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
Mademuasel [1]
4 years ago
15

Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times. Part A: Based on the results, what is the

experimental probability of the coin landing heads up? Show your work. (5 points) Part B: What is the theoretical probability of the coin landing heads up? Show your work. (5 points)
Mathematics
1 answer:
Orlov [11]4 years ago
6 0

Answer:

Part A.) 0.3 or 30%

Part B.) 0.5 or 50%

Step-by-step explanation:

She flipped the coin 30 times.

She flipped it 9 times for heads.

She flipped it 21 times for tails.

Part A.)

9/30

When you simplify that you get 3/10.

Which is 0.3 or a 30%

Part B.)

So there are only 2 sides of a coin.

Heads or tails, So its a 50 - 50

Hence

For One side it is 50/100

Which simplifies to 1/2

Or 0.5 which is 50%

You might be interested in
The number 12,300 is written ______. as a coefficient in standard form in scientific notation
dexar [7]
The number 12,300 is written 1.23 x 10⁴ as a scientific notation. It's coefficient is 1.23; base is 10⁴ in exponent form.

Scientific notation is a method developed by scientists to shorten the number that expresses a very large number. The scientific notation is based on powers of the base number 10.

Scientific notation has two numbers: coefficient and base. The coefficient must be greater than or equal to 1 and less than 10. The base is always 10 written in exponent form.

12,300 as coefficient in standard form in scientific notation.

1) put decimal after the first digit and drop the zeros. from 12,300 to 1.23 this is the coefficient.

2) to find the exponent, count the number of places from decimal to the end of the number.
1.2300 ; there are 4 places

So the scientific notation is 1.23 x 10⁴

6 0
3 years ago
Answer each question. What is 35% of 90x? What percent of 16x is 9x?
Ket [755]

Answer:

35% of 90x = 31.5

16x is 9x =

Step-by-step explanation:

35 /100 x 90 = 31.5

6 0
3 years ago
Read 2 more answers
What are the factor of pair of number?
Sedbober [7]
C…………………………x Mmmmmvvtvjvj I j I
8 0
3 years ago
What is the area of the figure?
kap26 [50]

Answer:

3400

Step-by-step explanation:

60 * 70 = 4200

70 - 10 - 20 = 40

20 * 40 = 800

4200 - 800 = 3400

5 0
3 years ago
Read 2 more answers
2. Janine walks on a circular track whose radius is 60 meters. If she walks a total of 100 meters, which of the
katrin2010 [14]

Answer:

0.53πrad

Explanations:

Given the radius of the circular track = 60metres

If she walks a total of 100 meters, the length of the arc of the circle = 100metres

To calculate the radian angle she rotates about the center of the track, we will use the formula for calculating the length of an arc

L = θ/360° × 2πr

100 = θ/360× 2π(60)

36000 = 120π × θ

36000 = 376.8θ

θ = 36000/376.8

θ = 95.5°

Since 180° = πrad

95.5° = x

x = 95.5π/180

x = 0.53π rad

6 0
3 years ago
Other questions:
  • Identify the type of sampling used​ (random, systematic,​ convenience, stratified, or cluster​ sampling) in the situation descri
    12·1 answer
  • the total weight of the medals won by the top medal-winning nations in the 2012 London Olympic Games.
    15·1 answer
  • Assume the least squares equation is ŷ = 10 + 20x. what does the value of 10 in the equation indicate?
    8·1 answer
  • Express the following rate as a rate.
    13·2 answers
  • A video game is on sale for 15% off the list price of $50. How much is saved by buying the game at the sale price?​
    8·1 answer
  • rogers father knows that dial it up sells data plans at $16 for 2 gigabytes and ring sells data plans at $9 for 1 gigabytes
    13·1 answer
  • You budget $200 for wooden planks for outdoor furniture. Cedar costs $2.50 per foot in Pine costs $1.75 per foot. X equal the nu
    12·2 answers
  • what is the distance between the points (4, 5) and (10, 13) on a coordinte plane a. 12 units b. 8 units c. 10 units d. 14 units
    7·1 answer
  • Which number has more factors, 30 or 36?
    15·1 answer
  • For some reason it is not 72
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!