Follow PEMDAS:
First, distribute 3 to all terms within the parenthesis
3(4x) = 12x
3(5) = 15
12x + 15 + 2
Simplify. Combine like terms
12x + (15 + 2)
12x + 17
12x + 17 is your answer
hope this helps
Answer:
x=6.86°
firstly set them equal
to each other
(7x+24)=72°
subract 24 from both sides:
7x=48°
divide both sides by 7 :
x=6.857.....
this can be rounded to :
x=6.86°
The formula for the volume of a rectangular prism is: l*w*h (length*width*height)
Since the Base area of a 3D figure is always the length times width of the bottom face, all we need to do to find the volume is multiply the Base area by the height.
173.6 (9) = 1562.4 cubic cm
Θ=20
sinθm=1/2sinθb
Θ=47
sin20 mirror=1/2sin47bench
