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adoni [48]
3 years ago
10

Question

Mathematics
1 answer:
Mariulka [41]3 years ago
7 0

Answer:

do you have a picture of the polygon

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No work , No credit
Rzqust [24]

Answer:

are they all questions

Step-by-step explanation:

it's so confusing

4 0
3 years ago
Y=x-7<br> 6x-6y=-7<br><br> elimination method
Archy [21]

Answer:

The system has no solutions.

Step-by-step explanation:

Let's write it in a more traditional form

\left \{ {{x-y=7} \atop {6x-6y=-7}} \right. \\

Try staring at it for a bit, and then realize what you are being asked: find two numbers whose difference is - at the same time, 7, and -7/6. That's impossible.

Same result you get by elimination. Multiply the first by 6 and either add or subtract - your choice the second. In either case you will get 0 = 35 or 0=49, which are obviously absurd

7 0
3 years ago
The paired data below consist of the costs of advertising​ (in thousands of​ dollars) and the number of products sold​ (in thous
Nikitich [7]

Options :

(A.) y=558-273x (B.) y=264+142x (C.) y = 55.8 +2.79x (D.) y= -26.4-1.42x

Answer:

C.) ŷ = 2.79X + 55.8

Step-by-step explanation:

Given the data:

cost (x): 9 2 3 4 2 5 9 10

Number of products sold: 85 52 55 68 57 86 83 73

Using the online regression calculator to generate a linear regression plot of the given data: the model obtained is given below

ŷ = 2.79X + 55.8

With y being the predicted or dependent variable

Slope or gradient of the line = 2.79

X = the independent variable

55.8 = the intercept.

3 0
3 years ago
What is the length of AC?
Scorpion4ik [409]

Answer:

126 units

Step-by-step explanation:

Ed=9 units,Ab= 81 units, Ec=x and AC=140

4 0
3 years ago
After reading 7/9 of a book, 40 pages are left. Find the total number of pages in the book​
dimaraw [331]

Answer:

180 pages

Step-by-step explanation:

let x be the number of pages in the book , then

\frac{7}{9} x + 40 = x ( multiply through by 9 to clear the fraction )

7x + 360 = 9x ( subtract 7x from both sides )

360 = 2x ( divide both sides by 2 )

180 = x

The total number of pages in the book is 180

6 0
3 years ago
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