Answer:
y=2.6
Step-by-step explanation:
y/4=1.3/2
cross product
4*1.3=y*2
5.2=2y
y=5.2/2
y=2.6
Answer: 64 m^3
Step-by-step explanation:
Formula for the volume of a cube is b*h*w
Substitute values: 4*4*4 (or 4^3)
Calculate: 64
The area under the speed curve tells you how much distance the vehicle covers.
The distance for first 30 s corresponds to the area of a rectangle with height <em>k</em> m/s and length 30 s, or
(<em>k</em> m/s) (30 s) = 30<em>k</em> m
The distance for the last 20 s corresponds to the area of triangle with height <em>k</em> m/s and length 20 s, or
1/2 (<em>k</em> m/s) (20 s) = 10<em>k</em> m
If the total distance traveled was 1.7 km = 1700 m, then
30<em>k</em> + 10<em>k</em> = 1700
40<em>k</em> = 1700
<em>k</em> = 42.5
Hello, hope this makes some sense, the midpoint formula is what’s given in the picture and the rest is just substitution
Slope is 3/4
You are welcome
