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MA_775_DIABLO [31]
3 years ago
13

A circular Garden has an area of approximately 153.86 square feet Iris wants to put a fence around the garden how much fencing d

oes she need to enclose the garden explain how to apply the formulas for area and circumference of a circle to determine the length of fencing use 3.14 for pi
Mathematics
1 answer:
Andreyy893 years ago
8 0
First, you need to find the diameter step by step
Step 1) divide the area by pi

153.86/3.14 = 4

Step 2) get the square root of 49

The square root of 49 is 7, so the radius is 7

Now, find circumference using c = \pi d

c=7(3.14)

3.14(7) = 21.98

21.98 square feet is the circumference (fencing)

I hope this helped
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Find the equation of the line perpendicular to y = 3x - 6 that runs through the point (-1, -3).
Mkey [24]

Answer:

Step-by-step explanation:

I'll get you the answer. You pick it from what you are given.

The slope of the perpendicular is m1 * m2 = - 1

m1 = 3

m2 = -1 / m1

m2 = -1 / 3

So far what you have is

y = (-1/3) x + b

Use the point go get b

x = -1

y = - 3

y = (-1/3) *x + b

-3 = (-1/3)*-1 + b

-3 = 1/3 + b  

-3 - 1/3 = b

b = -3.33333  or

b = -3 1/3

b = -10/3              

So the answer is

y = (- 1/3) x - 10/3            or

y = (-1 / 3)x - 3.3333       or

y = (-1/3 )x  - (3 1/3)

6 0
3 years ago
The area of a rectangle is 36 square inches. Its length is 9 inches. What is its width?
yuradex [85]

Answer:

The dimensions of the rectangle would be 9 and 4

Step-by-step explanation:

Since we are solving for area we only need to find two sides.

8 0
3 years ago
Read 2 more answers
A decorative window is made up of a rectangle with semicircles at either end. The ratio of AD to AB is 3:2 and AB is 30 inches.
scZoUnD [109]

Answer: The required ratio will be

84:1034

Step-by-step explanation:

Since we have given that

Ratio of AD to AB is 3:2

Length of AB = 30 inches

So, it becomes

2x=30\\\\x=\frac{30}{2}=15\ inches

So, Length of AD becomes

3x=3\times 15=45\ inches

Now, at either end , there is a semicircle.

Radius of semicircle along AB is given by

\frac{30}{2}=15\ inches

So, Area of semicircle along AB and CD is given by

2\times \frac{\pi r^2}{2}\\\\=\frac{22}{7}\times 15\times 15\\\\=\frac{4950}{7}\ in^2

Radius of semicircle along AD is given by

\frac{45}{2}=22.5\ inches

Area of semicircle along AD and BC is given by

2\times \frac{1}{2}\pi r^2\\\\=\frac{22}{7}\times \frac{45}{2}\times \frac{45}{2}\\\\=\frac{445500}{28}\ in^2

And the combined area of the semicircles is given by

\frac{4950}{7}+\frac{445500}{28}\\\\=\frac{465300}{28}\ in^2

Area of rectangle is given by

Length\times width\\\\=AD\times AB\\\\=45\times 30\\\\=1350\ in^2

Hence, Ratio of the area of the rectangle to the combined area of the semicircles is given by

1350:\frac{465300}{28}\\\\=1350\times 28:465300\\\\=37800:465300\\\\=84:1034

Hence, the required ratio will be

84:1034

8 0
3 years ago
The purchase price of a camcorder is $850. What is the total price if the sales tax rate is 6.5%?
damaskus [11]

Answer:

$905.25

Step-by-step explanation:

6.5% of $850 is $55.25. You add $55.25 to $850 to get the total price.

5 0
2 years ago
Read 2 more answers
A grocery store sells a bag of 5 avocados for $4. What is the unit cost of each avocado?
weeeeeb [17]
5x4 = 20
So the avocados would be $20
6 0
2 years ago
Read 2 more answers
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