Answer:

Step-by-step explanation:
just multiply first paranthesis with second one. They are each 1 unit as there are no addition or subtraction inside the parantehsis so DON'T distribute. It's more simple.
(12ab^4c)*(5a)
now multiply these 2 paranthesis, again just 2 units to multiple.
60a^2b^4c
Answer:
x = 10
Step-by-step explanation:
cos 45 = 5
/ x
x = 5
/ cos 45, cos 45 =
/ 2
x = 10
Answer:
0.583
Step-by-step explanation:
Use a caluclator
Answer:
A. x = 11
Step-by-step explanation:
so, the angle D corresponds to angle T.
therefore, the side BD corresponds to RT.
and CD to ST.
since both triangles are similar, they must have the same angles, and all corresponding sides and other lengths must have the same scaling factor.
so,
RT × f = BD
and the same f must then apply to
ST × f = CD
21 × f = 98
f = 98/21 = 14/3 = 4.666666666...
33 × 14/3 = 15x - 11
11 × 14 = 15x - 11
154 = 15x - 11
15x = 165
x = 11
4 times 8 is what equals 32