3 years ago

Hey this is easy. I just need to know how many pets you have for a math project

Mathematics

1 answer:

bearhunter [10]3 years ago

3 0

I have 3 pets at home

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10 Y plus 9Y minus 6Y plus 6Y simplified

Katena32 [7]

10 y plus 9 y minus 6 y plus 6 y

=> 10y + 9y - 6y + 6y
= 10y + 9y - 0 = 19y

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2 years ago

Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -6 and 162, respectively. Pl

kicyunya [14]

Hello,

$u_{0} =a\\
 u_{1} =a*r\\
 u_{2} =a*r^{2}=-6\\
 u_{3} =a*r^{3}\\
 u_{4} =a*r^{4}\\
 u_{5} =a*r^{5}=162\\
....\\
\boxed{ u_{n} =a*r^{n}} \\

\dfrac{ 162}{-6} = \dfrac{ u_{5} }{ u_{3}} = \dfrac{ a*r^{5}}{ a*r^{2}} =r^3= -27\\
==\ \textgreater \ r=-3\\

 u_{2} =a*r^{2}=-6=a*(-3)^2 \ ==\ \textgreater \ a=-\frac{6}{9} =-\frac{2}{3}\\


\boxed{ u_{n} =-\frac{2}{3}*(-3)^{n}=(-1)^{n+1}*2*3^{n-1}} \\

$

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3 years ago

Read 2 more answers

Multiply these binomials using foil method (b+3)(b-9)

sleet_krkn [62]

FOIL stands for first, outer, inner, and last.
So, you multiply the first terms together, the outer terms together, the inner terms together, and then the last terms together.
(b+3)(b-9)
b^2-9b+3b-27 Then simplify
b^2-6b-27

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3 years ago

Is the sequence 0.5, 5, 50, 500, .... an arithmetic sequence? How do you know?

malfutka [58]

No
Arithmetic sequence has terms which decrease or increase by the same amount
for example 3,6,8,12 ....
this sequence is geometric where the terms are obtained by multiplying previous term by 10

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3 years ago

73.59 98.50 <br> what is the difference?

Inessa [10]

Answer:

-35.09 but if your doing it the other way it would be 24.91

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3 years ago