1.25 km = 1,250 m
1.7 cm = 17 mm
345 m = 0.345 km
Answer:
The answer is "
"
Step-by-step explanation:
In this question, the image file is missing, which is defined in the attached file. please find it.
![\to raise= y_2-y_1](https://tex.z-dn.net/?f=%5Cto%20raise%3D%20y_2-y_1)
![=-1-(-10)\\\\=-1+10\\\\=9](https://tex.z-dn.net/?f=%3D-1-%28-10%29%5C%5C%5C%5C%3D-1%2B10%5C%5C%5C%5C%3D9)
![\to run= x_2-x_1](https://tex.z-dn.net/?f=%5Cto%20run%3D%20x_2-x_1)
![=9-(-4)\\\\=9+4\\\\=13](https://tex.z-dn.net/?f=%3D9-%28-4%29%5C%5C%5C%5C%3D9%2B4%5C%5C%5C%5C%3D13)
![\to \text{formula for slope} =\frac{rise}{run} =\frac{9}{13}](https://tex.z-dn.net/?f=%5Cto%20%5Ctext%7Bformula%20for%20slope%7D%20%3D%5Cfrac%7Brise%7D%7Brun%7D%20%3D%5Cfrac%7B9%7D%7B13%7D)
Answer:
1) expression
2) 1
3) I don't see an 'r', so not sure about the coefficient. if there isn't a 'r' on purpose, then the coefficient is 0
4) 7
5) yes, 2x and -3x and 2xy, -5yx
Answer:
18.6
Step-by-step explanation:
To find the mean of a data set, first, you have to arrange the numbers from least to greatest. Since the data set is already in that order, this saves us the first step. Next, what we would do is add up the numbers...
13+16+17+19+22+25=...
112.
Next, we would have to divide that number by 6 because there are 6 numbers. 112 ÷ 6 = 18.666666666666666666666666666667
Rounded to the nearest tenth, it would be 18.6
Therefore, the mean of this data set is 18.6.
-<em>kiniwih426</em>
The number of feet in the length of the handrail is 17.3 ft.
The easiest way to see this is to imagine that we can "unfold" the spiral to create a rectangle
The bottom side of the rectangle is just the arc length of a circle with a radius of 3 ft turned through 270°= (3/4) of a whole revolution
(3/4) (2pi) (3) = (9/2)pi ft = 4.5 pi ft
The side of the rectangle will be the rise of the staircase = 10ft
And the diagonal of the rectangle will be the length of the handrail
We can use the Pythagorean Theorem to solve this
Handrail length = √ [ (4.5 pi)^2 + 10^2 ] ≈ 17.3 ft
Pythagorean theorem is the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse.
Learn more about the Pythagorean theorem here: brainly.com/question/343682
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