Answer:
8.51%
Step-by-step explanation:
Let us assume the radius of the sphere is r. The surface area of a sphere is:
Surface area = 4πr².
There is a 4% error in the measurement of the radius, therefore the radius being measured = (100% - 4%)r = (96%)r = 0.96r
The surface area as a result of error is:
Surface area after measurement = 4π(0.96r)² = 3.6864πr²
The percentage error is the ratio of the difference between the actual and measured value to the measured value. It is given as:
Answer:
just divide 120 divided by 30 is 4 I know it right bc I had the same question on into math if thats what you were on
Step-by-step explanation:
Answer: a. 9:5
b: 14:9
Step-by-step explanation:
if there are 14 people in a class given 5 boys, then there are 9 girls. The values needed are boys (5), girls (9), and total students (14). Ratio Girls : Boys is 9 : 5 and Ratio All Students : Girls is 14 : 9
Answer:
The answer is B
Step-by-step explanation:
$2.50+$1.95=$27.46
-2.50
24.69
24.63/1.95
equal $12.80 or 12.8