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yarga [219]
3 years ago
14

I need help!!!! Please if you get it right i will mark you brainliest!

Mathematics
2 answers:
USPshnik [31]3 years ago
7 0
If both are negative then it is located on the 3rd quadrant


hope this helps
otez555 [7]3 years ago
4 0
An example of a point that has x < 0 and y < 0 is (-1,-1).
(-1,-1) would lie in Quadrant III (3).

So, if x < 0 and y < 0, the point (x,y) would be located in Quadrant III.

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In your own words, explain what a rational expression is and give and example of one.
patriot [66]

Answer:

A rational expression is when the numerator and the denominator are polynomials. An example is  5/x − 2

8 0
3 years ago
Does anybody have a REAL answer for this?
S_A_V [24]
Area of square = 15 x 15 = 225 cm^2
area of circle = pi r^2 = (3.14)(15)(15) = 706.5 cm^2

1/4 of circle = 706.5 / 4 = 176.6

so area of yellow region = 225  - 176.6 = 48.4 cm^2

answer
48.4 cm^2
6 0
2 years ago
How are the measures of angles, arcs and segments formed by secant lines that intersect within a circle related?
Drupady [299]

Answer:

The answers below ._.

Step-by-step explanation:

A secant is a line that intersects a circle in exactly two points. When a tangent and a secant, two secants, or two tangents intersect outside a circle then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs.

6 0
3 years ago
Read 2 more answers
If the standard deviation of a set of data is zero, what can you conclude about the set of values? The sum of the deviations fro
Rashid [163]

Answer:

All values are identical.

Step-by-step explanation:

We are given the following in the question:

If the standard deviation of a set of data is zero.

Then, all the values in data are identical.

This can be shown as:

Let all the terms in data be x.

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{nx}{n} = x

Sum of squares of differences =

\displaystyle\sum (x_i - x)^2 = 0

\sigma = \sqrt{\frac{0}{n}} = 0

Thus, the correct answer is

All values are identical.

3 0
3 years ago
15-<br><br><br> pls help!!!!<br><br><br><br> math<br><br> pls help answer other questions<br> too
ddd [48]

Answer:

A

Step-by-step explanation:

The projection of vector B on unit vector a is

(B•a)a

av(unit vector of v)= 1/√2(-1,1)

u•av= 1/√2 × (-5+7)= √2

(u•av)av= √2 × 1/√2(-1,1)= (-1,1)

3 0
2 years ago
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