Answer:
355.94 cm2
Step-by-step explanation:
if it is the area of the shaded part, you have to find the area of rectangle and the area of the circle, then subtract the rectangle's area from the circle's.
area of circle = 3.14( i used this π because the radius is not divisible by 7) × 11 × 11 = 379.94.
area of rectangle = 6 × 4 = 24cm
379.94 - 24.00 = 355.94cm2.
Yasmine is serving ice cream with the birthday cake at her party. She has purchased 19 1/2 pints of ice cream. She will serve 3/4 of a pint to each guest. How many guests can be served ice cream?
26
Step-by-step explanation:
39/2÷3/4
39/2×4/3
26
Answer:
Okay she purchased 19.5 pints of ice cream and will give 3/4 to each guest.
1. 3/4= 0.75
2. Divide 19.5 to 0.75 19.5/0.75 is 26
3. She can give 26 guests ice cream
Solve 7x + 6 <3(x - 2).
A. {xlx>-3}
B. {xlx<-3}
C. {xlx<-2}
D. {x1x<0}
Answer:
x<-3
Step-by-step explanation:
Q10
G 10. If y = Cnt" is a power series solution about the ordinary point In = of the differential equation y" - Ty' + 4y = 0, then the coefficients, satisfy (n + 2) n21 (n+1)(x + 3) (11 +1) (b) Cn+2 - n1
Therefore, the correct answer is:
(a) (n+2)Cn+2 = (n-4)Cn - nCn-1
The given differential equation is y" - Ty' + 4y = 0, where T(x) = x.
Assuming a power series solution of the form y = Σ Cn(x-x0)^n about the ordinary point x0 = 0, we can differentiate y twice and substitute it into the differential equation:
y' = ΣnCn(x-x0)^(n-1)
y'' = Σn(n-1)Cn(x-x0)^(n-2)
Substituting these expressions into the differential equation, we get:
Σn(n-1)Cn(x-x0)^(n-2) - xΣnCn(x-x0)^(n-1) + 4ΣnCn(x-x0)^n = 0
Multiplying through by (x-x0)^2 to eliminate the negative exponents, we get:
Σn(n-1)Cn(x-x0)^n - xΣnCn(x-x0)^(n+1) + 4ΣnCn(x-x0)^(n+2) = 0
Now, we can compare the coefficients of like powers of (x-x0) on both sides of the equation. We get:
n = 0: -x0C0 + 4C2 = 0 => C2 = x0C0/4
n = 1: 0 - x0C1 + 8C3 = 0 => C3 = x0C1/8
n = 2: 2C2 - 2x0C3 + 12C4 = 0 => C4 = (7x0^2/48)C0
We can continue this process to find an expression for Cn in terms of C0:
C2 = x0C0/4
C3 = x0C1/8
C4 = (7x0^2/48)C0
C5 = (5x0/64)(C1 - 3C0)
C6 = (11x0^3/1152)C0 + (7x0/576)C2
and so on.
Using this pattern, we can write the general formula for Cn in terms of C0:
Cn = AnC0
where An is a polynomial in n of degree at most n+2. We can find the first few values of An by using the recursion formula obtained above:
A2 = x0/4
A3 = x0/8
A4 = (7x0^2/48)
A5 = (5x0/64)(C1/C0 - 3)
A6 = (11x0^3/1152) + (7x0^3/4608)
Thus, the coefficients Cn satisfy the relation:
(n+2)Cn+2 = (T(n)-4)Cn - nCn-1
Substituting T(x) = x, we get:
(n+2)Cn+2 = (n-4)Cn - nCn-1
which matches with option (a). Therefore, the correct answer is:
(a) (n+2)Cn+2 = (n-4)Cn - nCn-1
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A power-generating windmill is being designed and will consist of a tower with three large blades that rotate on a central hub at the top of the tower. The height of the tower from the ground to the center of the hub where the 3 blades meet is 262 feet, and the length of the blades from the center of the hub to the tip of each blade is 148 feet. The tower is in the shape of a right circular cylinder that has a diameter of 40 feet,
What is the area of the base of the tower to the nearest square foot?
