I possibly think it is c that is what I got
1. A. 10,000
Explanation: 10^4 = 10,000
2. x = -12
Explanation: see photo
Sin(4π/3)= -√3/2
cos(5π/6)= -√3/2
Answer:
Step-by-step explanation:
A slope of 4 has a greater rate of growth than a graph with a slope of 1
Price elasticity is defined as

.
Here, the question has omitted to define variables, so we will ASSUME
p=price
x=variable,
and we're given
p+x^2-160=0
We calculate

by implicit differentiation with respect to p:
1+2x (dx/dp)=0
=>
E(x)=(dx/dp)=-1/(2x)
Therefore the price elasticity at x=65 is
E(65)=1/(2*65) =-1/130 (approximately -0.00769)