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Zielflug [23.3K]
3 years ago
15

When the figure below is rotated 90 degrees counterclockwise about the origin what would be the new coordinates of point c?

Mathematics
1 answer:
Sedbober [7]3 years ago
6 0
Rotating a figure 90° counterclockwise about the origin results in an ordered pair (x, y) mapping to its image (-y, x).  Thus point C, which is at (3, 5), will map to (-5, 3).
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2 years ago
Joe is hiking a trail that is 30 miles long. after several days, he is two times as far from the beginning of the trail as he is
lora16 [44]
In order to answer this question let's suppose,
Joe is x miles from the beginning and y miles from the end. These assumptions are necessary to answer further:

Now,
x=2y
x+y=30
plugging in x=2y in the above equation
2y+y=30
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Hence, according to our calculations, Joe has to hike 10 miles further
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3 years ago
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White raven [17]

Answer:

domain: {x | x is a real number}

range: {y l y> -8}

Step-by-step explanation:

f(x) = 4x² – 8 is a parabola, a U shape.

Since the stretch factor, 4, is positive, it opens up, there it will have a minimum value, the lowest point in the parabola.

y > -8  because the minimum is -8.

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Quadratic standard form:

f(x) = ax² + bx + c

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7 0
3 years ago
The area of a square is 75 inches squared. A student correctly wrote the length of each side of the square as a√3. What is the v
aev [14]

Answer: 5 in.

Step-by-step explanation:

Given

The area of the square is 75\ in.^2

The side length of the square is a\sqrt{3}

Area of square=(\text{length})^2

\therefore 75=(a\sqrt{3})^2\\\Rightarrow 75=3a^2\\\Rightarrow a^2=25\\\Rightarrow a=5\ in.

Thus, value of a is 5 inch

6 0
3 years ago
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