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Mademuasel [1]
4 years ago
11

Yo plz help asap!! marking brainiest!!

Mathematics
2 answers:
Mila [183]4 years ago
7 0
The first one is x^2 -9x +20
The second one is x^2 -12x +20
The third one is x^2 +x -20
The fourth one is x^2 - 8x -20
TiliK225 [7]4 years ago
3 0

Answer:

1) a²-9a+20

2)a²-12a+20

3)a²+a-20

4)a²-8a-20

Step-by-step explanation:

use (foil)

front

outside

inside

last

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Find arc DC please help me
emmasim [6.3K]

Answer:

arc ABC = 196°

arc DC = 360 - 196 - 70 = 94°  (which looks out of proportion, but so does angle D)

Step-by-step explanation:

arc ABC = 2(∠D) = 2(98°) = 196°

3 0
3 years ago
Explain why the measure was selected to report on the data set. The mean price of homes sold in the area is $197,000. Home Price
aniked [119]

Answer:

Only one says the mean s higher than the median, so choose that one.  

Step-by-step explanation:

Putting them in order gets yout he following list

$99,000

$106,000

$122,000

$124,000

$130,000

$131,000

$114,000

$497,000

$450,000

The average changes if you increase or decrease any of the prices, thought he median does not unless you mess witht he middle value 130,000.  Since it mentions the outliers lets look at those.  The outliers are the last two because they are more than 3 times the next highest.  So, increasing or decreasing these will effet the average in the same way.  Also, keep in mind what the median is, and if the verage as is is higher or lower than it., that pretty much answers your question.

7 0
3 years ago
Slope- Represented by ____ in y = mx + b (what's the blank?) ​
jeka94

Answer:

2y

Step-by-step explanation:

4 0
3 years ago
Which of the following is the best estimate of the square root of 160
Virty [35]

Answer:

12-13

Step-by-step explanation:

the actual number is 12.64 whether your round up or down is up to you

6 0
3 years ago
Read 2 more answers
Find the slope of a line parallel to this given line
dybincka [34]

bearing in mind that parallel lines have the same exact slope, then any parallel line to the one above will have the same slope as that one.

\bf \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \qquad \implies y = \stackrel{\stackrel{m}{\downarrow }}{-\cfrac{7}{3}}x-4

3 0
3 years ago
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