Answer: It's the first option
Step-by-step explanation: positive 2x because it is going up 2, 1 to the right (rise/run) and +5 because it touches the y-axis at 5. -2x because it's going down 2, 1 right (rise, in this case negative/run) and -2 because it touches the y-axis at -2.
In the equation 3.4a = 57.8, a is equal to: 17.
33 / 84 ( these digits divide by 3 first we get)
11 / 28 ( after this there is no number from which we can divide these numbers again so)
11 / 28 is the final answer
Answer:
B
Step-by-step explanation:
2 walls are 30 x 9 and 2 walls are 20 x 9 and there are 4 units
30 x 9 = 270, 20 x 9 = 180
4(2)(270) + 4(2)(180) = 3600, so the answer is B
Answer:
Part a) The area of the actual floor is 
Part b) The ratio of the area in the drawing to the actual area is 
Step-by-step explanation:
we know that
The scale drawing is 
step 1
Find the dimensions of the square on a scale drawing
The area of a square is equal to

where
b is the length side of the square

so


step 2
Find the dimensions of the actual floor
Divide the length of the floor on the drawing by the scale drawing

step 3
Find the area of the actual floor
The area of a square is equal to

substitute

step 4
Find the ratio of the area in the drawing to the actual area

Simplify
Divide by 64 both numerator and denominator
