A rectangle is placed around a semicircle as shown below. The length of the rectangle is 3 cm. Find the area if shaded region. Use the value 3.14 for pie, And do not round your answer.
Answers
Answer:
0.9675sq.cm
Step-by-step explanation:
Find a related diagram attached
Area of the shaded region = Area of rectangle - area of semicircle
Area of rectangle = 3cm * 1.5cm
Area of rectangle = 4.5sq.cm
Given
diameter of the semicircle = 3cm
area = πd²/8
Area of the semicircle = 3.14(3)²/8
Area of the semicircle = 3.5325sq.cm
Area of the shaded region = 4.5 - 3.5325
Area of the shaded region = 0.9675sq.cm
Related Questions
How to find the missing dimensions of a prism
Answers
Answer:
Below.
Step-by-step explanation:
You need to know the volume or total surface area of the prism and 2 of the dimensions.
The formula for the volume = wlh where w = width , l = length and h = height.
So knowing say w = 4, l = 8 and V = 192 we have:
V = wlh
192 = 4 * 8 * h
h = 192/4*8
= 192/32
= 6.
The angle of elevation of the top of a tower from two points 121 m and 144 m away from the foot of the tower on th same side are found to be complementary. find the height of the tower.
Answers
Answer:
132 m
Step-by-step explanation:
Refer to attachment for figure.
In smaller triangle with angle theta , we have ,
⇒ tanθ = p/b
⇒ tanθ = h/121m
⇒ tanθ = h/121 m
In triangle with angle 90-∅
⇒ tan(90-θ) = p/b
⇒ cot θ = h/144 m
Multiplying these two ,
=> tanθ . cotθ = h/121 m × h/144m
=> 1 = h²/ (121 m × 144m )
=> h² = 121m × 144m
=> h= √ ( 121m × 144m)
=> h = 11m × 12m
=> h = 132 m
hii please help asap ill give brainliest thanks
Answers
Answer:nirvana
Step-by-step explanation:
A cylinder has a height of 11 inches. Its volume is 4,973.76 cubic inches. What is the radius of the cylinder?
Use ≈ 3.14 and round your answer to the nearest hundredth.
Answers
Answer:
12 inches
Step-by-step explanation:
Given data
Height= 11 inces
Volume= 4,973.76 cubic inches.
The expression for the volume of a cylinder is
V= πr^2h
substitute
4,973.76= 3.14*r^2*11
4,973.76= 34.54r^2
r^2= 4,973.76/ 34.54
r^2= 144
Square root both sides
r=√144
r=12 inches
Helppppppppp mmmmmmmeeeeeeeeeee
Answers
Answer:
56.25 π cm^2
Step-by-step explanation:
The circumference of a circle is given by C = 2 π r
15 π = 2 π r
Divide each side by π
15 = 2r
Divide by 2
15/2 = 2r/2
7.5 = r
We want to find tha area
A = π r^2
A = π (7.5)^2
A = π 56.25
A = 56.25 π
what is the minus 60 plus 40 =x plus y= x+9
Answers
60+40=x
y=x+9
MInus
x=100
y=109
Diffrence 9
Answer:
x = -20
y = -11
Need help take your time and thx
Answers
Answer:
if you factor it the answer is (x−5)(x−9)
In July 2008, a forest fire near the Park Yosemite National burned about 53 miles squares of forest. If a square mile equals 640 acres, about how many acres of forest were burned?
Answers
Answer:
33,920 acres of forest were burned.
Step-by-step explanation:
In this case, since you know that a square mile is equal to 640 acres, you can use a rule of three to find the acres that are equivalent to 53 square miles:
1 square mile → 640 acres
53 square miles → x
x=(53*640)/1
x=33,920 acres
According to this, the answer is that 33,920 acres of forest were burned.
When the y coordinate is positive, which way do you move on the coordinate plane?
Answers
Answer:
up
Step-by-step explanation:
You would move it up the y-axis
Ali, Ben and Cathy share an amount of money in the ratio 6 : 9 : 10 What fraction of the money does Ben get?
Answers
there are 6+9+10=25 equal parts, so Ben has 9/25 of the total.
URGENT! 50 POINTS
Visualization:
Suppose you revolve the plane region completely
about the given line to sweep out a solid of revolution. Describe
the solid and find its surface area in terms of π.
