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Ostrovityanka [42]
3 years ago
13

Stefan there a coin 1000 times to see how many heads he scored. He said:’If this is a fair coin, I should get exactly 500 heads.

’ Explain why he is wrong.
Mathematics
2 answers:
sattari [20]3 years ago
8 0
He is wrong by him thinking the simple equation which is 1000/2 from the 2 sided coin but in reality you could either get more heads or tails/less heads or less tails. You can’t get an exact number from the chances of basically luck I’d assume
Alenkinab [10]3 years ago
4 0

Answer:

In my opinion it is wrong because he cannot get 50 percent all the time. It could be more right or more wrong. Please mark me brainliest.

Step-by-step explanation:

Have a great day

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If the sum of a number and eight is tripled the result is four less than twice the number. Find the number
DiKsa [7]

Answer:

-28

Step-by-step explanation:

Let the number be x

Given that,

3( x+ 8) = 2x - 4

3x + 24 = 2x -4

3x-2x = -4-24

x= -28

Hope it helps....

8 0
3 years ago
The length of a rectangular plot of land is 10 yards more than its width. If the area of the land 600 square yards , find the di
vagabundo [1.1K]
<span>Let the width of the rectangular plot of land be 'x' yards. Given that the length of the rectangular plot of land is 10 yards more than its width. So, width of the rectangular plot of land = (x + 10) yards. Also given that the area of the rectangular plot of land is 600 square yards. We know that, area of a rectangle = length * width That is, (x+10) * x = 600 x^2 + 10x = 600 x^2 + 10x - 600 = 0 x^2 + 30x - 20x -600 = 0 x(x + 30) - 20(x + 30) = 0 (x +30)(x -20) =0 Therefore, either (x + 30) = 0 or (x - 20) = 0 If x + 30 = 0, then x = -30 and If x - 20 = 0, then x = 20 Since 'x' represents the width of a rectangular plot of land it cannot be negative. Therefore, width of the rectangular plot of land = 20 yards length of the rectangular plot of land= x + 10 = 30 yards</span>
5 0
4 years ago
Stealth Bank has deposits of $700 million. It holds reserves of $70 million and has purchased government bonds worth $215 millio
zhannawk [14.2K]

Answer:

$75 million

Step-by-step explanation:

Given that:

Reserve value = $70 million

Purchased government bond = 215 million

Market value of loan = $490 million

Net worth :

Assets - liability

Assets = (Market value of loan + purchased government bond + reserve value)

(490 million + 215 million + 70 million)

275 million + 70 million

= $775 million

Liability = Deposits = $700 million

Net worth = ($775 - $700) million

Net worth = $75 million

4 0
3 years ago
Is this positive correlation , negative correlation or no correlation?
max2010maxim [7]
Positive correlation
3 0
3 years ago
Read 2 more answers
PLEASE HELP
Lina20 [59]

Answer:

(0 , 3)

Step-by-step explanation:

simplify the equation

y = \frac{3}{2}x + 3

7 0
3 years ago
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