3 years ago

This Question: 1 pt If v=3i+6j, what is ||-2v||

Mathematics

1 answer:

ser-zykov [4K]3 years ago

6 0

ummmmmmmmmmmmmmmmmmmmmmm

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Step-by-step explanation:

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Find the probability of exactly three successes in six trials of a binomial experiment in which the the probability of is 50%.

posledela

Answer: 31.25%

Two ways to solve this problem:

#1: Use the formula: $P(X=x)={n}Cx_{} *p^{x}*(1-p)^{n-x}$

#2 Use a graphing calculator and use the function binompdf(n, p, x)

x = 3
n = 6
p = 0.5

#1: Formula:

$P(X=3)=_{6}C_{3}*0.5^{3} *(1-0.5)^{6-3}=\frac{6!}{3!(6-3)!} *0.5^{3} *0.5^{3}\\=\frac{6!}{3!*3!} *0.5^{3} *0.5^{3}=20*0.125*0.125=0.3125$

#2: Faster method

binompdf(6, 0.5, 3) = 0.3125

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3 years ago

Andre drew a plan of a courtyard at a scale of 1 to 60. On his drawing, one side of the courtyard is 2.75 inches. What is the ac

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Step-by-step explanation:

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4 years ago

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Simplify the expression

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Step-by-step explanation:

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3 years ago

I’d really appreciate the help

kiruha [24]

Answer:

Step-by-step explanation:

a = 4

b= 1

c = 2

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Leftside of equation:

No. of H molecules = 4

No. of Cl molecules = 4

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No. of P molecules = 2

Right side of equation:

No. of H molecules = 4

No. of Cl molecules = 4

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No. of P molecules = 2

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3 years ago