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zmey [24]
3 years ago
12

The radius of a circle is 9in. Find it’s circumference in terms of pi.

Mathematics
2 answers:
trasher [3.6K]3 years ago
6 0

Answer:

18in

Step-by-step explanation:

miskamm [114]3 years ago
6 0
I think it’s this because C≈56.55in
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Simplify the expression.<br> c^-6 d^4/c^-16 d^14
pochemuha

Answer:

\red{\frac{ {c}^{10}}{{d}^{10} } }

Step-by-step explanation:

\huge \: \frac{ {c}^{ - 6}  {d}^{4}}{ {c}^{ - 16}  {d}^{14} }  \\  \\  =  \huge \: \frac{ {c}^{16 - 6}}{{d}^{14 - 4} } \\  \\  =  \huge \:  \red{\frac{ {c}^{10}}{{d}^{10} } }

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2 years ago
The angles shown are supplementary. What is the value of x?
Nookie1986 [14]

Answer:

X= 17

Step-by-step explanation:

8 0
3 years ago
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Decide whether the data in the table represents a linear function or an exponential function. Explain how you know.
Alika [10]
This is a prime example of an exponential function due to the fact the r value is 1/3. It goes from 162 to 54 which is a 1/3 deduction from the original value.

CORRECT ANSWER: C
8 0
3 years ago
What must be the contact area between a suction cup (completely evacuated) and a ceiling if the cup is to support the weight of
Misha Larkins [42]
Contact area must be 0.00775 m2, which is the area of a circle with 10 cm in diameter. 
<span>Are you surprised that such a small cup is, in theory, enough to hold your weight? But it all comes from the equation of pressure: </span>
<span>P = F / S </span>
<span>P= Pressure, in Pascal, [P] </span>
<span>F = Force, in Newton [N] </span>
<span>S = Surface, in squared meters [S] </span>

<span>Pressure (atmospheric) is 101325 Pascal, and the required force (as per your question) is 80Kg = 785 N. Solving for S, you get 0.00775 m2. </span>

<span>You should have seen these suction cups used by glass workers, where a couple of cups are enough to lift a big piece of glass. This depends on how good the cups are and how smooth the surface of the ceiling or glass is. The idea is to have no pressure inside the cup. If you have some air inside the cup then atmospheric pressure might not be enough to hold 80Kg, as calculated.</span>
3 0
3 years ago
- What is the sum 6.43 + 0.89?​
Katarina [22]

Answer:

7.32

Step-by-step explanation:

6.43 + 0.89 = 7.32

Mark as brainliest please :)

8 0
3 years ago
Read 2 more answers
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