. Sam constructed a shape using polygons as shown in the diagram below. Sam measured the sections of his design so it can become part of the class mural to be painted at the school. What is the area of Sam’s design in square centimeters? +/- .

I think its 167

Step-by-step explanation:

15x10=60

3x5=15

3x5=15

5x10=50

9x3=27

add all that and you get 167

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°