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alekssr [168]
3 years ago
13

Find the area of the circle. 9mm.​

Mathematics
1 answer:
Naya [18.7K]3 years ago
5 0

Step-by-step explanation:

The answer is 254.57142857

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Simplify 13x + 7y - 2x + 6a
VLD [36.1K]

Step-by-step explanation:

13x+7y-2x+6a

combine like terms

=13x-2x+7y+6a

=11x+7y+6a

simplified

8 0
3 years ago
Read 2 more answers
7 t-shirts and a hat costs £67.00
frozen [14]
£67.00 / 7= £9.57that’s how much cost the hat
£67.00-£9.57= £57.43
£57.43/7= £8.20 per T-shirt





7 0
3 years ago
Can anyone enlighten me///... 3/4 - 2/5x = 1/x + 7/10
Lyrx [107]
More pizza and eat here is a restaurant in the bathroom and
6 0
2 years ago
Which is the value of this expression when a=5 and k=-2? ?
Valentin [98]

Hey there! I'm happy to help!

a^-^2 is the same thing as 1/a². So, 5^-^2 is 1/25. This is multiplied by 3² which is 9, so this is 9/25.

In the denominator, we have 5^-^1, which is 1/5. We multiply this by 3, which is 3/5.

So, we divide 9/25 by 3/5, giving us 3/5.

Now, we raise this to the power of -2, so we flip the numerator and denominator and then square both numbers, giving us 25/9.

Have a wonderful day! :D

4 0
2 years ago
Which of the following sjows the correct key features of the graph?
sammy [17]

Answer:

Step-by-step explanation:

y = x^2 - x - 2 is a quadratic function.  It's easily factorable:  y = (x + 1)(x - 2).  Setting this result equal to zero yields the x-intercepts:  -1 and 2.  This matches the x-intercepts shown on the graph.

The axis of symmetry,  x = -b/(2a), derived from the coefficients 1, -1 and -2 of this particular function, is x = 1/2.  This x = 1/2 is also the x-coordinate of the vertex.  To find the y-coordinate of the vertex, we evaluate y = x^2 - x - 2 at x = 1/2, obtaining:

y = (1/2)^2 - (1/2) - 2, or y = 1/4 - 1/2 - 2, or -2 1/4.  This does not quite agree with the y value (-2) shown in the diagram, but is close.

4 0
3 years ago
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