Answer:
It will be 57-2.5h=32
This is because you're starting with 57 degrees. 2.5 is constant so that is why you need a variable for it.
Answer:
D similar by AA
Step-by-step explanation:
<em>L</em><em> </em>B = <em>L</em><em> </em>D ( right angle)
<em>L</em><em> </em>BCA = <em>L</em><em> </em>DCE (push back angle)
As it is, in accordance with the priorities of the operators (or the PEMDAS rule) the equation without parentheses mean
<span>(2/3)x+1=(1/6)x-7
I do not suppose you mean the above, since the solution is relatively trivial.
I suppose you actually mean
</span><span>2/(3x+1)=1/(6x-7)
in which case you would cross-multiply:
2(6x-7)=(3x-1)
and expand/distribute
12x-14=3x-1
isolate x and solve
12x-3x=-1+14
9x=13
x=13/9
If you mean the first form of equation without parentheses, my apologies.</span>
Answer:
Step-by-step explanation:
Any time a number has a negative exponent that means that the resulting number will be a fraction (ex. 
). Therefore this number is the smallest number.
Anytime a number has an exponent of 0, it will always equal 1
By reducing 21/30 you dived 21 and 30 by 3 and you will get 7/10. Is 7/10 larger than 2/3? If we put these fractions in decimal form we will see 7/10 turns into 0.7 and 2/3 turns into 0.667. So the answer is 21/30 is larger than 2/3.
