3 years ago

What is the simplified expression for

Mathematics

2 answers:

qwelly [4]3 years ago

7 0

-23a+5x-7+34y(x-y5)=3x+66

Arturiano [62]3 years ago

6 0

A^2-ab+3ab^2-b^2 is the correct answer according to Photomath.

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Answer:

The expression would give the probability that one marble is yellow and the other marble is red is,

$P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)$

Step-by-step explanation:

A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. So in total there are 25 marbles.

Hence,

Probability of getting yellow ball = $P(Y)=\dfrac{8}{25}$

Probability of getting red ball = $P(R)=\dfrac{5}{25}$

Probability that one marble is yellow and the other marble is red is,

$P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)=\dfrac{8}{25}\cdot \dfrac{5}{25}+\dfrac{5}{25}\cdot \dfrac{8}{25}=0.128$

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3 years ago

If a is three times b, b is twice c, and c is four times d, what is the value of a*c/b*d

dsp73

Answer:

Step-by-step explanation:

a=3b

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