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Volgvan
3 years ago
11

Find the exact circumference of a circle with diameter equal to 8 ft

Mathematics
2 answers:
lina2011 [118]3 years ago
6 0
The formula for circumference is C= 2(pi)(r)^2. Because diameter is double the radius, and the diameter is 8 ft, the radius is 4 ft. So, plug that into the equation, and you get: C=2(pi)(4)^2. The answer is 32 pi ft. If the question asks for the exact answer, keep the pi as it is, but if it says to round, multiply 32 by pi and round.
Nata [24]3 years ago
4 0

Answer:

Diameter = 8 ft

Circumference = πD

Circumference = 22/7 × 8 = 25.14 ft

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3 years ago
Andre notices that he is a little taller than Lin but is shorter than their math teacher, who is 164 centimeters tall. Write two
Ugo [173]

Answer:

Andre's height:  y < x < 164

Step-by-step explanation:

We will first of all convert each of the statements to mathematical inequalities, before we combine them.

Let Andre's height be = x

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x > y

Andre is shorter than their maths teacher, who is 164 centimetres

x<164

Combining the two inequalities, we have Andre's height as

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3 0
4 years ago
Please help me if you can! Thank you (:
AnnyKZ [126]

Answer:

The value of f(2) would be -40.

Step-by-step explanation:

Given function is,

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Substituting x = 2 in the above function,

We get,

f(2) = 2(2)^3 - 3(2)^2 - 18(2) - 8

=2(8) - 3(4) - 36 - 8

=16 - 12 - 44

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Hence, the value of f(2) would be -40.

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3 years ago
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