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adoni [48]
3 years ago
11

This is a timed thing so I need this quick plz

Mathematics
1 answer:
Lady_Fox [76]3 years ago
6 0

The correct answer is a.

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Solve by completing the square. (Enter your answers as a comma-separated list.)
scZoUnD [109]

Answer:

y=\sqrt-{35} -8\\y=\sqrt{35}-8

Step-by-step explanation:

times in the y+9 and y+7 and get y squared + 16x+ 63+80.

6 0
1 year ago
Using polynomial regression fit a cubic equation to the following data: x 3 4 5 7 8 9 11 12 y 1.6 3.6 4.4 3.4 2.2 2.8 3.8 4.6 Pl
luda_lava [24]

Answer:

As problem is of regression analysis,thus r^2 will be 24 and sy/x is 4.

3 0
3 years ago
Complete the point-slope equation of the line through (-1,6)(−1,6)left parenthesis, minus, 1, comma, 6, right parenthesis and (1
velikii [3]

Answer:

y-6 = -\frac{1}{2} (x+1)

Step-by-step explanation:

For this case we have two points given (-1,6) and (1,5)

And we want to complete the point slope equation of the line:

y-6 = m(x-x_o)

We need to find the slope and we can use the following formula:

m = \frac{y_2 -y_1}{x_2 -x_1}

And replacing the info we got:

m= \frac{5-6}{1-(-1)}=-\frac{1}{2}

And then the equation would be given by:

y-6 = -\frac{1}{2} (x- (-1))

And our final answer would be:

y-6 = -\frac{1}{2} (x+1)

3 0
3 years ago
The equation y=750x represents the number of dollars y Olivia earns in x weeks. Determine if there is a constant of variation. I
Klio2033 [76]

Answer:

<h3>There is a constant of variation in the equation and it is 750. This means that the amount olivia earns increases by $750 every week.</h3>

Step-by-step explanation:

Given the equation y = 750x which represents the number of dollars y Olivia earns in x weeks, from the equation, it can be inferred that the number of dollars olivia earns is DIRECTLY PROPORTIONAL to the number of weeks. This relationship is therefore a direct variation.

In direct variation, increase in a variable will lead to corresponding increase in the other variable and vice versa by a factor known as the constant of variation.

For example if y is directly proportional to x, it is written mathematically as shown;

y\alpha x

y=kx\\

k = y/x

where k is the constant of proportionality.

comparing the general expression above with the equation in question,

y = 750x

k = 750

Therefore we can conclude that there is a constant of variation in the equation and it is 750. This means that the amount olivia earns increases by $750 every week.

5 0
3 years ago
A firm employing 100 workers has an average absenteeism of 4%. on a given day what is the probability of no workers being absent
Serggg [28]

Answer:

25

Step-by-step explanation:

3 0
3 years ago
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