Answer:
1.74
Step-by-step explanation:
The statement regarding the expansion of (x + y)" that is correct is D. The coefficients of yn - 1 and yn – 1 both equal 1.
<h3>How to expand?</h3>
It should be noted that for any positive integer, n, the expression of (x + y)^n will be C(n,0)x^n + C+n, 1)x^n-1 .... C(n, n)y^n.
Here, the statement regarding the expansion of (x + y)" that is correct is that the coefficients of yn - 1 and yn – 1 is both equal to 1.
Learn more about expansion on:
brainly.com/question/29114
#SPJ1
Your answer would be 5.94.
Answer:
Step-by-step explanation:
y=a(r)^{n-1}
y=1(2)^{x-1}
40/16 = 24/x
16*24 = 384
x = 384 / 40
x =9.6
it cast a shadow 9.6 feet long
