It honestly depends on the subject/level, and there is no way to predict different marking schemes, but I would tend to stick to the SI units as used in Physics. So, metres, seconds, kgs etc (you can find them all online).
<span>Solving for a:
</span>2a
+
-bx+5 = 4
+
-c
+2x+5
Subtract 5 and
from both sides:
2a
-bx=4
-c
+2x
Add bx to both sides:
2a
=4
-c
+2x+bx
Divide both sides by 2
:
a = 4
-c
+2x+bx/2
Simplify:
a = 4
-cx+2+b/2
<span>Solving for b:
</span>
Begin by doing the same as for a by subtracting 5 and
from both sides. Again add bx to both sides to avoid having to work with negatives. You should now have 2a
=4
-c
+2x+bx.
Subtract 4
and 2x from both sides as well as adding c
to both sides:
2a
-4
+c
-2x=bx
Divide both sides by x:
b = 2a
-4
+c
-2x/x
Simplify:
b = 2a
-4
+cx-2
Solve for c:
Begin again by subtracting 5 and
from both sides. Next add c
to both sides to again avoid working with negatives:
2a
-bx+c
=4
+2x
Subtract 2a
and add bx to both sides:
c
=4
+2x-2a
+bx
Divide both sides by
:
c = 4
+2x-2a
+bx/
Simplify:
c = 4
+2-2a
+b/x
Answer:
B
Step-by-step explanation:
Because the hypotenuse doesn't really get called a leg since it has a proper name.
Answer:
As the coin has only head and tail , each flip has probability of getting head as 1/2
246 flips has head probability = 1/2 × 246 = 223