Answer:
3:4
Step-by-step explanation:
8/6=4/3
12/9=4/3
16/12=4/3
The required probability of the coin landing tails up at least two times is 15/16.
Given that,
A fair coin is flipped seven times. what is the probability of the coin landing tails up at least two times is to be determined.
<h3>What is probability?</h3>
Probability can be defined as the ratio of favorable outcomes to the total number of events.
Here,
In the given question,
let's approach inverse operation,
The probability of all tails = 1 / 2^7 because there is only one way to flip these coins and get no heads.
The probability of getting 1 head = 7 /2^7
Adding both the probability = 8 / 2^7
Probability of the coin landing tails up at least two times = 1 - 8/2^7
= 1 - 8 / 128
= 120 / 128
= 15 / 16
Thus, the required probability of the coin landing tails up at least two times is 15/16.
Learn more about probability here:
brainly.com/question/14290572
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Answer:
c) <DBE and <EBC
Step-by-step explanation:
This is because when added together, both angles equal 90 degrees.
Complementary angles always equal 90 degrees.
7-3/-3-3
4/-6
this can be simplified to -2/3
(3) = -2/3(3) + b
Solve this
3 = -2 + b
5 = b
The answer is
y = -2/3x + 5
