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
ad-work [718]
3 years ago
8

four seniors and six juniors are competing for four places on a quiz bowl team. what is the approximate probability that all fou

r seniors will be chosen at random ?
Mathematics
2 answers:
12345 [234]3 years ago
6 0
The answer is 4 out of 10
uranmaximum [27]3 years ago
3 0

Answer:

The probability is:

                      4/10

Step-by-step explanation:

We are given:

four seniors and six juniors.

Number of seniors=4

Total number of people=10 ( since 6+4=10)

We are asked to fill four places on a quiz bowl team.

We are asked to find the probability that all four seniors will be chosen at random.

The probability is calculated as:

Ratio of the number of seniors to the total number of people.

            Hence, the probability is:

                                4/10

                       

You might be interested in
Find the area of the regular hexagon.
NeTakaya

Answer:

1) The area of the regular hexagon is approximately 11.256 unit²

2) The coordinates of the center is (2, 3)

3) The base length is approximately 2.08 units

4) The height of the hexagon is approximately 3.61 units

Step-by-step explanation:

1) The length, lₐ, of the apothem is given as follows;

l_a = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Therefore, for the apothem having coordinates, (2, 3), and (3, 1.5), we have;

l_a = \sqrt{\left (3-1.5  \right )^{2}+\left (2-3  \right )^{2}} = \sqrt{1.5^2 + (-1)^2} =\sqrt{3.25}

The length of half half of one side, S/2 = a × tan(30°) = √(3.25)/√3

The length of the base = 2 × √(3.25)/√3 ≈ 2.082 units

The perimeter, P = 6 × 2× √(3.25)/√3

The area, A = 1/2 × P × a = 1/2 × 6 × 2 × √(3.25)/√3 × √3.25 = (13·√3)/2

A = (13·√3)/2 unit²

The area of the regular hexagon, A =  (13·√3)/2 unit² ≈ 11.256 unit²

2) The coordinates of the center = (2, 3)

3) The base, 'b', length by Pythagorean theorem is given as follows;

b = √(a² + (S/2)²) = √((√(3.25))² + (√(3.25)/√3)²) = √(3.25 + 3.25/3) = √(13/3) = (√39)/3

The base length, b = (√39)/3 units ≈ 2.08 units

4) The height of the hexagon, h = 2 × The length of the apothem, lₐ

The length, lₐ, of the apothem is given as follows;

l_a = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Given the apothem coordinates, (2, 3), and (3, 1.5), we have;

l_a = \sqrt{\left (3-1.5  \right )^{2}+\left (2-3  \right )^{2}} = \sqrt{1.5^2 + (-1)^2} =\sqrt{3.25}

The height of the hexagon, h = 2 × √3.25 units ≈ 3.61 units.

3 0
3 years ago
Let f(x) = −4(0.25)^x. The graph of g(x) = f(x)+k is shown below. Identify the value of k. k=
Nataliya [291]
You can use photomath it is a great app to find ONLY equations!
8 0
3 years ago
Read 2 more answers
Answer please!! Thanks!
sergij07 [2.7K]

Answer: 9.6 units

<u>Step-by-step explanation:</u>

The formula for the length of a diagonal (d) for a rectangular prism given length (L), width (w), and height (h) is: d² = L² + w² +  h²

Given: L = 8, w = 2, h = 5

 d² = 8² + 2² + 5²

 d² = 64 + 4 + 25

 d² = 93

√d² = √93

 d = 9.6

8 0
3 years ago
What is the fraction of 1.024242424?
Agata [3.3K]
That mixed decimal is equal to 1,024,242,424/1,000,000,000 . (You may certainly reduce it to lower terms if you like.) / / / If you had said that the '24' repeats forever and never ends, then it would have been 338/330 . (You're free to simplify that one too.)
7 0
4 years ago
Lucia is wrapping packages that are in the shape of a triangular prism. The net of the prism is shown below: ( Help me answer th
solniwko [45]

Answer:

The total surface area of all 6 prisms is 6336 in^2.

Step-by-step explanation:

Let's find the surface area of ONE prism and then multiply that result by 6 to obtain the final answer.

One prism:

The area of the two 13 in by 26 in rectangular tabs is 2(13 in)(26 in), or 676 in^2 (subtotal);

The area of the two triangles of base 10 in and height 12 in is 2([1/2][10 in][12 in], or 120 in^2; and, finally,

The area of the 10 in by 26 in base is 260 in^2.

The total surface area of ONE prism is thus:

676 in^2 + 120 in^2 + 260 in^2, or 1056 in^2.

Now, because there are 6 of these prisms, multiply this last result by 6:

6(1056 in^2) = 6336 in^2.

The total surface area of all 6 prisms is 6336 in^2.

7 0
3 years ago
Other questions:
  • Simplify 270 ÷ 3[(4 - 3)3 - (-9)] - 53
    10·2 answers
  • Choose all the fractions that are equivalent to 4/8 .
    7·1 answer
  • Which polynomial is prime?
    12·1 answer
  • Which expression shows the quotient of two terms where one of the terms includes a coefficient of 7?
    5·1 answer
  • When making a book cover, Anwar adds an additional 20 sqaure inches to the surface area to allow for overlap. How many square in
    8·2 answers
  • forty percent of general hospital medical technologist are women. if there are 80 female medical technologist how many are male?
    10·2 answers
  • The volume of a box is 400in3. if the height is 10in and the length is 8in, what is the width of the box (volume=l•w•h)
    13·1 answer
  • Which of the following challenges is faced by both Japan and China?
    11·2 answers
  • You have $500, sale price is $435. How much change will you get
    15·2 answers
  • 3x+2y=5 What is x/y intercept
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!