All categories

3 years ago

The diameter of a face off circle on an ice hock rink is 30 feet what is the area

2 answers:

5 0

The area of a circe is π*r²
you are given that diameter=30 feet and the radius is half the diameter
so the area is
π*15² = 706.86 ft²

AnnyKZ [126]3 years ago

5 0

Answer: the area of a circe is π*r²

you are given that diameter=30 feet and the radius is half the diameter

so the area is

π*15² = 706.86 ft²

Step-by-step explanation:

You might be interested in

................................................................

Alekssandra [29.7K]

Answer:

Answer is A.

Hope this helps.

3 0

3 years ago

Let X be the number of Heads in 10 fair coin tosses. (a) Find the conditional PMF of X, given that the first two tosses both lan

inn [45]

Answer:

Follows are the solution to the given point:

Step-by-step explanation:

For option A:

In the first point let z be the number of heads which is available on the first two trails of tosses so, the equation is:

$P(X=k | z=2 ) = \begin{pmatrix} 10-2\\ k-2\end{pmatrix} (\frac{1}{2})^{k-2} (\frac{1}{2})^{10-k}$

$= \begin{pmatrix} 8\\k-2\end{pmatrix} (\frac{1}{2})^{k-2} (\frac{1}{2})^{10-k} \ \ \ \ \ \ \ \ \ \ \\\\$

$k= 2,3..........10$ For option B:

$P(X=k | X \geq 2 ) = \sum^{10}_{i=2} \begin{pmatrix} 10-i\\ k-i\end{pmatrix} (\frac{1}{2})^{k-i} (\frac{1}{2})^{10-k}$

$k= 2,3, 4.........10$

8 0

3 years ago

Is it a function or not a function and if why is it either a function or not a function?

Butoxors [25]

Answer:

function

Step-by-step explanation:

8 0

3 years ago

What is the area of this quadrilateral?

ivann1987 [24]

42 square feet

12+30=42

3 0

3 years ago

Can you help me solve for x?

sergiy2304 [10]

Answer:

x = 12

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles

10x-10 = 60 +4x+2

Combine like terms

10x-10 = 62+4x

Subtract 4x from each side

10x-4x -10 = 62 +4x-4x

6x -10 = 62

Add 10 to each side

6x-10+10 = 62+10

6x= 72

Divide by 6

6x/6 = 72/6

x = 12

3 0

3 years ago