Dear Dollster444, the sum of angles Y and Z is bigger than Y.
Velocity, in km/hr is the x-axis.
Breaking distance "s" in meters is on the y-axis.
Each curved line represents the different road conditions.
for (a.) find the y-coordinate for each
Dry, curve A. follow the 50km/hr up to the curve and see it corresponds to about 30 m
Wet road, curve B. follow the 50km/hr mark up to see it corresponds to 80 m
Icey, curve T is 140 m
for (b.) they give you the breaking distance on the y-axis to find the corresponding speeds for each road condition. Follow the 60 m mark across to find each x-coordinate,.
Dry curve A, 70 km/hr
Wet curve B, about 45 km/hr
Icey curve T, 30 km/hr
A. To find the volume of this figure you need to multiply the length, width, and height. B and C are just two different ways of writing 5 x 4 x 2, and C means the same thing because PEMDAS would require you to do (5 x 4) + (5 x 4), or 2(5 x 4) because multiplication comes before addition.
63 is your answer
<u>Check:</u>
Multiply: 3 x 2 = 6
Check that it is greater than 60, less than 70: 60 < 63 < 70
~<em>Rise Above the Ordinary</em>