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s344n2d4d5 [400]
4 years ago
7

Please help me I don't understand!

Mathematics
2 answers:
Naily [24]4 years ago
7 0
3. For this one, we know that the sum of the angles is equal to 115 and we have the measure of one angle. So, we will subtract the one angle from the total to get the measure of the second angle. 115-90=25
4. We will do the same for this one as we did in number 3. The sum of the angles is 70, and one of the angles is 40. 70-40=30
5. Lets add the two angles up first. 45+45=90. Two angles that add up to 90 are complementary angles. 
Kobotan [32]4 years ago
6 0
#3) since angle ABC is 115 degrees, to find EBC you simply have to subtract 115 from 90 and the answer is 25 degrees. 
#4)DGJ would be 30 degrees because you take 70 minus 40.
#5) a 90 degree angle. 
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What is the solution to the equation below? riund your answer to two decimal places. (24) log(3x) = 60
Amanda [17]

The answer is:  " x = 105.41 " . 

_____________________________________________

Explanation:

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Given:   " 24 log (3x) = 60 " ;  Solve for "x" .

The default is to assume "base 10" for the "logarithm". 

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Start by dividing each side of the equation by "24" ; 

       →   [ 24 log(3x) ] / 24  = 60 / 24 ; 

to get:  

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 log (3x)  = 2.5 ;

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Rewrite as:  log₁₀ (3x) = 2.5 ;  

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Using the property of logarithms:

⇔    10⁽²·⁵⁾  =   3x  ;  

↔   3x = 10⁽²·⁵⁾   ;

         →  10^ (2.5) = 316.2277660168379332 ;

     →  3x = 316.227766016837933 ;  

Divide each side of the equation by "3" ;

  to isolate "x" on one side of the equation;

      and to solve for "x" ;

    →  3x / 3 =  316.2277660168379332 / 3  ;

to get:

    →   x = 105.4092553389459777333 ;

    →  round to 2 (two) decimal places;

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         →   " x = 105.41 " .

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 Hope this helps!

    Best wishes to you!

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