Answer:
Step-by-step explanation:
Hello
Simplify :
9 (1 - r) + 3r
= 9 - 9r + 3r
= 9 - 6r
= 3(3 - 2r)
Answer:
4x
+
5
y
=
15
Step-by-step explanation:
Answer:
+120/169 or -120/169
Step-by-step explanation:
- let
where, alpha is some angle that satisfies the assumed condition.
- so,
[ taking cos to the other side or applying cos on both sides]
- now, substitute this in the given expression
as sin =
[by general trigonometry formula: ]
so if , we can get sin from the above formula as + or - 12/13
(because, after taking square root on both sides we keep + or -]
- as, sin
[by general trigonometry formula]
- here, now
so, the final value can be 120/169 or -120/169.
Answer:
obviously the answer is 72
Answer:
2.8
Step-by-step explanation:
You have to divide 0.42 by 15%.
0.42 / 15% = 2.8