Two previos numbers of <em>n</em><em> </em> are <em>(</em><em> </em><em>n</em><em> </em><em>-</em><em> </em><em>1</em><em> </em><em>)</em><em> </em> and <em>(</em><em> </em><em>n</em><em> </em><em>-</em><em> </em><em>2</em><em> </em><em>)</em><em> </em><em> </em>Thus :
( n - 2) + ( n - 1 ) + n = 3n - 3
This should be 2x^2 + 7x - 4
Answer:
x=-85
Step-by-step explanation:
Divide the number of questions she got correct by the total number of questions on the test them multiply the decimal answer by 100 to get the percent.
42/60 = 0.7
0.7 x 100 = 70%
Answer:
see explanation
Step-by-step explanation:
Under a reflection in the x- axis
a point (x, y ) → (x, - y ), thus
A(1, 4 ) → A'(1, - 4 )
B(3, - 2 ) → B'(3, 2 )
C(4, 2 ) → C'(4, - 2 )
