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viva [34]
3 years ago
7

A garden is in the shape of a semicircle with a radius of 25 feet. Fencing is placed around this garden. How much fencing, in fe

et, is needed to go around this garden? Give me the most accurate answer and SHOW ALL YOUR WORK.
Mathematics
2 answers:
Likurg_2 [28]3 years ago
8 0
It’s going to be S.A = 981.7 ft ^2
Len [333]3 years ago
4 0

Answer:

S.A. = 981.7 ft^2

Step-by-step explanation:

radius = 25 ft

S.A. = 1/2πr2

S.A. = 1/2π(25)^2

S.A. = 981.7

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HHHHEEEEELLLLPPPPPP<br> PLEASE
dlinn [17]
The first one is correct
\frac{ {5}^{4} }{25}  =  \frac{ {5}^{4} }{ {5}^{2} }  =  {5}^{2}

8 0
3 years ago
If each data is increased by a constant K then find it's mean ?? answer fast pleaseeeeeeeeeee​
MArishka [77]

Answer:

The mean is also increased by the constant k.

Step-by-step explanation:

Suppose that we have the set of N elements

{x₁, x₂, x₃, ..., xₙ}

The mean of this set is:

M = (x₁ + x₂ + x₃ + ... + xₙ)/N

Now if we increase each element of our set by a constant K, then our new set is:

{ (x₁ + k), (x₂ + k), ..., (xₙ + k)}

The mean of this set is:

M' = ( (x₁ + k) + (x₂ + k) + ... + (xₙ + k))/N

M' = (x₁ + x₂ + ... + xₙ + N*k)/N

We can rewrite this as:

M' = (x₁ + x₂ + ... + xₙ)/N + (k*N)/N

and  (x₁ + x₂ + ... + xₙ)/N was the original mean, then:

M' = M + (k*N)/N

M' = M + k

Then if we increase all the elements by a constant k, the mean is also increased by the same constant k.

6 0
3 years ago
Evaluate the function<br>(x) = 11 – 3x<br>for -2).​
il63 [147K]

Answer:

<h2>17</h2>

Step-by-step explanation:

f(x) = 11 - 3x

f(-2) - <em>put x = -2 to the f(x):</em>

<em />

f(-2) = 11 - 3(-2) = 11 + 6 = 17

3 0
3 years ago
Given a vector with the initial point, (4,2) and the terminal point, (-3,1), find the vector in unit vector form.
Gwar [14]

Answer:

Wish i can help but i don't understand that

Step-by-step explanation:

7 0
3 years ago
A wooden plank is leaning against a wall. The bottom of the plank is 3 feet from the wall. Answer each of the following question
Nadusha1986 [10]

AB = ==> distance between the bottom of the plank; and the wall ===> 3 ft.

C ====> 49 degrees

For letter a, to solve for AC:

AC ==> HYPOTENUSE. The angle C is the OPPOSITE side of AB.

use sine :

sin A ===> opposite/hypotenuse

Solve:

sin 49 ====> 3/AC

AC ====> 3 / sin 49

AC ====> 3.96 ft.

For letter b, to solve for BC:

We are now given with the base (3 ft.); and; the hypotenuse (3.96 ft.) so we can use the Pythagorean theorem:

a^2 + b^2 = c^2

Let:

a ===> AB

b ===> BC

c ===> AC

(AB)^2 + (BC)^2 ===> (AC)^2

3^2 + (BC)^2 ===> (3.96)^2

(BC)^2 ===> (3.96)^2 - 3^2

(BC)^2 ===> 6.6816

sqrt (BC)^2 ===> sqrt 6.6816

Answer: BC ===> 2.58 ft.

Hope that helps!!!! : )

3 0
3 years ago
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