Answer: The area of the circle with a diameter of 10 cm is 78.5 cm2.
Answer:
is it ok to put engish
Step-by-step explanation:
Answer:
2
Step-by-step explanation:4 / 4 * 2
4 / 4 = 1
1 * 2 = 2
2 pounds
Construct a 99% confidence interval for life
expectancy of a new GE light bulb:<span>
n = 64
Xbar = 750
s.d. = 20
Critical z value at 99% confidence = 2.576
margin of Error, E = 2.576*20/√64 = 6.44
<span>99% confidence interval for life expectancy of a
new GE light bulb = (Xbar - E; Xbar + E) = (743.56; 756.44)</span></span>