The probability that one of Melissa's classmates will be a brunette or have blue eyes is 0.75.
Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
Here, given that,
60% are brunettes,
i.e. P(A)=0.6
20% have blue eyes,
i.e. P(B)=0.2
and 5% are brunettes that have blue eyes
i.e. P(A∪B)=0.05
So. P(A∩B)= P(A)+P(B)-P(A∪B)
=0.6+0.2-0.05
=0.75
Hence, the probability that one of Melissa's classmates will be a brunette or have blue eyes is 0.75.
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Answer:
17
Step-by-step explanation:
55
35
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Answer:
y - 5 = 3(x - 4)
General Formulas and Concepts:
Algebra I
Point-Slope Form: y - y₁ = m(x - x₁)
Step-by-step explanation:
Step 1: Define
Slope m = 3
Point (4, 5)
Step 2: Write equation
Point-Slope Form: y - 5 = 3(x - 4)
There are 9P3 = 504 ways the positions can be filled because the order in which the applicants are chosen doesn’t matter.
B.
There are 9C3 = 84 ways the positions can be filled because the order in which the applicants are chosen doesn’t matter.
C.
There are 9P3 = 504 ways the positions can be filled because the order in which the applicants are chosen matters.
D.
There are 9C3 = 84 ways the positions can be filled because the order in which the applicants are chosen matters.
The situation which is best described there is 9P3 = 504 ways the positions can be filled with order matters so option (C) will be correct.
Combination and permutation are two alternative strategies in mathematics to break up a collection of components into groups. This subset's components can be listed in any order when concatenated. The components of the subgroup are listed in a permutation in a particular order.
npr = factorial n/ factorial (n -r)
Given that,
Number of applicants = 9
Number of jobs = 3
Since the jobs are certain to the applicant so the order will matter.
Numberof ways to choose 3 people among 9 jobs
9p3 = factorial 9/factorial (9 -3)
9p3 = 9 × 8 × 7 × factorial 6/factorial 6
9p3 = 504
So there will be a total of 504 ways to feel the position such that order will also matter.
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Answer:
the correct answer is C
Step-by-step explanation:
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Answer:
1.3
Step-by-step explanation:
a number between 2 and 4 is 3
Answer:1.3
Step-by-step explanation:
Answer:
I think its b
Step-by-step explanation:
by moving it 5 units down, A' will become (-4,-4), and a 180° would make A'' (4,4). (I haven't taken geometry in a few years, so if im wrong, I'm sorry)
Answer:
B
Step-by-step explanation:
I took the test
Answer:
8.001 × 10^7
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 1010. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Answer:8.001 x 10^7
Step-by-step explanation:
80010000=8.001 x 10^7