Answer:
C) (-3,-1)
Step-by-step explanation:
C) (-3,-1)
Answer:
B
Step-by-step explanation:
You can rule out all others. A is wrong because a triangle cannot be acute and obtuse at the same time. C is wrong because a polygon dosen't neccassarily need to be a triangle, for example, a polygon is a closed shape, so it could be a rectangle. It isn't D because there are obtuse triangles out there. So, the only one left is B.
Answer:
48 and 4
Step-by-step explanation:
If we assume that
to be the random variable that proceed the normal distribution with mean
and a standard deviation ![\dfrac{\sigma }{\sqrt{n}}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Csigma%20%7D%7B%5Csqrt%7Bn%7D%7D)
Given that:
mean =48
standard deviation = 16
sample size = 16
The population mean is same as the population mean in sampling distribution that is 48.
The standard deviation of the sampling distribution is therefore calculated as:
standard deviation = ![\dfrac{\sigma }{\sqrt{n}}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Csigma%20%7D%7B%5Csqrt%7Bn%7D%7D)
standard deviation = ![\dfrac{16 }{\sqrt{16}}](https://tex.z-dn.net/?f=%5Cdfrac%7B16%20%7D%7B%5Csqrt%7B16%7D%7D)
standard deviation = ![\frac{16}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B16%7D%7B4%7D)
standard deviation = 4
Thus; the mean and the standard deviation of the sampling distribution is 48 and 4
Answer:
2(x + 4) - 1.
Step-by-step explanation:
The sum of a number and 4 = x + 4
Twice this = 2(x + 4)
So the answer is 2(x + 4) - 1.
Answer:
$ 158.95
Step-by-step explanation:
Reduction = 25% of 199
= 0.25 * 199
= $ 49.75
Price of the tablet after reduction = 199 - 49.75 = $ 149.25
Sales tax = 6.5% of 149.25
= 0.065 * 149.25
= $ 9.70
Total price that he need to pay = 149.25 + 9.70
= $ 158.95