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3 years ago

In which quadrant are all coordinates positive? I II III IV

Mathematics

2 answers:

Vlad1618 [11]3 years ago

8 0

<span>In which quadrant are all coordinates positive?

answer is I (first choice)</span>

erastovalidia [21]3 years ago

7 0

The answer is quadrant I

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Find the area A of the sector of a circle of radius 90 in formed by central angle 1/6 radian.

miv72 [106K]

Answer:

2121 $in^{2}$ Rounded to the nearest inch.

Step-by-step explanation:

A = $\pi r^{2}$ Is the formula for a circle, but we only have a portion of a circle so we will have to adjust the formula for a part of the circle.

A = $\frac{\frac{\pi }{6} }{2\pi }$ $\pi r^{2}$ The $\frac{\pi }{6}$ is the part of the circle and the whole circle is 2 $\pi$

$\frac{\frac{\pi }{6} }{2\pi }$ is the same as $\frac{\pi }{6}$ ÷ $\frac{2\pi }{1}$ Which is the same as $\frac{\pi }{6}$ x $\frac{1}{2\pi }$ Which is the same a $\frac{1}{12}$

A = $\frac{1}{12}$ $\pi$ $90^{2}$

A = $\frac{1}{12}$ (3.14)(90)(90) = 2119.5. When you use the $\pi$ on your calculator you get a slightly different number. This is due to rounding.

A = 2120.575041

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1 year ago

5. what is the theoretical probability that a coin toss results in one head and one tail showing?

Alenkasestr [34]

There are two sides (heads and tails). So one head would be 1/2, and one tail would also be 1/2.

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2 years ago

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timurjin [86]

Answer:

Step-by-step explanation:

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3 years ago

Two pairs of socks and a pair of slippers cost $30. Five pairs of socks and a pair of slippers cost $42. Let x represent the cos

UkoKoshka [18]

Answer:

4, 22 See below

Step-by-step explanation:

2x + y = 30

5x + y = 42

Subtract the first from the second

3x = 12

x = 4 so socks cost $4

Put that into one of the original equations

2x + y = 30

2(4) + y = 30

8 + y = 30

y = 22 slippers cost $22

8 0

2 years ago

Read 2 more answers

Whats the unit rate of 122 and 4?

ANTONII [103]

Answer: 30.5

Step-by-step explanation:

30.5 times 4 equals 122

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3 years ago