Answer:
is it your homework?
Step-by-step explanation:
Answer:
y = 20
Step-by-step explanation:
<h3>i) move 9 to the right-hand side and change its sign</h3>
<h3>ii) calculate the difference</h3>
<h3>iii) change the signs on both sides of the equation</h3>
<h3>iv) square both sides of the equation</h3>
<h3>v) move -4 to the right-hand side and change its sign</h3>
<h3>vi) add the numbers</h3>
Answer:
10
Step-by-step explanation:
area=√3/4×a^2
100√3 = √3×a^2
a^2 = 100
a=10
side = 10
Quotient of x and 9=
And 7 less than from it means=
(Answer)
Answer:
[143.61, 156.39]
Step-by-step explanation:
Because the population standard deviation is not available AND the sample size is less than 31, we can use a t procedure here.
Plug these values into your calculator:
Sample mean = 150
Sample size = 16
Standard deviation = 12
Confidence level = 95% = 0.95
and get [143.61, 156.39] as your confidence interval
