Answer: 
Step-by-step explanation:
1. To write the number given in the problem (4,498,000,000) in scientific notation you must write it in the following form:
2. The decimal point must be written after the first digit and the exponent b must be positive and indicates the number of times the decimal point is move to the right. Therefore, you have:
Answer:
A
Step-by-step explanation:
Image result for what is always true about a line that slants downward from left to right
A line that slants down from left to right has a negative slope. Horizontal and vertical lines also have a slope. A horizontal line has a change in x, but it does not have a change in y. The slope of a horizontal line is 0.
Answer:
Rational numbers
Step-by-step explanation:
This is because you can write it as a fraction, percentage, and it stops at some point.
Answer:
Step-by-step explanation:
From the question we are told that:
Sample 1 
Sample 1 mean blood pressure 
Sample 1 variance 
Sample 2 
Sample 2 mean blood pressure 
Sample 2 variance 
Generally the equation for the test of statistic is mathematically given by
therefore the samples test for comparing the two population means
The answer would be 19.87
7.2*12*.23= 19.872
Because two is lower then 5 we could round to 19.87
