Responder:
<em>a) 1
</em>
<em>b) 12
</em>
<em>c) 3
</em>
<em>d) -1 y 3
</em>
Explicación paso a paso:
Dadas las siguientes ecuaciones;
a) x²-x =0
x² = 0+x
x² = x
x = 1
b) -x²+12x = 0
-x² = -12x
x² = 12x
x = 12
c) 3x² - 9x = 0
Suma 9x a ambos lados
3x²-9x+9x = 0+9x
3x² = 9x
3x = 9
x = 9/3
x = 3
d) x²-2x-3 = 0
x²-3x+x-3 = 0
x(x-3)+1(x-3) = 0
(x+1)(x-3) = 0
x+1 = 0 y x-3 = 0
x = -1 y 3
Answer:
is there a picture?
Step-by-step explanation:
Don’t worry I’m not going to scam you just give me more details about the question and I’ll do it for you
Answer:
First find the amount of tax paid, by subtracting the total amount paid from the cost of the item:
530 - 500 = 30
Now divide the amount of tax paid by the cost of the item:
30 / 500 = 0.06
Multiply by 100:
0.06 * 100 = 6% tax