Question: the line x = 4
Answers
Answer:
Cylinder56πStep-by-step explanation:
This will result in cylinder with radius of 4 and height of 3.
Total surface area:
S = 2πr² + 2πrh = 2π(4² + 4*3) = 2π*28 = 56πA rectangle has a perimeter of 60 inches and a length of 22 inches. What is the width of the rectangle?
Answers
Answer:
8in
Step-by-step explanation:
I hope this helps. have a great dsy
Answer:
perimeter of a rectangle = 2( l+b )
perimeter = 60 inches
length = 22 inches
∴ width =
2 ( 22 + b ) = 60
22 + b = 60/2 = 30
22 + b = 30
b = 30 - 22 = 8 inches
∴ width = 8 inches
hope this answer helps you..
please mark as brainliest .. thank you!
The difference between two whole numbers is 99. The ratio of the two numbers is 2:5. What are the numbers?
Answers
Let the two whole numbers be 2x and 5x
The difference between 2x and 5x is 99. So,
5x-2x=99
3x=99
x=99/3
x=33
Therefore the two numbers are
5x=5*33=165
2x=2*33=66
Answer:
28:71
Step-by-step explanation:
99/7=14.14285714 (make sure to keep that in the calculator) that equals 1 part.
Therefore,
2×14.14...=28 (round up to nearest whole number)
5×14.14..=71 (round up to nearest whole number)
330 sixth graders were asked what their favorite sport is. If 20% said baseball how many students said baseball was their favorite sport
Answers
Answer:
66
Step-by-step explanation:
330/1000 by 20(...)=66
If beaver family one can cut down and 20" tree in 15 minutes and family two can cut down a tree 3 times the size in twice as long how long will it take the second beaver family to cut down a 20" tree
Answers
Answer:
10 minutes
Step-by-step explanation:
Beaver family 2 can cut down 60'' (20 x 3) tree in 30 (15 x 2) minutes
In one minute, beaver family 2 would cut down 60/30 = 2'' tree
time to cut down 20'' tree = 20/2 = 10 minutes
What is the equation of the line that passes through point Q and is parallel to line P?
Answers
Answer:
[tex]y=\frac{3}{2} x+1[/tex]
Step-by-step explanation:
What we need to know:
Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)Parallel lines always have the same slope (m) and different y-intercepts (b)1) Find the slope of line P
The slope of a line is equal to the [tex]\frac{rise}{run}[/tex], or the number of units the line moves up over the number of units the line moves to the right.
We can see that for line P, for every 2 units it moves to the right, it moves up 3 units.
Therefore, the slope of line P is [tex]\frac{3}{2}[/tex].
Knowing this, the equation of a line parallel to line P would have a slope of [tex]\frac{3}{2}[/tex] as well. Plug this into [tex]y=mx+b[/tex] as m:
[tex]y=\frac{3}{2} x+b[/tex]
2) Plug the given point Q into [tex]y=\frac{3}{2} x+b[/tex] to find the y-intercept (b)
[tex]y=\frac{3}{2} x+b[/tex]
Plug in point Q (2,4)
[tex]4=\frac{3}{2} (2)+b\\4=\frac{6}{2}+b\\4=3+b[/tex]
Subtract 3 from both sides
[tex]4-3=3+b-3\\1=b[/tex]
Therefore, the y-intercept of this line (b) is 1. Plug this back into our original equation:
[tex]y=\frac{3}{2} x+b[/tex]
[tex]y=\frac{3}{2} x+1[/tex]
I hope this helps!
A train leaves Richmond at 8:50AM and arrives at Washington DC at 11:35AM. How long does the trip take?
Answers
Answer:
2 hours 45 minutes.
Step-by-step explanation:
9 :00 - 8:50 = 10 minutes.
11:35 - 9.00 = 2 hours 35 minutes.
So length of the trip = 2 hours 45 minutes.
Answer:
Solution given:
the trip take =11:35-8:50=2 hours 45 minutes.
What is the solution for -3n = 12
Answers
Answer:
-4
Step-by-step explanation:
Answer:
n = -4
because
-3n=12
n=12/-3
n=-4
Which scatterplot shows a linear association?
