Answer:
cos3x
Step-by-step explanation:
y" - y' + 9y = 3 sin 3x


here
will be replaced by
where
is coefficient of x




y=cos3x
hence Particular solution is cos3x
Answer:
4y−5x=−8
Step 1: Add -4y to both sides.
−5x+4y+−4y=−8+−4y
−5x=−4y−8
Step 2: Divide both sides by -5.
−5x
−5
=
−4y−8
−5
x=
4
5
y+
8
5
Answer:
x=
4
5
y+
8
5
Step-by-step explanation:
The will be (3x - 2) x (3x + 2) x (9x2 + 4)
9514 1404 393
Answer:
88 square inches
Step-by-step explanation:
The figure can be divided into two congruent trapezoids, each with bases 7 and 4 inches, and height 8 inches. Then the total area is ...
A = 2(1/2)(b1 +b2)h
A = (7 +4)(8) = 88 . . . . square inches
Answer:
3600 ft
Step-by-step explanation:
because each inch in the model is 300 feet in real life, you do 12 times 300 ft and you get 3600 ft