3 years ago

Which expression is equivalent to 3x + 5y + x - 2y?

1 answer:

8 0

D. 4x +7y

3x+5y+x-2y

x is also another way to say that there is 1x

4x + x (or 1x)= 5x

3y and 7y have the same variable

7y+3y=10y

Hence number D

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A Nevada roulette wheel had 38 pockets, labeled as 0 00 1 2 3 ... 35 36. One bet is single number. If you bet $1 on a number (an

slavikrds [6]

Answer:

-0.0526

Step-by-step explanation:

Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).

Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is $\frac{1}{38}$ and probability of failure is $\frac{37}{38}$ . For a win, X takes value 35 and for a loss X takes value -1. So the model is,

$P(X=35) = \frac{1}{38}$

$P(X=-1) = \frac{37}{38}$

$P(X=i) = 0 \;if\; i \neq 38, i\neq -1$

The mean for one bet is $E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526$

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Jackson can lay 6000 ft² of tile in 3 h. What is Jackson’s tile-laying rate?

pickupchik [31]

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AveGali [126]

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4.30-2=2:30

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Pls answer fast IMPORTANT HURRY!!!! Why did the chicken cross the road

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To get to the other side :o

Step-by-step explanation:

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