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valina [46]
2 years ago
11

In a proposed business​ venture, a businesswoman estimates there is a ​65% chance she will make ​$57000 and a 35​% chance she wi

ll lose ​$67000. Determine her expected value.
Mathematics
1 answer:
vfiekz [6]2 years ago
3 0

Answer:

q

Step-by-step explanation:

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Two trains are 500 miles apart when they first enter a collision course. If, after two hours, the distance between them is 300 m
MrRissso [65]

Answer:

The faster train goes 60mph

Step-by-step explanation:

s= speed

s+20 is the faster train.

Then you are given:

200/s+s+20=2

200=2*(2s+20)

4s+40=200

4s=160

s=40 is the slower train

40+20= speed of faster one

s=60 ;)

6 0
3 years ago
Which expression is equivalent 121x^2-64y^2 ?
Lelu [443]
Would this be the correct answer? If not, can you further explain the question?(11x+8y)(11x-8y) 
6 0
3 years ago
The ratio of the number of games won to the number of games lost (no ties) by the Middle School Middies is
LenKa [72]

Answer:

27%

Step-by-step explanation:

The ratio means that for every 11 games won, 4 are lost, so the team has won 11<em>x</em> games, lost 4<em>x</em> games, and played 15<em>x</em> games for some positive integer <em>x</em>. The percentage of games lost is

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6 0
3 years ago
How many sides does a regular polygon have with each exterior angle measures up to 30
ch4aika [34]
The answer would be 6 exteriors.
5 0
3 years ago
What is the probability that a data value in a normal distribution is between a z-score of -1.32 and a z-score of -0.34 Round yo
Galina-37 [17]

We are asked to find the probability that a data value in a normal distribution is between a z-score of -1.32 and a z-score of -0.34.

The probability of a data score between two z-scores is given by formula P(a.

Using above formula, we will get:

P(-1.32

Now we will use normal distribution table to find probability corresponding to both z-scores as:

P(-1.32

P(-1.32

Now we will convert 0.27351 into percentage as:

0.27351\times 100\%=27.351\%

Upon rounding to nearest tenth of percent, we will get:

27.351\%\approx 27.4\%

Therefore, our required probability is 27.4% and option C is the correct choice.

5 0
3 years ago
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