Answer:
i think it is D Beaker A is used as an experiment to see the effects of air on limestone. Beaker B is used as an experiment to determine the effects of plain water with a neutral pH on limestone. Beaker C is used as an experiment to determine how acid affects limestone. Beaker D is used as a second experiment to determine how acid of a higher concentration affects limestone compared to acid of a lower concentration. There are no controls in this experiment because a controlled experiment was not practical for this situation.
Explanation:
Answer:
A
Explanation:
Let's solve the equation to be written as y in terms of x by adding y to and subtracting 12 from both sides:
3x - y = 12
3x - 12 = y
Now, replace y in the other expression that we want to find (
) with this expression 3x - 12:
Now, we also know that 8 = 2³, so substitute 2³ for 8 in the expression:
Remember that when dividing powers with the same base (in this case, the common base is 2), the result will be a single power whose exponent is the difference of the other two powers. Here, then we have:
Thus, the answer is A.
Answer:
2.5% of $80,000=$2,000
The Smiths pay $2,000 in school taxes per year.
Explanation:
100%=$80,000
10%=$80,000(100%)/10=$8,000(10%)
5%=$8,000(10%)/2=$4,000(5%)
2.5%=$4,000(5%)/2=$2,000(2.5%)
There would be 10 in each daughter cell
C. Earth’s Southern Hemisphere is tilted closest toward the sun in June.
