Answer:
21.44
Step-by-step explanation:
50% = 1/2
1/2 of 42.88
42.88 ÷ 2
21.44
Hope this helps :)
So y=12x. All you need to do is plugging in x=3;
y = 12(3) = 36
So answer is B.
Answer:
The perimeter of the drawing: 18 inches
The perimeter of the actual flower bed: 540 inches
If they were multiplied by 24 instead the actual perimeter of the flower bed would be 432 inches. The effect is that it decreases by 108 inches.
Step-by-step explanation:
Taking the 4 inches and 5 inches and multiplying them by 30 gets 120 by 150. If its a rectangle we will add together all 4 sides to get the perimeter of the actual one.
The anwer is 3. The volume of a cube is lwh. 3 x 3 x 3 = 27
The picture is not clear. let me assume
y = (x^4)ln(x^3)
product rule :
d f(x)g(x) = f(x) dg(x) + g(x) df(x)
dy/dx = (x^4)d[ln(x^3)/dx] + d[(x^4)/dx] ln(x^3)
= (x^4)d[ln(x^3)/dx] + 4(x^3) ln(x^3)
look at d[ln(x^3)/dx]
d[ln(x^3)/dx]
= d[ln(x^3)/dx][d(x^3)/d(x^3)]
= d[ln(x^3)/d(x^3)][d(x^3)/dx]
= [1/(x^3)][3x^2] = 3/x
... chain rule (in detail)
end up with
dy/dx = (x^4)[3/x] + 4(x^3) ln(x^3)
= x^3[3 + 4ln(x^3)]
