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2 years ago

Which quadrant is (8, -1) in?

Mathematics

2 answers:

jolli1 [7]2 years ago

4 0

Its easiest to do this if you look at a picture of the 4 quadrants. The 4 quadrants are numbered counterclockwise, starting the with top right quadrant (see picture 1).

Plot/visualize (8, -1) on the coordinate plane (see picture 2). x=8, so it'll be to the right of y-axis. y=-1, so it'll be below the x-axis. That puts (8, -1) in Quadrant IV.

The answer is D) IV.

lisabon 2012 [21]2 years ago

3 0

It’s in the 4th quadrant because the x value is 8 (positive ) so its on the right but the y value is -1 (negative) so it’s below the x-axis

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10 men and 5 women are meeting in a conference room. Four people are chosen at random from the 15 to form a committee. (a) What

nata0808 [166]

Answer:

Step-by-step explanation:

Given

There are 10 men and 5 women in a conference room

total People=15

(a)Probability that the committee consists of 2 men and 2 women

we have to select from 10 men and 5 women

$P=\frac{^5C_2\times ^{10}C_2}{^{15}C_4}$

(b)Bob and Jane end up on the same committee

as bob and Jane are necessary to include so there are 4 women and 9 men left to select remaining 2 person

$P=\frac{^{13}C_2}{^{15}C_4}$

(c)Bob is in the committee but Jane is not

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3 years ago

Use the inverse of the function y = x2 − 18x to find the unknown values.

Lerok [7]

ANSWER

b=1, c=81, and d=9.

EXPLANATION

The given function is:

$y={x}^{2}-18x$

This function is the same as:

$y={(x - 9)}^{2}-81$

To find the inverse of this function, we interchange x and y.

$x={(y-9)}^{2}-81$

Solve for y:

$x+81={(y- 9)}^{2}$

Take square root of both sides:

$\pm \sqrt{x + 81}=y-9$

$y=\pm \sqrt{x + 81}+9$

Hence,

b=1, c=81, and d=9.

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2 years ago

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