What is the multiplier? A. 0.123 B. 0.111 C. 9 D. 81

Archy [21]

Y+4+3y+6
4y+10
Here the answer!

7 0

3 years ago

A film crew documented the Korowai tribe as they built one of their amazing tree houses . Based on the home construction the cre

luda_lava [24]

Answer: 6 - 6(b +p) = b

Step-by-step explanation:

3 0

3 years ago

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When One Route and their support act, Cinnamon Bunnies, played, £54,000 was split at a ratio of 1:3:8 between the arena, Cinammo

dimaraw [331]

The ratio is split as arena first, Cinnamon Bunnies second and One Route third.

Add the ratios together: 1 + 3 +8 = 12

Divide the total money by 12, then multiply that by the share One Route gets (8)

54,000 / 12 = 4,500

4,500 x 8 = 36,000

One Route get £36,000

3 0

3 years ago

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Show that if X is a geometric random variable with parameter p, then

Lubov Fominskaja [6]

Answer:

$\sum_{k=1}^{\infty} \frac{p(1-p)^{k-1}}{k}=-\frac{p ln p}{1-p}$

Step-by-step explanation:

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

$P(X=x)=(1-p)^{x-1} p$

Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:

$X\sim Geo (1-p)$

In order to find the expected value E(1/X) we need to find this sum:

$E(X)=\sum_{k=1}^{\infty} \frac{p(1-p)^{k-1}}{k}$

Lets consider the following series:

$\sum_{k=1}^{\infty} b^{k-1}$

And let's assume that this series is a power series with b a number between (0,1). If we apply integration of this series we have this:

$\int_{0}^b \sum_{k=1}^{\infty} r^{k-1}=\sum_{k=1}^{\infty} \int_{0}^b r^{k-1} dt=\sum_{k=1}^{\infty} \frac{b^k}{k}$ (a)

On the last step we assume that $0\leq r\leq b$ and $\sum_{k=1}^{\infty} r^{k-1}=\frac{1}{1-r}$ , then the integral on the left part of equation (a) would be 1. And we have: