Answer:
B
Step-by-step explanation:
3 ( w + 9 )
3 × w + 3 × 9
<u><em>3w + 27</em></u>
Hope this helps
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Please enclose fractions such as 8/7 inside parentheses:
<span>(8/7)x^3+x^4+6x+1
Next, arrange these four terms in order of power of x:
</span>x^4 + (8/7)x^3+ 6x+1 This is the standard form you wanted.
Answer: 4 x (12 - 8)
Step-by-step explanation:
the word difference really means exactly what it is saying. it is the quantity difference between two numbers. like, if someone would say, "what's the difference between 4 and 2?' then you would just subtract 2 from 4 to find the difference between the two numbers.
so, we now know that we are going to be subtracting 8 from 12.
plus, it tells us to show 4 times 12 - 8. that means that we will be multiplying (12 - 8) by 4.
so, our only viable option is 4 x (12 - 8).
We must find the common ratio first...
Since a(n)=ar^(n-1)
-3359232=12r^7
-279936=r^7
-279936^(1/7)=r
-6=r
So our geometric sequence is:
a(n)=12(-6)^(n-1)
And the sum of a geometric sequence is:
s(n)=a(1-r^n)/(1-r), since a=12, r=-6, and n=8 we have:
s(8)=12(1-(-6)^8)/(1--6)
s(8)=12(1-(-6)^8)/7
s(8)= -2,879,340
