Caroline resting heart is 52 beats per minute (bpm). When she starts running her heart rate increases 1.25% each second until it reaches maximum heart rate of 175 bpm. Find her approximate heart rare after 30 seconds

74.55 beat per minute

Step-by-step explanation:

Given

Heart beat is 52 beat per minute

i.e. beat per sec

If heart rate is increases 1.25 % each sec

suppose B is the heart beat at first second therefore heat beat at 2 nd second

For 3 rd sec

similarly for 3 sec

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

here is your mark brainliest