<span>12(5y+4)
= 12(5y) + 12(4)
= 60y + 48
hope it helps</span>
The ratio of linear dimensions (side lengths) is the square root of the ratio of areas.
√1 : √4 = 1 : 2
The best choice is ...
B. 1:2
9514 1404 393
Answer:
Step-by-step explanation:
The speed against the wind is ...
4680 mi/(8 h) = 585 mi/h
The speed with the wind is ...
5720 mi/(8 h) = 715 mi/h
The speed of the airplane in still air is the average of these speeds:
(585 +715)/2 = 650 mi/h . . . speed in still air
The speed of the wind is the difference between the airplane speed and the speed in the wind:
715 -650 = 65 mi/h . . . speed of the wind
_____
<em>Additional comment</em>
If p and 'a' represent the speeds of the plane and the air, the speeds with and against the wind are ...
p + a = with
p - a = against
If we average these, we get ...
((p +a) +(p -a))/2 = (with + against)/2
p = (with + against)/2 . . . . . . . the formula we used above
Answer:
A=2132
Step-by-step explanation:
Solution
A=a+b/
2h=44+8/
2·82=2132
if g(x) is the reflection of f(x) across the x-axis that would mean g(x)= - f(x)
so that would mean you have to change all the signs of f(x) to negative
Ans: g(x)= - x^2 - 3x - 2
