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
The answer is 280,000 rounded to the nearest ten thousand.
The answer is 2 for 5.80 is cheaper for buying 30 t-shirts.
Answer:
I believe its D
Step-by-step explanation:
because the Xs do not repeat but on the other answer choices , they do .
Hope I could help -
Sleepy~
Answer: Q and W are similar but not congruent
Step-by-step explanation:
From the given graph, The length of rectangle Q= 5 units
and the width of rectangle Q=2 units
The length of rectangle S= 5 units
and the width of rectangle S=2 units
Since the dimensions of rectangle Q is equals to the corresponding dimensions of the rectangle S and since all the angles of rectangle are right angles.
therefore, Q and S are similar and congruent as they have the same shape and the same size.
But The length of rectangle W= 10 units = 2 times length of Q
and the width of rectangle W=4 units= 2 times width of Q
Thus the dimensions of W is proportional to dimensions of Q.
Thus, Q and W are similar but not congruent.
