Answer:
17
Step-by-step explanation:
There is a SUBTRACTION symbol in the problem. So, you will do the opposite, & ADD the 2 available numbers in the equation. 10+7=17
When you replace that y with 17, the equation is correct.
Answer:
B)
Step-by-step explanation:
we are given a logarithmic expression
we want to expand it
in order to do so we can consider using
- exponent logarithm property
- division logarithm property
recall that,
thus rewrite
use division logarithm property
use exponent logarithm property:
and we are done!
An equation is a proposition of two expressions that are equal.
First. An equation that is always true:This is the case of an equation that the values on the left and right side of the equation are always the same. For instance:
That is:
This equation is always true because both expressions are equal to 8.
The following equations are also always true, namely:
Second. An equation that is sometimes true.
This is the case of an equation that is true for some values of a variable (or variables). Then, our goal is to find these values. For instance:
Next, the value that guarantees the statement of truth is:
Finally, the value that makes the equation to be true is called the solution of the equation.
Third. An equation that is never true.
This is the case of an equation that is always false. For instance:
Therefore, the equation:
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1 from 30 and 3 from 10^3... 4