3 years ago

Find the common ratio of the sequence. 3,-9,27,-81

Mathematics

1 answer:

romanna [79]3 years ago

7 0

Answer:

r = - 3

Step-by-step explanation:

To find the common ratio r, divide consecutive terms

- 9 ÷ 3 = - 3

27 ÷ - 9 = - 3

- 81 ÷ 27 = - 3

Thus common ratio = - 3

You might be interested in

Given the recursive formula below what are the first five terms in the sequence.

notsponge [240]

$a_1 = a_0 + 4 = 4$

$a_2 = a_1 + 4 = 8$

$a_3 = a_2 + 4 = 12$

$a_4 = a_3 + 4 = 16$

$a_5 = a_4 + 4 = 20$

I hope this helps you

7 0

3 years ago

Find the area of the parallelogram that has a base of 2 1/2 feet and a height of 1 1/4 feet

blagie [28]

Answer:

3 1/8 ft²

Step-by-step explanation:

The area of a parallelogram is equal to the product of its base and its height.

b × h

2.5 × 1.25

= 3.125

The area is 3.125 feet².

4 0

3 years ago

HELP WILL MARK BRAINLIEST

swat32

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

For student spent $12 on school lunch at this rate find the amount 10 students would spend on the same school lunch?

ASHA 777 [7]

12 / 4 = 3
3 * 10 = 30

6 0

3 years ago

Read 2 more answers

Describe how to determine the average rate of change between x = 3 and x = 5 for the function f(x) = 3x3 + 2. Include the averag

Serhud [2]

Answer:

147

Step-by-step explanation:

Average rate of change is given by the total rise over total run.

$f(x) = 3x^3+2\\f(3)=3*3^3+2=83\\f(5)=3*5^3+2 = 377$

So,

total rise = 377 - 83 = 294

total run = 2

average rate of change = $\dfrac{294}{2} = 147$

8 0

2 years ago