Answer:
In order, they would be:
-4.45 min, -1.8 min, -(1 + 2/3) min, -1.375 min
Step-by-step explanation:
Enjoy :)
I've drawn a triangle to represent the journey (see attached.
The angle from Home to Victim to Hospital is:
a =

Using the cos rule, we can solve for the length x:

Using the cos rule, we can solve for angle b:

So the bearing the helicopter has to travel is:
270 - 76.1 =
<u>
193.9 degrees (1 dp)</u>
And the distance it travels is
<u>31.2 km (1 dp)</u>
Answer:
15, 6 and - 3
Step-by-step explanation:
Given x - y = 3 , then
(a)
5(x - y) = 5(3) = 15
(b)
2x - 2y ← factor out 2 from each term
= 2(x - y) = 2(3) = 6
(c)
y - x ← factor out - 1 from each term
= - 1(x - y) = - 1(3) = - 3
Answer:
x > 6
Step-by-step explanation:
6x + 2x > 6 (x + 2)
8x > 6 (x + 2)
8x > 6x + 12
<u>-6x -6x</u>
2x/2 > 12/2
x > 6