Solve the equation.5x + 4 = 49
A. 9
B. 44
C. 40
D. 5
Answer: A
Mathematics
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What force is required so that a particle of mass has the following position function?.
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Mathematics
Simplify the expression.-5(10r + 4) + 7(3r + 8)
A. -70r B. 5r - 1 C. -29r + 4 D. -29r + 36
Mathematics
Find the center and radius of the circle.x2 + (y - 3) 2 = 121
A. Center: (3, 0); radius: 11 B. Center: (-3, 0); radius: 11 C. Center: (0, 3); radius: 11 D. Center: (0 , 3); radius: 121
Mathematics
After beginning antiseptic treatment, the number of bacteria in a population decreases at a rate of 20% per hour, that is, dN/dt = -0.20N, where N is the number of bacteria and t is the time, in hours.
(a) When t = 0 , there are 150,000 bacteria present. Find a function that satisfies this equation. (b) How many bacteria will remain after 6 hr?
Mathematics