Answer:
39.2 km/hr.
Step-by-step explanation:
Given,
Mariko distance to work = 72 mile
1 mile = 1.6 Km
72 mile = 1.6 x 72= 115.2 km
time taken to cover this distance = 2.25 hr
Average speed of mariko = 115.2/2.25 = 51.2 km/hr
Issei distance to work= 226 Km
time taken by issei = 2.5 hr
Average speed of issei = 226/2.5 = 90.4 Km/hr
Difference between their average speed
= 90.4 - 51.2 = 39.2 km/hr
Hence, the average speed difference is equal to 39.2 km/hr.
"coplanar"
Coplanar means they lie in the same plane.
Answer:
the answer is 3.14
Step-by-step explanation:
If you divide the circumference (π x d) by the diameter (d) Each time you will get π or 3.14
π x d
d
= π
Answer:
(-7, 4) and 7
Step-by-step explanation:
The standard equation of a circle is expressed as (x - a)^2 + (y - b )^2 = r^2
Where the center is the point (a, b) and the radius is r
Note: simply inserting the variables and playing around with your signs gives you the value for (a and b)
The square root of the radius gives you the value for r
Answer:then what?
Step-by-step explanation: