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Hoochie [10]
3 years ago
10

For a finite sequence of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive term

s of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 1, –3, 2, 5, –4, –6 ?
A. 1
B. 2
C. 3
D. 4
E. 5
Mathematics
1 answer:
UkoKoshka [18]3 years ago
3 0

Answer:

Option C.

Step-by-step explanation:

The given given sequence is

1, –3, 2, 5, –4, –6

We need to find the pairs of consecutive terms of the sequence and their product.

Pairs of consecutive terms | Product

     1, -3                                  -3

     -3, 2                                  -6

      2, 5                                  10

      5, -4                                -20

     -4, -6                                 24

Here the product of three pairs of consecutive terms is negative.

The number of variations in sign for the sequence is 3. Therefore, the correct option is C.

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irina1246 [14]

Answer:

0.5\ days

Step-by-step explanation:

we know that

Using proportion

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5 0
3 years ago
A black shoe is selected at random from a bin of 6 black shoes and 4 brown shoes and not replaced. What is the probability that
MrMuchimi
Hello,

If 1 black shoe is selected from a bin of 6 black shoes and 4 brown shoes and not replaced, then there are 5 black shoes and 4 brown shoes remaining. To find the probability that the a black shoe will be selected out of 5 black shoes and 4 brown shoes, we divide the number of black shoes over the total number of shoes (Each selection of a shoe is independent).

Doing this, we get 5 / (5+4) = 5/9 ≈ 0.55 
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Hope this helps!
6 0
3 years ago
Jackson is packing for a trip with his family. He is taking the items shown in the table.
Serhud [2]

Answer:

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Step-by-step explanation:

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so 8 is 100% using that 1 of 100% is 12.5%

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hop this helps.

8 0
3 years ago
write and solve an equation for the problem. If 14 empty water bottles weigh 4.5 pounds, what will 9 empty water bottles weigh?
dolphi86 [110]

Answer:

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Step-by-step explanation:

5 0
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A number k minus the quotient of a number g and 5
Andrej [43]
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So your expression will be:

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hope this helps
6 0
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