Answer:
You could subtract 910 from 60 which would give you 850 and that would be your answer.
Step-by-step explanation:
You multiply length times width or base times height.
Answer:
416025
Step-by-step explanation:
For confidence interval of 99%, the range is (0.005, 0.995). Using a z-table, the z-score for 0.995 is 2.58.
Margin of error = 0.2% = 0.002.
Proportion is unknown. So, worse case proportion is 50%. p = 50% = 0.5.
\\ 
So, sample size required is 416025.
First of all, the first power of 'x' is the highest power in the whole equation,
so we only expect one solution.
You said that <span><u>3x+9 = 21+7x </u>
Subtract 3x from each side:
9 = 21 + 4x
Subtract 21 from each side:
-12 = 4x
Divide each side by 4 :
<u>-3 = x </u>
</span>
X=1
5=-4y+4
4y=-1
y=-1/4
x=2
10=-4y+4
4y=-6
y=-3/2
x=3
15=-4y+4
4y=-11
y=-11/4
