Answer:
2 * 10 + 6 * .1 + 5 * .01
Step-by-step explanation:
No se puede simplificar ya. ✅
=<span><span><span><span><span>16<span>x4</span></span>+<span>40<span>x3</span></span></span>+<span>5<span>x2</span></span></span>−<span>25x</span></span>−<span>6</span></span>
Answer:
14080 ft
Step-by-step explanation:
You want to convert 4 mph to ft/min and then mult. the result by 40 minutes:
4 mph 5280 ft 1 hr
---------- * --------------- * ------------- = 352 ft/min
1 1 mile 60 min
Now multiply this rate (speed) by 40 minutes:
352 ft 40 min
---------- * ------------ = 14080 ft (answer)
min 1
This would be the same as 2 2/3 miles (in 40 min)
have joint density
We can find 
by integrating the joint density over the region in 
where 
in the first quadrant, i.e. above the line 
:
using the fact that
Then using the same property,
