Answers
Answer:
88.85 Sq m
Step-by-step explanation:
For rectangle:
Length = 18 - 7.8 = 10.2 m
Width = 7.8 m
For both semicircular arcs:
Radius (r) = 7.8/2 = 3.9 m
Area of the shaded region = Area of rectangle + 2*Area of a semicircle - Area of circle with radius 3.5 m
[tex] = lb + 2 \times \frac{1}{2} \pi \times {(3.9)}^{2} - \pi \times {(3.5)}^{2} \\ \\ = 10.2 \times 7.8 + \pi \{{(3.9)}^{2} - (3.5)^{2} \} \\ \\ = 79.56 + \pi {(3.9 + 3.5)} (3.9 - 3.5) \\ \\ = 79.56 + 3.14 \times 7.4 \times 0.4 \\ \\ = 79.56 + 9.2944 \\ \\ = 88.8544 \\ \\ \approx 88.85 \: {m}^{2} [/tex]
Related Questions
Write the equation of the line that goes through (9,-4) and is perpendicular to the line
y = -3x – 8
Answers
Answer: y = (1/3)*x - 7
Step-by-step explanation:
When we have a line:
y = a*x + b
A perpendicular line to this one needs to have a slope s equal to:
s = -(1/a)
Then any line written as:
y = -(1/a)*x + c
is perpendicular to the lines of the form "y = a*x + b"
Then if we have the line:
y = -3*x - 8
The family of perpendicular lines to this one is:
y = -(1/-3)*x + c
y = (1/3)*x + c
where c can be any real number.
Now we also want that this line passes through the point (9, -4)
Then we need to replace x by 9, and y by -4
-4 = (1/3)*9 + c
Now we can solve this for c.
-4 = 9/3 + c
-4 = 3 + c
-4 - 3 = c
-7 = c
Then the line that is perpendicular to the line y = -3x – 8 and that goes through (9, -4) is:
y = (1/3)*x - 7
iTS been increased by 39%
Answers
Answer:
Step-by-step explanation:
Let 'x' be the original price.
x + 39% of x = 197.38
x + 0.39 x = 197.38
1.39x = 197.38
x = 197.38/ 1.39
x = 142
Answer:
£120.40
Step-by-step explanation:
76.9782=76.98
197.38-76.98=120.40
DUE SOON HELP PLEASE Choose the set of ordered pairs that would match a 180° clockwise rotation.
Answers
Answer:
The answer is C.
Step-by-step explanation:
WHAT??? HELP ME PLEASE///8TH GRADE MATH
Answers
Answer:
put angel sum property on it
Step-by-step explanation:
39 + 73 + x = 180
112 + x = 180
x = 180 - 112
x = 68
put degree sign over it
Hope its help you
-1 = -3(3r - 8) - 7. what does r equal?
Answers
Answer:
R=2
Step-by-step explanation:
hello please help me i’m stuck on this one
Answers
Answer:
The answer is number 4
Step-by-step explanation:
The mark equal to the subject with larger or smaller means that the figure should also shake either if there is no equal to smaller than or larger than that can not shake this number
If you need any explanation you can communicate with me
x > 2 is represented by the open circle at 2 going right and x is less than or equal to 2 is presented by the closed circle on -2 going left
If the m angle 5 is 63 , find the measure of angle 3.
Answers
Answer:
Hey this isn’t the answer, sorry
Step-by-step explanation:
I just need this answer to so let me know if you get the answer Thank you
Answer:answer is 117
Step-by-step explanation:
N/A
Please help on 19 / what is a nonlinear function answer soon and I give as many points as possible
Answers
Answer:
Step-by-step explanation:
B is a geometric progression. Not linear.
Rajesh says that the expression
-5(-x - 8) is equivalent to the expression
5x + 40. Is Rajesh correct?
Answers
Which of the following shows how the distributive property can be used to find -22(1.5)?
-22(-1) + -22(-0.5)
22(1) + 22( 0.5)
-22(1) + -22(0.5)
-22(0.75) + -22(-0.75)
Answers
Answer:
the last one
Step-by-step explanation:
ANSWER
C) -22(1) + -22(0.5)
D
The diagram shows triangle PQR.
Submit An
65°
P
PSR is a straight line.
size of angle PQS : size of angle SQR = 3:1
43°
S
R
Work out the size of angle PSQ.
+
Total marks: 4
Answers
Answer:
we need to diagram to answer this question for you, can you show us a picture of the diagram please?
What’s the area of this parallelogram
Answers
Answer:
20 in.
Step-by-step explanation:
To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply.
I know because I had that lesson a few years ago
please solve thank you thank you
Answers
Answer:
arc 1 = 100 degrees
angle 2 = 50 degrees
Step-by-step explanation:
arc 1 = 2(50) (arc = 2 x inscribed angle)
arc 1 = 100 degrees
angle 2 = 1/2 arc 1 = 50 degrees
Solve for v.
-8 = v + 4
Answers
Answer:
v=-12
Step-by-step explanation:
-8=v+4
-4 -4
-12=v
Answer:
v = -12
Step-by-step explanation:
We have the equation v + 4 = -8
Subtract 4 from both sides.
v + 4 - 4 = -8 - 4
+4 and -4 cancel one another out.
We get v = -12.
I would appreciate brainliest but if not that's ok!
A factory makes 450 pies every day.
