Answer:
Answer:C = 8
Answer:C = 8Step-by-step explanation:
-2(4c+16)^1/4+2=-2
Move the constant to the right and change the sign
-2(4c+16)^1/4= -2-2
transform expression
![- 2 \sqrt[4]{4c - 16} = - 4](https://tex.z-dn.net/?f=%20-%202%20%20%5Csqrt%5B4%5D%7B4c%20-%2016%7D%20%20%3D%20%20-%204)
Divide each side by -2
![\sqrt[4]{4c - 16 } = 2](https://tex.z-dn.net/?f=%20%5Csqrt%5B4%5D%7B4c%20-%2016%20%7D%20%20%3D%202)
raise both side of the equation by power of 4
4c-16=16
move constant to the right and change the sign
4c=16+16
4c=32
THEN DIVIDE BOTH SIDES BY 4
C = 8
Answer:
DF = 7.5
Step-by-step explanation:
Since the 3 sides are congruent, then
EF = DE , that is
4.5m - 42 = 1.5m - 9 ( subtract 1.5m from both sides )
3m - 42 = - 9 ( add 42 to both sides )
3m = 33 ( divide both sides by 3 )
m = 11
Thus
DE = 1.5m - 9 = 1.5(11) - 9 = 16.5 - 9 = 7.5
Then
DF = 7.5
The confidence interval is given by

where

is the sample mean and

is the standard error of the mean. In turn, the standard error of the mean is

where

is sample size.
We have

The endpoints of the confidence interval correspond to the finite endpoints of the rejection region. That is,

for which we can solve for

. We get

which is the critical value for a confidence level of

.
Answer:
BC ≈ 8.9 units
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos36° =
=
=
( multiply both sides by 11 )
11 × cos36° = BC , then
BC ≈ 8.9 ( to the nearest tenth )
Answer:
239
Step-by-step explanation: