<span>2(3y - 7) - 5y(2 - y)
2*3y - 2*7 - 5y*2 -5y*(-y)
6y - 14 - 10y + 5y</span>²
5y² + 6y - 10y - 14
<span>5y² -4y - 14</span>
It really depends on how precise you're going to get.
You could get away with only two parts, but to be really precise, you should probably divide it into twelve (12) parts, because 5/12 means five out of twelve parts, so its would be right on the fifth subdividing marker line.
Answer:
Step-by-step explanation:
Triangle DEF is similar to triangle HGF.
Therefore the corresponding sides are proportional.
We can write the following equations for the corresponding sides.
This implies that,
This gives us,
We cross multiply to get,
We divide through by 5 to get,
We multiply to get,
Grouping like terms gives,
We simplify to obtain,
The correct answer is C
Answer: 8. Tens:4 Hundreds:5 Thousands:7
9. Tens:9 Hundreds:9 Thousands:9
10.Tenths:6 Hundredths:2 Thousandths:4
11. Tenths:7 Hundredths:3 Thousandths:6
Step-by-step explanation:
Answer:
pH = 3.3
Step-by-step explanation:
pH is given by the formula; pH = –log[H+]
The concentration of hydrogen ions is 5.0 × 10–4 moles per liter.
Therefore;
pH = - log₁₀(5.0 × 10^–4)
= -( - 3.301)
= 3.301
Thus;
The approximate pH will be; 3.3
