Question

algebra 2 help?! please help mee. i'll fan & give a medal.

Answer 1

Two Martians, Splott and Fizzle, invite you to pilot their giant robot. The heat generated by one leg mechanism is represented by the function f(x) = 3x2 + 20. The heat generated by one arm mechanism is represented by g(x) = 3x2 + 4x - 5. Describe to Splott and Fizzle, using complete sentences, which of the operations, addition, subtraction, multiplication, and division, will result in the largest degree function, and which operation will result in the smallest degree function.

Answer 2

:)

Answer 3

Alright
Let h(x) be the result of any operation between f(x) and g(x)
What is h(x) when you do f(x) + g(x)?
What is the degree of h(x)?

Answer 4

idk?:( thats why i need hekp.

Answer 5

help*

Answer 6

okay ill tell you for this one then ill explain later..
the degree would be 2

Answer 7

so its h(2) ?

Answer 8

What is the degree when you subtract the two functions?
do you know how t do that one

Answer 9

or 2 = h(2) ?

Answer 10

*to


not really we have to go through all of it to figure that out so not yet

Answer 11

What is the degree when you subtract the two functions?
the answer for this would be 1

Answer 12

same for division

Answer 13

okayyy. can you write it all out for me? i dont get it.
so 1 equals what? lol im lost.

Answer 14

we are finding the degrees using subtraction,division,addition etc
to find them were subtracting or watever it is the 2 functions

Answer 15

do you understand that or are yu still lost

Answer 16

okay! i understand. keep going.

Answer 17

the degree when you subtract the two functions = 1
the degree when you divide the 2 functions =1
the degree when you multiply the 2 functions = 4

the operation that gives you the highest degree is multiplication
and the lowest would be subtraction and division

Answer 18

YAYYY I LOVE YOUU SO MUCHH THANKSS!

Answer 19

lol thank yaa and your welcome ;)

Answer 20

any more help

Answer 21

yes!

Answer 22

Mr. Jones is asked to write two types of radical equations for the SAT Prep Course. The first solution to the radical equation must be extraneous. The second solution to the radical equation must be non-extraneous. Write one equation where the solution is extraneous. Then write a second equation where the solution is non-extraneous. Using complete sentences, explain each step when solving to justify your examples.

Answer 23

@abdela25

Answer 24

okay im working on it

Answer 25

THANKS:)

Answer 26

What is the first request of the problem statement?

"The first solution to the radical equation must be extraneous."

That is a quick example of a radical equation with an extraneous solution.

Answer 27

Can you write a radical equation with both extraneous and non-extraneous solutions?

Answer 28

@kendallnicole

Answer 29

Is that this \[1=\sqrt{x/3-2}\]

Answer 30

and i will check it for you right now too

Answer 31

hello?

Answer 32

yesss

Answer 33

keep goingggg.

Answer 34

okay

Answer 35

\[3=\sqrt{x/3}\]

Answer 36

9=x/3
x=27
checking...
\[3=\sqrt{27/3}\]

Answer 37

\[3=\sqrt{9}\]

Answer 38

which means... 3=3
that is a non-extraneous solution ;)

Answer 39

Anything like this will do...
\[x=\sqrt{something}\] that leads to "Something" less than zero.

Answer 40

@kendallnicole

Answer 41

can you tell me an extrenous solution?

Answer 42

thats impossible in a problem like this as you can see after all the wrok and double checking we only got a non-extrenous solution

Answer 43

@abdela25

Answer 44

yeah? wassup
this is how the problem will go

Answer 45

but like, just any other extreneous equation. because it says that i need one

Answer 46

okay wait ill see

Answer 47

thankksss

Answer 48

If you changed it to +2 you would have a bad one. (extreneous)
Anything like this will do...
\[x=\sqrt{something}\] that leads to "Something" less than zero. or more simplified....
x< 0

Answer 49

so like could you give me an example?

Answer 50

okay

Answer 51

hold on let me make on up

Answer 52

you think if i get you a video that explains all of it would be good

Answer 53

@kendallnicole

Answer 54

its fine i just need an example!

Answer 55

https://www.khanacademy.org/math/algebra/exponent-equations/radical_equations/v/extraneous-solutions-to-radical-equations

okay cool watch this vvideo explains everything ! and gives more than 1 example :)

Answer 56

The best way to understand what extraneous roots are is to go through a problem where you get one. The following is a solution to a problem that I did previously which dealt with extraneous roots:
\[\sqrt{2y+7} +4=y\]
First, get the radical expression alone on one side of the equation:
\[\sqrt{2y+7} =y-4\]
Now, square both sides of the equation to get rid of the radical:
\[2y+7=(y-4)^{2}\]
Simplify the right hand side:
\[2y+7=y ^{2} -8y+16\]
Combine like terms and equate to zero:
\[y ^{2} -10y+9=0\]
Factor the expression:
\[(y-9)\times (y-1) =0\]
Equate each factor to zero, and solve:
\[y=9\] AND \[y=1\]
Now, this part is important...you need to plug these answers back in to
the original equation to be sure they are not "extraneous." An extraneous
root may be mathematically correct, but it is not the true answer. If you
plug y=1 back into the original equation, you will see that the equation
DOES NOT hold true. Hence, this is an extraneous root. If you plug y=9 back
into the original equation, you will see that the equation DOES hold true,
so that one is your answer.

@kendallnicole

Answer 57

sorry its all long but math is long lol
my head hurts now

Answer 58

lol thank you.

Answer 59

yep your welcome anytime love