4k - 3 = 2k + 5
+ 3 + 3
-------------------------
4k = 2k + 8
-2k - 2k
-------------------------
2k = 8
------ -----
2 2
k = 4
You can also do it this way:
4k - 3 = 2k + 5
- 4k - 4k
------------------------
-3 = -2k + 5
-5 - 5
------------------------
-8 = -2k
----- ------
-2 -2
4 = k
As you can see, you will get the same answer either way you figure it out :)
I don't know if you accidentally forgot to add an image, but the difinition of "estimate" is "to roughly calculate a number"
Like this: an estimate of how many i's are following:
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
There is roughly 30 i's.
Answer:
B. Yes, k=1/2.
Step-by-step explanation:
Answer:
45.55 m
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that the relationship between adjacent and opposite sides of an angle is ...
Tan = Opposite/Adjacent
Then the side opposite the angle of elevation will have length ...
tan(26°) = Opposite/(90 m)
Opposite = (90 m)·tan(26°) ≈ 43.90 m
This is the height of the top of the dam above Scarlett's height, so the total height to the top of the dam is ...
43.90 m + 1.65 m = 45.55 m
Sides:
a = 19 m
b = 25 m
c = 31 m
Angles:
A = 37.7843 °
B = 53.7236 °
C = 88.492 °
Other:
P = 75 m
s = 37.5 m
K = 237.418 m2
r = 6.33114 m
R = 15.5054 m