Answer:
52
Step-by-step explanation:
sorry if it's wrong
Answer:
it is - 15 please mark me brainliest
<span>x^2 - 12x - 45
= (x - 15) (x + 3) .........</span><span>factored form</span>
The Square Root of 245 is 15.65 (rounded to 2 dec. Places)
The probability would be 0.1971.
We will calculate a z-score for each end of this interval.
z = (X-μ)/σ
For the lower limit:
z = (1100-1050)/218 = 50/218 = 0.23
For the upper limit:
z = (1225-1050)/218 = 175/218 = 0.80
Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of, less than, the lower limit is 0.5910. The area under the curve to the left of, less than, the upper limit is 0.7881. To find the area between them, we subtract:
0.7881 - 0.5910 = 0.1971
