Answer:120
Step-by-step explanation:
calculate the sum of the negetive numbers 3x-40
=120
Marcus should have substituted -10for b, not 10
Marcus should have subtracted 4(1)(25) in the square root
This equation, when solved correctly, only has one real number solution
So A, C, D
Find slope (y2-y1)/(x2-x1)
Pick points: (1,10) , (2,8)
(8-10)/(2-1) = -2/1 = -2
Y = -2x + b
10 = -2 + b, b = 12
It would be the first response
12 = initial while -2 is rate of change
600 words
90 words divided 15% is 6 words for 1% so 6 times 100 is 600
hope this helps!