Answer:
AD = 4.5
Step-by-step explanation:
Since the two bases of the two given triangles are parallel the triangles are similar.
Triangle BDE is similar to Triangle BAC
From this the following proportion can be set up.
BE / BC = BD/BA
BE = 8
BC = 8+12 = 20
BD = 3
BA = 3 + x where x = DA
8/20 = 3/(3+x) Cross Multiply
8(3 + x) = 3 * 20 Remove the brackets on the left. Combine Right
24 + 8x = 60 Subtract 24 from both sides
8x = 60 - 24 Combine the right
8x = 36 Divide by 8
x = 36/8
x = 4.5
But x = AD
0.0725 is the answer
hope it will help you and mark me as
BRAINLIEST
Answer:
The answer is :
so, type 190 in the box
Step-by-step explanation:
Notice that there are three right angle triangles in the image given. In order to create equations associated with the Pythagorean Theorem for the three triangles, we add the letters x and z to identify two sides that are missing information. Please see attached image for reference.
In the small right angle triangle on the right, the Pythagorean theorem tells us:
In the larger triangle :
In the small triangle on the left:
and in this last equation we can substitute the z-squared and the x-squared by the expressions we got before in the other two equations:
Then to solve for "y" we apply the square root:
Answer:
height=3.28m
Step-by-step explanation:
air means volume of room
let the height of room be x.
so, volume of room= 156.1 m³
8.31*5.72*x=156.1m³
x =3.28m
Answer:
Step-by-step explanation:
Downstream:
Upstream: