5x15=75. 4x10=40. 75+40=115
In total he spent $115
Answer:
Option 1 is the answer.
Step-by-step explanation:
Because the domain is x and horse can be between 0 and 6 hours running.
Answer:
-16, -4
Step-by-step explanation:
x² +20x +100 -36 = 0
x² +20x +64 = 0
x² -Sx +P =0, where S= sum of roots, P=product of roots
so what 2 numbers have
S= -20 and P = 64 , ...that ul be -4, -16
or you can use factoring:
( x+16) ( x+4) = 0
x+16 = 0 , x= -16
x+4 =0, x = -4
or you can do quadratic equation, or graph ...