Given the line below.
1 answer:
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Answer:
100 in²
Step-by-step explanation:
Since the figures are similar
the linear ratio of sides = a : b , then
ratio of areas = a² : b²
ratio of sides = 15 : 21 = 5 : 7
ratio of areas = 5² : 7² = 25 : 49
let the area of the smaller figure be x then by proportion
=
( cross- multiply )
49x = 4900 ( divide both sides by 49 )
x = 100
Area of smaller figure is 100 in²
Hey Gary :) Nice to see you around
For this question, we want to use logarithmic rules to write the expression as a single logarithm.
Using the rule
, we can simplify
to 
. We can also simplify 
to 
.
So, we have + 
.
Another logarithmic rule is:
Using this rule, we can use the logs we have calculated and change them to:
This matches answer choice A.
Hope this helps! Feel free to contact me with any questions.
For this question, we want to use logarithmic rules to write the expression as a single logarithm.
Using the rule
So, we have
Another logarithmic rule is:
Using this rule, we can use the logs we have calculated and change them to:
This matches answer choice A.
Hope this helps! Feel free to contact me with any questions.