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Natasha_Volkova [10]
3 years ago
12

Please some one help me with this i don't know how to do these three problems

Mathematics
1 answer:
AysviL [449]3 years ago
3 0
1)can't see the illustration 
2) -2+10=8  and-4+12=8
3) 123-180= -57  185-255=-70
Bart has -57 points and Sam has -70 points  which means that  Bart won the game because after adding up the sums  their games Bart has a total of -57 and Sam has a total of -70  and -57 is higher then -70.
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Suppose that start-up companies in the area of biotechnology have probability 0.2 of becoming profitable, and that those in the
schepotkina [342]

Answer:

a) 0.03

b) 0.68

c) 0.32

Step-by-step explanation:

We are given the following in the question:

B: companies in the area of biotechnology

I: companies in the area of information technology

P(B) = 0.2

P(I) = 0.15

The two events are given to be independent.

a) P(both companies become profitable)

P(B\cap I) = P(B)\times P(I)\\= 0.2\times 0.15 = 0.03

0.03 is the probability that both companies become profitable

b) P(neither company becomes profitable)

P(B'\cap I')\\=P(B')\times P(I')\\=(1-P(B))(1-P(I))\\=(1-0.2)(1-0.15)\\=0.68

0.68 is the probability that neither company becomes profitable.

c) P(at least one of the two companies become profitable)

P(B\cup I) = P(B) + P(I) - P(B\cap I)\\= 0.2 + 0.15 - 0.03\\=0.32

0.32 is the probability that at least one of the two companies become profitable

4 0
3 years ago
Simplify the product using the distributive property.
andrew11 [14]

Answer:

16h^2-4h-42

Step-by-step explanation:

4h times 4h is 16h^2

4h times -7 is -28h

4h times 6 is 24h

6 times -7 is -42

Combine like terms to get 16h^2-4h-42

7 0
3 years ago
Of the 50 students in an undergraduate statistics class, 60% send email and/or text messages during any given lecture. They have
sasho [114]

Answer:

0.3 or 30%

Step-by-step explanation:

Since no innocent student will ever be caught, the probability that a student sends an email and/or text message during a lecture AND gets caught is given by the product of the probability of a student sending a message (60%) by the probability of the professor catching them (50%) :

P = 0.5*0.6 = 0.3

The probability is 0.3 or 30%.

7 0
3 years ago
CAN SOMEONE HELP PLZZZ PLZZ PLZZZZZ ILL GIVE EVERYTHING
Studentka2010 [4]

Answer:

what do u need help with?

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Draw a model to represent the following problem 42 divide 7 Answer
hodyreva [135]

We have to draw the model for 42 divide 7 . In order to draw the model we use below steps.

  • Draw 7 boxes to represent 7 groups.
  • Assume 42 as the number which represents the total of these 7 groups.
  • Put a question mark at the first box.

Attached is the model to represents 42 divide 7 .

In the question mark we should put 6. Hence, when we add 6 to 7 times that will be equal to 42.


5 0
3 years ago
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