Answer:
731
Step-by-step explanation:
to find out the percent you multiply 340 by 115% which will look like this 340 times 1.15 equals to 391
to find out how many students will enroll next year you add 340 and 391 and it equals to 731.
Answer:
The 95% confidence interval for mean compressive strength is:
Step-by-step explanation:
We have a sample of n=12 specimens, with sample mean=3259.9 and sample standard deviation = 35.57.
We know the population is normally distributed.
For a 95% confidence interval and df=n-1=11, the t-statistic is t=2.201.
Then, the CI can be expressed as:
Answer:
The total number of people at the stadium was 3200.
Step-by-step explanation:
5% = 160
160 x 20= 3200
Since 20 x 5 is 100, I multiplied 160 by 20 to get 3200.
we can multiply the equation with the invers of that fraction
Answer:
x=45°
Step-by-step explanation:
The 160° plus the unlabeled angle to the left of it are supplementary, meaning when added they equal 180°. The unlabeled angle will therefore be 20°. The angle across from the 20° will also be 20°. 115° + 20° = 135°. Now all that is left on the top half is x.
180° - 135° = 45°
