Step-by-step explanation:
How many pages can Rick write in 8 hours
= 5 pages / 1/4 hour
= 20 pages / hour
= 20 × 8 / 8 hours
= 160 pages / 8 hours
So, Rick can write 160 pages in 8 hours
Answer:
3√10
Step-by-step explanation:
6P4
This means permutation of 6 things taken 4 at a time.
It is calculated as follows.
6!/(6-4)! =6!/2!
= (6×5×4×3×2×1) ÷ (2×1)
= 720/2 = 360
Y = 3/5x + 10...slope here is 3/5. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So we need a slope of -5/3
y = mx + b
slope(m) = -5/3
(15,-5)...x = 15 and y = -5
now we sub for b, the y int
-5 = -5/3(15) + b
-5 = -25 + b
-5 + 25 = b
20 = b
so ur perpendicular equation is : y = -5/3x + 20
