Answer:
15x^2 - 9x - 42
Step-by-step explanation:
(3x+6)(5x+7)
15x^2 +21x - 30x -42
15x^2 - 9x - 42
Answer:
15%
Step-by-step explanation:
To find the percent increase, use the equation:
percent of increase=<u>amount of increase</u>
original amount
The amount of increase is 92-80 = 12. The original amount of 80; this gives us
12/80 = 0.15 = 15%
The answer for this question is 4
One revolution corresponds to an angular displacement of 
, so its angular speed is
radians is equivalent to 180 degrees, so the angular speed could also be
The linear speed depends on the wheel's radius. Suppose its radius is 
. Then the wheel has circumference 
units. A point on the edge of the wheel travels this distance in one revolution, so its linear speed is
(where 
stands for units of length)
