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2 years ago

or points :-) 4000000000000000000000000000+88888888888888888888888888888888888888-11111111111111111111111111111111111=

Mathematics

1 answer:

Ivan2 years ago

6 0

Answer:

funny

Step-by-step explanation:

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before a renovation, a movie theater had 149 seats. After the renovation, the theater had 180 seats. what is the approximate per

liberstina [14]

180 - 149 = 31

x/100 *149 = 31

1.49x = 31

x= 31/1.46 = 20.81 %

5 0

3 years ago

Past records indicate that the probability of online retail orders that turn out to be fraudulent is 0.08. Suppose that, on a gi

Sunny_sXe [5.5K]

Answer:

The probability that there are 2 or more fraudulent online retail orders in the sample is 0.483.

Step-by-step explanation:

We can model this with a binomial random variable, with sample size n=20 and probability of success p=0.08.

The probability of k online retail orders that turn out to be fraudulent in the sample is:

$P(x=k)=\dbinom{n}{k}p^k(1-p)^{n-k}=\dbinom{20}{k}\cdot0.08^k\cdot0.92^{20-k}$

We have to calculate the probability that 2 or more online retail orders that turn out to be fraudulent. This can be calculated as:

$P(x\geq2)=1-[P(x=0)+P(x=1)]\\\\\\P(x=0)=\dbinom{20}{0}\cdot0.08^{0}\cdot0.92^{20}=1\cdot1\cdot0.189=0.189\\\\\\P(x=1)=\dbinom{20}{1}\cdot0.08^{1}\cdot0.92^{19}=20\cdot0.08\cdot0.205=0.328\\\\\\\\P(x\geq2)=1-[0.189+0.328]\\\\P(x\geq2)=1-0.517=0.483$

The probability that there are 2 or more fraudulent online retail orders in the sample is 0.483.

5 0

3 years ago

The first terms of a geometric sequence are 0.778,-2.33,7,-21, and 63. What is the 6th term?

aliya0001 [1]

Answer:

-189

Step-by-step explanation:

If you continue the pattern by multiplying the term by -3, you will eventually get -189 as the 6th term

3 0

3 years ago

Write the quadratic function f(x) = 3x2 - 6x + 9 in vertex form

lubasha [3.4K]

3*3-5*+834556665334567776543

4 0

3 years ago

Every hour of driving uses

xenn [34]

Answer:

45 gallons

Step-by-step explanation:

1 hour = 3 gallons

2 hours = 6 gallons

3 hours = 9 gallons

4 hours = 12 gallons

5 hours = 15 gallons

10 hours = 30 gallons

15 hours = 45 gallons

4 0

3 years ago