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2 years ago

Hellpppp pllzzzzzz!!!!!!

Mathematics

1 answer:

DENIUS [597]2 years ago

5 0

Answer:

Can you scroll up a little bit ill edit my answer once you do

Step-by-step explanation:

You might be interested in

If A and B are independent events with P(A) = .5 and P(B) = .2, find the following:a) P(A U B)b) P(A^c ? B^c)c) P(A^c U B^c)**No

Effectus [21]

If A and B are independent, then $P(A\cap B)=P(A)P(B)$ .

$P(A\cup B)=P(A)+P(B)-P(A\cap B)=P(A)+P(B)-P(A)P(B)$

$P(A\cup B)=0.5+0.2-0.5\cdot0.2$

$\boxed{P(A\cup B)=0.6}$

b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:

$P(A^c\cap B^c)=P(A\cup B)^c=1-P(A\cup B)$

$P(A^c\cap B^c)=1-0.6$

$\boxed{P(A^c\cap B^c)=0.4}$

c. DeMorgan's law can be used here too:

$P(A^c\cup B^c)=P(A\cap B)^c=1-P(A\cap B)=1-P(A)P(B)$

$P(A^c\cup B^c)=1-0.5\cdot0.2$

$\boxed{P(A^c\cup B^c)=0.9}$

4 0

2 years ago

Write the translation

tatiyna

Translate 5 units to the right, and 2 units down

8 0

3 years ago

Witch is bigger -5 or -55

Georgia [21]

The answer to which is bigger is -5 because it is closer to zero

3 0

2 years ago

Read 2 more answers

Round 1.961 to the nearest tenth.

I am Lyosha [343]

Answer:

2.0

Step-by-step explanation:

To round 1.961 to the nearest tenth consider the hundredths’ value of 1.961, which is 6 and equal or more than 5. Therefore, the tenths value of 1.961 increases by 1 to 0.

1.961 rounded to the nearest tenth = 2.0

HOPE IT HELPS

6 0

2 years ago

Read 2 more answers

can anyone help me and show work for this Find the length of the third side. If necessary, write in simplest radical form.

tiny-mole [99]

Answer:

Step-by-step explanation:

Use Pythagorean theorem

Hypotenuse² = base² + altitude²

= 9² + 10²

= 81 + 100

= 181

hypotenuse = √181

5 0

2 years ago