2 years ago

Factor the expression: 625t^5-1715t^2 Please show steps!

Mathematics

1 answer:

NeX [460]2 years ago

5 0

Answer:

5 $t^{2}$ (5t-7)(25 $t^{2}$ +35t+49)

Step-by-step explanation:

You might be interested in

How to write 16,208.59 in word form

IrinaK [193]

Answer:

Sixteen thousand, two hundred eight and fifty-nine hundredths.

I hope this helps! :)

8 0

3 years ago

Determine the sum of the first 9 terms in the geometric series where r= -0.25 and a1= 256.

Damm [24]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio}\\ ----------\\ r=-0.25\\ a_1=256\\ n=9 \end{cases}$

$\bf S_9=256\left(\cfrac{1-(-0.25)^9}{1-(-0.25)} \right)\implies S_9=256\left( \cfrac{1+0.25^9}{1+0.25} \right) \\\\\\ S_9=256\left( \cfrac{52429}{65536}\right)\implies S_9=\cfrac{52429}{256}\implies S_9=204.80078125$