Speed upstream = 320/10 = 32 mph
speed downstream = 320/5 = 64 mph
So spedd of the current is 64 - 32 = 32 mph
Answer:
(x² - 3)(x² + 3)
Step-by-step explanation:
- 9 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , thus
- 9
= (x² )² - 3²
= (x² - 3)(x² + 3)
Answer:
the perimeter is the same on both, because the number are the same
Answer:
None of those
Step-by-step explanation:
3! = 3*2*1 = 6
4! = 4*3*2*1 = 24
24 * 6 = 144
144 is none of the choices
Answer:
the answer is 14
Step-by-step explanation:
