The roots of the quadratic equation 
are
.
Here the given quadratic equation is 
. Here 
.
The roots are
Answer:
multiply by 2
Step-by-step explanation:
5x2=10
10x2=20
Answer:
4n - 4
Step-by-step explanation:
3n-4 = the amount of tickets Evie has
n = the amount of tickets Mark has
3n - 4 + n = 4n - 4
Answer:
560 ft/min
Step-by-step explanation:
Let r represent Samantha's running rate in feet per minute. Then r-230 is her walking rate. We can use the relation ...
distance = speed × time
to write an equation for the total distance Samantha went.
20r + 15(r -230) = 16150
35r - 3450 = 16150 . . . . eliminate parentheses, collect terms
35r = 19600 . . . . . . . . . . add 3450
r = 560 . . . . . . . . . . . . . . divide by the coefficient of r
Samantha ran 560 feet per minute.
(-2, 2) multiplied by 2.5 is given by 2.5(-2, 2) = (-5, 5)
while (2, 1) multiplied by 2.5 is given by 2.5(2, 1) = (5, 2.5)
