keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

well then therefore

so we're really looking for the equation of a line with slope of -1/3 and that passes through (1, -3 )

Answer:
3. 2 6 30 6. 8:5
3 9 45
Step-by-step explanation:
B= 30
a2+b2=c2
72^2+b^2 = 78^2
5184+b^2 = 6084
b2 = 900
b = 30
Answer: Brett runs for 1.35 miles in total
Step-by-step explanation:
1 4
0.15
x 9
———
1 .35