0.3r/0.3=2.1/0.3
r=2.1/0.3
r=7
5x5=25 so 25 different ways
Answer:
7/10
Step-by-step explanation:
1. Simplify - 1 3/2 - 1 4/5
2. Subtract the whole numbers to make it easier - 1-1 = 0
3. Combine fractions - 3/2 - 4/5 = 7/10
4. 0 + 7/10 = 7/10
So, the final answer is 7/10.
Hope this helps! :)
Also you should use Symbolab, it's really helpful
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>
No answer is possible.
Without the picture ... or a detailed explanation ...
it's not possible to tell what 'b' is.