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a blind person with glasses?

you'll need to put (  )  around the  -9    (-9)^2 = 81

If I lent you $1 and charged you interest at 100% compounded contiuously, how much money would you owe me in exactly one year?

What has 4 I's but cannot see? O_O

The highest it can be would be  13(card) + 6(die) + 2 (spinner) =21

the LOWEST it can be would be 1(card) + 1 (die) + 1(spinner) = 3

3 thru 21 gives  19 possibilities

Okkkii. Here's my issue. I plug this into the calculator: -9^2-4(1)(8) My answer when I enter it is -113. Am I not entering it correct? 

If you're usin the Quadratic FOrmula   you should get  9 + or -  SQRT 49    NOT -113  

under the sqrt sign should be    b^2 - 4ac   =  (-9)^2 - 4(1)(8)        Didi you get this???

= 81-32 = 49

0.8 m subtracted by 12.7 mm equals how many metres

1m=100cm=1,000mm,

.8 X 1,000=800mm

800 - 12.7=787.3mm

You make this seem so easy!! what grade are you in?! I can see where you've gotten your answer

When you do all of the math operations (in the correct order) , you should come up with this:

1913.21528     in scientific notation   1.91321528 x 10^3

Solve for x:
x^2-9 x+8 = 0

The left hand side factors into a product with two terms:
(x-8) (x-1) = 0

Split into two equations:
x-8 = 0 or x-1 = 0

Add 8 to both sides:
x = 8 or x-1 = 0

Add 1 to both sides:
Answer: |  | x = 8 or x = 1
 

ive gotten that answer, too, :)

1913.2152878819372272

Because

10=5*2 9=3*3

5*3=15 2*3=6

21=15+6

what do you think the answer is? ^.-

i guess im just a tinsy bit confused, I'm stuck at this part.."9 plus or minus a sqaure root of -113, divided by 2.

am i making in since at all? XD. I'm sorry, im really trying! it's just a bit confusing. :'(

Hmmm.... I come up with 8 and 1

a=1   b= -9   c =8

When you get an answer, you can substitute it back into the equation to see if it works !     Try again...you can do it

In this equation:

a=2

b= -8

c= -3       

  SQRT( -(8^2) - 4(2)(-3) )   = Sqrt (64 + 24) = sqrt 88   Discrim = 88     (the part under the sqrt sign in the Quad Formula

Thanks for your help and patience with me :). may i ask how old you are, so i can use my manners and say sir or mam? XD

You are welcome !   Go Girl!

Thank you Mam/Sir :). that really helped me. I will work the rest out and post my answers too see if i got them correct. Do you mind helping me? A highschool junior girl in need of help with this. XD. thank you

when you substitute, you should come up with

(7+ -  sqrt169)/ 4        sqrt169 = 13        NOW can you do it???

(7+13)/4  = 5

(7-13)4    = - 6/4     two values for 'x'

Michael has a jar of pennies that is 1/4 full. When he adds 30 pennies, the jar becomes 1/3 full. When Michael's jar of pennies is 3/4 full, how many pennies will it contain?

Let the number P=pennies when the Jar is 1/4 full. But we have:

1/4P + 30=1/3P

1/3P - 1/4P=30

1/12P=30 multiply both sides by 12

P=360 pennies when the jar is 1/4 full, but since 3/4 is 3 times 1/4, therefore,

360 X 3=1,080 pennie when the jar 3/4 full.

i know how to do it, silly :)! i just get very confused at the end because then i have to simplify it some more, im not good with the "factor tree" :).

Sorry...

a=2

b= -7

c= -15        Forgot the negative signs...