Since each min is 60 seconds you multiply 60 by the number of minutes which is 7 and you get 420:
60x7=420 Then you add 30 seconds equaling 450 seconds total
Then you divide 450 by 4 since she ran 4 laps.
So, Stephanie ran 112.5 seconds per lap
Answer:
GE = 3 cm
Step-by-step explanation:
BE = 9 cm
Since G is the centroid, therefore:
=> Centroid theorem
Plug in the value

GE = 3 cm
Answer:
A p
Step-by-step explanation:
We have

Remeber that


Now, plug in
So now we plug in -1 for x and 5 for y

Simplify

A is the answer.
Answer:
i dont know if its supposed to be a whole number, fraction, decimal.
Step-by-step explanation:
but, one possible answer is 103 x 6 + 12 = 630
Answer: 17
Step-by-step explanation: You take 47, multiply it by 2 and you should get 94. Subtract 128 and 94 which =34. Since the perimeter = 2 times the original width you divide that by 2 and get 17.