1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mekhanik [1.2K]
3 years ago
6

A book claims that more hockey players are born in January through March than in October through December. The following data sh

ow the number of players selected in a draft of new players for a hockey league according to their birth month. Is there evidence to suggest that hockey​ players' birthdays are not uniformly distributed throughout the​ year?
Mathematics
1 answer:
Ghella [55]3 years ago
8 0

i hate hockey.......

You might be interested in
How do you simplify this
Dafna11 [192]

Top:

x / (x + 1) - 1 / x

= [x^2 - (x +1)] / x(x+1)

= (x^2 - x - 1 ) / x (x+1)

Bottom:

x / (x + 1) + 1 / x

= [x^2 + (x +1)] / x(x+1)

= (x^2 + x + 1 ) / x (x+1)

Now you have:

(x^2 - x - 1 ) / x (x+1)

----------------------------

(x^2 + x + 1 ) / x (x+1)

= (x^2 - x - 1 ) / x (x+1) * x (x+1) / (x^2 + x + 1 )

= (x^2 - x - 1 ) /(x^2 + x + 1 )

Answer:

x^2 - x - 1

---------------------

x^2 + x + 1

7 0
3 years ago
The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by: P(x)=-12x^2 +12
Minchanka [31]

Given:

The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by:

P(x)=-12x^2+120x

To find:

The current that will produce the maximum power.

Solution:

We have,

P(x)=-12x^2+120x

Here, leading coefficient is negative. So, it is a downward parabola.

Vertex of a downward parabola is the point of maxima.

If a parabola is f(x)=ax^2+bx+c, then

Vertex=\left(\dfrac{-b}{2a},f(\dfrac{-b}{2a})\right)

In the given function, a=-12 and b=120. So,

-\dfrac{b}{2a}=-\dfrac{120}{2(-12)}

-\dfrac{b}{2a}=-\dfrac{120}{-24}

-\dfrac{b}{2a}=5

Putting x=5 in the given function, we get

P(5)=-12(5)^2+120(5)

P(5)=-12(25)+600

P(5)=-300+600

P(5)=300

Therefore, 5 watt current will produce the maximum power of 300 amperes.

6 0
3 years ago
Nanna's Italian Restaurant has collected data about customer sauce orders. It calculated that P(marinara) = 0.64, P(alfredo) = 0
abruzzese [7]
To answer this question, apply this formula <span>P(m and a) = P(m) + P(a) - P(m or a). Where m stands for marinara and a stands for alfredo.

</span><span>P(m and a) = P(m) + P(a) - P(m or a)
</span><span>P(m and a) = 0.64 + 0.56 - 0.89
</span><span>P(m and a) = 0.31</span>
5 0
3 years ago
The graph of a proportional relationship passes through (5, 15)(5, 15) and (1, y)(1, y). Find yyThe graph of a proportional rela
nexus9112 [7]
Im sorry this question is confusing
5 0
3 years ago
Factor the expression completely
Phantasy [73]
Factor : 8y - 36

Go through all of the answer choices & see which one is correct.

a) -4 (2y + 9)

You don't even have to fully simplify this, just by looking at the -4, you already know that this is incorrect because you need to have a positive 8. So, A is incorrect. 

b) 8 (y - 4)

Simplify.

8y - 32

Incorrect because it is not equal to the original equation.

c) 2 (4y - 18)

Simplify.

8y - 36

Correct answer because it is equal to the original equation.

d) 4(2y - 9)

Simplify.

8y - 36

D is also correct.

So, your answer is : (C) and (D) are your answers. 

~Hope I helped!~
5 0
3 years ago
Read 2 more answers
Other questions:
  • Percy is plotting points on a graph. The ratio of y -value to x -value is 2 to 3 for each point. What will be the x -value of a
    11·2 answers
  • 11-15 pls help thanks
    7·1 answer
  • What is the product?
    15·2 answers
  • BIU A
    9·1 answer
  • Please help I am really confused with this​
    7·2 answers
  • If m is 2 times n minus 7 and y is the square of m, then write y as a function of n.
    14·1 answer
  • Rachel multiplied each side of x ≥ 2 by 3. She wrote the result as 3x ≤ 6. Explain the error Rachel made.
    12·1 answer
  • Please help with this!!!!!!!! ASAP
    15·2 answers
  • Janelle subtracts -4 from a number. The result is -2. What is the number?0
    15·2 answers
  • Divide 12.73 by 8 and round off correct to two decimal places​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!