Is 7.8 equal to nine

Mathematics

2 answers:

BabaBlast [244]3 years ago

8 0

No. 7.8 is not equivalent to 9.

If you rounded to the nearest whole number, yes, the number that you'd get would be 9 but if you were to look at the two values, 7.8 and 9, then no, these two are not equivalent due to the fact that 9 is 1.2 values higher than 7.8

Butoxors [25]3 years ago

3 0

Answer:

Step-by-step explanation:

7.8 is 7.8 not 9 they are both rational numbers

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A bag contains 6 red apples and 5 yellow apples. 3 apples are selected at random. Find the probability of selecting 1 red apple

tester [92]

Answer: The required probability of selecting 1 red apple and 2 yellow apples is 36.36%.

Step-by-step explanation: We are given that a bag contains 6 red apples and 5 yellow apples out of which 3 apples are selected at random.

We are to find the probability of selecting 1 red apple and 2 yellow apples.

Let S denote the sample space for selecting 3 apples from the bag and let A denote the event of selecting 1 red apple and 2 yellow apples.

Then, we have

$n(S)=^{6+5}C_3=^{11}C_3=\dfrac{11!}{3!(11-3)!}=\dfrac{11\times10\times9\times8!}{3\times2\times1\times8!}=165,\\\\\\n(A)\\\\\\=^6C_1\times^5C_2\\\\\\=\dfrac{6!}{1!(6-1)!}\times\dfrac{5!}{2!(5-2)!}\\\\\\=\dfrac{6\times5!}{1\times5!}\times\dfrac{5\times4\times3!}{2\times1\times3!}\\\\\\=6\times5\times2\\\\=60.$