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PtichkaEL [24]
3 years ago
7

What is the square root of 81 and multiplied that by 2?

Mathematics
1 answer:
vovikov84 [41]3 years ago
4 0

Answer: 18


Step-by-step explanation:

Square root of 81 is 9 because 9*9=81 then 9*2=18

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In which quadrant is (1/2, -1.8)? Quadrant I Quadrant II Quadrant III Quadrant IV
Nadya [2.5K]

Answer:

(1/2, -1.8) belongs in quadrant 4

quadrant 4 is a (positive, negative)

7 0
3 years ago
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the cheerleading squad made 4 5/8 gallon of lemonade to sell at the basketball game. they sold 2 7/8 gallons. how many gallons w
andrezito [222]
4 5/8 = 37/8
2 7/8= 23/8
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What’s the surface area in square centimeters???
choli [55]

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Step-by-step explanation:

3 0
3 years ago
Acellus
shtirl [24]

Answer:

(-2, 3)

Step-by-step explanation:

Think of this in the future:

Counter-clockwise rotations:

90-degree --> (x,y) = (-y,x) ex. (3,2) --> (-2,3)

180-degree --> (x,y) = (-x,-y) ex. (3,2) --> (-3, -2)

270 degree --> (x,y) = (y,-x) ex. (3,2) --> (2, -3)

Clockwise rotations:

90-degree --> (x,y) = (y, -x) ex. (3,2) --> (2, -3)

180-degree --> (x,y) = (-x,-y) ex. (3,2) --> (-3,-2)

270-degree --> (x,y) = (-y, x) ex. (3,2) --> (-2,3)

7 0
3 years ago
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Determine of which lines, if any, are parallel or perpendicular. Explain.
nalin [4]

Answer:

lines b and c are perpendicular

Step-by-step explanation:

Use slope

slope for parallel is the same

slope for perpendicular is negative reciprocal

line a slope- 1-3/-2-0 is -2/-2 or 1

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line c slope- 3-1/1-4 is 2/-3 or - 2/3

none are the same so none are parallel

- 2/3 is the negative reciprocal of 3/2 so lines b and c are perpendicular

8 0
3 years ago
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