Answers
c = child
10a + 6c = 18,800
a + c = 2,000
In the second equation, subtract c from both sides.
a = 2000 - c
Put this into the first equation.
10(2000 - c) + 6c = 18800
Multiply everything in the parenthesis by 10.
20,000 - 10c + 6c = 18,800
Combine like terms.
20,000 - 4c = 18,800
Subtract 20,000 from both sides.
-4c = -1,200
Divide -4 on both sides.
c = 300
Put this into the second equation.
a + 300 = 2,000
Subtract 300 from both sides.
a = 1,700
Hope this helps!
Write each mixed number as an improper fraction. 1 7/8 1 7/12 2 1/2 NEED BRAINLIEST!!!
Answers
What are the x and y-intercepts of the line described by the equation?
3x−9y=10.8
Enter your answers, in decimal form, in the boxes.
x-intercept =
y-intercept =
Answers
3x - 9y = 10.8
3x - 9(0) = 10.8
3x = 10.8
x = 10.8/3
x = 3.6 or (3.6,0) <== ur x int
to find the y int, sub in 0 for x and solve for y
3x - 9y = 10.8
3(0) - 9y = 10.8
-9y = 10.8
y = -10.8/9
y = - 1.2 or (0,-1.2) <== ur y int
The x-intercept and the y-intercept of the line described by the equation 3x - 9y = 10.8 are 3.6 and -1.2
The x-intercept of a line is the point where y-coordinate is zero while the y-intercept of the line is the point where the x-coordinate is zero
Given the expression 3x - 9y = 10.8
Get the x-intercept. If y = 0
3x - 9(0) = 10.8
3x = 10.8
x = 10.8/3
x = 3.6
Get the y-intercept. If x = 0
3(0) - 9y = 10.8
-9y = 10.8
y = -10.8/9
y = -1.2
Hence the x-intercept and the y-intercept of the line described by the equation 3x - 9y = 10.8 are 3.6 and -1.2
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If each password must contain at least one upper-case letter, one lower case letter and one number, how many passwords are there? unanswered
Answers
So it will be 26x26x10=6,760
I can’t seem to figure out how I would graph this? Someone help please
Answers
the probability distribution table shows the proportion of people living in the five different regions of a city there are now 4200 residents in the city.
How many live in the south region?
Photo attached
Answers
4200 ×.16 = 672
672 residents
Answer: Number of residents live in south region= 672 residents.
Step-by-step explanation:
Given:- Total residents in the city =4200
let A be the event of residents live in south region the,
Probability of residents live in south region P(A) = 0.16
So, Number of residents live in south region=Product of probability of residents live in south region and total residents in the city =0.16×4200=672 residents.