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guapka [62]
3 years ago
11

Someone please answer this

Mathematics
2 answers:
Nastasia [14]3 years ago
7 0
The answer to your problem is: A.90
Sveta_85 [38]3 years ago
7 0
90 !!!!!!!19287/&-&’zoaowisjzns
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Please help its due soon
nikklg [1K]

Answer:

33, 97

Step-by-step explanation:

Start by setting up equations for the equivalent angles

3z + 2 + 79 = 180

3z = 99

z = 33

3z + 2 = y

3(33)+2 = y

97 = y

7 0
3 years ago
the probablilty that a person in the us has type b blood is 13%. four unrelated people are selected at random. find thr probabil
tatyana61 [14]

Answer:

.

c)"At least 1 O+" is equivalent to "not none O+" (forgive the incorrect English).

P(not none O+)+P(none O+)=1

P(not none O+)=1-P(none O+)

P(not none O+)=1-0.00491

P(at least 1 O+)=0.995

Step-by-step explanation:


3 0
3 years ago
An experiment consists of ranomly drawing three cards in succession without replacement from a standard deck of 52 cards. Let A
nadya68 [22]

Answer:

0.0045248 ;

0.1312218 ;

0.0001809 ;

0.1659729

Step-by-step explanation:

Number of Kings in deck = 4

Total number of cards in deck = 52

Picking without replacement :

A = King on first draw :

P(A) = 4 / 52

A = King on 2nd draw :

P(B) = 3 / 51

A = King on 3rd draw :

P(C) = 2 / 50

1.) P(A n B) = P(A) * P(B)

P(A n B) = 4/52 * 3/51 = 12 / 2652 = 0.0045248

2.) P(A u B) = P(A) + P(B) - P(AnB)

P(AuB) = 4/52 + 3/51 - 0.0045248 = 0.1312218

3.) P(A ∩ B ∩ C) = P(A) * P(B) * P(C)

P(A ∩ B ∩ C) = 4/52 * 3/51 * 2/50 = 0.0001809

4.) P(A U B U C) =

P(A) + P(B) + P(C) - P(AnB) - P(AnC) - P(BnC) - P(AnBnC)

P(AnC) = P(A) * P(C) = 4/52 * 2/50 = 0.0030769

P(BnC) = P(B) * P(C) = 3/51 * 2/50 = 0.0023529

4/52 + 3/51 + 2/50 - 0.0045248 - 0.0030769 - 0.0023529 + 0.0001809 = 0.1659729

6 0
3 years ago
A sociologist polled a random sample of people and asked them their age and annual income. The two-way frequency table below sho
myrzilka [38]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a
prisoha [69]

Answer Using the method of alligation. 40.0= 20/(10/20) qts of 50% solution to add to your 20 qts of 20% solution. 60.0= (20+40.0) qts of the final 40% solution.

5 0
3 years ago
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