<span>The group that does not receive the experimental treatment in an experiment is the control group. This group is usually compared to the attained experience from the the experimental group (receives the experimental treatment) in order to to determine all the possible effects of the treatment. </span>
Answer: A. Paris is an old city, but some is even more ancient.
Explanation:
A is a compound sentence because the there are two complete sentences in the sentence. “Paris is an old city” is a complete sentence. “Some is even more ancient” is another full sentence. If there are two or more complete sentence separated by a conjunction, then It is a compound sentence. B is not a compound sentence, because there is only one complete sentence.
Answer:
sec(4x) + C
Explanation:
original problem: ∫sec(4x)tan(x)dx
use integration by substitution (u-sub) by setting u = 4x
if u = 4x, then du/dx = 4 and du = 4dx (dx = du/4)
after substitution the integral is ∫sec(u)tan(u)(du/4)
move the 1/4 out of the integral by using the integral Constant rule to form 1/4∫sec(u)tan(u)du
the anti-derivative of sec(u)tan(u) is sec(u), memorize your trigonometric derivatives!!!!
after integration, we get sec(u)/4 + C , now plug u back into the equation
sec(4x) + C is the general solution
It depends,
-during timed tests, such as the SAT or ACT, one does need to remember the passages and information given to answer the questions with deliberate speed to finish on time
-regarding schoolwork, it’s better to read it over twice or thrice just to understand the question and to develop an answer that would best fit it.