The correct answer is A.
Step-by-step explanation:
According to the power rule for logarithms, the logarithm of a power can be simplified by writing it as the product of the exponent multiplied by the logarithm of the base.
For example;

Hence in this case,

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Logarithms : brainly.com/question/11535704
Keyword : log
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Answer:
on my knowledge i can tell you the methods used to solve it which are;
Step-by-step explanation:
<h3>Elimination method.</h3><h3>Substitution method.</h3><h3>Graphical method.</h3>
Answer:
I haven done that in a hot minute. jeezzz
Step-by-step explanation:
Step-by-step explanation:
We get two equations here. One for the area and one for the perimeter. The area gives us x×y=50. The perimeter, if we have a rectangle, x+y+x+y=30=2x+2y. For this to work we need to make a simple expression for x or y. Let's go with x here. 2x+2y=30 so x=15-y. if we fill that in the other equation we get (15-y)×y=50 (see picture). y=5 or y=10. If we fill in x×5=50 we get x=10 and vice versa. So the dimensions are 5 centimeters by 10 centimeters
Cos A) 16/20 or 4/5
Tan A) 12/16 or 3/4
Sin A) 12/20 or 3/5