3 years ago

H -7/J = k solve for J

Mathematics

1 answer:

Elina [12.6K]3 years ago

3 0

Answer:

see I need help for chemistry pls anyone here helps me I must submit before 10:30

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924,130 the 2 is the what spot

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10,000th spot

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A student answers a multiple-choice examination question that offers four possible answers. Suppose the probability that the stu

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Answer: 0.9730

Step-by-step explanation:

Let A be the event of the answer being correct and B be the event of the knew the answer.

Given: $P(A)=0.9$

$P(A^c)=0.1$

$P(B|A^{C})=0.25$

If it is given that the answer is correct , then the probability that he guess the answer $P(B|A)= 1$

By Bayes theorem , we have

$P(A|B)=\dfrac{P(B|A)P(A)}{P(B|A)P(A)+P(C|A^c)P(A^c)}$

$=\dfrac{(1)(0.9)}{(1))(0.9)+(0.25)(0.1)}\\\\=0.972972972973\approx0.9730$

Hence, the student correctly answers a question, the probability that the student really knew the correct answer is 0.9730.

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Question 3

IceJOKER [234]

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I would say d.im pretty sure tho

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5x² + 4x - 20 = 0<br> Solve this using the quadratic formula

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Here's the answer, using the quadratic formula

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(Giving Brainlyst)<br> Awnser this with the letter and fraction listed<br> EX. H- 2/3<br> Thanks!

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Answer:

C-7/8

R-8/9

P-61/66

L-11/18

I-3/4

A-7/12

O-47/55

H-29/40

S-28/33

T-4/5

M-11/12

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N-19/20

I swear to god if I don’t get brainliest I’m going to lose it I haven’t done this math in like four years and it kinda took a while.... but I hope it helped u ☺️☺️☺️❤️❤️❤️❤️

Step-by-step explanation:

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