A bamboo plant is measured to be 20 inches tall. After a certain number of hours, it had grown to be 30 inches tall. If the plant grows at a rate of 5/4 inches per hour, how many hours were there between measurements?

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

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