Answer:
21/8 or 2 5/8
Step-by-step explanation:
7/2 miles is equal to 3 1/2 mile trail, or also a 3 2/4 mile trail. You then multiply 3 2/4 and 3/4 and get 2 5/8 or 21/8.
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)
The answer would be 7.2 because the #in the hundredths place is less than 5
Answer:
The length of SP is 2
The length of PW is 4
Step-by-step explanation:
Firstly, we need an image that represents the information given
Mathematically, we have that the centroid is at a position of 2/3 along the median
This means that the centroid will divide the median into two lengths with the length of one double the length of the other
Mathematically;
SW = SP + PW
where PW is the longer length
The length of PW will be;
2/3 * 6 = 4
The length of SP will be 6-4 = 2
C.: The answer is C because the probability that the marble chosen WILL be black is choice D: 3/17. However, the question is asking what the probability is that a marble chosen is NOT black. Therefore, you do 17-3 and get 14. So, the answer is 14/17: C.