The standard deviation of pulse rates of adult males is more than 11 bpm. For a random sample of 152 adult​ males, the pulse rates have a standard deviation of 11.2 bpm. Required:
a. Express the original claim in symbolic form.
b. Identify the null and alternative hypotheses.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

a

step-by-step explanation:

answerim :

n

step-by-step explanation:

im not sure but my dad knows