Given
a) x+x+x+x+x+x
b) 30y-12
Find
Equivalent expressions
Explanation
a) x + x + x + x + x + x = 6x
b) 30y-12 = 6(5y-2)
or
Final Answer
a) the equivalent expression is 6x .
b) the equivalent expression is
Answer:
65x
Step-by-step explanation:
Observe que estos son terminos similares... por lo que podemos simplemente sumarlos y restarlos. Entonces obtenemos:
25x + 12x + 31x - 8x + 5x
= 37x + 31x - 8x + 5x
= 68x - 8x + 5x
= 60x + 5x
= 65x
Answer:
C'(-2,4)
Step-by-step explanation:
C(-2,-4) , reflected across x-axis ---> C'(-2,4)
The last one, d, 2/3 < g < 2
Answer:
(a) 3, 5 and 6
Step-by-step explanation:
In the experiment, 43 are to be given a gel that contains the tooth-whitening chemicals while the remaining 42 are to be given a placebo. Therefore, a placebo is used.
The 43 that will receive the gel are to be selected randomly.
After the experiment, the whiteness of the two groups will be compared to see the effect of the gel.
Therefore for the experiment to be completely random, 3, 5, and 6 apply.
(b)
For the experiment to be double-blind, the researchers who will evaluate the whiteness and interact with the subjects, and the subjects would not know which subjects received either the whitening gel or the placebo.
