Answer:
9.434 X 10^66
Step-by-step explanation:
2.34 X 10^65 + 9.2 X 10^66 (First, you have to manipulate the exponents to bring them to the same index, i.e. the same power)
We can say that 2.34 X 10^65 = 0.234 X 10^66
Now that the indexes are equivalent, we can proceed to add the two bases together.
0.234 X 10^66 + 9.2 X 10^66
= (0.234 + 9.2) X 10^66
= 9.434 X 10^66
Answer:
Table C
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
Find the value of the constant of proportionality in each table
Table A
For
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For
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This table has different values of k
therefore
the table A does not represent a proportional relationship
Table B
For
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For
------>
For
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This table has different values of k
therefore
the table B does not represent a proportional relationship
Table C
For
------>
For
------>
For
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For
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This table has the same value of k
therefore
the table C represent a proportional relationship
Table D
For
------>
For
------>
For
------>
For
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This table has different values of k
therefore
the table D does not represent a proportional relationship
X = 42 - 19, so A - x = 23