Which expression is equivalent to 13x(9y – 12)? A. 3xy − 4 B. 3xy − 4x C. 3xy − 12 D. 3y − 4x
1 answer:
Answer:
<h2>B. 3xy − 4x</h2>Step-by-step explanation:
step one:
Given the expression 13x(9y – 12) we are expected to expand the expression to obtain a similar expression given in the options
step two
we proceed by
step three
we proceed to both terms in the expression
bt a common factor which is 39
From our analysis, the option D matches the expression
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Step-by-step explanation:
Finding a regular polygon with <em>x </em>amount of sides, you use the equation to find the amount of triangles. Replace <em>x </em>with 15 and you will get 13. Each triangle has angles that add to
, so you would do 180 * 13 to find the total of all of the interior angles, = 2340. Then, divide 2340 by 15, and you will get 156!
Answer:
Step-by-step explanation:
b.
an=an-1+3
C.
when x=15
y=3×15-2=45-2=43
a15=43