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2 years ago

PLEASE HELP! 50 POINTS!! LOTS OF POINTS AND WILL GIVE BRAINLIEST TO THE CORRECT ANSWER!!!

Mathematics

2 answers:

garik1379 [7]2 years ago

8 0

the rainfall (in inches) goes down by 00.53 inches. "The average rate of change is 00.53. This means that each year the amount of rainfall in inches goes down by 00.53.

Oksi-84 [34.3K]2 years ago

5 0

Looking through the table, the rainfall (in inches) goes down by 00.53 inches.

Therefore, you could say that,

"The average rate of change is 00.53. This means that each year the amount of rainfall in inches goes down by 00.53."

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Nola purchased 2.5 pounds of cheese for 10. $50 her mother purchased 3 pounds of the same cheese for $12.60 the cost of the chee

Delvig [45]

The answer is 5.2 because if you do 12.60 - 10 it’s 2.6 so you add another 2.6 because it’s 2.6 for a half a pound so if you add the two half of pounds it will add up to one pound so it will be 2.6 + 2.6= 5.2 so basically 5.20$

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3 years ago

Philip ran out of time while taking a multiple-choice test and plans to guess the last 4 questions. Each question has 5 possible

White raven [17]

Using the binomial distribution, it is found that there is a 0.4096 = 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

<h3>What is the binomial distribution formula?</h3>

The formula is:

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

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

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

Considering that there are 4 questions, and each has 5 choices, the parameters are given as follows:

n = 4, p = 1/5 = 0.2.

The probability that he answers exactly 1 question correctly in the last 4 questions is P(X = 1), hence:

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

$P(X = 1) = C_{4,1}.(0.2)^{1}.(0.8)^{3} = 0.4096$

0.4096 = 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

8 0

2 years ago

If I roll a 6 sided dice and then flip a coin,

lina2011 [118]

Answer:

1/12

Step-by-step explanation:

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2 years ago

Sami made 23,400 last year in income from his job. He worked 30 hours per week and worked all 52 weeks of the year. What was his

xxTIMURxx [149]

Answer:

$15 per hour

Step-by-step explanation:

30 hours per week x 52 weeks in a year = 1560 hours per year

23,400 / 1560 = $15 per hour

7 0

3 years ago

Derek wants to construct a square box stall for each horse that is to be housed in a stable. He wants all of the box stalls to h

ale4655 [162]

The total area of the stable is 20,250 sq. ft.

Let n = total number of box stalls.

Each box stall is a square of length 9 ft.
Total area = 9^2n = 81n ft².
Therefore
81n = 20250
n = 20250/81 = 250

Answer: 250 horses.

8 0

3 years ago