Answer:
a
Step-by-step explanation:
Answer:
(2 + r)(16 + r)
Step-by-step explanation:
Consider the factors of the constant term (32) which sum to give the coefficient of the r- term (+ 18)
The factors are + 16 and + 2
Use these factors to split the middle term
32 + 16r + 2r + r² ( factor the first/second and third/fourth terms by grouping )
= 16(2 +r) + r(2 + r) ← factor out (2 + r)
= (2 + r)(16 + r) ← in factored form
You mean 6^(3-x) ??
then the answer is D.
because when 6^(3-x) = 6^2, you can just ignore that 6 because both of them are 6, therofe we only need to focus on the power.
(3-x) = 2
therefore x is 1.
6x10=60m^2
2x1.5=3m^2
Pi x 2^2=12.566m^2
60-3-12.566=44.433
44.433/10=4.43
So around 5 bags
5 x4x60=£23
