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Sophie [7]
4 years ago
6

What is the approximate circumference of a circle with a diameter of 9? Round answer to nearest tenth.​

Mathematics
1 answer:
Grace [21]4 years ago
5 0

Answer:

113.1

Step-by-step explanation:

Write down the equations on the top of your paper; it could help you throughout your homework.

The equation for circumference is 2 times pi, times the radius.

The Radius is the diameter times two.

2 times 9=18, so therefore the radius is 18.

Once you have that done, just put in your calculator 2 times pi times 18.

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What is the probabilty of getting an odd number when choosing between 0 and 10?
LenaWriter [7]
The answer is C I think
7 0
3 years ago
Statewide, there are 20 full-time employees to every 3 part-time employees. If there are 250,000 full-time employees, how many p
pickupchik [31]

Divide total full time employees by 20 to find how many groups of 20 there are, then multiply that number by 3 to find total part time employees:

250,000 / 20 = 12,500

12,500 x 3 = 37,500 part time employees.

8 0
4 years ago
58.15<br> If f(x) = 5x + 40, what is f(x) when x = -5?
Ket [755]

Answer:

15

Step-by-step explanation:

if you put x=-15

f(x) = 5*-5 +40

=-25+40

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7 0
3 years ago
Solve the following system of equations by substation.
Cerrena [4.2K]

Answer:

C. (-1, 3)

Step-by-step explanation:

Label the 2 equations:

5y= 7x +22 -----(1)

x= -6y +17 -----(2)

Substitute (2) into (1):

5y= 7(-6y +17) +22

5y= -42y +119 +22 <em>(</em><em>Expand</em><em> </em><em>bracket</em><em>)</em>

5y= -42y +141 <em>(</em><em>Simplify</em><em>)</em>

42y +5y= 141 <em>(</em><em>+</em><em>42y</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

47y= 141

y= 141 ÷47 <em>(</em><em>÷</em><em>4</em><em>7</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

y= 3

Substitute y= 3 into (2):

x= -6(3) +17

x= -18 +17

x= -1

Thus, the solution is (-1, 3).

7 0
3 years ago
I did bad but what's the answer for this?
Setler [38]

Answer:

28 degrees

Step-by-step explanation:

A triangle is always equal to 180 degrees so add the degrees together

40+2x+3x=180

40+5x=180

5x/5=140/5

x=28

8 0
3 years ago
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