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3 years ago

Please help me asap!!!

Mathematics

1 answer:

Kobotan [32]3 years ago

4 0

Answer:

It would be 120

Step-by-step explanation:

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35/100 WRITE AS a decimal

GrogVix [38]

You take the 35/100 and move the 35 back 3 decimal places getting .35

6 0

4 years ago

Read 2 more answers

Each one of four people will request either Coke D Let X denote the number that request Coke, where the remainder request Sprite

34kurt

Answer:

a) E(x)=2.5 V(x)=1.59

b) E(R)=17 V(R)=6.36

c) The probability that, when the four make their orders, everyone gets what they ordered is P=0.66.

Step-by-step explanation:

a) The mean E(x) can be calculated as:

$E(x)=\sum^4_{i=0} p_ix_i\\\\E(x)=0.09*0+0.15*1+0.18*2+0.33*3+0.25*4\\\\E(x)=0.00+0.15+0.36+0.99+1.00\\\\E(x)=2.5$

The variance V(x) can be calculated as:

$V(x)=\sum^4_{i=0} p_i(x_i-\bar x)^2\\\\V(x)=0.09(0-2.5)^2+0.15(1-2.5)^2+0.18(2-2.5)^2+0.33(3-2.5)^2+0.25(3-2.5)^2\\\\V(x)=0.09*6.25+0.15*2.25+0.18*0.25+0.33*0.25+0.25*2.25\\\\V(x)=0.5625+0.3375+0.045+0.0825+0.5625\\\\V(x)=1.59$

b) The revenue can be expressed as:

$R=5*x+3*(4-x)$

Then, the expected value of R canbe expressed in function of x:

$E(R)=E(5x+3(4-x))=5E(x)+3(4-E(x))\\\\E(R)=5*2.5+3(4-2.5)=12.5+4.5=17$

The expected revenue is $17.

The variance of R is

$V(R)=V(5*x+3(4-x))=V(5x+12-3x)=V(2x+12)\\\\V(R)=V(2x)+V(12)=2^2V(x)+0=4*1.59\\\\V(R)=6.36$

c) In the case there are only 3 Cokes and 3 Sprites available, the only orders that can not be fullfilled are when X=0 (they order 4 Sprites) and X=4 (they order 4 Cokes).

The probability of these events is:

$P(x=0,x=4)=P(x=0)+P(x=4)=0.09+0.25=0.34$

So, the probability of everyoned getting what they ordered is:

$P=1-P(x=0,x=4)=1-0.34=0.66$

The probability that, when the four make their orders, everyone gets what they ordered is P=0.66.

3 0

4 years ago

Reflect (5,-4) over the y-axis. Then translate the result to the right 2 units. What are the coordinates of the final point?

lesya692 [45]

Answer:

(-3,-4)

Step-by-step explanation:

When reflecting across the y-axis, you will mirror the coordinates across the y-axis. This means (5,-4) will turn into (-5,-4) because mirroring it across the y-axis will only change the x coordinate. Then, to translate it to the right, you move to the right two times to give you (-3,-4). The y-coordinate will never change in this situation because you are only reflecting and moving left and right.

6 0

2 years ago

What is the inverse of the function below? f(x)=(1/3)^x

enyata [817]

Answer:

f⁻¹(x) = - ln x\ln 3

Step-by-step explanation:

To find the inverse, interchange the variables and solve for y.

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

8 0

3 years ago

A newspaper reports the following changes in the temperature of a city over 4 days:

suter [353]

Answer:Consider the parent equation of a every quadratic equation which is y=^2. which of the following points below meets the requirement by falling in the solution set? y≤x^2 a; y=10,000 b; y=-1.000 c; y=0,5 d; y=17/3

Step-by-step explanation:

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3 years ago