$30/ 3 sweatshirts = $10 /shirt
$ 10/shirt * 4 shirts = $40
It would cost $40
Answer:
1. 2<u>+</u>sqrt(102)
2. 5<u>+</u>sqrt(5)
3. No Solution
4. No Solution
Step-by-step explanation:
1. r^2-4r+4-91=7+4 r^2-2r-2r+4 (r-2)^2-91=11 (r-2)^2=102 r-2=<u>+</u>sqrt(102)
1. x^2-10x+25+26=8+25 x^2-5x-5x+25 (x-5)^2+26=33 (x-5)^2=5 x-5=<u>+</u>sqrt(5)
1. k^2-4k+4+1=-5+4 k^2-2k-2k+4 (k-2)^2+1=-1 (r-2)^2=-2 No Solution
1. b^2+2b+1=-20+1 b^2+b+b+1 (b+1)^2=-19 No Solution
Answer:
Step-by-step explanation:(-1.5,3) and (0,3)
Answer:
Roots are x=6 and - 4
Step-by-step explanation:
2(x-6)(x+4)=0
(x-6)=0 or (x+4)=0
x=6 or x=-4, their multiplicities is 1
Answer:

Step-by-step explanation:
Given
---- 
--- 

Required
The coordinates of P
This is calculated as:
![P = (\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n}]](https://tex.z-dn.net/?f=P%20%3D%20%28%5Cfrac%7Bmx_2%2Bnx_1%7D%7Bm%2Bn%7D%2C%5Cfrac%7Bmy_2%2Bny_1%7D%7Bm%2Bn%7D%5D)
So:


