All Answers 356023 Answers

yeah your right

You can go online and read about it here. If your teacher hasn't taught you what a "recursive rule" is, then he or she shouldn't use it in a question such as this one. It doesn't belong here. There are other "rules" or "formula" in financial situations better suited for this question than the "recursive rule." Anyway, read about here and if you don't understand it, talk to your teacher:

http://mathbitsnotebook.com/Algebra1/Functions/FNSequenceFunctionsRecursive.html

How many minutes in 1 hour?? The answer? = 60 minutes!!.

So, your speed =100 mph!.

Thanks for your reply. But in this case, I need a recrusive rule. What would it be?

-4x > 120 divide both sides by -4 and reverse the inequality.

x < - 30

Solve the following system:
{6 x+6 y = 12 | (equation 1)
y-6 x = 23 | (equation 2)
Add equation 1 to equation 2:
{6 x+6 y = 12 | (equation 1)
0 x+7 y = 35 | (equation 2)
Divide equation 1 by 6:
{x+y = 2 | (equation 1)
0 x+7 y = 35 | (equation 2)
Divide equation 2 by 7:
{x+y = 2 | (equation 1)
0 x+y = 5 | (equation 2)
Subtract equation 2 from equation 1:
{x+0 y = -3 | (equation 1)
0 x+y = 5 | (equation 2)
Collect results:
Answer: |x = -3            and            y = 5

1 -  49% = 51% of people use the running shoes

340,000 x 51/100 =173,400 people use the running shoes.

0.09 x 100/100 =9/100

Ron Co. sold sweatshirts for $20 and baseball caps for $10. A total of 154 sweatshirts and baseball caps were sold for total sales of $2,860. How many of each did Ron Co. sell? Check your answer.

Let the number od sweatshirts sold =S

The number od baseball caps =154 - S

20S + 10(154 - S) =2,860, solve for S

S=132 sweatshirts were sold

154 - 132 = 22 baseball caps were sold, so that:

[132 x $20] + [22 x $10] = $2,860.

A recursive rule is generally used for Arithmetic and Geometric series. Here I will use a Time Value of Money(TVM) formula which does the same thing in this case.

1) FV = PV [1 + i ]^n, where FV=future value, PV=present value, i=interest rate per period(as a decimal), n=number of periods.

FV = 1,479 [1 + 0.02 ]^1

FV = 1,479 x 1.02

FV =$ 1,508.58 This is the balance of Kayla's credit card after 1 month's interest was charged. 

2) To hold her balance steady, Kayla must pay $29.58 or about $30 per month, which the interest only @ 2% on $1,479 credit card balance.

3) On this question, I will give you only the answers and the formula to calculate them. It is up to you to verify the answers I give you:

If she pays $65 per month, it will take her 30.66 months to pay the entire credit card balance off.

If she pays $130 per month, it will take her 13.04 months to pay the entire credit card balance off.

The formula used to calculate these results is:

PV=P{[1 + i]^n - 1.[1 + i]^-n} r^-1

1,479 =65 x {[ 1.02^n - 1 ] x 1.02^-n x 0.02^-1}, solve for n.

Hint: You have to use logs to solve for n.

652.65 m/s / 32 s = 20.3953125 m/s^2

21/50

The anwser is 21

Go fuckyourself 68 times you little fuckerface

x+y=8

x-y= 2             just add the two equations   and we get that

2x  = 10         divide both sidesd by 2

x = 5

Put the value back into either equation to find y

5 + y  = 8          and it's obvious that y = 3

So.....the soution is  (x, y)  = ( 5, 3)

0/0=0

6 / (3/7)   =

(6/ 1)   / (3/7)      invert the second fraction amd multiply

(6 / 1 )  * (7 / 3)    swap denominators

(6/3) * (7/1)   

2 * 7 

14

3x - 2x^2 + 5 = 0       rearrange as

2x^2  = 3x + 5          divide both sides b y   2

x^2  =  [  3x + 5 ]  / 2        take both roots

x  = √ [ (3x + 5) / 2 ]      or  x   = - √ [ (3x + 5) / 2 ]

8x^2 - 4x = 18    subtract 18 from both sides

8x^2 - 4x - 18  = 0     divide through by 2

4x^2 - 2x - 9  =  0      this won't factor.....using the quadratic formula, the two solutions are ;

[ 1 + √37 ] / 4     and   [ 1 - √37 ] / 4

Well, the answer is 4.

~Sagan

I'm doing fine. You?

~Sagan

 y=x^2 + 3x -1 and y = 2x + 5 intersect at 2 points. The line joining the two points has the length ksqrt(5). Find the value of k.

Let's find the intersection points....set the functions equal

x^2 + 3x - 1 =  2x + 5     subtract the right side from the left

x^2 + x - 6  =   0      factor

(x - 3)(x +2)  = 0    setting both factors to 0, the x coordinates of the intersection points are 3 and - 2

And using y = 2x + 5, the y intersection points are  2(3) + 5 =  11    and  2(-2) + 5 = 1

So....the intersection points are   (3, 11)  and ( -2, 1)

The distance between these  =  √ [ -2-3)^2 + (11 - 1)^2 ]  = √ [ (-5)^2 + (10)^2 ]  =  √ [ 25 + 100]  = √125 =  √ [ 25 * 5]   = √25  *√ 5   =  5 √ 5

So.....k = 5