Answer:
(b-3d) (3a+c)
Step-by-step explanation:
factor the expression
Answer:
Second one: (1,2) (2,4) (3,6)
Step-by-step explanation:
y = 2x
2 = 1(2)
4 = 2(2)
6 = 2(3)
Answer:
A = 20sinθ(6 + 5 cosθ) cm²
Step-by-step explanation:
Drop perpendiculars DE and CF to AB.
Then, we have congruent triangles ADE and BCF, plus the rectangle CDEF.
The formula for the area of the trapezium is
A = ½(a + b)h
DE = 10sinθ
AE = 10cosθ
BF = 10cosθ
EF = CD = 12 cm
AB = AE + EF + BF = 10cosθ + 12 + 10 cosθ = 12 + 20cosθ
A = ½(a + b)h
= ½(12 +12 + 20 cosθ) × 10 sinθ
=(24 + 20 cosθ) × 5 sinθ
= 4(6 + 5cosθ) × 5sinθ
= 20sinθ(6 + 5 cosθ) cm²
Answer:
5
Step-by-step explanation:
1+2+2+3+5+6+6+8+8+9/10=5