First, we have to find the length of each side of triangle. Equilateral triangle means 3 sides r in same length, so each side will be 21 ÷ 3 = 7
Now we need to calculate the height of the triangle. We can do this by Pythagoras theorem
Let the height be h
(7/2)^2 + x^2 = 7^2
The area should be 6.0621778265
Or u can say 6.06 corrected to 3 sig fig
Answer:
C.) n < 6
Step-by-step explanation:
Subtract 8:
n/-3 > -2
Multiply by -3. The negative multiplier requires the comparison be reversed:
n < 6
Answer:

Step-by-step explanation:
A 99% confidence interval for the mean sodium content in Oriental Spice Sauce is,
First, compute t -critical value then find confidence interval.
The t critical value is,
The sample size is small and two-tailed test. Look in the column headed
and the row headed in the t distribution table by using degree of freedom is,
d . f . =n-1
=170-1
=169
The t critical value is 2.605 .

A
confidence interval for the mean sodium content in Oriental Spice Sauce is
Answer:
the width is 4 units
Step-by-step explanation:
because 4+ 1 = 5 is the length
4 is the width
20 is the area