The pies are chicken pies or steak pies.
Each day Milo takes a sample of 15 pies to check.
The proportion of the pies in his sample that are chicken is the same as the proportion
of the pies made that day that are chicken.
On Monday Milo calculated that he needed exactly 4 chicken pies in his sample.
Work out the total number of chicken pies that were made on Monday.
Answers
Each day it takes a sample of 15 pies - on Monday he needed 4:
4/15 = x/450 (450 being the total for each day)
4 x 450 = 1800
1800 divided by 15 = 120
120 is the amount of pies that were made on Monday
Hope this helps
Leave a like and brainliest!!
Ben's car depreciates in value by 15 % per year. Ben bought his car for £ 22000 . Work out how much his car will be worth after 6 years.
Answers
Answer:
£8297.29
Step-by-step explanation:
£22 000 x 0.85 to the power of 6=£8297.29
A quadratic equation has a
discriminant equal to 5. What
does this tell you about the
solution(s) to the equation?
Answers
Answer:
[tex]\boxed {\boxed {\sf 2 \ real \ solutions }}[/tex]
Step-by-step explanation:
The quadratic formula is:
[tex]{x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}}[/tex]
The discriminant of a quadratic is just the expression under the square root, or [tex]b^2-4ac[/tex]. This can tell us the number of solutions a quadratic has.
If the discriminant is:
Positive = 2 real solutions Equal to Zero = 1 real double/repeated solution Negative = 0 real solutions, but 2 imaginary solutionsOur quadratic equation has a discriminant of 5, which is positive. Therefore, it has 2 real solutions.
give reasons for your answer
Answers
Answer:
75
Step-by-step explanation:
they gave u 105 it is parallel to the line above it so u add them
105+105=210
then u subtract with 360 which forms a full angle
then u get 150
now u got the total of 2 angles so u divide them with2 to get 1 angle
then the answer is going to be 75
WOULD SOMEONE TELL ME PLEASE !!
Answers
Answer:
A and C
Step-by-step explanation:
alternate-exterior angles need to have one angle above the first line and the other angle below the second line and the angles have to be on different sides of the transversal
55% of the band play a bass instrument if there was 120 students in the band how many played bass instruments?
Answers
Answer:
66 students
Step-by-step explanation:
To find how many played bass instruments, multiply 120 by 0.55
120(0.55)
= 66
So, 66 students played bass instruments
Avery buys a sandwich for$7.69,a soft drink for $2.75,and a bag of chips for $1.25.How much money did he spend in all
Answers
Answer:
11.69
Step-by-step explanation:
7.69+2.75+1.25=11.69
find the slope of the line that passes through A(-3,2), B(5,-4
Answers
Answer:
-3/4
Step-by-step explanation:
help plsssssssssssss
Answers
Answer:
0.15(40)=6
p=46
Step-by-step explanation:
graph the solution on the number line x+8 ≥ 5
Answers
Answer:
For the inequality to be true, both factors must have the same sign or one factor must be 0. The zeroes occur at x = − 2 , x = 5 . Thus, our intervals will be ( − ∞ , − 2 ] , [ − 2 , 5 ] , [ 5 , ∞ ) Take a sample point from each. A sample point of − 3 for the first interval yields ( − 3 + 2 ) ( − 3 − 5 ) = ( − 1 ) ( − 8 ) = 8 , so the first interval satisfies the inequality. Choosing a sample point of x = 0 for the second interval, we receive ( 2 ) ( − 5 ) = − 10 , so this interval will not satisfy the equality. A sample point of x = 6 for the third interval gives us ( 8 ) ( 1 ) = 8 , so the third interval satisfies. Thus, the domain that satisfies the inequality is ( ∞ , − 2 ] & [ 5 , ∞ ) On the number line , you would draw and fill in a circle above -2, and draw an arrow from that point to the left. You would then draw and fill in a circle above 5, and provide a similar arrow to the right (i.e. towards positive infinity). We fill in these circles because the intervals are closed at these points, i.e. these points satisfy the inequality. If we instead had ( x + 2 ) ( x − 5 ) > 0 , the circles would be empty because those points would not satisfy.
1. The sum of two numbers is 2000. If 25% of the smaller number is one-sixth of the larger, find
the numbers.
Answers
Answer:
your answer is in this attachment
Step-by-step explanation:
hope it's helpful to you
have a great day ahead
Reena bought a mobile phone for 16,240 that included a GST of 12%. Find the price of the mobile phone before the GST was added.
Person who answers will be marked brainliest
Answers
Answer: 14500
Step-by-step explanation:
Let the price of the mobile phone before the GST was added be represented by x.
Therefore,
x + (12% × x) = 16240
x + 0.12x = 16240
1.12x = 16240
x = 16240/1.12
x = 14500
The price of the mobile phone before the GST was added was 14500
Some please help, Does anyone know this answer!
Answers
Answer:
Acute
Step-by-step explanation:
Lee bought a light bulb online. It cost $1 plus 10% shipping and handling. What was the total cost?
Answers
(7-6) + (-10n + 8)
I really need help on this
Answers
Answer:
7+10n
Step-by-step explanation:
solve both sides
-1 + -10n +8
solve again
move 8 over to it and add it to -1
7 +10n,
if I'm wrong someone please point it out.
Round 472.529996081 to the nearest ten.
Answers
Answer:
470
Step-by-step explanation:
