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Vikentia [17]
3 years ago
11

Thirty students took a calculus exam. Of the students who passed the exam, 8 students earned an A, 9 earned a B, 6 earned a C, a

nd 3 earned a D. If a single student is randomly chosen, what is the probability that the student did NOT pass the exam?
Provide the final answer as a fraction.
Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

Answer:

4/30 or 2/15

Step-by-step explanation:

total of student with either A,B,C, or D equals 26 which means 4 did not pass

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Alex17521 [72]

Answer:

x^{2} - x - 24 = 0

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Step-by-step explanation:

(x + 4)(x - 5) = 4

x(x - 5) = x^{2} - 5x

4(x - 5) = 4x - 20

x^{2} - 5x + 4x - 20 = 4

x^{2} - x - 20 = 4

x^{2} - x - 20 - 4 = 0

x^{2} - x - 24 = 0

a = 1

b = 1

c = -24

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Answer:

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Step-by-step explanation:

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The congruence theorem that can be used is: B. ASA

<h3>What is the ASA Congruence Theorem?</h3>

If we have two triangles that have two pairs of corresponding congruent angles (e.g. ∠LGH ≅ ∠HKJ and ∠LHG ≅ ∠KHJ), and a pair of corresponding congruent sides (e.g. GH ≅ HK), the triangles are said to be congruent triangles by the ASA congruence theorem.

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