Which statements describe how the cardiovascular system and the respiratory system work together? Select all that apply.

The cardiovascular system provides gases to the respiratory system to help it function.

The respiratory system provides oxygen used in the cardiovascular system.

The respiratory system provides nutrients and energy to the cardiovascular system.

The cardiovascular system provides the respiratory system with what it needs to function.

the answer is 45 i just did it on oddesy ware

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94