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viva [34]
3 years ago
5

If π is rounded to a whole number, what is a reasonable estimate for the circumference of a circle with a diameter of 9 cm? 27 c

m 28 cm 30 cm 36 cm
Mathematics
2 answers:
a_sh-v [17]3 years ago
4 0
The estimate would be about 28 cm
Alexxx [7]3 years ago
3 0
Circumference of circle= 2*pi*r

You need to figure out the radius from the diameter. The radius is half of the diameter. Therefore, the radius in this problem is 4.5.

Since you are rounding pi to a whole number, 3.14 would be converted to 3. 

This is now the equation: 2*3*4.5

27 cm
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Determine whether or not the following graph represents two quantities that are proportional to each other. Explain your reasoni
castortr0y [4]

Answer:

The quantities are not proportional.

Step-by-step explanation:

The values, x and y, do not begin or pass through the origin, (0,0). This means they are not proportional.

5 0
2 years ago
What is the length of a diagonal of a rectangle with a length of 8 meters and a width of 6 meters
RSB [31]

Answer:

10 m

Step-by-step explanation:

If we draw the diagonal of the rectangle, we form a right triangle where the diagonal is the hypotenuse and the legs are 6 and 8.

This is a well-known Pythagorean triple, which gives the diagonal to be 10 m.

7 0
1 year ago
Please help me !!!!!!!!!!!!!
Ostrovityanka [42]
Umm i would not trust that file
5 0
3 years ago
-10(x + 21) = -15x + 18<br> What value of x makes the equation true?
schepotkina [342]
Answer:

x = 45.6

Explanation:

-10(x + 21) = -15x + 18

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-228 = -5x

x = 45.6

(I’m not sure if this is what you’re looking for, but I hope it helped a bit)
7 0
3 years ago
What is the Y-Intercept and Slope of Y=10+1.75x?
Drupady [299]

Answer:

The slope is 1.75 and the y intercept is 10

Step-by-step explanation:

y = 10 +1.75x

y = 1.75x+10

This is in the form y = mx+b  where m is the slope and b is the y intercept

The slope is 1.75 and the y intercept is 10

7 0
2 years ago
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