When adjusted to the closest whole integer, the base of the skyscraper has a square footage of roughly 1257 square feet.We must determine the location of the tower's foundation because it has the shape of a right circular cylinder.
Area of base =\(\pi * (radius)^2\)
We must compute the area of the circular base of the right circular cylinder in order to determine the size of the tower's base. A circle serves as the foundation of a cylinder, and the formula to get its area is A = r2, where A stands for area and r for radius.
The cylinder's 40-foot diameter is all that is provided. By dividing the diameter by two, one can determine the radius:
The radius of the tower can be calculated by dividing its 40-foot diameter by its two-foot radius. Thus, we get 20 feet when we split the radius (r) of 40 feet by two.
Radius = \(40 ft / 2 = 20 ft\)
Now we can calculate the area of the base using the formula:
Area of base =\(\pi* (20 ft)^2\)
Using an approximation of π as 3.14159, we can evaluate the expression:
Area of base ≈ \(3.14159 * (20 ft)^2\)
Area of base ≈\(3.14159 * 400 ft^2\)
Area of base ≈ \(1256.636 ft^2\)
Using an approximation of π as 3.14, we can calculate the area by multiplying 3.14 by 400. This gives us an approximate value of 1256 square feet for the area of the base of the tower.
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Warning answer this seriously and give answer if not I flagged
A crayon factory makes 13 colors of crayons. They put 7 of each color crayon in each box. The factory produces enough crayons to fill 7 boxes per hour, 13 hours a day. How many crayons does the factory produce in 70 days?
Answer:
82,810 crayons in 70days
help i hate math pls
Answer:
31.5
cubic inches of sand will fit in the container because 4.5 x 3.5 • 2 = 31.5in.^3
Jim is twice as old as his sister. If s isthe sister's age, what is the sum of their ages?
Answer:
3s
Step-by-step explanation:
Given:
Jim is twice as old as his sister.
His sister's age is signified by the variable s.
∴ Jim's age is 2s.
You are trying to find the sum of both their ages, or add them together:
2s + s
Simplify. Combine like terms:
2s + s = 3s
3s is the expression you will use to find the sum of their ages.
cual es mayor 13/4 o 1 3/4
1 3/4 = 1.75
13/4 = 3 1/4
3 1/4 = 3.25
1.75 < 3.25
1 3/4 < 13/4
Drag each tile to the correct box. Using the order of operations, what are the steps for solving this expression? 8 x 3 (4213) +52 +4 x 3 Arrange the steps in the order in which they are performed. 16 13 - 5² 4² 8+25 33 + 12 24 3 8 × 3 4 x 3 ↓ ↓ 40-
The steps for solving the expression 8 x 3 (4213) + 52 + 4 x 3 in the correct order are 16, 384, 12, 436, 448.
To solve the expression 8 x 3 (4213) + 52 + 4 x 3 using the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction), the steps should be performed in the following order:
Start by simplifying the expression within the parentheses: 4213 = 16.
Expression becomes: 8 x 3 x 16 + 52 + 4 x 3
Perform the multiplication operations from left to right:
8 x 3 x 16 = 384
Expression becomes: 384 + 52 + 4 x 3
Continue with any remaining multiplication operations:
4 x 3 = 12
Expression becomes: 384 + 52 + 12
Perform the addition operations from left to right:
384 + 52 = 436
Expression becomes: 436 + 12
Finally, perform the remaining addition operation:
436 + 12 = 448
Therefore, the steps for solving the expression 8 x 3 (4213) + 52 + 4 x 3 in the correct order are:
16, 384, 12, 436, 448.
