Yes; for example triangles, squares, and rectangle.
Answer
=21−7⋅k
Step-by-step explanation: −7⋅(k−3))
=−7⋅k+7⋅3
Hey there! :)
Answer:
Domain: (-∞, ∞)
Range: [-1, ∞)
Step-by-step explanation:
This is an absolute-value function. (Graphed below) The vertex is at (-3, -1) which consists of the minimum y-value of the function. Therefore:
Domain: (-∞, ∞)
Range: [-1, ∞)
Answer:
(507.05, 592.95)
Step-by-step explanation:
Given data:
sample mean = $550, sample standard deviation S = $60.05
95% confidence interval , n = 10
For 95% confidence interval for the mean
mean ± M.E.
where M.E. is margin of error = ![t_{n-1}, \alpha/2\times\frac{S}{\sqrt{n} }](https://tex.z-dn.net/?f=t_%7Bn-1%7D%2C%20%5Calpha%2F2%5Ctimes%5Cfrac%7BS%7D%7B%5Csqrt%7Bn%7D%20%7D)
Substituting the values in above equation
![=t_{10-1}, 0.05/2\times\frac{60.05}{\sqrt{10} }](https://tex.z-dn.net/?f=%3Dt_%7B10-1%7D%2C%200.05%2F2%5Ctimes%5Cfrac%7B60.05%7D%7B%5Csqrt%7B10%7D%20%7D)
= 2.62×18.99
=42.955
= 550±42.95
=(507.05, 592.95)