Answer:
A.
5
8
−
3
8
=
2
0
B.
5
8
−
3
8
=
2
8
C.
5
8
+
3
8
=
8
8
D.
5
8
+
3
8
=
8
16
Step-by-step explanation:
Answer:
n = -2
Step-by-step explanation:
6n = 2n-8
4n = -8
n = -2
It is 22 cuz 5 * 2 is 10 and 10 * 2 IS 20 + 2=22
Answer: 2.46
Step-by-step explanation:
Formula for x-score is given by :-
![Z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7B%5Coverline%7Bx%7D-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D)
, where
= Sample mean ,
= population mean,
= population standard deviation, n= sample size.
As per given , n=10
= $29,056
= $3,339
= $31,650
Then,
![z=\dfrac{ 31650-29056}{\dfrac{3339}{\sqrt{10}}}\\\\=\dfrac{2594}{\dfrac{3339}{3.16227766017}}\\\\=\dfrac{2594}{1055.88451073}=2.45670807142\approx 2.46](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B%2031650-29056%7D%7B%5Cdfrac%7B3339%7D%7B%5Csqrt%7B10%7D%7D%7D%5C%5C%5C%5C%3D%5Cdfrac%7B2594%7D%7B%5Cdfrac%7B3339%7D%7B3.16227766017%7D%7D%5C%5C%5C%5C%3D%5Cdfrac%7B2594%7D%7B1055.88451073%7D%3D2.45670807142%5Capprox%202.46)
Hence, the z-score = 2.46
As we know these two lines mean | | a modulus sign. The modulus symbol is sometimes used in conjunction with inequalities. A modulus sign in simple words just ignores the sign and gives us the absolute value.
For example in this case the modulus gives us 4 x 2 - 3. As you can see the modulus sign has ignored the original negative signs with the numbers.
So after evaluating the equation the answer comes out to be 8 - 3 which is equal to 5.