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3 years ago

100 POINTSFind the first five terms of the recursive sequenceAn=-6An-1 where A1=4.5

Mathematics

2 answers:

MrRissso [65]3 years ago

8 0

Answer:

hey,see the attachment above

kotykmax [81]3 years ago

4 0

An=-6An-1 where A1=4.5

A2 = -6(4.5) = -27

A3 = -6(-27) = 162

A4 = -6(162) = -972

A5 = -6(-972) = 5,832

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Each Necklace Had 36 Beads . 864 / 24 = 36 .

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What is the value of u and v?

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Answer and Explanation:

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X − 78 = −42 x = 78 − 42 x = −36

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Answer:

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3 years ago

NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h ( t ) = − 4.

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Answer:

$\displaystyle 1)48.2 \: \: \text{sec}$

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<h3>Question-1:</h3>

so when flash down occurs the rocket will be in the ground in other words the elevation(height) from ground level will be 0 therefore,

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to solve the equation can consider the quadratic formula given by

$\displaystyle x = \frac{ - b \pm \sqrt{ {b}^{2} - 4 ac} }{2a}$

so let our a,b and c be -4.9,229 and 346 Thus substitute:

$\rm\displaystyle t = \frac{ - (229) \pm \sqrt{ {229}^{2} - 4.( - 4.9)(346)} }{2.( - 4.9)}$

remove parentheses:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ {229}^{2} - 4.( - 4.9)(346)} }{2.( - 4.9)}$

simplify square:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ 52441- 4( - 4.9)(346)} }{2.( - 4.9)}$

simplify multiplication:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ 52441- 6781.6} }{ - 9.8}$

simplify Substraction:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ 45659.4} }{ - 9.8}$

by simplifying we acquire:

$\displaystyle t = 48.2 \: \: \: \text{and} \quad - 1.5$

since time can't be negative

$\displaystyle t = 48.2$

hence,

at 48.2 seconds splashdown occurs

<h3>Question-2:</h3>

to figure out the maximum height we have to figure out the maximum Time first in that case the following formula can be considered

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about 3021.6 meters high above sea-level the rocket gets at its peak?

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