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3 years ago

Which number is the common difference of the sequence -92,-74,-54,-38,-20?

2 answers:

8 0

The common difference if there is one is the constant difference that occurs between any term and the term before it.... in this case:

There is no common difference,

dx=18,20,16,18 the difference or velocity is not constant...

d2x=2, -4,2 the acceleration is not constant...

d3x=-6,6 the thrust is not constant

Now we might be tempted to say that:

d4x=12 and say that that is constant and we COULD make a quartic equation fit all the data points, but without further data points in the sequence there is no mathematical proof that the quartic equation would produce accurate data points outside of the range given...

And solving a system of five equations for five unknowns is tedious for such a problem...a^4+bx^3+cx^2+dx+e=y

madam [21]3 years ago

8 0

Answer:

The answer is 18

Step-by-step explanation:

Each number is getting 18 added to it

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MrRa [10]

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3 years ago

A bridge hand in which there is no card higher than a nine is called a Yarborough. Specify an appropriate sample space and deter

Vilka [71]

Answer:

The probability of Yarborough when you are randomly dealt 13 cards out of a well-shuffled deck of 52 card is 0.000547.

Step-by-step explanation:

The number of ways you can choose a set of 13 different cards from a deck of 52 cards is given by 52P13.

Hence the unordered sample space has 52P13 equally likely outcomes. The number of outcomes with no card above a nine is 32P13.

This leads to the same value for the desired probability of a Yarborough:

32P13 / 52P13 = 0.000547.

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3 years ago

The radius of a sphere measures 2 units. What is its surface area? S = 4nr2 S = 4n(2)2 Surface area = 16 square units

garri49 [273]

Answer:

50.24 sq. units

Step-by-step explanation:

S = 4πr² = 4×3.14× 2² = 3.14 × 16 = 50.24 sq. units

6 0

3 years ago

What lists all integer solutions of the inequality |x|<2

Nookie1986 [14]

Answer:

The solution to that inequality is (-2,2).

Step-by-step explanation:

Given the inequality |x|<2, we have two possibilities

1) x<2 or

2) -x<2 ⇒ x> -2.

Then the intersection between solutions is (-2, 2).

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3 years ago

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Citrus2011 [14]

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Step-by-step explanation:

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3 years ago