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Butoxors [25]
3 years ago
9

Please help. 10 points and brainliest.

Mathematics
1 answer:
Elodia [21]3 years ago
8 0
<h3>Answer: Choice A</h3>

\begin{cases} y \le x+5 \\ y < -x+1\end{cases}

Explanation:

The solid boundary line is the equation y = x+5. The idea is to pick two points on the line and then use them to find the slope. So let's use (-5,0) and (0,5). The slope is...

m = (y2-y1)/(x2-x1)

m = (5-0)/(0-(-5))

m = (5-0)/(0+5)

m = 5/5

m = 1

With the slope m = 1and the point (x1,y1) = (-5,0), we then use the point slope formula

y-y1 = m(x-x1)

y-0 = 1(x-(-5))

y = x+5

The same kind of steps will be used for the dashed line as well.

We see that the shaded region is below the solid boundary line y = x+5. So we will use a less than or equal sign here to indicate to shade below and have the boundary be solid.

The dashed line's equation is y = -x+1, and we also shade below it. So we use a less than sign. We don't use "or equal to" because the dashed line tells the reader "points on this dashed line do not count as solutions".

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PLEASE ANSWER ASAP !!!
Inga [223]

Answer:

The answer is x = -6

PLZ GIVE ME BRAINLIEST!!!!

4 0
3 years ago
Read 2 more answers
use the plot of the concentration of cu(no3)3 versus absorbance provided. if the absorbance of an unknown was determined to be 0
Helen [10]

Using the linear regression equation, the concentration of the unknown solution is 0.2161 M.

Linear regression describes the relationship of two variables. It may not be exact but it is the line that best fit the data. The equation for a linear regression is in the form y = bx + a, where x and y are the two variables.

If the absorbance of an unknown was determined to be 0.67 absorbance units, using the linear regression equation provided from the plot, substitute the value of absorbance to the variable y and solve for the value of x or the concentration.

y = 3.8674x - 0.1657

0.67 = 3.8674x - 0.1657

3.8674x = 0.67 + 0.1657

3.8674x = 0.8357

x = 0.2161

Hence, the concentration is 0.2161 M.

Learn more about linear regression here: brainly.com/question/25311696

#SPJ4

6 0
1 year ago
Convert the angle 0=17pi over 18 radians to degree
Shalnov [3]

Answer:

170°

Step-by-step explanation:

To convert from radians to degrees

degree measure = radian measure × \frac{180}{\pi } , thus

degree = \frac{17\pi }{18} × \frac{180}{\pi }

Cancel π on numerator/denominator and 18/ 180 by 18

degree measure = = 17 × 10 = 170°

8 0
3 years ago
17=14 3/4+ 1/6+ missing number
Lostsunrise [7]
1. 1/3 for 14 3/4+ 1/6= 15 6/12 now 17 -15 6/12 =1 6/12 which is the same as 1 1/3
3 0
3 years ago
Henry had $24.12. His friend Greg had one-
Daniel [21]

Answer: $42.21

Step-by-step explanation:

Henry; $24.12

Gregg; $24.12 / 2= $12.06

Kasey; $ 24.12 / 4= $6.03

$24.12 + $12.06 + $6.03

6 0
3 years ago
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