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Kruka [31]
2 years ago
5

The line x+2y=9 intersects the curve xy+18=0 at the points A and B. Find the coordinates of A and B

Mathematics
1 answer:
sleet_krkn [62]2 years ago
3 0
Using a graphing calculator they are (-3,6) and (12,-1.5)
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Mirela has a rectangular piece of paper with an area of 0.35 m2. She cuts the paper into small rectangles with areas of 700 cm2.
lakkis [162]

Answer:

5.

Step-by-step explanation:

0.35 m^2 = 0.35 * 100 * 100 =  3500 cm^2  ( as there is 100 cm in a meter).

So the maximum number of small rectangles she can cut

=  3500 / 700

= 5.

6 0
1 year ago
Aubrey and her cousins plan to all chip in to get their grandmother a $530
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8 0
1 year ago
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If line b is perpendicular to line a, and line c is perpendicular to line a, what is the slope of line c?
slega [8]

we know that

If line b is perpendicular to line a, and line c is perpendicular to line a,

then

line b and line c are parallel

and two lines parallel have the same slope

so

<u>Find the slope of the line b</u>

Let

A(-3,-2)\\B(2,3)

The formula to calculate the slope between two points is equal to

m=\frac{(y2-y1)}{(x2-x1)}

(x1,y1)=(-3,-2)\\(x2,y2)=(2,3)

substitute

m=\frac{(3+2)}{(2+3)}

m=\frac{(5)}{(5)}

m=1

therefore

<u>the answer is</u>

<u>the slope of the line c is</u>

mc=1

8 0
2 years ago
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Of the 100 students enrolled at the dance studio, 50 take ballet and 24 take tap dancing. Eight of the students who take ballet
Soloha48 [4]

Answer:

42 over 100

Step-by-step explanation:

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1 year ago
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Rob says that this graph shows a proportional<br> relationship. Is he correct? Explain.
zysi [14]

Answer:

No. Rob was correct to extend the lines to the origin, but the points should be on a single straight line. He made two straight lines.

Step-by-step explanation:

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