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The gaseous elementary reaction (A+ B2C) takes place isothermally at a steady state in a PBR. 30 kg of spherical catalysts is used. The feed is equimolar and contains only A and B. At the inlet, the total molar flow rate is 20 mol/min and the total volumetric flow rate is 20 dm? ka is 1.5 dm /mol. kg. min) Consider the following two cases: • Case (1): The volumetric flow rate at the outlet is 6 times the volumetric flow rate at the inlet. • Case (2): The volumetric flow rate remains unchanged. a) Calculate the pressure drop parameter (a) in case (1). (15 pts/ b) Calculate the conversion in case (1). [15 pts) c) Calculate the conversion in case (2). [10 pts) d) Comment on the obtained results in b) and c).
a) To calculate the pressure drop parameter (α) in case (1), we can use the following equation:
α = (ΔP / P_inlet) * (V_inlet / V_outlet)
where:
ΔP = Pressure drop (P_inlet - P_outlet)
P_inlet = Inlet pressure
V_inlet = Inlet volumetric flow rate
V_outlet = Outlet volumetric flow rate
In this case, the volumetric flow rate at the outlet is 6 times the volumetric flow rate at the inlet. Let's assume the inlet volumetric flow rate (V_inlet) is V dm³/min. Therefore, the outlet volumetric flow rate (V_outlet) would be 6V dm³/min.
Now, let's substitute the values into the equation and solve for α:
α = (ΔP / P_inlet) * (V_inlet / V_outlet)
α = (P_inlet - P_outlet) / P_inlet * V_inlet / (6V)
α = (P_inlet - P_outlet) / (6P_inlet)
b) To calculate the conversion in case (1), we need to use the following equation:
X = (V_inlet - V_outlet) / V_inlet
where: V_inlet = Inlet volumetric flow rate
V_outlet = Outlet volumetric flow rate
In case (1), we already know that V_outlet = 6V_inlet.
Let's substitute the values into the equation and solve for X:
X = (V_inlet - 6V_inlet) / V_inlet
X = -5V_inlet / V_inlet
X = -5
c) In case (2), the volumetric flow rate remains unchanged. This means that V_outlet = V_inlet.
To calculate the conversion in case (2), we can use the same equation as in case (1):
X = (V_inlet - V_outlet) / V_inlet
Substituting V_outlet = V_inlet into the equation, we get:
X = (V_inlet - V_inlet) / V_inlet
X = 0
d) In case (1), the pressure drop parameter (α) is calculated to be (P_inlet - P_outlet) / (6P_inlet). The negative conversion value (-5) indicates that the reaction has not occurred completely and there is some unreacted A and B remaining.
In case (2), the conversion is calculated to be 0, indicating that no reaction has occurred. This is because the volumetric flow rate remains unchanged, and therefore, there is no change in the reactant concentration.
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pls help ...........
The absolute error of the veterinarian's estimate is: 0.4 kg
The Percentage error the veterinarian's estimate is: 5.7%
What is Absolute Error and Percentage Error?Absolute error = |x0 - x|Percentage error = (|x0 - x|)/x0 × 100Where, x = actual value, and x0 = measured valueGiven:
x = 7.4 kg
x0 = 7 kg
Absolute error = |7 - 7.4| = 0.4 kg
Percentage error = 0.4/7 × 100 = 5.7%
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Simplify each of the following:
a. √5+2√6 + √5-2√6
b.(√p^2+1 - √p^2-1) (√p^2-1 + √p^2+1)
2√5 exact form
4.47213595 decimal form
BRO SOMEONE HELP!! please
Answer:
a) It would take 52 seconds.
b) That altitude will be 7 093.
Step-by-step explanation:
a) x= The seconds
=> 65,5X+3687=40,25X+5000
<=> 25,25x=1313
<=> x= 52
b) 65,5.52+3687=7093
1. What is the equation, in standard form, of a parabola that contains the following points? (1 point)
(-2, 18), (0.2). (4, 42)
Oy=-222 - 2x - 3
Oy=-3x2 + 2x - 2
Oy = 3x2 - 2x + 2
Oy=-2x2 + 3x + 2
Answer:
y=3x2−2x+2
Step-by-step explanation:
Standard form of equation of a parabola is \(y=ax^2+bx+c\)
As it passes through points (−2,18), (0,2) and (4,42), each of these points satisfies the equation of parabola and hence
18=a⋅4+b⋅(−2)+c or 4a−2b+c=18 ........(A)
2=c ........(B)
and 42=a⋅16+b⋅4+c or 16a+4b+c=42 ........(C)
Now putting (B) in (A) and (C), we get
4a−2b=16 or 2a−b=8 and .........(1)
16a+4b=40 or 4a+b=10 .........(2)
Adding (1) and (2), we get 6a=18 or a=3
and hence b=2⋅3−8=−2
Hence equation of parabola is \(y=3x^2 -2x+2\) and it appears as shown below
graph{3x^2-2x+2 [-10.21, 9.79, -1.28, 8.72]}
the graph of function f is shown. function g is represented by the equation. g(x)=8(1/2)^x which statement correctly compares the two functions?
