Question

Please help
Evaluate the polynomial function for the given values of the variable
P(s)=2sᶟ-9s-10 P(1/2) and P(0)

Answer 1

my pc froze had to restart website

Answer 2

at 1/2 it is -57/4
at 0 it is -10

Answer 3

need step by step explanations
how did you get -57/4

Answer 4

P(1/2) = 2(1/2)^3 - 9(1/2) - 10
P(1/2) = -57/4

P(0) = -10

Answer 5

is that good enough?

Answer 6

2(1/2)^3=1/4
9(1/2)=9/2
1/4-9/2-10
this is where i am stuck what do i do to get the correct answer

Answer 7

okay so
\[\frac{1}{4}-\frac{18}{4}- \frac{40}{4}= -\frac{1-18-40}{4} = \frac{57}{4}\]

Answer 8

How do you do fractions chiarocuro?

Answer 9

what do you mean?

Answer 10

to add and subtract, you have to find a common denominator (preferably a LEAST common denominator) and change the fraction accordingly. Then add and subtract.
to multiply, you just multiply numerator by numerator and denominator by denominator
to divide, flip (the reciprocal) the fraction right after the dividing sign and then multiply

Answer 11

lol you're silly. I mean how make fractions come out in equations? like you did there.

Answer 12

lololols oops
sorry
in the equation editor type \frac{numer}{deno}
replacing numer and deno for numbers
cheers

Answer 13

ok thanks. So is equations like latex? That's what I use in latex to do fractions.

Answer 14

I'm never touched latex, so i couldn't tell you :x

Answer 15

i need fractions for dummies
p(1/4)=4(1/4)^3+9(1/4)-3
please explain this problem step by step i can not do fractions even the basic it nvr made sense to me

Answer 16

\[4*\frac{1}{4}*\frac{1}{4}*\frac{1}{4} + \frac{9}{4} - 3\]
\[\frac{1}{4}*\frac{1}{4} + \frac{9}{4} - 3\]
\[\frac{1 * 1}{4 * 4} + \frac{9}{4} - 3\]
\[\frac{1}{16} + \frac{9}{4} - 3\]
\[\frac{1}{16} + \frac{9 * 4}{4 * 4} - 3\]
\[\frac{1}{16} +\frac{36}{16} - 3\]
\[\frac{37}{16} - \frac{3}{1}\]
\[\frac{37}{16} - \frac{3 * 16}{1 * 16}\]
\[\frac{37}{16} - \frac{48}{16}\]
\[\frac{-11}{16}\]

sorry that took so long...but that was a lot of equations :P

Answer 17

mathlab says thats wrong its -83/16

Answer 18

nope i used my calculator to check, i'm right.
you can use matlab, but you don't know how to do fractions? please don't take offense! i'm just curious

Answer 19

we do our homework in mathlab and i know how to do fractions just forgot exactly how its been so long

Answer 20

copy this into matlab
4(1/4)^3+9(1/4)-3
^-- thats the line you gave me
it should give you -.6875, which is -11/16

Answer 21

we might be talking about different things then nvm
i'm talking about matlab
you're talking about mathlab
so nvm :P
but i'm sure i'm right, as long as you gave me the right question
but since you're trying to understand how to do fraction, just see if you can follow along the steps. because you want to know how to do it, not the answer

Answer 22

right

Answer 23

its a polynomial function given values of the variables p(-4) & p(1/4)
P(r)=4rᶟ-9r-3 P(-4) and P(1/4)

Answer 24

?

Answer 25

whoa...you still on this question? did you sleep?!?! O_O