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blagie [28]
3 years ago
8

If you flip three fair coins, what is the probability that the first two flips will both be heads, and the third flip will be ei

ther heads or tails?
Mathematics
2 answers:
horsena [70]3 years ago
8 0

Answer:

1/4

Step-by-step explanation:

Degger [83]3 years ago
6 0

Answer:

1/4

Step-by-step explanation:

This is correct on khan academy!

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Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? Choose al
wariber [46]

Answer: Choise A and Choise B.

Step-by-step explanation:

Given the following expression:

3x+3(x+y)

You can simplify it in order to find equivalent expressions.

Appying the Distributive Property, you get:

3x+(3)(x)+(y)(3)=3x+3x+3y

So:

1. If you add the like terms, you get this equivalent expression:

3x+3x+3y=6x+3y

2. But if you factor out 3, you get the following equivalent expression:

3x+3x+3y=3(x+x+y)

Therefore, the expression shown in Choice A and Choise B are equivalents to the expression 3x+3(x+y)

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3 years ago
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2x-2/5=8 Please explain answer
Juliette [100K]

Answer:

x=21

Step-by-step explanation:

1. 2x-2/5*5=8*5 Multiply the 5 on both sides to cancel out the denominator.

2. 2x-2+2=40+2 Add 2 on both sides to isolate the term with the variable.

3. 2x/2=42/2 Divide both sides by 2 in order to isolate the variable itself. Yay, you got the answer, 21!

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Which of the following is a common denominator of 1/4 and 5/6? Answers:
Nuetrik [128]

Answer:

C: 12

Step-by-step explanation:

1/4 and 5/6  have a common denominator

List the multiples of each number

4: 4,8,12,16,20

6: 6,12,18

The first number they both go into is 12

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Which of the following is not a condition of a Tessellation?
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<span>The answer would be 1. Tessellation involves tiling and is a display of shapes fitted together on a surface, which means that tessellation does not only compose of one shape. It has to have a repeating pattern with no gaps. That can be achieved with a variety of shapes.</span>

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Kino bought a pizza for $12 and four medium drinks at Mariano's Pizza. Use n as a variable and write an expression to represent
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Answer:

12p + 4d = n

Explanation:

p stands for pizza, d for drinks. And the unknown amount of money spent here is represented by n.

p + d will be our total, that's why it is addition.

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