2 3/100 + 2 4/100 =

Mathematics

2 answers:

Pie4 years ago

6 0

Answer:

$4.07$

Step-by-step explanation:

$2 \frac{3}{100} + 2 \frac{4}{100} \\ \\ \frac{203}{100} + \frac{204}{100} \\ \\ 2.03 + 2.04 = 4.07$

irga5000 [103]4 years ago

4 0

Answer:

1=23r5

Step-by-step explanation:

just add

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Let X denote a random variable which corresponds to the number of players in a team who get injured during a game. If we assume

Feliz [49]

Answer:

(a)

The values of X can be 0, 1, 2 , ..., 10 . So, X is a discrete random variable.

(b)

The distribution of X is Binomial distribution with the parameters n = 10 and p = 0.2

(c)

Probability that no one or one person will be injured = P(X = 0) + P(X = 1)

= 10C0 * 0.20 * (1 - 0.2)10-0 + 10C1 * 0.21 * (1 - 0.2)10-1

= 0.810 + 10 * 0.2 * 0.89

= 0.3758096

(d)

Average value of X = np

Average value of X = 10 * 0.2 = 2

(e)

Variance of X = np(1-p)

Variance of X = 10 * 0.2 * (1 - 0.2) = 1.6

(f)

Number of ways in which 2 people gets injured = 10C2 = 10! / ((10-2)! 2!) = (10 * 9) / (2 * 1) = 45

Assume the best player got injures, number of ways in which one people out of remaining 9 people gets injured = 9C1

= 9! / ((9-1)! 1!)

= 9

Probability that the best player got injured = Number of ways in which 1 people gets out of 9 and best person gets injured / Number of ways in which 2 people gets injured

= 9 / 45

= 0.2

4 0

3 years ago

The height, h, in feet of a piece of cloth tied to a waterwheel in relation to sea level as a function of time, t, in seconds ca

irinina [24]

Answer:

d) 40 sec

Step-by-step explanation:

We have been given that the height h, in feet of a piece of cloth tied to a waterwheel in relation to sea level as a function of time, t, in seconds can be modeled by the equation $h=15cos(\frac{\pi}{20})t$ . We are asked to find the time it will take for the waterwheel to complete one turn.