Answer:
Step-by-step explanation:
x³ - 4x² + 7x - 28 = <u>x³ - 4x²</u> + 7x - 7*4
= <u>x²(x - 4)</u> + 7(x - 4)
= (x - 4 )(x² + 7)
Answer:
b) $4.60
Step-by-step explanation:
a)
2 panels at $923.40 each = $1846.80
Total with installation: $1944.80
Installation $1944.80-$1846.80 = $98
b)
2 panels at $940.50 each = $1881.00
Total with installation: $1983.60
Installation $1983.60-$1881.00 = $102.60
Substract a from b
102.60-98 = 4.60
Each angle in a regular octagon = 135 degrees and
Because of the 2 given equal angles BCDA is a trapezium, so
AD is parallel to BC so < BCD + < CDA = 180 degrees
Therefore < CDa = 180-135 = 45 degrees
and < CDJ = 180 - 45 = 135 degrees (adjacent angles).
The answer is 2,16 i’m pretty sure