<span>FeCl3 test is used to find out the phenols in a sample or compound. Natural phenols in a plant extract can be determined using the FeCl3 test, for example. If the test results in dark brown solution it is a positive result signify that it contains phenols.</span>
Answer:
To find the area of a trapezium all you need to do is, Half the sum of the parallel lines (base and base) and times the distance between them (height).
1. The area is 
2. The area is 
3. The area is 
Hope that helps. x
2 is a prime number for 14 and 24
Hope this helps!!
Hello :
let : x the length and y the <span>width
the perimeter is : 2(x+y)
2(x+y) = 70 and : x/y =4/5
x+y = 35 ......(1)
x = (4/5)y ... (2)
subsct in : (1)
</span> (4/5)y +y = 35
4y+5y = 175
9y = 175
y = 175/9
in (2) : x = (4/5)(175/9) = 140/9
Answer:
180cm^3
Step-by-step explanation:
4 times 5 = 20
20 times 9 = 180
cm^3 because it's 3d