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Mkey [24]
3 years ago
5

What are the coordinates of each point after quadrilateral ABCD is rotated 270° about the origin? Select numbers from the pull-d

own menus to complete the coordinates. Numbers may be used once, more than once, or not at all.
Mathematics
1 answer:
Mashcka [7]3 years ago
5 0

Answer:

140

Step-by-step explanation:

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My Math Integers. I'm stuck on this problem.. Someone please help? (-4)(-9) =
tatuchka [14]

Answer:

It is 36

Step-by-step explanation:

minus × minus equals + so its 36

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Is my dog cute…ANSWER NOW! Thanks :))))
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omggg he looks like a stuffed animal

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2 years ago
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URGENT, PLZ HELP ASAP! TYSM! Plz help solve without using algebra plz, my teacher wouldn’t allow us to use it.
d1i1m1o1n [39]
First, divide 4960 by 3 and assign the answer to all three containers. Then, subtract 4 from L and add 4 to J.

4960/3=1653.3
J=1657.3
K=1653.3
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3 0
3 years ago
Find an equation of the line containing the centers of the two circles whose equations are given below.
Anna35 [415]

Answer:

<h2><em>3y+x = -5</em></h2>

Step-by-step explanation:

The general equation of a circle is expressed as x²+y²+2gx+2fy+c = 0 with centre at C (-g, -f).

Given the equation of the circles x²+y²−2x+4y+1  =0  and x²+y²+4x+2y+4  =0, to  get the centre of both circles,<em> we will compare both equations with the general form of the equation above as shown;</em>

For the circle with equation x²+y²−2x+4y+1  =0:

2gx = -2x

2g = -2

Divide both sides by 2:

2g/2 = -2/2

g = -1

Also, 2fy = 4y

2f = 4

f = 2

The centre of the circle is (-(-1), -2) = (1, -2)

For the circle with equation x²+y²+4x+2y+4  =0:

2gx = 4x

2g = 4

Divide both sides by 2:

2g/2 = 4/2

g = 2

Also, 2fy = 2y

2f = 2

f = 1

The centre of the circle is (-2, -1)

Next is to find the equation of a line containing the two centres (1, -2) and (-2.-1).

The standard equation of a line is expressed as y = mx+c where;

m is the slope

c is the intercept

Slope m = Δy/Δx = y₂-y₁/x₂-x₁

from both centres, x₁= 1, y₁= -2, x₂ = -2 and y₂ = -1

m = -1-(-2)/-2-1

m = -1+2/-3

m = -1/3

The slope of the line is -1/3

To get the intercept c, we will substitute any of the points and the slope into the equation of the line above.

Substituting the point (-2, -1) and slope of -1/3 into the equation y = mx+c

-1 = -1/3(-2)+c

-1 = 2/3+c

c = -1-2/3

c = -5/3

Finally, we will substitute m = -1/3 and c = 05/3 into the equation y = mx+c.

y = -1/3 x + (-5/3)

y = -x/3-5/3

Multiply through by 3

3y = -x-5

3y+x = -5

<em>Hence the equation of the line containing the centers of the two circles is 3y+x = -5</em>

5 0
3 years ago
42 deliveries in 3 hours = deliveries per hour
DochEvi [55]

Answer:

14 deliveries per hour

Step-by-step explanation:

42/3

14

The person makes 14 deliveries per hour

8 0
3 years ago
Read 2 more answers
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