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
Ostrovityanka [42]
3 years ago
6

A geologist has ten rock samples in a bag and is going to use eight for class. What is the probability that the first three pull

ed out will be hematite, bauxite, and coal in that order, assuming all three are among the rock samples?
Mathematics
1 answer:
Neporo4naja [7]3 years ago
5 0

Answer:

1/56 chance

Step-by-step explanation:

3/8 x 2/7 x 1/6 = 1/56

You might be interested in
The surface area of the figure below is 50.80m^2 True or False
solong [7]

For this case we have that by definition, the surface area of a cone is given by:

SA = \pi * r * s + \pi * r ^ 2

Where:

A: It's the radio

s: It's the slant

Substituting according to the data we have:

SA = \pi * 2.1 * 5.6 + \pi * (2.1) ^ 2\\SA = 36.9264 + 13.8474\\SA = 50.7738 \ m ^ 2

If we round:

SA = 50.8 \ m ^ 2

Answer:

True

8 0
3 years ago
Explain how to draw a bar a player named Eric who scored 20 points
Hunter-Best [27]
Well you jus t split a box into 4parts and each box is worth 5
7 0
3 years ago
Please help me solve this :3
oksano4ka [1.4K]

Answer:

1695.6 in3 ;)

Step-by-step explanation:

8 0
3 years ago
A pan of warm water (46∘ Celsius) was put in a refrigerator. After 15 minutes, the water's temperature was 27∘ C; 15 minutes aft
Cloud [144]

Answer:

The refrigerator was at around 13 ∘C

Step-by-step explanation:

Newton's Law of Cooling:

The rate of change of a body temperature  (amount of heat loss/time of loss) is directly proportional to the difference between its own temperature and the surroundings.

\frac{T(t2)-T(t1)}{t2-t1} = -h (T(t2) - Tenv)

T ⇒ temperature

t ⇒ time

Tenv ⇒refrigerator temperature

\frac{T(t2)-T(t1)}{t2-t1} ⇒ rate of change of he temperature

-h ⇒ constant of proportionality (negative because the temperature is decreasing inside the refrigerator)

We have 3 points:

time (minutes) - Temperature (∘ C)

0 (when the pan was put in the refrigerator) - 46

15 (after 15 minutes) - 27

30 (15 minutes after the first 15 minutes) - 19

\frac{27 - 46}{15 - 0} = -h (27 - Tenv)

\frac{19 - 27}{15 - 0} = -h (19 - Tenv)

Now we have a system of two equations and two variables

\frac{-19}{15} = -h (27 - Tenv)\\ \frac{19}{15} = h (27 - Tenv)\\ \frac{19}{15(27 - Tenv)} = h

\frac{19 - 27}{15 - 0} = -h (19 - Tenv)\\\frac{-8}{15} = -h (19 - Tenv)\\\frac{8}{15} = h (19 - Tenv)\\\frac{8}{15} = \frac{19}{15(27 - Tenv)} (19 - Tenv)\\8(27 - Tenv) = 19 (19 - Tenv)\\216 - 8 Tenv = 361 - 19 Tenv\\19 Tenv - 8 Tenv = 361 - 216\\11 Tenv = 145 \\Tenv = 145/ 11\\Tenv = 13. 18

The refrigerator was at around 13 ∘C

6 0
3 years ago
Y = 3x do this fast plz
mash [69]

Answer:

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Can you help plz I don’t have much time?!!!
    13·1 answer
  • Solve the following equation<br>sin¢-cos¢=0​
    11·1 answer
  • Find all solutions to
    5·1 answer
  • 14. Find the coordinates of the circumcenter for ∆DEF with coordinates D(1,3) E (8,3) and F(1,-5). Show your work.
    10·2 answers
  • Can some one help me with this please
    9·1 answer
  • Please someone should help me solve it 2x ÷ x^ - 4
    6·1 answer
  • La contaminación atmosférica es uno de los problemas ambientales que ocasiona el ser humano. La atmósfera en su estado puro está
    11·1 answer
  • Nine less than the product of 4 and a number is 23
    13·2 answers
  • If it takes 10gallons of gas to travel 130 miles. Plot a chart showing the distance covered by 25 gallons, 30 gallons and 32 gal
    8·1 answer
  • Relationships… are they proportional? !!!20 POINTS!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!