Answer:
175 ft
Step-by-step explanation:
From the question,
(a) ΔABC and ΔEDC are similar because all the angles in ΔABC is equal to the corresponding angles in ΔEDC.
I.e, ΔABC is equiangular to ΔEDC. (AAA).
(b) From the diagram.
for similar angle, ratio of corresponding sides are equal
100/d = 4x/7x
100/d = 4/7
where d = distance across the river
solve for d
d = (100×7)/4
d = 175 ft
Answer:
133°
Step-by-step explanation:
angles on a straight line = 180°
180 - 144 = 36°
angles in a triangle = 180°
36 + 31 = 67
180 - 67 = 113
answer = 113°
Answer:
I dont know I also need help with this
Step-by-step explanation:
this is so hard please help
Step-by-step explanation:
60% of 20 = 12
Answer:
10 ft-lbs.
Step-by-step explanation:
Given data
Weight of box= 5 lb
Height moved = 2 feet
We know that the expression for work done is
Work done= Force * Distance
Work done= 5*2
Work done= 10 10 ft-lbs.
