Answer:
The equality is only true for
, not for all values
Step-by-step explanation:
Given

Required
Determine if it is valid

Evaluate the exponent



Rewrite as:

Factorize



<em>The equality is only true for </em>
<em>, not for all values</em>
Answer:
156 degrees
Step-by-step explanation:
The four angles in any quadrilateral add to 360 degrees. Add the given degrees and subtract that number from 360 for your answer
Answer:
its c jut took the test
Step-by-step explanation:
The way you'd set it up would be sin55º/12=sinB/14 (you could also flip the equation so that 12/sin55º=14/sinB, you'll get the same answer either way). Multiply out so that its 14•sin55º=12•sinB, or 11.47=12•sinB. Divide both sides by 12 so that it looks like .96=sinB, then take arcsine of both sides (arcsin= x=sin^-1 theta+360n or x=180- (sin^-1 theta)+360n), which should give you about 72.88º and 107.12º.
<span>10x-5y=25 solve for y
so
10x - 5y = 25
5y = 10x - 25
y = 2x - 5
hope it helps</span>