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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The length of the support post is 40 ft.
<u>Solution:</u>
Given, the height of the wall is 20 ft; support post forms 30 degree
Refer the attached image
Let us name the triangle as ABC where AB is the wall (opposite side) of 20 ft and
is 30 degree (
) and AC is the length of the post.
To find: The length of the post (AC)
we know the formula,
(trigonometric formula)
On substituting the values we get,

The value of sin 30 degree is 0.5

The conversion of the following units are done below.
- 6 km = 3.72 miles
- 2.5 L = 0.65 gallons
- 90 lb = 40.5 kg
<h3>What is conversion?</h3>
Conversion means to convert the same thing into different units.
We know the following unit's conversion.
1 km = 0.62 miles
6 km = 3.72 miles
1 L = 0.26 gallons
2.5 L = 0.65 gallons
1 lb = 0.45 kg
90 lb = 40.5 kg
More about the conversion link is given below.
brainly.com/question/9414705
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The correct answer is 60 raisins. To get this answer you will write a proportion of M & Ms to raisins and create and equivalent ratio using the number 36.
After you have the proportion set up, you will use cross products to solve for the number of raisins.
You can also use equivalent ratios to find the number of raisins.
Both of these strategies are shown in the attached picture.