Answer:
21+3x
Step-by-step explanation:
Expand this:
3(7+x)
So it becomes:
21+3x
Answer: 
Step-by-step explanation:
We know that the general form of the exponential decay formula is
, where y is final amount remaining after t time, A is the original amount and r is the rate of decay
Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. 
Hence, the ratio of remaining since the nuclear accident is 
Step-by-step explanation:
9:
A=V/t
A=8.0m/s•1/2.0s
A=8.0m/2.0s²
A=4.0m/s²
10:
V=A•time
V=4.0m/s²•2.3s
V=9.2m/s
11:
V=A•t
24.0=5.6t
4.3s=t
Answer:
x=-1, x=3, x=4
Step-by-step explanation:
1. Substitute 0 for f(x)
0=(x+1)(x-3)(x-4)
2. Set each set of parenthesis equal to 0
0=x+1, 0=x-3, 0=x-4
3. Solve for x
x=-1, x=3, x=4
Answer: 1,3,6
Explanation: