3 years ago

Which statement is true about the circumference of a circle?

Mathematics

1 answer:

Sergio039 [100]3 years ago

7 0

Answer:

the first one the measurement around the circle

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56/15 as a decimal rounded to the nearest tenth

Debora [2.8K]

Answer:

3.7

Step-by-step explanation:

$\frac{56}{15}=3.733333333...$

$ROUND$

≈ $3.7$

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4 years ago

What is the best approximation for the circumference of a circle with a diameter of 300 ft?

geniusboy [140]

Hello!

$\bf Answer$

The best approximation for the circumference is $\boxed{ \bf 942~ft.}$

______________________________________________________

$\bf Explanation$

c = 2 $\pi$ r

r = 300 ÷ 2

r = 150

c = 2 × 3.14 × 150

c = 942

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3 years ago

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3 years ago

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3 years ago

If the maximum value of y=-3x² + mx + 10 is 37, find the values of m.

uysha [10]

Step-by-step explanation:

y = -3x² + mx + 10

dy/dx = -6x + m.

When dy/dx = 0, -6x + m = 0. => x = m/6.

We have y = -3(m/6)² + m(m/6) + 10 = 37.

=> -m²/12 + m²/6 = 27

=> -m² + 2m² = 324

=> m² = 324

=> m = 18 or m = -18.

5 0

3 years ago

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