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Harlamova29_29 [7]
3 years ago
8

9f + 4 - 7f = 8 pls help

Mathematics
2 answers:
viva [34]3 years ago
6 0

answer is 2ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Yuri [45]3 years ago
4 0

Step-by-step explanation:

f = 2 is the correct answer

plz mark my answer as brainlist plzzzz vote me also and hope this helps you ...

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A certain tennis player makes a successful first serve 6969​% of the time. Suppose the tennis player serves 9090 times in a matc
Wewaii [24]

Answer:

a) 4.387

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Step-by-step explanation:

Give data:

p = 0.69

n = 90

a) a

E(X) = np = 62.1

SD(X) = \sqrt{(np(1-p))}

          =\sqrt{90\times 0.69(1- 0.69)}

          = 4.387

b)

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c.

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=    P(Z> \frac{((71.5-62.1)}{ 4.387})

= P(Z> 2.14 )      

= 1 - P(Z<2.14)              

= 1 - 0.983   (using table)          

= 0.017          

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3 years ago
AABC AEFG
Paraphin [41]

Answer:

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Step-by-step explanation:

espero que te sirva

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