Answer:
3/5
Step-by-step explanation:
Using SOHCAHTOA, we know that cos Ф = 
So, we know that cos Ф = 
or, using the hint, 3/5
-160%, 2.5, 325%, 4
In order to make a percentage you take the decimal and move it twice (i.e .97 = 97%) so that would mean that 325% as a number instead of a percentage would be 3.25 and the same for -160% (-1.6).
4 minutes/60 minutes
Divide the numerator and denominator by 4
1/15
Final answer: 1/15
Answer: r≈6
Step-by-step explanation: Using the formula
C=2πr
Solving forr
r=C
2π=37.7
2·π≈6.00014
Answer:
(-3.07, 11.07)
Step-by-step explanation:
Given that a sports writer wished to see if a football filled with helium travels farther, on average, than a football filled with air. To test this, the writer used eighteen adult male volunteers. These volunteers were randomly divided into two groups of nine subjects each.
Group Group One Group Two
Mean 300.00 296.00
SD 8.00 6.00
SEM 2.67 2.00
N 9 9
The mean of Group One minus Group Two equals 4.00
standard error of difference = 3.333
df = 16
t = 1.2000
Margin of error = 3.3333* t critical = 3.3333*2.121
95% confidence interval of this difference: From -3.07 to 11.07
