Melinda made a scale model of an airplane. In the scale model, the length of the wingspan is 8 inches. The length of the wingspan of the actual airplane is 56 feet in length. Which scale did melinda usr to create the scale model of the airplane?

1 inch =7 feet  

Step-by-step explanation:

Scale factor =

The length of the wingspan in model is 8 inches.

The length of the wingspan of the actual airplane is 56 feet in length.

Scale factor =

i.e. 1 inch of model gives 7 actual feet.

Required Scale: 1 inch=7 feet  

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c