Ask question

Ask question

All categories

3 years ago

12

Two balls are pulled one after another, without replacement, from the box containing three black, five yellow, and seven red bal

ls. What is the probability that the 1st ball is yellow, if the 2nd ball is black

1 answer:

kolezko [41]3 years ago

6 0

Answer:

1/14

Step-by-step explanation:

5/15 × 3/14 = 1/14

Or 0.0714 (3sf)

You might be interested in

harry buys 22 fish he has a round fish bowl and a rectangular fish tank how could he place the fish in the bowl and tank

Lana71 [14]

Answer: put 11 in each one

Step-by-step explanation:

6 0

3 years ago

(y^2+y)(x^4+3x^3-2x^3)=y^2(x^4+3x^3-2x^3)+y(x^4+3x^3-2x^3( is an example of:

Andreas93 [3]

Answer:

B. Distributive property

Step-by-step explanation:

The distributive property says

$(a+b)\cdot c=a\cdot b+b\cdot c$

You are given the expression

$(y^2+y)(x^4+3x^3-2x^3)=y^2(x^4+3x^3-2x^3)+y(x^4+3x^3-2x^3)$

Denote

$c=x^4+3x^3-2x^3$

then your expression is

$(y^2+y)\cdot c=y^2\cdot c+y\cdot c$

Here, you can see that distributive property was used.

Now, change c into the $x^4+3x^3-2x^3$ again

$(y^2+y)\cdot (x^4+3x^3-2x^3)=y^2\cdot (x^4+3x^3-2x^3)+y\cdot (x^4+3x^3-2x^3)$

to get the distributive property for the initial expression

5 0

3 years ago

The answer should be a fraction

Vedmedyk [2.9K]

Ok so 40y2/50y3.... you are going to cancel out the common factor (10)

4y2/5y3..
now apply the exponent rule, which is : xa /xb = 1/ xb-a

so...y2/y3 = 1/ y3 - 2 = 1/y

ANSWER : 4/5y

5 0

4 years ago

Read 2 more answers

What does 104.143 × 10,021.4 equal?

ss7ja [257]

The answer is: <span>1043658.66
Hope this helps :)
</span>

4 0

4 years ago

Read 2 more answers

Amari, a basketball statistician

Pepsi [2]

Ok................? is there more to this

5 0

3 years ago