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andreev551 [17]
3 years ago
12

This is VERY URGENT, so 50 points if you answer correctly!

Mathematics
1 answer:
mariarad [96]3 years ago
3 0

Answer:

The circumference is 31.43 cm

The ratio of the circumference to the diameter is equal to 3:1

Step-by-step explanation:

Thed formular for the circumference of a circle is 2\pir or \pid

where d = diameter and r = radius

if d = 10 cm, and \pi = 3.143, then circumference of the circle can be given as

3.143*10 = 31.43 cm

The ratio of the circumference to the diameter can be given as 31.43:10

and that can be given as 3.143:1

or 3:1, for the nearest whole number

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twice the difference between a number and 10 is equal to 6 times the number plus 14. what is the number?
laiz [17]
Let the number be n.  Then 2(n-10) = 6n + 14.

Multiplying out the left side, 2n - 20 = 6n + 14.  Thus, -34=4n, and n = -17/2.
4 0
3 years ago
The value of a car declined 20% per year. what percent of the original value remains after 2 years
GalinKa [24]
60% is answer...20% is taken each year so After 2 yrs it's 40% less 100-40 is 60
5 0
3 years ago
What is the value of the expression x-3y when x = 6 and y = 12
elena55 [62]

Answer:

-30

Step-by-step explanation:

  1. Plug in the values of x and y: 6 - 3(12)
  2. 3(12) = 3 × 12 = 36
  3. Plug 36 in: 6 - 36
  4. 6 - 36 = -30

I hope this helps!

7 0
3 years ago
Select the correct answer.<br> Which function has the same graph as x + y = 11?
Zinaida [17]

The function that has the same graph as x + y = 11 is f(x) = -x + 11

<h3>Graph of functions</h3>

From the question, we are to determine the function that has the same graph as the given equation

The given equation is

x + y = 11

In the above equation, y is the dependent variable.

and

Among the given equation, f(x) is the dependent variable

Thus, we can write that

x + f(x) = 11

Isolate f(x)

f(x) = -x + 11

Hence, the function that has the same graph as x + y = 11 is f(x) = -x + 11

Learn more on Graph of functions here: brainly.com/question/20388062

#SPJ1

8 0
2 years ago
Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 55 cubic feet
valina [46]
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4 0
3 years ago
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