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gtnhenbr [62]
3 years ago
7

For f(x), evaluate the following: a. f(0) b. f(6)

Mathematics
1 answer:
Veronika [31]3 years ago
4 0
The function needs to be defined first.
eg. f(x)= x+1
Then, f(1)= 1+1=2
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3[x]+9 what is the graph?
ipn [44]
So, you can do this one of two ways.

The first is knowing what the numbers in your equation represent:

For example: y=mx+b in this case "b" is 9. b is the y-value when x=0. So the first point on our graph is (0,9). Next we have to pick an xvalue to solve for another y-coordinate.

I chose x= -3. Plug x into the equation to get y.
y=3x+9
y=3(-3)+9
y=(-9)+9
y=0

So, our second point is (-3,0).

connect the points with a ruler to graph the line.

4 0
3 years ago
The amount of lateral expansion (mils) was determined for a sample of n = 8 pulsed-power gas metal arc welds used in LNG ship co
Alona [7]

Answer:

95% Confidence interval for the variance:

3.6511\leq \sigma^2\leq 34.5972

95% Confidence interval for the standard deviation:

1.9108\leq \sigma \leq 5.8819

Step-by-step explanation:

We have to calculate a 95% confidence interval for the standard deviation σ and the variance σ².

The sample, of size n=8, has a standard deviation of s=2.89 miles.

Then, the variance of the sample is

s^2=2.89^2=8.3521

The confidence interval for the variance is:

\dfrac{ (n - 1) s^2}{ \chi_{\alpha/2}^2} \leq \sigma^2 \leq \dfrac{ (n - 1) s^2}{\chi_{1-\alpha/2}^2}

The critical values for the Chi-square distribution for a 95% confidence (α=0.05) interval are:

\chi_{0.025}=1.6899\\\\\chi_{0.975}=16.0128

Then, the confidence interval can be calculated as:

\dfrac{ (8 - 1) 8.3521}{ 16.0128} \leq \sigma^2 \leq \dfrac{ (8 - 1) 8.3521}{1.6899}\\\\\\3.6511\leq \sigma^2\leq 34.5972

If we calculate the square root for each bound we will have the confidence interval for the standard deviation:

\sqrt{3.6511}\leq \sigma\leq \sqrt{34.5972}\\\\\\1.9108\leq \sigma \leq 5.8819

6 0
3 years ago
Scott signed a two-year lease for a monthly rent of $505. How much will
netineya [11]
There are 12 months in a year. The rental term is for 2 years, that's a total of 24 months.

They pay $505 every month

24 months × $505 = $12,120 paid over the lease term.
answer is D.
4 0
3 years ago
Read 2 more answers
2 sin x + V3 = 0<br> i need help answering this
Lady_Fox [76]

Answer:

2 sin x + √3 = 0

2sinx=-√3

sinx=-√3/2

x=sin-¹(-√3/2)(sin-¹ means inverse of sin)

x=-60

7 0
3 years ago
Solve the formula for the specified variable. A=6P+4Prt for t
KatRina [158]
Your answer will be t = -3P/2Pr + A/4Pr. :)
6 0
3 years ago
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