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2 years ago

Helppppp and explain tooo pls and thankyouuu

Mathematics

1 answer:

Nina [5.8K]2 years ago

6 0

Answer:

--- ---

| -5 -2 |

| 4 12 |

--- ----

Step-by-step explanation:

A matrix can only be added to (or subtracted from) another matrix if the two matrices have the same dimensions . To add two matrices, just add the corresponding entries, and place this sum in the corresponding position in the matrix which results.

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Given P(A) = 0.46, P(B) = 0.35 and P(B|A) = 0.45, find the value of

WINSTONCH [101]

P(B|A) = P(A and B)/P(A)
So to find P(A and B) just multiply P(B|A) by P(A)

P(A and B) = 0.45*0.46 = 0.207

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2 years ago

Which value of x satisfies the equation 5(2x-9)+3=-7

vodka [1.7K]

Answer:

x = 7 / 2

Step-by-step explanation:

5(2x - 9) + 3 = -7 ---------- subtract 3 from both sides

5(2x - 9) + 3 - 3 = -7 - 3

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3 years ago

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Greeley [361]

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2 years ago

The data in the tables below were collected from first year students at a community college. The variable is "number of credit c

Oliga [24]

Solution :

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2. $\sum_z P(x) = 1$

Now consider,

$\sum_z P(x) = 1$

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2 years ago