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2 years ago

You walk around a circle which has a diameter of 9 m, how far have you walked?

Mathematics

2 answers:

Snezhnost [94]2 years ago

6 0

Answer:

C =28.26m

Step-by-step explanation:

We are walking around a circle, which means we are finding the perimeter. The perimeter of a circle is called the circumference.

We find the circumference by

C = pi *d where d is the diameter

C = 3.14 * 9

C =28.26m

LenKa [72]2 years ago

3 0

Answer:

28.26 m

Step-by-step explanation:

Radius = 9/2 = 4.5m

Circumference = 2 × pi × r

= 2 × 3.14 × 4.5

= 28.26

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What are the slope and the y-intercept of the linear function that is represented by the equation y=-10x+1?

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Answers:

Pair-1: $log_{2}x = 5$ ↔ 32
Pair-2: $log_{10}x = 3$ ↔ 1000
Pair-3: $log_{4}x = 2$ ↔ 16
Pair-4: $log_{5}x = 4$ ↔ 625

Explanation:

Pair-1:
$log_{2}x = 5 \\ \frac{ln(x)}{ln(2)} = 5 \\ ln(x) = 5 * ln(2) \\ x = e^{5*ln(2)} \\ x = 32$

Pair-2:
$log_{10}x = 3 \\ \frac{ln(x)}{ln(10)} = 3 \\ ln(x) = 3 * ln(10) \\ x = e^{3*ln(10)} \\ x = 1000$

Pair-3:
$log_{4}x = 2 \\ \frac{ln(x)}{ln(4)} = 2 \\ ln(x) = 2 * ln(4) \\ x = e^{2*ln(4)} \\ x = 16$

Pair-4:
$log_{5}x = 4 \\ \frac{ln(x)}{ln(5)} = 4 \\ ln(x) = 4 * ln(5) \\ x = e^{4*ln(5)} \\ x = 625$

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Archy [21]

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2 years ago