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Vilka [71]
2 years ago
15

Bill and Ben each have three cards, numbered 1, 2 and 3. They each take one of their own cards. Then they multiply together the

two numbers on the cards. a) What is the probability that their answer is an even number? b) What is the probability that their answer is a number greater than 5?​
Mathematics
1 answer:
tatiyna2 years ago
7 0

Answer:

a) 5/9

b) 1/3

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The volume (in cubic meters), vvv, of a rectangular prism is given by the expression: v = a^4-2a^2b^2+b^4v=a 4 −2a 2 b 2 +b 4 v,
zhannawk [14.2K]

Answer:

{a}^{2}  -  {b}^{2}

a - b

a + b

Step-by-step explanation:

The given expression that represents the volume of the rectangular prism is:

v =  {a}^{4}  - 2 {a}^{2}  {b}^{2}  +  {b}^{4}

We can rewrite this to reveal a perfect square pattern.

v =(  { {a}^{2}) }^{2}  - 2 {a}^{2}  {b}^{2}  + ( {b}^{2})^{2}

We factor using perfect squares to obtain:

v = ( {a}^{2}  -  {b}^{2} )^{2}

v = ( {a}^{2}  -  {b}^{2} )( {a}^{2}  -  {b}^{2} )

Volume is three dimensional so we need a third factor different from 1.

We further factor one of the difference of two squares to get:

v = ( {a}^{2}  -  {b}^{2})(a - b)(a + b)

So pick the following unique dimensions from the possible answers:

{a}^{2}  -  {b}^{2}

a - b

a + b

6 0
3 years ago
1st question : Htwe Htwe made 500 cookies. She sold ¾of them and gave ⅖ of the remainder to all her friends. How many cookies we
pychu [463]

75 cookies

Step-by-step explanation:

500 × 0.25(3/4 cookies sold)= 125

125 - 0.4(2/5 gave to her friends) = 75

75 cookies remain

5 0
3 years ago
PLEASE ANSWERRRR!! (4 x 3) + (4 x 7) = 4 x (? + ?)
Vlada [557]

how is the volume of a solution used in calculating concentration?

3 0
3 years ago
Read 2 more answers
7 + k = 11 step explanation
Greeley [361]

Answer:

k = 4

Step-by-step explanation:

11 - 7 = 4

6 0
3 years ago
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Elenna [48]

Answer:

Step-by-step explanation:

Yes

3 0
4 years ago
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