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Anna [14]
3 years ago
11

Suppose you flip 1000 coins. what is the probability of getting exactly 500 heads

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0
<span>Suppose you flip 1000 coins. what is the probability of getting exactly 500 heads so itd be 
</span>1/500
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What is the perimeter of triangle ABC?
Anuta_ua [19.1K]
 The perimeter is 30 for this answer I just did this yesterday. What you do is look at the top of the triangle the other side of where 6 is at is congruent and you do the same for 4 and 5 
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3 years ago
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What is the width of the rectangle?<br> 30y<br><br> 60y4
Bas_tet [7]

Answer:

2 y^3

Step-by-step explanation:

Area of rectangule is length * width

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2 years ago
If AB=50, what are AC and CB?
KiRa [710]
X=6
AC= 14
CB= 36
hope this helps!!
6 0
3 years ago
Suppose you want to build a small walkway around your garden so that there is someplace to walk around and work on your vegetabl
wolverine [178]

Answer:

Approximately 3.5 feet - Option B

Step-by-step explanation:

Imagine that you have this walkway around the garden, with dimensions 30 by 20 feet. This walkway has a difference of x feet between it's length, and say the dimension 30 feet. In fact it has a difference of x along both dimensions - on either ends. Therefore, the increases length and width should be 30 + 2x, and 20 + 2x, which is with respect to an increases area of 1,000 square feet.

( 30 + 2x ) * ( 20 + 2x ) = 1000 - Expand "( 30 + 2x ) * ( 20 + 2x )"

600 + 100x + 4x^2 = 1000 - Subtract 1000 on either side, making on side = 0

4x^2 + 100x - 400 = 0 - Take the "quadratic equation formula"  

( Quadratic Equation is as follows ) - x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a},

x=\frac{-100+\sqrt{100^2-4\cdot \:4\left(-400\right)}}{2\cdot \:4}:\quad \frac{5\left(\sqrt{41}-5\right)}{2},

x=\frac{-100-\sqrt{100^2-4\cdot \:4\left(-400\right)}}{2\cdot \:4}:\quad -\frac{5\left(5+\sqrt{41}\right)}{2}

There can't be a negative width of the walkway, hence our solution should be ( in exact terms ) \frac{5\left(\sqrt{41}-5\right)}{2}. The approximated value however is 3.5081...or approximately 3.5 feet.

4 0
3 years ago
There are 9 marbles in a bag, 3 of those marbles are red. what is the probability of picking a red marble randomly from the bag?
boyakko [2]

Answer:

1/3 because there's more of the other marbles than red

Step-by-step explanation:

7 0
2 years ago
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