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natulia [17]
3 years ago
7

Which of the following is not a geometric sequence?

Mathematics
1 answer:
sleet_krkn [62]3 years ago
6 0

Answer:

-7,-5.8,-4.6,-3.4,-2.2

Step-by-step explanation:

A geometric sequence must have a common ratio.

-3 / 1 = -3

9 / -3 = -3

-27 / 9 = -3

81 / -27 = -3

The first sequence is a geometric sequence.

-5.8 / -7 = 0.829...

-4.6 / -5.8 = 0.793...

The second sequence is not a geometric sequence (it is an arithmetic sequence with a common difference of 1.2).

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Step-by-step explanation:

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A sushi restaurant makes 12 types of sushi rolls each day. They also offer 7 sashimi plates. A popular combination platter at th
VikaD [51]

Answer:

1386 possible combinations

Step-by-step explanation:

A sushi restaurant makes 12 types of sushi rolls each day. They also offer 7 sashimi plates. A popular combination platter at the restaurant allows the customer to choose 2 different types of rolls and 2 different types of sashimi plates. What is the number of possible combination that can be made.

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6 0
4 years ago
Which value of b in an exponential function will result in the percent rate of change given? 23% decrease b = 8% increase b = 15
prisoha [69]

Answer:

Given an exponential function of the form

y = a*(b)^x

The values of b that will result in the desired percentage values are:

Case 1

b = 23% decrease

1 - 0.23 = 0.77

y = a*(0.77)^x

Case 2

b = 8% increase

1 + 0.08 = 1.08

y = a*(1.08)^x

Case 3

b = 15% decrease

1 - 0.15= 0.85

y = a*(0.85)^x

Case 4

b = 120% increase

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See attached picture for examples

6 0
3 years ago
What is the constant of variation for the inverse variation? xy = 8
Advocard [28]

Answer:

  8

Step-by-step explanation:

The constant of variation is the constant in the equation: 8.

___

The equation can be rewritten to be

  y = 8/x

Compared to the generic equation for inverse variation, ...

  y = k/x

we see that the constant of variation (k) is the constant in the given equation, 8.

6 0
4 years ago
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