Answer: Shania is correct.
Step-by-step explanation:
For a right angled triangle, given two sides and an angle, we can use the sine rule or the various trigonometry identities to solve the triangle;
a/sin A = b/sinB
and
sin (angle) = opposite side/hypotenuse
cos (angle) = adjacent side/hypotenuse
tan (angle) = opposite/ adjacent
assuming a is the opposite side of angle A and b is also opposite of angle B
Otherwise, the only way to solve a triangle given two sides only is by the use of the Pythagoras theorem.
Hence, Shania is correct.
Answer:
Step-by-step explanation:
we take the LHS so here goes,
since , 
the identity becomes,
now, we know,
and 
the identity becomes,
sin A and cos A cancel out it becomes zero
Splitting the denominator the identity becomes
Hence,
Answer:
x = -18
Step-by-step explanation:
Please, share the instructions when you post a problem. I can only assume here that you want to solve the given equation for x.
Multiplying out this equation, we get:
-5x - 20 = -4x - 2
Then:
-x = 18 and x = -18.
Answer:
Uh
Step-by-step explanation:
Answer:
<em>-9.7 + 18.6</em>
Step-by-step explanation:
Given the expression:
-9.7 - (-18,6)
The additive inverse of -18.6 is 18.6
The product of teo negative sign will also give a positive sign, hence:
-9.7 - (-18,6) = -9.7 + 18,6
-9.7 + 18,6 = 18.6 - 9.7
18.6 - 9.7 = 8.9
<em>Hence the expression can also be written as -9.7 + 18.6 with 8.9 being the solution</em>
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