The statement that correctly compares the two functions include the following: D. They have different y-intercepts but the same end behavior.
What is y-intercept?In Mathematics and Geometry, the y-intercept is sometimes referred to as an initial value or vertical intercept and the y-intercept of any graph such as a linear equation or function, generally occur at the point where the value of "x" is equal to zero (x = 0).
By critically observing the graph and the functions shown in the image attached above, we can reasonably infer and logically deduce the following y-intercepts:
y-intercept of f(x) = (0, 4).
y-intercept of g(x) = (0, 8).
Additionally, the end behavior of both functions f(x) and g(x) is that as x tends towards infinity, f(x) and g(x) tends towards zero:
x → ∞, f(x) → 0.
x → ∞, g(x) → 0.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Uh help me I guess you don’t have to if you don’t want to though
Answer:
12cm³
Step-by-step explanation:
1/2x2x6x2=12cm³
Answer:
6x2 well the answer is 24 so like
Step-by-step explanation:
Show that the series is convergent. How many terms of the series do we need to add in order to find the sum to the indicated accuracy
The total of five terms of the series we need to add in order to find the sum to the indicated accuracy.
What is convergent series?A series called convergent if the sequence of it's own partial sums tends to the a limit; that is, when addition one after the other with in order specified by the indices, partial sums become increasingly closer to a certain number.
Step1: The given series is a alternating series;
\(\sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n^{6}}\)
where \(a_{n}=\frac{1}{n^{6}}\) is decreasing monotonically with n>1.
Thus, the given alternating series is convergent series.
As a result, we determine the smallest n such that; \(a_{n}\) < 0.00005.
Thus, it is concluded that the total of the series' first n-1 terms approximates the sum within in the allowed error.
Step 2: We must discover the smallest n such that,
\(\begin{aligned}\frac{1}{n^{6}} & < 0.00005 \\\frac{1}{n^{6}} & < \frac{5}{100000}\end{aligned}\)
Taking reciprocal both side,
Because both side is positive, the inequality is reversed.
\(\begin{aligned}n^{6} & > \frac{100000}{5} \\n^{6} & > 20000\end{aligned}\)
Use hit and trial to get the result.
\(\begin{gathered}a_{2}=2^{6}=64 \\a_{3}=3^{6}=729 \\a_{4}=4^{6}=4096\end{gathered}\)
\(\begin{gathered}a_{5}=5^{6}=15625 \\a_{6}=6^{6}=46656 \quad( > 20000)\end{gathered}\)
The smallest integer that fulfils this inequality gets satisfied is n=6.
As a result, n=6 is the lowest amount with an inaccuracy of less than 0.00005.
Therefore, to calculate the sum inside that allowed error, we simply have to add the very first five terms in the series.
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The complete question is-
Show that the series is convergent. How many terms of the series do we need to add in order to find the sum to the indicated accuracy? \(\sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n^{6}}\)
What kind of curve do the following parametric equations (x,y):x=t−1,y=t2−1 describe? A. hyperbola B. polynomial of degree 2 C. straight line D. circle E. polynomial of degree 4
The parametric equations (x, y) = (t - 1, t^2 - 1) describe a curve that is a polynomial of degree 2, which corresponds to option B.
In the given parametric equations, the x-coordinate is defined as x = t - 1, and the y-coordinate is defined as y = t^2 - 1. These equations show that both x and y are expressed as functions of t. When we eliminate the parameter t, we can rewrite the equations in terms of x and y only.