Answers
Answer:
The first one I believe
Step-by-step explanation:
Answer:
The answer is A
Step-by-step explanation:
The scatter plots likes b, c and d are non linear associations. You can easily remember this just by looking how weird shaping they are for example d. You can always remember that a scatter plot like d is always nonlinear.
what is the simplified fractional equivalent of the terminating decimal 0.78?
Answers
Answer: 39/50
Step-by-step explanation: the answer is 39/50
Answer:
the answer is 39/50
Step-by-step explanation:
thank you
11. David's net worth is $45,765.78 and his assets have a value of
$62,784.14. If his assets increase by $2,784.89 and his liabilities
decrease by $3,742.36, what is his net worth?
$69,311.39
$44,808.31
His net worth will not change.
$52,293.03
CLEAR ALL
Answers
Answer:
the last one
Step-by-step explanation:
Answer:
D. $52293.03Step-by-step explanation:
Initial values
Net worth is $45765.78Assets $62784.14Liabilities:
$62784.14 - 45765.78 = $17018.36New values
Assets increase:
$62784.14 + $2784.89 = $65569.03Liabilities decrease:
$17018.36 - $3742.36 = $13276His net worth:
$65569.03 - $13276 = $52293.03Correct choice is D
what is the approximate circumference of a plate with a diameter of 12 inches? use 3.14 for π. Round to the nearest hundredth if necessary. (I really need this it's a test)
Answers
Answer:
37.7
Step-by-step explanation:
C=πd=π·12≈37.69911
rounded to the nearest hundredth 37.7.
hoped this helped.
pleasee helpp, thank you!!
Answers
Answer:
- 1/4
Step-by-step explanation:
i HOPE it helps!!!:)))
can someone please help me with 7 and 8...thank you <3
Answers
Answer:
7. <B = 129°8. <N = 85°Step-by-step explanation:
7. <A + <B = 180° [Since Co-interior angles]
=> 51° + <B = 180°
=> <B = 180° - 51°
=> <B = 129° (Ans)
8. <M + <N = 180° [Since Co-interior angles]
=> 95° + <N = 180°
=> <N = 180° - 95°
=> <N = 85° (Ans)
answer for brainliest and 10 points
Answers
Answer:
It is rational because 121 is a perfect square.
Which of the following is a true statement about functions?
O A. If A and B are matrices, then AB = BA.
B. If fand g are functions, then (f+g)(x) = (8+)(x).
C. If fand g are functions, then (fºg)() = (8 ©f(x).
O D. If fis a function, then Ma+h) =f(a)+fh).
Answers
HELPPPP PLEASE !!! I will give brainliest!!! THANK YOU
The parabola y = x2 is reflected across the x-axis and then scaled vertically by a factor of 5.
What is the equation of the new parabola?
y =
THANK YOu!!!!!
Answers
Answer:
Step-by-step explanation:
something like this Gigi,
y = -5([tex]x^{2}[/tex])
What fraction of the square is the green triangle?
Answers
Answer:
1/4
Step-by-step explanation:
Answer:
7/32
(btw thats the simplified version....look at the bottom for non-simplified if you didnt need it simplified)
Step-by-step explanation:
first count how many squares there are in total
its 8 by 8 so in total there are 64!
now there is the green triangle.....
count all the whole squares in it = 10
now count all the half squares (little triangles in it)= 8
Now if you put those little triangles together it would make one small unit square so it is 4 of all
10 + 4 = 14
So there is a Total of 14 unit squares in the green triangle
Fraction Time......
now lets take 14/64 and simplify it
that would be 7/32
We cant make it any more simplified now if you werent looking for the simplified version the your answser would be 14/64
I hope this was the answser you were looking for!! Mark Me Brainliest ;)Which of the equations below shows the relationship in the table?
Answers
Answer:
Im Sure its A
Step-by-step explanation:
Hi there! I have a math problem I need help on: A recipe calls for 1 teaspoon of cinnamon. You only have a 1/2 teaspoon measuring spoon. What fraction of a teaspoon of cinnamon, in halves, do you need? Please include the answer in your reply, and please don't go off-topic.
Answers
You need 2 half-teaspoons, since
1/2 tsp + 1/2 tsp = (1 + 1)/2 tsp = 2/2 tsp = 1 tsp