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what is the simplified form of the expression (b/7)^2

Algebra
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|dw:1369532637410:dw|
@satellite73 I need help
please

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Other answers:

The choices are|dw:1369532959983:dw|
\[(\frac{b}{7})^2 = \frac{b^2}{7^2} = \frac{b^2}{49}\]
B
just square top and bottom on similar questions
Thanks so much I have 2 other questions if you guys don't mind
|dw:1369533436214:dw|
Pull out the coefficients and use \[x^ax^b=x^{a+b}\]
I don't know this at all I am a parent trying to give my 2 children some math for the summer so I am asking for the help because I have not done algebra in 25 years
Okay, well do you know what coefficients are?
yes
Okay well then move those out so you get \[ 2*3x^6x^{1/2} \] and use the above formula.
the coefficients are the numbers in front of the variable whenever you are multiplying variables with powers you always must add the powers together
what will the final answer be?
6x^3
\[6x ^{3}\]
You need to add the powers, not multiply. so \[6x^{6+1/2}\]
ok so what is the answer
I will give you the choices
the answer would be\[6x^\frac{ 13 }{ 2 }\]
I have given you the answer, there is only one thing you need to do... Do you know how to add fractions with whole numbers?
that is 6x^13/2
so its \[5x \frac{ 13 }{2 }\]
Guys I feel so old doing this
all you need to do is add the powers which is 6+.5 and you get 6.5 which is 13/2 in fraction form so final answer would be 6x^13/2
the dean at my children school said they were cheating so I have to give this these math test so that can get ready to take the big test to passed algebra
this really means the world to me all the help from you guys
I have another if your up for it!
bring it on
|dw:1369534461113:dw|
on the top part is that C^9
yes
|dw:1369534620249:dw|
ok so this expression can be re-written as \[\frac{ x^9 }{ d^7 }/\frac{ x^14 }{ d^10 }\] which can be written as \[\frac{ x^9 }{ d^7 }*\frac{ d^10 }{ x^14 }\] the equation software on here is complexed but that is d^10 and x^-14
that is not a choice
now what we can do is simplify the expression easier this way and we do this by subtracting the powers of the variable x and subtract the powers of the variable d not finished yet
o sorry
\[\frac{ x^9 }{ x^14 }=\frac{ 1 }{ x^5 }\] andthe other one whic you get \[\frac{ d^10 }{ d^7 }=d^3\] combine and you get \[\frac{ d^3 }{ c^5 }\] sorry the x should have been a C
if you can't see that it is d^3/c^5
This one I tried but I got it wrong is it B
are you guys still with me?
yea my mom called for something but im back
Write the recursive formula for the geometric sequence. a1 = -2 a2 = 8 a3 = -32 A. an = -4 + an-1 B. an = -2 + an-1 C. an = -2 • an-1 D. an = -4 • an-1
do you want me to open this up in a new question so I can give you an award
no im ok but i am looking at the sequences and none of them can i derive from the formulas given
ohh never mind i got it the answer should be D
You rock
I am going to open up another question I want to give you an award for helping me
haha thank you

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