A researcher at the University of Washington medical school believes that energy drink consumption may increase heart rate. Suppose it is known that heart rate (in beats per minute) is normally distributed with an average of 70 bpm for adults. A random sample of 25 adults was selected and it was found that their average heartbeat was 73 bpm after energy drink consumption, with a sample standard deviation of 7 bpm. Test the hypotheses at the 5% significance level to determine if we can conclude that energy drink consumption increases heart rate.

this is answer of 144 cubic meters

is should be y = 5x

step-by-step explanation:

correct me if im wrong

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

how many friends does he have? i think some of the information got cut off in the problem.