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3 years ago

Asap!! 50 points for who ever gets it right

Mathematics

2 answers:

PolarNik [594]3 years ago

7 0

Step-by-step explanation:

-90º or 270º rotation

Horizontal transformation to the right by 2 units.

1. (x, y) -> (-y, x)

2. (x, y) -> (x + 2, y)

Rasek [7]3 years ago

4 0

Answer:

Step-by-step explanation:

a) First is a 90º rotation (counter-clockwise) with respect to the origin.

Next is a horizontal transformation of +2 units.

b) Transformation one is (x, y) -> (-y, x)

Transformation two is (x, y) -> (x + 2, y)

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A waterfall has a height of 1900 feet. A pebble is thrown upward from the top of the falls with an initial velocity of 12 feet p

saw5 [17]

Answer:

Step-by-step explanation:

h is the height of the pebble after a certain amount of time has gone by. Since we are told to find that time when the pebble is on the ground, we say that h = 0 since the height of something on the ground has no height at all. Then factor the quadratic.

$-16t^2+12t+1900=0$

Throw that into the quadratic formula or however you were taught to factor irrational quadratics (maybe completing the square?) to get that

t = 11.27869 sec and t = -10.52869 sec

Since we all know that time will never carry a negative value, we will disregard it and go with 11.27869 seconds. Not sure to where you are told to round.

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3 years ago

Somebody know how to do this?

Lubov Fominskaja [6]

Answer:

x=1

Step-by-step explanation:

55+70=125

sum of angles in a triangle is 180 so

180-125=55

54x+1=55

x=1

6 0

3 years ago

Can someone help with these two questions

kherson [118]

11,513 is the answer I really don't know how to write it all out sorry

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2 years ago

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n200080 [17]

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Mice21 [21]

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3 years ago