Answer:
She should work for 7 weeks if she wants it ti be an hojr
She should work out for 7 weeks if she wants her time to be an hour.
Step-by-step explanation:
5 times 7 equals 35 and 35 plus 25 is 60 which is equal to an hour
given - a rectangle ABCD
AB = 40
AC. = 90
BC = ?
in triangle ABC
using Pythagoras theorem
(AB) ² + (BC) ² = (AC) ²
(40)² + (BC) ² = (90)²
(BC) ² = (90)²- (40)²
(BC) ² = 8100 - 1600
(BC) ² = 6500
BC =