Answer:
x=150
Step-by-step explanation:
Since f is flat, that means that the total degrees will equal 180°.
Therefore, because of the 60° and (x-30)° angles being supplementary angles,
will equal 180.

I would say infinitely many
Answer:
Stage crewmember's calculation is incorrect
Correct = 1/16x 1/16y
Step-by-step explanation:
Given that:
Dimension of backdrop : 20 feets long ; 16 feets high
Actual dimension of building : 320 feets long ; 256 feets high
The correct scale factor can be obtained thus :
Ratio of backdrop dimension to the actual dimension of building
Length : 20 / 320 = 1 /16
Height : 16 / 256 = 1/16
Hence, stage crewmember's calculation of (1/20x ; 1/20y) is incorrect.
A would be your answer
Hope this helps !!
Answer:
129.6
Step-by-step explanation:
A= 1/2 bh
=7.8 x 9 x 1/2
= 35.1
A= 1/2 bh
=7x 9 x 1/2
= 31.5
31.5 x 3
= 94.5
<u>Add</u>
<u>35.1 + 94.5 = 129.6</u>