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Andre45 [30]
3 years ago
5

Which number represents the probability of an event that is very likely to occur?

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0

A probability always lies bewteen 0 and 1. So, option B is not even a probability.

As for the others, probability 0 means that the even't cannot happen, whereas probability 1 means that event is certain. So, the bigger the number, the greater the probability (as one may expect).

Since 0.09 < 0.12 < 0.89, the greatest number represents the event that is more likely to occur.

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frez [133]
Yo bro bro I’m bout to get my food now
5 0
2 years ago
20 km is how many dam
ZanzabumX [31]
Hello!

OK, so we need to find out 20 km = ? dam

What we know:
1 km = 100 dam

Now, lets multiply to get our answer:

20 × 100 = 2,000

This tells us that 20 km = 2,000 dam

Check:

2,000 ÷ 20 = 10

This tells us that we are CORRECT!

Answer: 20 km = 2,000 dam

Hope this helps! Good luck! (:
3 0
2 years ago
Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer. 1 inch ≈
mr_godi [17]

Answer:

  7.763×10^7 inches

Step-by-step explanation:

  (1225\,mi)\dfrac{1\,in}{1.578\cdot 10^{-5}\,mi}=\dfrac{12.25}{1.578}\cdot 10^{2-(-5)}\,in \approx 7.763\cdot 10^7\,in

When writing 1225 in scientific notation, it is convenient to choose an exponent so that the division result comes out with the right scale factor. It is easy to see that 1.2 < 1.6, so use of numbers with exactly one digit to the left of the decimal point would result in a fraction as an answer. We want the answer to have 1 digit left of the decimal point, so by scaling the operands to be 12. and 1.6, we get that result. Of course, the powers of 10 are adjusted accordingly.

This scaling process only matters if you're computing the results by hand. Any calculator can properly keep track of the required exponents.

__

"Back in the day" when slide rules were the calculating tool of choice, the operands and answer to any multiplication or division problem were only shown as 3 (sometimes 4) significant digits. All of the power-of-ten scaling was done "by hand" (usually, mentally). That is, the division would be 1225/1578 ≈ 776 × some scale factor. This is where thinking of the numbers as 12.25/1.578 = 7.76 comes in handy.

3 0
3 years ago
You work in the tech support department. An employee wants to reduce a photo so it's 1/4 the size the original, but the software
Luba_88 [7]
1/4 = 25/100 = 25%

D. 25%
7 0
3 years ago
Tank A contains a mixture of 10 gallons water and 5 gallons pure alcohol. Tank B has 12 gallons water and 3 gallons alcohol. How
12345 [234]
We know that
The mixture in Tank A is 5/(5+10) = 1/3 pure alcohol.
The mixture in Tank B is 3/(3+12) = 1/5 pure alcohol.
We want to combine these to make a mixture that is 25% = 1/4 pure alcohol.
Let
x------------------> the volume in gallons of solution taken from Tank A.
y------------------>the volume in gallons of solution taken from Tank B
Then
the volume taken from Tank B will be y=(8 -x)
remember that we are making a total of 8 gallons of solutions.

The alcohol content of the mixture is(1/3)x +(1/5)(8 -x) = (1/4)*85x + 3(8 -x) = 30 ----------> 5x+24-3x=30----------> 5x-3x=30-24
2x = 6 ----------------> x=3
y=8-x--------> y=8-3-----> y=5

the answer is
3 gallons should be taken from Tank A;
5 gallons should be taken from Tank B
5 0
2 years ago
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