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never [62]
3 years ago
7

Which equation represents the line that passes through (2, -1) and is

Mathematics
1 answer:
wolverine [178]3 years ago
4 0

Answer:

y=(1/2)x-2

Step-by-step explanation:

Remember y=mx+b equation.

If is perpendicular to y=-2x+1 that has the slope -2, then the slope is negative reciprocal so is 1/2

Use the (x-x1)m= (y-y1) equation and the given point (2, -1),

so (x-2)1/2=(y+1); x-2=2y+2; 2y=x-2-2; 2y=x-4; y=(1/2)x-2

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Aleonysh [2.5K]

Answer:

a) 25 + 3x =45

b) 3x = 45-25

   3x = 20

    x = 20/3

    x = 6.33

Anton can buy 6 bottles of water

Step-by-step explanation:

4 0
3 years ago
Susan enlarged a rectangle with a height of 6 cm and length of 13 cm on her computer. The length of the new rectangle is 19.5 cm
amid [387]
On enlarging the rectangle, the proportion or ratio of Length to Height will stay the same.

The ratio of original length to height is 13 : 6 
The ratio in enlarged rectangle will stay the same. Let the height of enlarged rectangle is y cm. So we can write:

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5 0
3 years ago
Isn’t the answer just D ?
wolverine [178]

Answer:

yes you are right

4 0
3 years ago
Read 2 more answers
Find the area of a circle with a circumference of 2 pie
shusha [124]
We know that formula for circumference is 2πr

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So radius is 1.

Now the formula for area of circle is πr². So plug in r=1 and that would be 

π(1)²

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So area of circle is π.

Hope this helps.

6 0
4 years ago
Read 2 more answers
I need help I'm not good at this very much
xeze [42]

Answer:

1- corresponding? 2- alternate interior 3- linear pair 4- alternate exterior 5- vertical 6- alterative exterior?

Step-by-step explanation:

I hope this help sweetie:(

4 0
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