Answer:
Its 11
Step-by-step explanation:
Jk its 2. Bro learn addition. XD
DE + EF = 4x+2
DE = x+7
EF = 7
Substitute these in
x + 7 + 7 = 4x + 2
x + 14 = 4x + 2
subtract x from both sides
14 = 3x + 2
subtract 2 from both sides
3x = 12
divide both sides by 3
x = 4
substitute this in to find the length of DE
DE = x + 7
(4) + 7 = 11
the answer is 11
Answer:
15/720
Step-by-step explanation:
5/18 • 3/20 • 6/12
Answer:
150 sq.cm
Step-by-step explanation:
total surface area of a cube is
(where a = measure of each side of the cube)
so, TSA = 6 × 5 × 5 = 150 sq.cm