P = ( 2 / 3 )s;
s = ( 3 / 5 )t ;
p + s + t = 280 ;
Then, p =( 2 / 3 )( 3 / 5 )t ;
p = ( 2 / 5 )t;
We solve the equation : ( 2 / 5 )t + ( 3 / 5 )t + t = 280 ;
( 2 / 5 )t + ( 3 / 5 )t + ( 5 / 5 )t = ( 1400 / 5 )t;
10t = 1400 ;
t = 1400 ÷ 10 ;
t = 140 postcards has Tim;
p = ( 2 / 5 ) × 140 = 56 postcards has Paul;
s = ( 3 / 5 ) × 140 = 84 postcards has Shawn ;
Answer:
The answer is C.
There is a horizontal line test but the question asks to use the vertical line test. Using the horizontal line test you would get that the function is not one to one but using the vertical line test you would get its one to one.
Answer:
answer is D
Step-by-step explanation:
APEX :)
This is indeed a polymomial, it's just not in the correct order. The term with the highest exponent goes first, dictating the degree of the whole entire polynomial. In descending order, the polynomial is written correctly as
. It is a third degree polynomial with a leading coefficient of -2.
Answer:
¼
Step-by-step explanation:
