1. A and B are both solutions
2. B
3. C
I hope this helps!
80 ...........................
Answer:
B) 47.5%
Step-by-step explanation:
Refer to the normal distribution chart attached. If 130 is 2 standard deviations higher than the mean (ignore the numbers beneath the percentages), then by the empirical rule, this means that 34%+13.5%=47.5% of adults are between IQs of 100 and 130. Therefore, option B is correct.
The area of the quarter circle with radius 3ft is
Area of a quarter circle is given by the formula:
Where r represents the radius of the circle
In the quarter circle shown, the radius, r = 3 feet
π = 3.14
Substitute π = 3.14 and r = 3 into the formula
The area of the quarter circle with radius 3ft is
Learn more here: brainly.com/question/25843249