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storchak [24]
3 years ago
5

2x-(6x-1) what is the answer to this equation​

Mathematics
1 answer:
Rashid [163]3 years ago
8 0

Answer:

-4x+1

Step-by-step explanation:

2x-(6x-1)

=2x-6x+1

=-4x+1

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Helene claimed that the expected value when rolling a fair die was 3.5. Steve said that wasn't possible. He said that the expect
Nesterboy [21]

Answer:

Helene is right

Step-by-step explanation:

Mathematically, the expected values is defined as the sum of all the possible outcomes that an event can have times the probality of the respective outcome:

x = ∑ p *i,

where x is the expected value, i represents every outcome that can occur, and p is the probability of said outcome.

Now, for the case of a dice, the expected value would be:

x = 1 * \frac{1}{6} + 2 * \frac{1}{6} + 3 * \frac{1}{6} + 4 * \frac{1}{6} + 5* \frac{1}{6} + 6 * \frac{1}{6},

as every outcome has the same chance of happenning. Solving we get that:

x= \frac{1}{6} *(1 +2 +3 +4+5+6) = \frac{1}{6} * 21 = 3.5

Helene is right.

4 0
4 years ago
Mary has $267 in her checking account . She writes checks for $33,$65 and 112. What is the balance in her account now ?
natulia [17]

Answer:

57

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
HELP NOW PLEASE!<br>What is the volume of a cube with length 8 feet? <br>V=lwh   <br><br> _ft³
Igoryamba

the volume of the cube is: 512 cubic feet

Step-by-step explanation:

Given

Length = l = 8 feet

The formula for the volume of a cube is given by:

V = l * w * h

In case of a cube, the length, width and height are equal so the volume will be:

V = l^3

Putting l = 8

V = (8)^3\\V = 8*8*8\\V = 512\ ft^3

Hence,

the volume of the cube is: 512 cubic feet

Keywords: Volume, cube

Learn more about volume at:

  • brainly.com/question/6166224
  • brainly.com/question/6112033

#LearnwithBrainly

5 0
4 years ago
(15 / 5)+9+(14 - 5 )*3
bazaltina [42]

Answer:

39

Step-by-step explanation:

(15 / 5)+9+(14 - 5 )*3

7 0
4 years ago
Read 2 more answers
Simplify 2(2x-y)-4(x-y)+3y<br><br>please give the answer if you know how to solve it​
MakcuM [25]

Answer:

2( 2x - y ) -4( x - y ) +3y

4x - 2y - 4x + 4y + 3y

-2y + 4y + 3y

-2y +7y

5y

6 0
3 years ago
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