Answer:
2a^2
Step-by-step explanation:
I can't really explain the GCF/LCM type problems ,my sincere apologies
The lowest score of a negatively skewed distribution is the mean.
A distribution can be symmetrical, negatively skewed or positively skewed.
For a symmetrical distribution, the mean, the median and the mode are all equal.
For a negatively skewed distribution, the mean is the lowest value, followed by the median and then the mode is the highest value.
For a positively skewed distribution, the mean is the highest value, followed by the median and the the mode is the lowest value.
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
Let a =70° and b= 10° (and a-b=70-10 =60)
We have the following trigonometric identity:
sin(a-b) = sin(a).cos(b)-sin(b).cos(a) OR:
sin(70-10) = sin70.cos10 - sin10.cos70
But sin(70-10) = sin(60) and we know that sin(60°) =(√3)/2