The diagram shows a cuboid
AB=10 cm
BC = 8cm
A string runs diagonally across the box from H to B and is 25cm long
calculate the length of A and E
give your answer correct to 3 significant figures

AE=21.47

Step-by-step explanation:

trg ABD I apply the Pitagorean Theoreme

BD^2=10^2+8^2=100+64=164

trg  HDB I apply the Pitagorean Theoreme

DH^2+BD^2=BH^2

DH^2+164=25^2

DH^2+164=625

DH^2=625-164=461

DH=V461=21.47

AE=DH=21.47

bn,mn,n.vn.

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x