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3 years ago

How do you do this math problem 5.4t+14.6-10.1t=12.8-3.5t-0.6?

1 answer:

4 0

Just put the T's by adding and subtracting on one side and the numbers on the other side then divide the number with the magnitude of the final T you got

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Waiting times to receive food after placing an order at the local subway sandwich shop follow an exponential distribution with a

Debora [2.8K]

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3 years ago

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

3 years ago

What, is commercial Mathematics...

Delvig [45]

Answer:

I believe Commercial Mathematics is the kind of mathematics for the bussiness world. Where you calculate: There are 12 productions and three companies. Two companies already took 8 productions. How many productions will the last company take? Stuff like that.

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3 years ago

Read 2 more answers

A Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the results of

ANEK [815]

Answer:

Since Family's Financial Situation and Religion seem more of a Family Discussion, I would round 46% to 50%. Then 37% to 40%. Add 50% and 40% and you'll get 90%.

Step-by-step explanation:

And by percent confidence level, I hope you're talking about mine...I would say 99% confidence level....lol

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3 years ago

Tracy packages snack mix at a grocery store. She uses 1/5 of her supply of peanuts to make a trail mix and 3/5

Usimov [2.4K]

Answer:

she'll use in total 1/5 + 3/5 = 4/5 from her 16 pounds of peanuts so 4/5 * 16 = 12.8

Not entirely sure about my answer

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3 years ago