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The triangle is a right triangle, 9, 12 & 15.
The triangle's area = b*h/2 = 9*12/2 = 54 sq meters each end.
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The 3 rectangles are 10 by 9, 12 & 15
Area of the 3 = 10*(9 + 12 + 15) = 360 sq meters
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Total area = 360 + 2*54
= 468 sq meters
-3(x - 3) > 5 - 5x
use the distributive property
-3x + 9 > 5 - 5x
subtract 5 from both sides
-3x + 4 > -5x
add -3x to both sides
4 > -2x
divide both sides by -2 to isolate x
x > -2
The correct answer is D. x > -2.
I believe if i am getting your context right, the answer is 0.64
A) is right
b) just subtract ljm and kjm so 145-48 = 92°
c) 9x-25=7x+7 so here you put npq=mpq+mpn and you combine terms so it's now 2x=32 then divide by 2 on both sides and x= 16
now you just plug it into 3x-5 and you get 43°
