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2 years ago

What is the answer ?

Mathematics

2 answers:

klio [65]2 years ago

7 0

Answer:42

Step-by-step explanation:

Eva8 [605]2 years ago

4 0

42 should be the answer :) have a wonderful day

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A sales analyst listed the probabilities of profits and losses in dollars for a certain company. Find the mean for the probabili

kakasveta [241]

Answer: The mean for the probability distribution will be 69.25.

Explanation:

Since we given that

$At\ x_1= -500 ,P(x) = 0.076\\$

$At\ x_2= -250,P(x)= 0.191\\$

$At\ x_3=0, P(x)= 0.265\\$

$At\ x_4=250 , P(x)= 0.316\\$

$At\ x_5=500 , P(x)= 0.152\\$

As we know the formula for expectation of x i.e. known as mean for the probability distribution,

$E(x)=x\sum_{1}^{5} P(x)$

So, we apply this formula in our case,

$-500\times 0.076+(-250)\times 0.191+0\times 0.265+250\times 0.316+500\times 0.512=69.25$

$\mu = 69.25$

Hence, the mean for the probability distribution will be 69.25.

4 0

3 years ago

Read 2 more answers

Plz help..............

IrinaVladis [17]

The correct answer is -15 because the absolute value is 15 but there is a negative outside the absolute value lines making it negative :)

7 0

3 years ago

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A jacket that reguraly costs $40 is on sale for $32 what percent of decrease was in the price of the jacket

Scorpion4ik [409]

Use the formula (new price-old price) / old price

32-40=-8
-8/40=-20%

the percent difference is 20%

the negative means it was a markdown

4 0

3 years ago

Read 2 more answers

The roots of the equation (blank) are x=2+-i.

professor190 [17]

The answer is x^2-4x+5=0

8 0

3 years ago

Two cylinders. The smaller cylinder has height labeled as 6 cm. The larger cylinder has height labeled as 18 cm.

Yakvenalex [24]

Answer: first option.

Step-by-step explanation:

You know that the height of the smaller cylinder is 6 cm and the height of the larger cylinder is 18 cm, then you can find the volume ratio. This is:

$Volume\ ratio=(\frac{6cm}{18cm})^3\\\\Volume\ ratio=\frac{1}{27}$

Knowing that the volume of the larger cylinder is 40,635 cubic centimeters, you need to multiply it by the volume ratio to find the volume of the smaller cylinder.

Therefore:

$V_{smaller}=\frac{1}{27}(40,635\ cm^3)\\\\V_{smaller}=1,505\ cm^3$

8 0

3 years ago