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
vitfil [10]
3 years ago
10

A bowl contains 7 red balls and 10 blue balls. A woman selects 4 balls at random from the bowl. How many different selections ar

e possible if at least 3 balls must be blue?
Physics
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

1050 possible selections

Explanation:

<em>Number of red balls = 7</em>

<em>Number of blue balls = 10</em>

<em>Let blue balls be B and red balls be R</em>

<em>four balls are to be selected. At least three must be blue.</em>

the first combination is 4blue 0red

second combination is 3blue 1red

(10C4*7C0 + 10C3*7C1)

210 *1 +120 *7

210+840

=1050 possibilities

You might be interested in
If a plane is flying level at 910 km/h and the banking angle is not to exceed 50 ∘, what's the minimum curvature radius for the
hoa [83]

Answer:

5.5 km

Explanation:

First, we convert the distance from km/h to m/s

910 * 1000/3600

= 252.78 m/s

Now, we use the formula v²/r = gtanθ to get our needed radius

making r the subject of the formula, we have

r = v²/gtanθ, where

r = radius of curvature needed

g = acceleration due to gravity

θ = angle of banking

r = 252.78² / (9.8 * tan 50)

r = 63897.73 / (9.8 * 1.19)

r = 63897.73 / 11.662

r = 5479 m or 5.5 km

Thus, we conclude that the minimum curvature radius needed for the turn is 5.5 km

4 0
3 years ago
With manual transmission, use your right foot for the brake and accelerator and left foot for the clutch true or false
GaryK [48]

This is true!

Hope this helps!

4 0
3 years ago
Read 2 more answers
Three materials, put them in order of what
Grace [21]

Answer:

it's a

Explanation:

hope this helps!!!!!!

4 0
3 years ago
If magnet A can pick up 3 steel paper clips and magnet B can pick up 11 gold paper clips and which one is stronger?
Nutka1998 [239]
The answer to your question is b
8 0
3 years ago
Choose all the answers that apply. The continents _____. were once connected have always been in the same location are slowly dr
svetoff [14.1K]

Answer: the correct options are

- were once connected

- are slowly drifting

Explanation: The continent is the main land mass of the earth which includes the following:

- Asia, Africa, Europe, Australia, North America, South America, and Antarctica.

These continents were once connected forming a supercontinent called PANGAEA

during the late palaeozoic and early mesozoic eras, millions of years ago.

Alfred Wegener, who is a German meteorologist, in 1912 came up with a hypothesis that the continents are slowly drifting the earth. He called the movement continental drift.

The continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics. In recent studies, through the science of plate tectonics, we where able to understand the mechanism through which continental drift occurs. The mechanism includes:

- processes of seafloor spreading,

- rift valley formation, and

- subduction (where heavier tectonic plates sink beneath lighter ones).

7 0
3 years ago
Other questions:
  • What does the negative sign in F = –kx mean?
    11·1 answer
  • Given 4.8 moles of a gas at 37 degrees Celsius and at 792 torr, what is the volume of the gas? (The ideal gas constant is 0.0821
    11·1 answer
  • What forces hold the planets and the moon together?
    6·2 answers
  • Lorenzo is making a prediction. “I learned that nonmetals increase in reactivity when moving from left to right. So I predict th
    12·2 answers
  • Ask Your Teacher The same force that gives the standard 1 kg mass an acceleration of 1.00 m/s2 acts first on body A, producing a
    5·1 answer
  • Explain what the ionsphere is and how it interacts with some radio waves
    11·1 answer
  • The change of state from a gas to a liquid?
    6·2 answers
  • Red light strikes a metal surface and electrons are ejected. If violet light is now used with a 10% greater intensity, what will
    5·1 answer
  • Elements are composed of atoms of at least two different types.<br> True<br> False
    8·1 answer
  • El movimiento de los cuerpos y la formación de imágenes son ejemplos de esta clase de fenómeno ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!