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ella [17]
3 years ago
13

The distance from the center of a round horse corral to the fence is 25 yards. What is the area of the horse corral?

Mathematics
1 answer:
Ksivusya [100]3 years ago
7 0

Answer:

625 pi (no approximation)or 1962.5(approximation)

Step-by-step explanation:

You do pi times radius squared.

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Plz I need some help with 11-12 . My teacher didn’t even explain it correctly so now I’m confused.
rusak2 [61]

Answer:

Step 1: Transpose everything to one side

12. x²+16x+15-10x+4=0

Step 2: Add the like terms

x² + (16x - 10x) + 15 + 4=0

x² + 6x + 19=0

Step 3: Use the quadratic formula to get the value(s) of x.

a=1 b=6 c=19

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6 0
2 years ago
Write as a single term: cos(2x) cos(x) + sin(2x) sin(x)
GREYUIT [131]

Answer: cos(x)

Step-by-step explanation:

We have  

sin ( x + y ) = sin(x)*cos(y) + cos(x)*sin(y)   (1)   and

cos ( x + y ) = cos(x)*cos(y) - sin(x)*sin(y)  (2)

From eq. (1)

if x = y

sin ( x + x ) = sin(x)*cos(x) + cos(x)*sin(x) ⇒ sin(2x) = 2sin(x)cos(x)

From eq. 2

If x = y

cos ( x + x ) = cos(x)*cos(x) - sin(x)*sin(x)  ⇒ cos²(x) - sin²(x)

cos (2x) = cos²(x) - sin²(x)

Hence:The expression:

cos(2x) cos(x) + sin(2x) sin(x)  (3)

Subtition of sin(2x) and cos(2x)  in eq. 3

[cos²(x)-sin²(x)]*cos(x) + [(2sen(x)cos(x)]*sin(x)

and operating

cos³(x) - sin²(x)cos(x) + 2sin²(x)cos(x) = cos³(x) + sin²(x)cos(x)

cos (x) [ cos²(x) + sin²(x) ]  = cos(x)

since cos²(x) + sin²(x) = 1

8 0
3 years ago
Help picture below problem 6
r-ruslan [8.4K]

Answer:

option B is the correct answer

Step-by-step explanation:

mark me brainliest

6 0
2 years ago
1. Amani is organizing her sticker collection.
11Alexandr11 [23.1K]
39 stickers in each album
3 0
3 years ago
Read 2 more answers
What is the x value when g(x)=1 PLS HELP
olga_2 [115]

Answer:

I believe the answer is x=1.

Step-by-step explanation:

I am a bit confused on what is wanted, but g(x) is the x value on the line g. so when g(x)=1, I think x=1 on the line g.

3 0
3 years ago
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