A doctor observes the electrical activity of the heart of a patient over a period of time. The graph below shows the electrical activity, E, in volts, of the patient’s heart over time t, measured in seconds. Each spike corresponds to one heart beat. Approximately how much time is between this patient’s heartbeats?

about one second

Step-by-step explanation:

step-by-step explanation:

a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 2 times the age of the child?

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this needs to be the answer format, or else your answer is incomplete.

if the number of years is x, then the equation is

in __ years