Answer:
t = 1/2 ÷ 1/4
t = 2 hours
Step-by-step explanation:
Time spent watching movies = 1/2 of an hour
This accounts for 1/4 of the total time thei spend at mount rushmore.
1/2 = 1/4t
Where t = total time they spent at mount rushmore (hours)
1/2 = 1/4t
Determine the equation to find t
t = 1/2 ÷ 1/4
= 1/2 × 4/1
= 4 / 2
= 2
t = 2 hours
If you add it will be 807,683.5
if you multiply it will be 1.82083248E+25
if you divide it will be 1.98800285E−15
Answer:

Step-by-step explanation:
The given relation is
D={(x,y):(3,9),(5,25),(-2,4)}
We can see that;



Hence in general,

Therefore the equation for the relation is;

N being the number, n-4=-21. n=-17
Answer:
12
Step-by-step explanation:
(r + 8)² = r² + 16²
r² + 16r + 64 = r² + 256
16r = 192
r = 12