Elements are arranged in the periodic table based on various patterns. For example, elements found in the rows near the top
A.
all have the same atomic number.
B.
have the same atomic numbers as the elements in the rows near the bottom.
C.
have higher atomic numbers than the elements in the rows near the bottom.
D.
have lower atomic numbers than the elements in the rows near the bottom.
i am not sure
Answer:
1.908
Step-by-step explanation:
Assuming you are going at a base of 10,
㏒81 = 1.908, just use a calculator
Answer:
? = 16
Step-by-step explanation:
x2 - 8x + ? = 42 + ?
1. Take the coefficient of the middle term 8x, which is 8 and divide it by 2. . Then square it
2. Take 16 and add it to both sides:
2. Take half of the coefficient 8 that you divided by 2, which is 4 and insert 4 into the equation
3. ? = 16
Answer:
a = 138
Step-by-step explanation:
Notice that from the figure, we can see that ∠MOQ and ∠PON are vertical angles, which means that by definition, they're congruent in measure.
∠MOQ = ∠MOR + ∠ROQ = 90 + 48 = 138°
So, this means that ∠PON is also equal to 138, which means a = 138.
Thus, the answer is a = 138.
<em>~ an aesthetics lover</em>
Answer:1/(8a^12)
Step-by-step explanation:
(2a^4)^-3
2^(-3) x (a^4)^(-3)
1/(2^3) x a^(-12)
1/(2x2x2) x 1/(a^12)
1/8 x 1/a^12
1/(8a^12)