AB ≈ ED ( corresponding sides )
∠A ≈ ∠D ( corresponding angles )
∠C ≈ ∠F ( corresponding angles )
By using the formula,
Area= 1/2*h(a+b)
=1/2*7(11+5)
=1/2*112
=56cm^2
Therefore the are used 56cm^2
Answer:
1). Marginal profit= P'(x) = 5+ 0.7(Inx +1)
2) P'(10)= 3.23121
A. The additional profit, in thousands of dollars, for selling a thousand candles once 10,000 candles have already been sold.
Step-by-step explanation:
P(x) = 5 x - 0.7 x ln x.
P'(x) = differential of P(x) = 5 x - 0.7 x ln x.
Differential of 5x= 5
Differential of xInx = Inx +1
P'(x) = 5+ 0.7(Inx +1)
Marginal profit= P'(x) = 5+ 0.7(Inx +1)
For P'(10)
P'(x) = 5- 0.7(Inx +1)
P'(10)= 5-0.7(In10 +1)
P'(10)=5-0.7(2.303 +1)
P'(10)=5-0.7(3.303)
P'(10)=5- 2.3121
P'(10)= 3.23121
If P(10) = 5 x - 0.7 x ln x.
P(10) = 50-0.7(10)(In10)
P(10)= 50-16.12
P(10)= 33.88
