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zubka84 [21]
2 years ago
14

1-tanA÷1+tanA=1-sin2A÷cos2A​

Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
7 0

hope u get it. I've used RHS to prove LHS

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Major help and if you can, please explain how you got your answer
hjlf
The correct answer is:  [A]:  " 384 in² " .
_______________________________________________________

Explanation:
______________________________________________________
The formula for the surface area of a cube is:
______________________________________________________

             →   A   =   6a²  ;
______________________________________________________             →   in which:  
______________________________________________________
                            A  =  surface area of the cube— for which we shall solve ; 
                                               (in "square units" ; or, " in² " ; in our case) ; 

                            a = side length = " 8 in " (given); 
    
   →  Note:  A cube has all equal side lengths.

   →  The "6" in the formula accounts for "6 sides" of a cube.

_______________________________________________________

→  To solve for the surface area of the cube; plug in our known value(s);
                &  solve;  as follows:
_______________________________________________________
                          →  A  =  6 a²  ;

                                    =  6 * (8 in)²  ;

                                    =  6 * 8² * in² ;

                                    =  6 * 8 * 8 * in² ; 

                                    =  48 * 8 * in² ; 

                                    =  384  in²  ;
_______________________________________________________
The answer is:  " 384 in² " ;  

→  which is:  Answer choice:  [A]:  " 384 in² " .
_______________________________________________________
8 0
3 years ago
A climber starts at an elevation of -200 meters and her change in elevation is 300 meters up. What is her final elevation?
kherson [118]

Answer:

100

Step-by-step explanation:

because -100 0 then positive 100      

                     

4 0
2 years ago
Lisa is collecting data by interviewing people on the streets. She
katen-ka-za [31]

Answer:35 you are welcome

Step-by-step explanation:

6 0
3 years ago
What is the slope of the line that passes through the points (2, 5) and (7, 3)?
lana66690 [7]

ANSWER: \frac{2}{-5}

EXPLANATION:

We can use the slope formula and input the x and y values to solve for the slope.

\text{Slope Formula}: \frac{y_{2}-y_{1} }{x_{2}-x_{1}}=m

\frac{5-3}{2-7}=m\\\text{Simplify.}\\\frac{2}{-5} =m

The slope of the line is \frac{2}{-5}

8 0
2 years ago
Simple problem {plz try your best]
masha68 [24]

Answer:

108 degrees

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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