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alekssr [168]
3 years ago
12

9. WRITE > Math Compare how you would model and record finding the sum and difference of two rocks weighing s pound and pound

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Mathematics
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

I would model and record finding the sum and difference of two rocks by calculating the weight and pound and it will be equal to the mass of that rock.

Step-by-step explanation:

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Identify the equation of the circle that has its center at (7, -24) and passes through the origin.
krok68 [10]

The equation of this line would be (x - 7)^2 + (y + 24)^2 = 625

This is because of the base equation for circles, which is:

(x - x1)^2 + (y - y1)^2 = r^2

In which, x1 is the x-coordinate to the center, y1 is the y-coordinate to the center and r is the radius.

So we start by putting in out known values.

(x - 7)^2 + (y + 24)^2 = r^2

However, we still don't know the r value. To find it, we must use the Pythagorean Theorem to find the distance between the center and the origin.

a^2 + b^2 = c^2

7^2 + 24^2 = c^2

49 + 576 = c^2

625 = c^2

25 = c

So we know the radius must be 25. So we can plug that into what we already had.

(x - 7)^2 + (y + 24)^2 = 25^2

(x - 7)^2 + (y + 24)^2 = 625

3 0
4 years ago
Find the value of x so that the polygons have the same perimeter.
Novosadov [1.4K]

Answer: x=4

Step-by-step explanation:

The perimeter´s formula for this kind of polygons is

The triangle perimeter would be:

(x+2)+(x+3)+(x+3)

And the rectangle:

(x+2)+(x+2)+x+x

For them to have the same value, we should equal them:

(x+2)+(x+3)+(x+3)=(x+2)+(x+2)+x+x

Working with this:

3x+8=4x+4

x=4

4 0
3 years ago
Gabe planted 15 sunflower seeds, and 40% of them have sprouted. How many of the sunflower seeds have sprouted?
algol13

Answer:

hello

15 x 0.4 = 6

6 sunflower

Step-by-step explanation:

4 0
3 years ago
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Write r=-8sec(theta) in rectangular form
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r=-8\sec\theta=-\dfrac8{\cos\theta}\implies r\cos\theta=-8

Converting from rectangular coordinates to polar coordinates involves setting (x,y)=(r\cos\theta,r\sin\theta). Since the left hand side matches x perfectly, the equation's rectangular coordinate form is x=-8.
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4 years ago
Help me on this question please. Thx
lana [24]
The trapezoid was translated Right 6 ,down 5
3 0
3 years ago
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