Rearranging the first equation, we have t = x + 1. Substituting this expression for t into the second equation, we get y = (x + 1)^2 - 1. Expanding and simplifying, we have y = x^2 + 2x.
The resulting equation, y = x^2 + 2x, represents a polynomial of degree 2, also known as a quadratic equation. The graph of this equation is a parabola. Thus, the given parametric equations describe a curve that is a polynomial of degree 2, which corresponds to option B.
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Olivia's science class is making slime from cornstarch and glue. Olivia is helping pass out
materials. She gives each student 4 ounces of cornstarch from a 5-pound bucket. If Olivia's
class has a total of 18 students, how many ounces of cornstarch will she have left?
Answer:she will have 4.44 ounces of cornstarch left
Step-by-step explanation: 1 pound=16 ounces 16*5=80 ounces 80 ounces equal 5 pounds then you divide 80 by 18 and your answer should come out as 4.44 ounces
Amount of cornstarch left is 8 ounce
Given that;
Each student get = 4 ounce of cornstarch
Total number of student = 18 students
Total amount of cornstarch = 5 pound
Find:
Amount of cornstarch left
Computation:
Amount of total cornstarch to student = Each student get × Total number of student
Amount of total cornstarch to student = 4 × 18
Amount of total cornstarch to student = 72 ounce
1 pound = 16 ounces
So,
Total amount of cornstarch = 5 × 16
Total amount of cornstarch = 80 ounces
Amount of cornstarch left = 80 - 72
Amount of cornstarch left = 8 ounce
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Find the equation of the line which passes through (4,1) and is parallel to the line with equation 2y=x+1
Parallel to the line:
\({\sf{2y = x + 1}}\)
\({\sf{y = \frac{x}{2} + \frac{1}{2 }}} \)
Hence Slope:
\({\sf{\large{\frac{1}{2}}}}\)
The slope of line of which equation we need is parallel to the line given. Therefore, it's slope also is (m):
\({\sf{\large{\frac{1}{2}}}} \)
Also, the line passes through the points (4, 1)
Therefore by the formula of
\({\sf{(y - y1) = m(x - x1)}}\)
we have:
\({\sf{(y - 1) = \frac{1}{2} (x - 4) }}\)
\({\sf{2y - 2 = x - 4}}\)
\({\sf{x - 4 - 2y + 2 = 0}}\)
\({\sf{\red{\boxed{\sf{x - 2y - 2 = 0}}}}}\)
Please help! 15 points!
Answer:
b
Step-by-step explanation:
the 80 degrees one and y are the same
Answer:
y=80 degrees
Step-by-step explanation:
The corresponding angles and opposite angles are equal to each other because of the parallel lines.
Steve gets paid $50 a week plus $5 for each items he sells.he wants to know how many items he needs to sell, X, to make at least $220 in one week.
I NEED HELP PLEASE TRYING TO PASS SCHOOL PLEASE ASAP NEED HELP
Answer:
The answer is...
Step-by-step explanation:
220 - 50 is 170. So know you know how much money he wants plus to his salary. 170/5 is 34.
x=34
Answer:
5x + 50 ≥ 220
5x ≥ 220 - 50
Step-by-step explanation:
The at least inequality sign for 220 is: ≥ 220
5x + 50 ≥ 220
5x ≥ 220 - 50
Identify which form is currently written in and then write each equation in standard form.Identify the y-intercept
y=-3x(x+2)
Answer:
Its in standard form I think. Y intercept is 0,0
Step-by-step explanation:
m∠QPSm, is a straight angle m∠RPS=6x+11 m∠QPR=7x+143 ;Find RPS
Answer:
23
Step-by-step explanation:
6x + 11 + 7x + 143 = 180
13x + 154 = 180
13x = 26
x = 2
m<RPS = 6(2) + 11 = 23
A closed half-plane is the solution of a linear inequality that comes close to the boundary line.
