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3 years ago

9

(X+3) (2x-7)=0 please help meee quickly!!!!!!!

2 answers:

MAXImum [283]3 years ago

7 0

Answer:

x = -3, 3.5

Step-by-step explanation:

(x +3) (2x-7) = 0

Solving for x, set each factor to 0

x + 3 = 0, x = -3

2x - 7 = 0, x = 7/2 or 3.5

morpeh [17]3 years ago

6 0

Answer:

=-3 ,-3.5

Step-by-step explanation:

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Answer:

(a) The value of P (M | V) is 0.30.

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Step-by-step explanation:

It is provided that,

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<em>M</em> = a student has a Master card

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The probability of a student having visa card and a master card is:

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The conditional probability of an event, say A, given that another event, say B, has already occurred is,

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(a)

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Thus, the value of P (M | V) is 0.30.

(b)

Compute the probability that a student does not have a master card given that he/she has a visa card also, i.e. $P (M^{c} | V)$ as follows:

$P (M^{c} | V)=1-P(M|V)=1-0.30=0.70$

Thus, the value of $P (M^{c} | V)$ is 0.70.

(c)

Compute the probability that a student has a visa card given that he/she has a master card also, i.e. P (V | M) as follows:

$P(V|M)=\frac{P(V\cap M)}{P(M)} =\frac{0.12}{0.32}=0.375$

Thus, the value of P (V | M) is 0.375.

(d)

Compute the probability that a student does not have a visa card given that he/she has a master card also, i.e. $P(V^{c}|M)$ as follows:

$P(V^{c}|M)=1-P(V|M)=1-0.375=0.625$

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Step-by-step explanation:

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