find the shaded area

Find The Shaded Area

Answers

Answer 1

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

Rajesh says that the expression
-5(-x - 8) is equivalent to the expression
5x + 40. Is Rajesh correct?

Answers

Yes because if you were to distribute the -5 to (-x -8) you would get -5(-x) = 5x and -5(-8) = 40 which would give you 5x + 40

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

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

Because alternate exterior angles

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.

20 in.
I know because I had that lesson a few years ago

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

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

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

help plsssssssssssss

Answers

Answer:

0.15(40)=6

p=46

Step-by-step explanation:

P=46 is the answer correct me if I’m wrong

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 solutions

Our quadratic equation has a discriminant of 5, which is positive. Therefore, it has 2 real solutions.

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.

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

Step by step:

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!!

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

-1 = -3(3r - 8) - 7. what does r equal?

Answers

Tbh I don’t Ben know

Answer:

R=2

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.

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

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?

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

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

It’s D.

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

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

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:

find the slope of the line that passes through A(-3,2), B(5,-4​

Answers

Answer:

-3/4

Step-by-step explanation:

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)

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

Some please help, Does anyone know this answer!

Answers

Answer:

Acute

Step-by-step explanation:

The answer is acute

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!

(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.

7+10n is your answer to your question

Lee bought a light bulb online. It cost $1 plus 10% shipping and handling. What was the total cost?

Answers

1 dollar and 10 cents maybe

Round 472.529996081 to the nearest ten.

Answers

Answer:

470

Step-by-step explanation:

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

The attachment is the answer ty

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

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