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rjkz [21]
3 years ago
7

Using the counting principle to find the probability of choosing the 8 winning lottery numbers when the numbers are chosen at ra

ndom from 0 to 9.
A. 1/1,000,000,000
B. 1/43,046,721
C. 1/10,000,000
D. 1/100,000,000
Mathematics
1 answer:
mash [69]3 years ago
5 0

I believe the answer is D.1/100,000,000

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Two similar rectangles have a scale factor of 3:2 the perimeter of the small rectangle is 50 feet.What is the perimeter of the l
Katyanochek1 [597]

Answer: 75 feet

Step-by-step explanation:

From the question, we are informed that two similar rectangles have a scale factor of 3:2 and that the perimeter of the small rectangle is 50 feet.

The perimeter of the large rectangle measured in feet will be calculated as:

= 3/2 × 50

= 150/2

= 75 feet

7 0
2 years ago
Abraham has visited 10 countries already. He has a goal of visiting at least 50 countries. He plans to achieve this goal by visi
olasank [31]

Given :

Abraham has visited 10 countries already. He has a goal of visiting at least 50 countries.

He plans to achieve this goal by visiting 5 new countries per year (y) for the next several years.

To Find :

Which inequality and solution shows the amount of years that it will take for Abraham to meet his goal.

Solution :

Let, after x years Abraham visited y countries.

It is mathematically given as :

10 + 5x=y

Now, it is given that his goal is minimum of 50 countries.

So,

10+5x \ge 50\\\\5x\ge 40\\\\x \ge 8

Therefore, minimum years required to meet his goals are 8.

Hence, this is the required solution.

4 0
3 years ago
In a recent year, the population of California was about 2.52 x 10^7 people. Its land area is about 4.05 x 10^5 km^2. What was t
andrezito [222]

The population of California = 2.52 \times 10^7 people.

Land area of California = 4.05 \times 10^5km^2.

We have to determine the average number of people per square kilometer.

Average number of people per square kilometer =

Land area of California \div Population of California

= 4.05 \times 10^5 \div 2.52 \times 10^7

= 1.6 \times 10^{-2}

Therefore, the average number of people per square kilometer is  1.6 \times 10^{-2}.

It is represented in scientific notation as Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.

4 0
3 years ago
Of 50 students surveyed, 19 said they had soda for breakfast. write a portion in fraction, decimal, percent
Naya [18.7K]
Answers:
___________________________
In fraction:  \frac{19}{50} .
___________________________
In decimal:  0.38  .
_________________
In percent:  38 %  .
_________________
Explanation:
_________________
19/50 = (19*2)/(50*2) = 38/100 .

38/100 = 38 ÷ 100 = 0.38  .

38/100 = 38 % .
___________________________
7 0
3 years ago
Please help with number 7! :D please and thank you!
schepotkina [342]

Answer:

fraction

Step-by-step explanation:

any number between 0 and 1 is a fraction

3 0
3 years ago
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