Answer:
f(n) = -n^2 -3n +5
Step-by-step explanation:
Suppose the formula is ...
f(n) = an^2 +bn +c
Then we have ...
f(1) = 1 = a(1^2) +b(1) +c
f(2) = -5 = a(2^2) +b(2) +c
f(3) = -13 = a(3^2) +b(3) +c
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Here's a way to solve these equations.
Subtract the first equation from the second:
-6 = 3a +b . . . . . 4th equation
Subtract the second equation from the third:
-8 = 5a +b . . . . . 5th equation
Subtract the fourth equation from the fifth:
-2 = 2a
a = -1
Then substituting into the 4th equation to find b, we have ...
-6 = 3(-1) +b
-3 = b
and ...
1 = -1 +(-3) +c . . . . . substituting "a" and "b" into the first equation
5 = c
The formula is ...
f(n) = -n^2 -3n +5
Answer:
5
Step-by-step explanation:
f(-1)= -3(-1)³+2(-1)²
= -3(-1)+2(1)
= 3+2
=5
a term related to machine translation<span> services for mobile devices (</span>mobile translation<span>). Image translation refers to an additional service provided by mobile translation applications where the user can take a photo of some printed text (menu list, road sign, document etc.), apply </span>optical character recognition<span> (OCR) technology to it to extract any text contained in the image, and then have this text translated into a language of their choice.</span>
Answer:
before the sale, each poster was $8.49
Step-by-step explanation:
27.36 divided by 4 = 6.84 + 1.65 = 849
<span>square pyramid</span>
V=b² h/3------------ >12=9*h/3------------ >h=12/3---- >h=4
the answer is h=4 feet
