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Softa [21]
2 years ago
7

Help please thanks ​

Mathematics
2 answers:
mamaluj [8]2 years ago
8 0

Answer:

(2) 8x + 28

Step-by-step explanation:

(2) 8x + 28

Anna11 [10]2 years ago
6 0

Answer:

2

Step-by-step explanation:

x(x+4)+6(x+4)

  • x^2+4x+6x+24
  • will get x^2+10x+24
  • then by splitting the middle term from the eqn above will get(x+4)(x+6) which is the same as (x+6)(x+4)
  • therefore 8x+28 is not equivalent
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Elodia [21]

Answer:

Correct option: (a) 0.1452

Step-by-step explanation:

The new test designed for detecting TB is being analysed.

Denote the events as follows:

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<em>X</em> = the test is positive.

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Compute the probability that a randomly selected person is tested negative but does not have the disease as follows:

P(X^{c}\cap D^{c})=P(X^{c}|D^{c})P(D^{c})\\=[1-P(X|D)]\times{1- P(D)]\\=0.99\times 0.12\\=0.1188

Compute the probability that a randomly selected person is tested negative  as follows:

P(X^{c})=P(X^{c}\cap D)+P(X^{c}\cap D^{c})

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