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vodka [1.7K]
3 years ago
7

51,52,53,54 plzzzz answers ASAP​

Mathematics
1 answer:
storchak [24]3 years ago
6 0

51)

b = 12

c = 5

d = 23

e = 90

f = 67

g = 13

52)

SAS: need BA = AD

AAS: need <B = <D

53)

ASA: need <A = <C

SAS: need DA = BC

54)

We are given that AB = DC (S) and AC =DB (S). We can say that BC = BC (S) by  reflexive property. We can say that ΔABC ≅ ΔDCB by SSS congruence Theorem.

Hope this helps! ;)

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Maksim231197 [3]

Answer:

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Step-by-step explanation:

The number of ways in which we can select k element from a group n elements is given by:

nCk=\frac{n!}{k!(n-k)!}

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On the other hand, if a student must answer at least 3 of the first 5 questions, we have the following cases:

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2. A student select 4 questions from the first 5 questions and 3 questions from the last 5 questions. It means that the number of choices is given by:

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3. A student select 5 questions from the first 5 questions and 2 questions from the last 5 questions. It means that the number of choices is given by:

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50 + 50 + 10 = 110

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