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3 years ago

Suppose a coin has been altered so that the probability of heads coming up is 2/5. What is the probability of tails coming up?

Mathematics

2 answers:

kvasek [131]3 years ago

7 0

Answer:

The probability of tails coming up is $\dfrac{3}{5}$

D is correct

Step-by-step explanation:

Suppose a coin has been altered so that the probability of heads coming up is 2/5.

A coin has two possibility either head or coin.

We are given probability of heads coming up is 2/5

$P(H)=\dfrac{2}{5}$

The sum of probability of all value is 1.

$P(H)+P(T)=1$

$\dfrac{2}{5}+P(T)=1$

$P(T)=1-\dfrac{2}{5}$

$P(T)=\dfrac{3}{5}$

Hence, The probability of tails coming up is $\dfrac{3}{5}$

lozanna [386]3 years ago

6 0

I believe the answer is D.

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Answer:

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Step-by-step explanation:

F. The converse of the conditional.

The converse would state the following:

"If it is January, then it is winter in the United States" (Original).

"If it is winter in the United States, then it is January" (Converse).

It is not true, as it can be December, January, or February during the winter season.

G. The inverse of the conditional.

The inverse would state the following:

"If it is January, then it is winter in the United States" (Original).

"If it is not January, then it is not winter in the United States" (Inverse).

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H. The contrapositive of the conditional.

The contrapositive would state the following:

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3 years ago

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KengaRu [80]

Answer:

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3 years ago

A football team won 5% of their football games. If they played 20 games, how many games did they win?

Lana71 [14]

Answer:

Step-by-step explanation:

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Romashka [77]

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3 years ago

Solve. 14/n+7=10/n-4 N=5.25 N=3.5 N=31.5 N=30

Ilya [14]

Answer:

n=31.5

Step-by-step explanation:

The given question is:

$\frac{14}{n+7}=\frac{10}{n-4}$

Cross multiply to get:

$14(n-4)=10(n+7)$

Expand the parenthesis:

$14n-56=10n+70$

Group similar terms:

$14n-10n=70+56$

Combine the like terms

$4n=126$

Divide both sides by 4

$n=\frac{126}{4}$

n=31.5

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3 years ago