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4 years ago

Which line is perpendicular to y = 1/6x - 8?

Mathematics

1 answer:

Ainat [17]4 years ago

3 0

I used a graphing calculator, the correct answer is y=-6x+3. I can provide the work if you want.

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Compute the least-squares regression line for predicting y from a given the following summary statistics. Round final answers to

qwelly [4]

Answer: Regression line equation: $\hat{y}=-1.008x+39.1704$

Step-by-step explanation:

Equation of least-squares regression line for predicting y :

$\hat{y}=b_1x+b_o$

, where $\text{Slope} (b_1)=r\dfrac{s_y}{s_x}$ , $\text{intercept}(b_0)=\bar{y}-b_1\bar{x}$

Given: $\bar{x}=8.8,\ s_x=1.5,\ s_y=1.8,\ \bar{y}=30.3,\ r=-0.84$

Then,

$b_1=(-0.84)\dfrac{ 1.8}{ 1.5}\\\\\Rightarrow\ b_1=-1.008$

Now,

$b_0=30.3-(-1.008)(8.8)=30.3+8.8704\\\\\Rightarrow\ b_0=39.1704$

Then, Regression line equation: $\hat{y}=-1.008x+39.1704$

6 0

3 years ago

Would Ray make more money working 40 hours a week for two weeks or working 32 hours one week and 46 hours the next? Justify your

Anna007 [38]

Answer:

40 hours a week for two weeks

Step-by-step explanation:

If Ray is being paid the same, he would make more money from working 40 hours for two weeks. That would be a total of 80 hours while the 32+46 is only 78 hours.

4 0

3 years ago

Please help me with this equation

natita [175]

Answer:

u just expand the brackets out and make a linear equation to solve from there

Step-by-step explanation:

6 0

3 years ago

Need help please and thank you ❤️

Irina18 [472]

Answer:

1)3.2 pints

2)59.5248 pounds

3)35 cm

4)39431.4 millimeters

8 0

4 years ago

A small restaurant was purchased for 316000 with no down payment and a 6.6% loan for 10 year. Find the monthly payment

DiKsa [7]

We will have the following:

First, we calculate the total payment per year:

$p_y=316000\cdot0.066\Rightarrow p_y=20856$

Now, we calculate the monthly payment:

$316000=\frac{p}{0.0055}(1-\frac{1}{(1+0.066)^{120}})\Rightarrow1738=p(0.9995331951\ldots)$ $\Rightarrow p=\frac{1738}{(1-\frac{1}{(1+0.066)^{120}})}\Rightarrow p=1738.811686$

So, the monthly payment will be approximately $1738.811686.

4 0

1 year ago