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
alexandr1967 [171]
3 years ago
15

) A coin is tossed 13 times. a) How many different outcomes are possible? 2^8 b) How many different outcomes have exactly 4 head

s? 70 c) How many different outcomes have at least 2 heads ? 247 d) How many different outcomes have at most 4 heads? 163
Physics
1 answer:
Svetradugi [14.3K]3 years ago
3 0

Answer:

Explanation:

a) A coin has two sides, therefore the total outcome possible when a coin is tossed is 2 i.e Head (H) and Tail (T)

outcome of two coins will be 4 i.e 2^2

Outcome of three coins will be 8 i.e 2^3 and so on. Since its following a trend, the outcome when 'n' coins is tossed will be 2^n.

Using the general formula, the possible outcome when a coin is tossed 13 times will be "2^13"

b)

You might be interested in
A student jobs around a square park two times. Starting and ending at the gate to the park. The square jogging track is 40 meter
olga nikolaevna [1]
The answer would be the first one
3 0
3 years ago
Read 2 more answers
What's true about the elliptical path that the planets follow around the sun?
sattari [20]

Answer:

well, it is not a solid path and thats a teeny tiny fact

5 0
2 years ago
What are ways to improve the design of this experiment? Check all that apply
Serhud [2]

Answer:

B,D,E

Explanation:

I got you

B. Experiment with a wider range of materials.

D.Use a laboratory galvanometer to make precise measurements.

E. Test the strength of the electromagnet by varying the number of wire coils.

3 0
3 years ago
PLEASE HELP:
german

Answer:

3.39 mins.

10m/s multiplied by 6 equals to 60 seconds or 1 minute

7 0
2 years ago
PLEASE HELP!! At what temperature will silver have a resistivity that is four times the resistivity of tungsten at room temperat
Svetach [21]
Consider 20 deg.C. as room temperature.

From tables,
Silver has a resistivity of  1.6*10^-8 ohm-m at 20 deg.C, and it increases by 0.0038 ohm-m per deg.K increase.
Therefore if the temperature rise above 20 deg.C is T, then silver will have resistivity of
1.6*10^-8(1 + 0.0038T) ohm-m

At room temperature, the resistivity of tungsten (from tables) is 5.6*10^-8.

The resistivity of silver will be 4 times that of tungsten (at room temperature) when
1.6*10^-8(1 + 0.0038T) = 4*5.6*10^-8
1 + 0.0038T = 14
T = 13/.0038 = 3421 deg.K approx

Answer: 20 + 3421 = 3441 °C
4 0
3 years ago
Other questions:
  • Vittorio needs to clean the dusty mirror hanging on the wall beforehe can use it, but he would like to clean as little of the mi
    10·1 answer
  • Using information about natural laws, explain why some car crashes produce minor injuries and others produce catastrophic injuri
    15·1 answer
  • A box is pushed to the right with a force of 5N and at the same time it is pushed with a force of 3.6 N to the left. If the box
    8·1 answer
  • 4. Going down the freeway you notice your tachometer reads 4,000 RPM. a) Convert
    5·1 answer
  • We use electrical devices leopard deuce motion, light, and sound. Which aspect of energy explains why these devices are possible
    5·1 answer
  • A pesky rabbit has been feeding on Mrs. Cromwell’s prized flowers. In order to put an end to this she devised the simple trap be
    5·1 answer
  • A proton moves at a speed 1.4 × 10^7 m/s perpendicular to a magnetic field. The field causes the proton to travel in a circular
    15·1 answer
  • PLEASE HURRY AND HELP!!!!!!!!!
    6·1 answer
  • The same strength force was exerted in the same direction on both Object A and Object B. Why did Object A go faster than Object
    15·1 answer
  • Which trend would you choose to forecast the number of water damage claims in 2010?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!