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thx!

78  =   15*5  +  3

78

It has to end in 3 or 8 so it is 78

I get 6

(-15)  is a  multiple  of 15

(21)  is a multiple  of 21

So

-15  + 21  =  

6

Anyone  have a different (better) answer   ???

Ummm.. what does that mean?

Ok, i fixed the question. If anyone could figure this out, that would be great!

y =  ax^2   +  k

If  the  vertexx is  (0, -4),  then  k   = -4

And  the  point (3,7)  is on the parbola implies that

7 =  a (3)^2  -  4     add 4  to  both  sides

11  = a (9)    divide both sides  by  9

11/9  = a

So.....the  equation is

y = (11/9)x^2  -  4

yep the Q guy is right

Find a formula for the quadratic function whose graph has its vertex at (1,4) and its y-intercept at y-6.

Sorry, the numbers are 15, 21(in order)

multiple of what? they are blnk.

a) There are 7 letters, t, e, l, p, h, o, and n. We dn't want e so we have 6 letters. There are 15 ways to leave two letters out, so our answer is 15.

b) we now want 3 letters from the 6 letters. There are 20 ways to get it.

c) we want 4 letters from 7 letters. there ar 35 possibilities.

We have 8+13=21 ounces of jelly beans. One pound is 16 ounces, so the next integer after 16 is 32. 32-21=11. 

We need 11 ounces of white jelly beans.

thanks!

9

The smallest multiple of six larger than -25 is -24, which is -4*6. On th opposite side it is 24, which is 4*6. So we can do six times any integer between -4 and 4 inclusive, to get 9 numbers: -4, -3, -2, -1, 0, 1, 2, 3, and 4.

Those are combinations. You need permutations which are: 4 x 4 = 16 

THANKS!

Diagonal length= 2*side length 10sqrt2=sqrt200=2sqrt50

each side=sqrt50

sqrt50*sqrt50=50

The side of  the  square  =  diagonal / √2  =  [10√2] / √2 =   10 cm

So....the area  =  side^2  =   (10cm)^2  = 100  cm^2

(2, 2), (2, 4), (2, 6), (2, 7), (4, 4), (4, 6), (4, 7), (6, 6), (6, 7), (7, 7), Total = 10