No solutions
if you substitute the equations into each other the x's and y's will cancel each other out and you will be left with 9=-6 which isn't true<span />
Answer:
31-3n
Step-by-step explanation:
d=-3
a1=28
an= 28+(n-1)(-3)=28-3n+3
an=31-3n
Answer:
560
Step-by-step explanation:
1600*.35
The tree is 4 times as tall as the man, so we expect its shadow to be 4 times as long as the man's: 4 × 7.5 ft = 30 ft.
Answer:
Well by looking at the products,it must be sodium bicarbonate (NaHCO3)
Step-by-step explanation:
but then sodium bicarbonate does not remove permanent hardness of water,that compound is washing soda(Na2CO3) which should not be confused with NaHCO3. So as it would appear,the premise of the question is wrong but there is a compound that reacts with HCl to give those products
