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3 years ago

Find the first, fourth, and eighth terms of the sequence. A(n) = –3 • 2n–1

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

8 0

first term n= 1

A(1) = -3. 2 (1)-1

= -3. 2(1)-1

= -3 .2-1

= -3. 1

= -3

fourth term n = 4

A(4) = -3. 2(4) -1`

= -3. 8 -1

= -3 . 7

= -21

8th term n = 8

A(8) = -3 .2(8) -1

= -3. 16-1

= -3. 15

= -45

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Murrr4er [49]

Answer:

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Step-by-step explanation:

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The largest area than can be enclosed is:

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The dimensions of the triangle are:

$x = 625\,m$

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3 0

4 years ago

Which of the following statements have the same result? Explain each step in solving each one.. . I f(3) when f(x) = 2x + 2. II

zhuklara [117]

F(x) = 2x + 2.....find f(3)
f(3) = 2(3) + 2
f(3) = 6 + 2
f(3) = 8

f(x) = (3x - 4)/5....find f^-1(4)
y = (3x - 4)/5...swap the variables
x = (3y - 4)/5 ...solve for y
5x = 3y - 4
5x + 4 = 3y
(5x + 4)/3 = y
f^-1(x) = (5x + 4)/3.....for f(4)
f(4) = (5(4) + 4)/3
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so 1 and 2 have the same result...8

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