Answer:
1.62m^2
Step-by-step explanation:
From the problem statement, the scale of the drawing is
1cm:45cm (meaning that 1cm on the drawing represent 45cm in reality ofr actual)
first,let us convert 20cm to the actual drawing
20cm in actual will give 20*45=900cm
to meters =900/100= 0.9m
Secondly let us convert 40cm to the actual drawing
20cm in actual will give 40*45=1800cm
to meters =1800/1000= 1.8m
Now we can calculate the actual area in meters we have
area= 0.9*1.8
area= 1.62m^2
Answer: y = -4/3x + 15
3y = 45 - 4x (subtract 4x from both sides)
y = -4/3x + 15 (divide both sides by 3)
You pretty much just have to multiply the numbers and make sure to have the variables after the numbers. You don't really multiply the variables, just put them together, if that makes sense,
40x² + 12x²y²
Answer:
see below
Step-by-step explanation:
-9x + 4 < 40
-9x < 36
x > -4 (Dividing or multiplying an inequality by a negative number flips the sign)
