P = 2(L + W)
P = 84
L = 35
now we sub
84 = 2(35 + W)
84 = 70 + 2W
84 - 70 = 2W
14 = 2W
14/2 = W
7 = W....so the width is 7 cm
Answer:
a ≈ 11.3, C ≈ 24.2, B ≈ 103.8
Step-by-step explanation:
The information A = 52°, b = 14, c = 6 lends itself to solution using the Law of Cosines: a^2 = b^2 + c^2 - 2bc cos A.
Here, a^2 = 14^2 + 6^2 - 2(14)(6) cos 52 degrees, or
= 196 + 36 - 168 (0.616)
= 120.57
Taking the positive square root of this results in a = 11.3.
This corresponds to the second answer choice: a ≈ 11.3, C ≈ 24.2, B ≈ 103.8
Answer:
-0.38
Step-by-step explanation:
0.6-(0.7)(1.4)
0.6-0.98
-0.38
