Answer:
6,000 meters
Step-by-step explanation:
Length of one lap d = 400 m
Lee's speed = u = 7.2 km/h. Shelby's speed v = 9 km/h
After time t, Shelby will run x meters to cover exactly 3 more laps than Lee.
So x = vt
and
x - 3d = ut
Note t = x/v, then
x - 3d = x*u/v
x (1 - u/v) = 3d
x = 3d/(1 - u/v) = 3*400/(1 - 7.2/9) = 6,000 meters
Answer:
The exact distance is √65 units
Step-by-step explanation:
To solve this problem we first have to make the difference between (-5, 1) and (3, 0)
(3 , 0) - (-5 , 1) =
3 - (-5) = 8
0 - 1 = -1
(8 , -1)
Now that we have the distance in x and r we can use Pythagoras to calculate the distance of the diagonal
a = 8
b = -1
h² = a² + b²
h² = 8² + (-1)²
h² = 64 + 1
h² = 65
h = √65
The exact distance is √65 units
Answer:
The correct answer is option B
Step-by-step explanation:
The general form of inverse variation between the variables x and y is as following:
where c is constant
option A : y = x/12 ⇒ x = 12y (wrong option)
option B : y = 12/x ⇒ y * x = 12 (correct option) and c will be equal 12
option C : y = x + 12 ⇒ not similar to the general form (wrong option)
option D : y = 12x (wrong option)
So, the correct option is B
Answer:
A, D.
Step-by-step explanation:
Tip: For these assignments just choose a random answer, then close the tab right after then go back in and repeat until you get the right answer. NOTE: this doesn't work on tests that make you submit it all in one, and only works effectively on multiple choice.