Answer:
(x² - 3)(x² + 3)
Step-by-step explanation:
- 9 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , thus
- 9
= (x² )² - 3²
= (x² - 3)(x² + 3)
Answer:
A. 15
Step-by-step explanation:
Answer:

Step-by-step explanation:
For this question, set u = arctan(x). This would be the easiest way because the derivative of arctan(x) is
which is what we have. Before setting u, always look at the question and think about possible derivatives.

Next, plug in u and du.
(rearranging)


Substitute arctan(x) back in for u and add +C.

Step-by-step explanation:
a)
well, it is kind of written already :
228 miles and 6 gallons.
so, miles/gallon = 228/6 = 38 miles/gallon.
b)
it is not mentioned, but I guess we have to assume that he got the same miles/gallon ratio on this trip as well.
so, again
38 miles/gallon
and he used 9 gallons.
so, he drove 38×9 = 342 miles
Answer:
The answer is 0.068.
Step-by-step explanation:
0.17 x 0.4 is 0.068