Answer:
1. 35 - 176 = -141
2. 0.55 × 1.79 = 0.9845
3. 11.38 × 5.46 = 62.1348
Hope it helps and have a great day! =D
~sunshine~
Answer: 1.2703
Step-by-step explanation:
Given : Sample size : n= 17, which is a small sample (n<30), so we use t-test.
Significance level :
Then , Critical value :
Standard deviation:
The formula to find the margin of error : -
Hence, the error bound (EBM) of the confidence interval with a 90% confidence level.=1.2703
15 x 15 = 175, that is how to find the square root.
2x=9-y
3y=x-8
y=9-2x
3(9-2x)=x-8
27-6x=x-8
35=7x
x=5
2*5=9-y
10=9-y
y-1