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2 years ago

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Jamie has a jar of coins containing the same number of nickels, dimes and quarters. The total value of the coins in the jar is $

13.20. How many nickels does Jamie have?

2 answers:

worty [1.4K]2 years ago

8 0

Answer:

wrong

Step-by-step explanation:

Phantasy [73]2 years ago

3 0

Answer:

4.4$

Step-by-step explanation:

Because nickels=dimes=quarters

⇒Nickels = 13.20$ ÷ 3= 4.4$

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Step-by-step explanation:

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Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

The probability that a person in the United States has type B+ blood is 12%.

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This is P(X = 3).

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$P(X = 3) = C_{3,3}.(0.12)^{3}.(0.88)^{0} = 0.001728$

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$=\displaystyle\int_0^1(-2t\,\vec\imath+(5-5t)\,\vec\jmath)\cdot(-5\,\vec\imath+2\,\vec\jmath)\,\mathrm dt$

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d. Notice that we can write the line integral as

$\displaystyle\int_C\vecF\cdot\mathrm d\vec r=\int_C(-y\,\mathrm dx+x\,\mathrm dy)$

By Green's theorem, the line integral is equivalent to

$\displaystyle\iint_D\left(\frac{\partial x}{\partial x}-\frac{\partial(-y)}{\partial y}\right)\,\mathrm dx\,\mathrm dy=2\iint_D\mathrm dx\,\mathrm dy$

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