(n-6)/(n-7)=9/2
-> 2(n-6)=9(n-7)
-> 2n-12=9n-63
-> 2n-9n=-63+12
-> -7n = -51
-> n = 51/7
The answer is n=51/7
Answer:D
Step-by-step explanation:1 divied by 16 =16
4 divied by 64 = 16
We have that
y = 225-16t²
we know that
<span>the ball hit the ground when y=0
the point when y=0 is the x intercept of the graph
so
find the value of t for y=0
y=0
</span>y = 225-16t²------> 0=225-16t²
16t²=225-------> t²=225/16----------> t=√(225/16) -----> t=15/4 sec
t=3.75 sec
the answer is
t=3.75 sec
see the attached figure
Perimeter = 2L + 2W
since it’s a square, all sides are equal so
perimeter = 4s
s = 13
so multiply 13 by 4
perimeter = 13*4 = 52