3 years ago

Factor completely 2n^2+ 5n + 2

Mathematics

1 answer:

rosijanka [135]3 years ago

5 0

Answer:

(2n+1)(n+2)

Step-by-step explanation:

Use basic factor pairs, then figure out the two 2s in the factor pairs add with the one to be five. Then just make the answer above.

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What is the 6th term of the geometric sequence f(1) = 12, f(n) = -2/3f(n-1)

Troyanec [42]

$\bf \begin{array}{ccll}
\stackrel{n^{th}}{term}&value\\\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\\\
1&12\\\\
2&-\frac{2}{3}f(2-1)\\\\
&-\frac{2}{3}f(1)\\\\
&-\frac{2}{3}(12)\\\\
&-8\\\\
3&-\frac{2}{3}f(3-1)\\\\
&-\frac{2}{3}f(2)\\\\
&-\frac{2}{3}(-8)\\\\
&\frac{16}{3}
\end{array}$

$\bf \begin{array}{cccl}
\qquad &\qquad \\
4&-\frac{2}{3}f(4-1)\\\\
&-\frac{2}{3}f(3)\\\\
&-\frac{2}{3}\left( \frac{16}{3} \right)\\\\
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5&-\frac{2}{3}f(5-1)\\\\
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&-\frac{2}{3}\left( -\frac{32}{9} \right)\\\\
&\frac{64}{27}\\\\
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\end{array}$

5 0

3 years ago

What is the value of x in the figure? Enter your answer in the box.<br> HELP IMMEDIATELY!

Anit [1.1K]

Answer:

Step-by-step explanation:

145 = 2x + 15

2x = 130

x = 65 (ANS)

7 0

3 years ago

Read 2 more answers