In 1995, the average life expectancy in the united states was 75.8 years. the average life expectancy in 2015 was 78.8 years. what is the percentage increase in life expectancy in the last 20 years? choose the closest answer.

3.5%

4%

4.5%

5%

Option B, %

Explanation:

The average life expectancy in the United States in 1995 years

The average life expectancy in the United States in 2015 years

Change in average life expectancy in the United States from 1995 to 2015

years

The percentage increase in life expectancy in the last 20 years is equal to change in life expectancy in last 20 years divided by average life expectancy in the base year

%

≈ %

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u