O True
O False
Answer:false
Step-by-step explanation:
Find the following ratios in their simplest form.Rectangle A: length = 6, width = 3Rectangle B: length = 6, width = 5What is the ratio of the Area of A to Area B
The ratio of rectangle A to rectangle B is 9 to 11
Explanation:The area of rectangle A is:
\(2(6+3)=2(9)=18\)The area of rectangle B is:
\(2(6+5)=2(11)=22\)The ratio of rectangle A to rectangle B is:
18/22
= 9/11
The area is 9 to 11
What is the measure of each exterior angle of a hexahectagon (600 sides)?
Answer:
0.6°
Step-by-step explanation:
The sum of exterior angles in a polygon is always equal to 360 degrees. For all equiangular polygons, the measure of one exterior angle is equal to 360 divided by the number of sides in the polygon.
360/600=0.6
Graph the image of U(2, -4) after a translation 8 units right.
Explanation:
Given point: (2, -4)
A movement to the right will be an addition to the x coordinate
y coordinate = -4
x coordinate = 2
8 units to the right implies an addition of 8 units to the x-coordiante
new x - coordinate = 2 + 8 = 10
The new coordinate (x, y) = (10, -4)
plotting on the graph:
The state of a spin 1/2 particle in Sx basis is defined as (Ψ) = c+l + x) + i/√7 l - x) a) Find the amplitude c+ assuming that it is a real number and the state vector is properly defined. b) Find the expectation value . c) Find the uncertainty △SX.
1) The amplitude c+ is c+l
2) The expectation value is 0
3) The uncertainty ΔSX is √(3/7) c+.
Now, we know that any wave function can be written as a linear combination of two spin states (up and down), which can be written as:
Ψ = c+ |+> + c- |->
where c+ and c- are complex constants, and |+> and |-> are the two orthogonal spin states such that Sx|+> = +1/2|+> and Sx|-> = -1/2|->.
Hence, we can write the given wave function as:Ψ = c+|+> + i/√7|->
Now, we know that the given wave function has been defined in Sx basis, and not in the basis of |+> and |->.
Therefore, we need to write |+> and |-> in terms of |l> and |r> (where |l> and |r> are two orthogonal spin states such that Sy|l> = i/2|l> and Sy|r> = -i/2|r>).
Now, |+> can be written as:|+> = 1/√2(|l> + |r>)
Similarly, |-> can be written as:|-> = 1/√2(|l> - |r>)
Therefore, the given wave function can be written as:Ψ = (c+/√2)(|l> + |r>) + i/(√7√2)(|l> - |r>)
Therefore, we can write:c+|l> + i/(√7)|r> = (c+/√2)|+> + i/(√7√2)|->
Comparing the coefficients of |+> and |-> on both sides of the above equation, we get:
c+/√2 = c+l/√2 + i/(√7√2)
Therefore, c+ = c+l
The amplitude c+ is a real number and is equal to c+l
The expectation value of the operator Sx is given by: = <Ψ|Sx|Ψ>
Now, Sx|l> = 1/2|r> and Sx|r> = -1/2|l>
Hence, = (c+l*) + (c+l) + (i/√7) - (i/√7)(c+l*)= -i/√7(c+l*) + i/√7(c+l)= 2i/√7 Im(c+)
As c+ is a real number, Im(c+) = 0
Therefore, = 0
The uncertainty ΔSX in the state |Ψ> is given by:
ΔSX = √( - 2)
where = <Ψ|Sx2|Ψ>and2 = (<Ψ|Sx|Ψ>)2
Now, Sx2|l> = 1/4|l> and Sx2|r> = 1/4|r>
Hence, = (c+l*) + (c+l) + (i/√7) - (i/√7)(c+l*)= 1/4(c+l* + c+l) + 1/4(c+l + c+l*) + i/(2√7)(c+l* - c+l) - i/(2√7)(c+l - c+l*)= = 1/4(c+l + c+l*)
Now,2 = (2i/√7)2= 4/7ΔSX = √( - 2)= √(1/4(c+l + c+l*) - 4/7)= √(3/14(c+l + c+l*))= √(3/14 * 2c+)= √(3/7) c+
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If the measure of arc XY plus the measure of arc YZX equals 180°, and the arcs do
not overlap, then the arcs form a
A. polygon
OB. semicircle
C. circle
D. square
Answer:
b) semicircle