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fenix001 [56]
3 years ago
9

find the common ratio r for the geometric sequence and use r to find the next three terms 5,15,45,135

Mathematics
1 answer:
Aleks04 [339]3 years ago
8 0

Answer: 405


Step-by-step explanation:

ratio r for the geometric  sequence: 5, 15, 45, 135

r is a radios of a circle,

d is the Diameter

r1=5. r2=15, r3=45, r4=135, r5=?

2*r=d

so:

d1=10, d2=30, d3=90, d4= 270

now following the sequence:

r1+d1=r2       5+10=15

r2+d2=r3      15+30=45

r3+d3=r4       45+90=135

r4+d4=r5      therefore 135 + (135*2) = 135+270=405

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Find the LinReg line of best fit for this data set.
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The LinReg line of best fit for this data set is ŷ = -1.24X + 0.66

<h3>What is regression line?</h3>

A linear regression line has an equation of the form Y = a + bX, where X is the explanatory variable and Y is the dependent variable.

Given:

(−5, 6.3),

(−4, 5.6),

(−3, 4.8),

(−2, 3.1),

(−1, 2.5),

(0, 1.0),

(1, −1.4)

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Learn more about regression line here:

brainly.com/question/7656407

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