Answer:
n = 24
Step-by-step explanation:
(n + 18) and 2n are "complementary angles:" they add up to 90°.
Thus, n + 18 + 2n = 90. Combining the n terms results in 3n + 18 = 90.
Then 3n = 72. Dividing both sides by 3 results in n = 24.
n is 24, so n + 18 is 42 and 2n is 48. Note that 42 and 48 add up to 90.
If you raise -4 to the power of 2, you will get -4x-4. So (-4)^2 is the answer.
Answer:
No, and solutions is is not valid.
Step-by-step explanation:
Solving y'(x)= y(x)a|x| by parts yields y(x)=
is the solutions, for y(0)=0 (initial value), it yields
which is not valid. Note a is assumed to be constant.
Answer:
4+n
Step-by-step explanation: