Answer:
First we substitute
4(-3) - 6(-1)
-7 -6
-13
Step-by-step explanation:
Answer: Point of estimation = 32.60
Margin of error = 1.175.
95% confidence interval would be (81.95,84.45).
Step-by-step explanation:
Since we have given that
n = 49
Average = $32.60
Standard deviation = $5
We need to find:
1) Point of estimation for the mean of the population:
2) At 90% level of confidence, z = 1.645
Margin of error would be
So, Margin of error = 1.175.
3) At 90% level of confidence, interval would be
Hence, 90% confidence interval would be (31.43,33.76).
For this case we must find an expression equivalent to:
By definition of power properties we have to meet:
Then, we can rewrite the expression as:
Answer:
Answer:
m∠BOC = 47°
Step-by-step explanation:
m∠AOC = 180 (as it is a straight angle}
m∠AOC = m∠AOB + m∠BOC
m∠AOB + m∠BOC = 180°
3x + 124 +6x + 29 =180
9x + 153 = 180
9x = 180-153
9x = 27
x = 27/9
x = 3
m∠BOC = 6x + 29 = 6*3 + 29 = 18+29 = 47°
Answer:
0.136
Step-by-step explanation: