F(x) = 4.25x + 50
for 6 hrs....x = 6
f(6) = 4.25(6) + 50
f(6) = 25.50 + 50
f(6) = 75.50 <==
Answer:
Step-by-step explanation:
hello :
if x1 and x2 this zero for ax²+bx+c you have : x1 = 1 /x2 means :x1 × x2 =1
but : x1 × x2 = c /a
in this exercice : a =8 and b = -13 and c = - 4k
so : c/a =-4k/8
so : -4k/8 = 1
-4k = 8 k = 8/-4 k = -2
this polynomial is : 8x²-13x +8
Greatest common factor (GCF) of 7 and 15 is 1. We will now calculate the prime factors of 7 and 15, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7 and 15.
Answer:
The difference between their volumes is 
Step-by-step explanation:
The attachment completes the question.
For cube 1:

For cube 2:

Required
The difference in their volumes
First, we calculate the volume of box 1

Substitute 8 for s1


Next, we calculate the volume of box 2

Substitute 6.5 for s2


The difference is then calculated as:




Hence, the difference between their volumes is 
A) 115x + 500 = 2685
-500 = -500
B) 115x = 2185
C) 115x/115 = 2185/115
D) x = 19 people