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Vinil7 [7]
4 years ago
7

A groundskeeper needs grass seed to cover a circular field 290 feet in diameter

Mathematics
2 answers:
Vlada [557]4 years ago
6 0

Answer:

165

Step-by-step explanation:

First we need to find the area of the field, A = r^2 * pi

The radius is 290 / 2 = 145 feet

A = 145 * 145 * 3.14 = <u>66018.5</u> sqr feet

One bag covers 400 sqr feet

Divide the Area by 400 sqr feet to find number of bags needed.

66018.5 / 400 = <u>165</u>

He will need at least 165 bags to cover the field

Lilit [14]4 years ago
6 0

Answer:

4 bags

Step-by-step explanation:

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Find the area of the shaded portion in the equilateral triangle with sides 6.
VashaNatasha [74]
First, let's get the area of the entire triangle since we'll need it later. The area of a triangle is A=1/2*b*h

We can find the height with the Pythagorean theorem by splitting the triangle in half. 
3^2+b^2=6^2
9+b^2=36
b^2=27
b=√27

Then we can find the area:
A=1/2*6*√27
A=3√27   or   =9√3   or 15.59

Now we can find the area of each region in the triangle other than the shaded region because they are all portions of a circle.

Each region has an angle of 60 because this is an equilateral triangle. Therefore the area of each region other than the shaded region will be 1/6 the area of a circle with a radius of 3 because a full circle is 360 degrees.
A=pi*r^2/6
A=pi*9/6
A=4.71

So three of these regions would have an area of 14.14

We do the area of the triangle minus the area of these regions to get the area of the shaded region
15.59-14.14 = 1.45

Hope this helps!


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3 0
3 years ago
Solve 117 divided by 18. Show the answer as a fraction in lowest terms.
lisov135 [29]

Answer: 6 1/2

Step-by-step explanation

6 0
3 years ago
Osh wanted to buy a new shirt for a school dance. At the store, he couldn't decide between a purple plaid shirt and a scarlet st
Zepler [3.9K]

Answer: $24.50

Step-by-step explanation:

Since the shirts were on sale for $19.95 each, both shirts would cost:

= $19.95 × 2

= $39.90

We are further told that he saved a total of $9.10. This means the original cost for both shirts would be:

= $39.90 + $9.10

= $49.00

Then, the original price for each one would be:

= $49.00 / 2

= $24.50

4 0
3 years ago
plsss beggg i need this right now. deadline now at 6:00 pm and it's 5:03 here so please answer this :(​
hjlf

Answer:

ok ️ ‍♀️ the best thing about this is that you can get it from yourself but you don't try

3 0
3 years ago
Read 2 more answers
HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ i will be very happy if u do. FIRST PERSON TO GET IT CORRECT GETS BRAINLIEST
Vsevolod [243]

Answer:

Step-by-step explanation:

x -12 > 0

x > 12

if x > 12   x-12

if x = 12     0

if x < 12     12-x

8 0
3 years ago
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