Answer:
E. There is sufficient evidence that the mean of the pressure required to open a certain valve has increased.
Step-by-step explanation:
Null hypothesis(H0): μ= 8.4 psi
Alternative hypothesis (H1): μ> 8.4 psi
If the test was due with a representative minimum number of observations. And, if the null hypothesis was rejected, then the mean pressure required to open a valve is greater than 8.4 psi. We can conclude that (at a certain level of confidence) there is sufficient evidence that the mean of the pressure required to open a certain valve has increased.
2.
![\left(\sqrt[3]{x^5}\right)^4=\left(x^{\frac{5}{3}}\right)^4\\\\=x^{\frac{5}{3}\cdot 4}=\bf{x^{\frac{20}{3}}}](https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%5B3%5D%7Bx%5E5%7D%5Cright%29%5E4%3D%5Cleft%28x%5E%7B%5Cfrac%7B5%7D%7B3%7D%7D%5Cright%29%5E4%5C%5C%5C%5C%3Dx%5E%7B%5Cfrac%7B5%7D%7B3%7D%5Ccdot%204%7D%3D%5Cbf%7Bx%5E%7B%5Cfrac%7B20%7D%7B3%7D%7D%7D)
3. The polynomial has 4 terms.
The degree of the polynomial is that of the largest sum of degrees of the variables in any term. That sum is 3+1=4 in the second term. The degree of this polynomial is 4.
4. f(g(x)) = g(x)² +1 = (2x-3)² +1
... f(g(x)) = 4x² -12x +10
_____
Of course, you're familiar with the square: (a+b)² = a² +2ab +b² so you have no problem finding the result when a=2x, b=-3.
Ok
y=mx+b
b=yintercept
that's all you need to know
ok so we just list the yintercepts then order them
10,0.5,3,-5,7,-12
arrange from least to greatest
-12,-5,0.5,37,10
so the order of the functions is
y=-5x-12
y=0.5x-5
y=-4.5+3
y=-2x+7
y=2.5x+10
Answer:
#4
Step-by-step explanation:
Answer:
4....
Step-by-step explanation:
Okay! Free points, uh... 2... and 2... put together... is... four...