$x^2-2x+17=0\qquad\text{subtract 17 from both sides}\\\\x^2-2x=-17\\\\x^2-2(x)(1)=-17\qquad\text{add}\ 1^2\ \text{to both sides}\\\\x^2-2(x)(1)+1^2=-17+1^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-1)^2=-17+1\\\\(x-1)^2=-16$

$x-1=-4i\ \vee\ x-1=4i\qquad\text{add 1 to both sides}\\\\x=1-4i\ \vee\ x=1+4i$

4 0

3 years ago

Help me out here pleaseeeeeeeee

Vera_Pavlovna [14]

Answer:

1/10

Step-by-step explanation:

Since 5 people share 1/4 gallon, this can be converted into 1/4 times 1/5. This gives 1/20 for everbody. Sheila gives hers to Maria, which means Maria now has 1/20 plus 1/20, which is 2/20, which can be simplified to 1/10.

7 0

3 years ago

How do you evaluate this?

vitfil [10]

$_6C_3=\dfrac{6!}{3!3!}=\dfrac{4\cdot5\cdot6}{2\cdot3}=20$

3 0

3 years ago

Devon writes a number pattern. He starts with 3 and follow the rule "mutiply by me". Which numbers could be in devons pattern. A

Oliga [24]

Answer:

3,6,12.24,48,96

so d is the answer

Step-by-step explanation:

6 0

3 years ago