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2 years ago

A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3.14 for π?

Mathematics

2 answers:

Alborosie2 years ago

4 0

Answer: answer D is correct

Step-by-step explanation:

Mkey [24]2 years ago

3 0

That would be 1953.08
diameter = <span>circumference/pi, so reverse it and multiply 622 by 3.14</span>

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Which fraction is equivalent to the decimal 0.15?With the line over.

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Answer:

Step-by-step explanation:

divide 100 and dive 15 by 5

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2 years ago

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Farmer Smith enclosed his rectangular pasture with fence that cost him $1.50 per linear meter. If his pasture is twice as long a

maria [59]

Answer:

$2,700

Step-by-step explanation:

Let the width of the pasture be x, this means that the length of the pasture will be 2x

The area of a rectangle is L * B

Hence,

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2x^2 = 180,000

x^2 = 90000

x = 300 meters

This means the length is 600 metres

Now, to get the length of the fence, we need to know the actual perimeter which is 2(L + B)

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The answer to the question

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Catherine walks her dog 3/4 mile everyday how far does she walk each week

fenix001 [56]

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3 years ago

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A scientist is growing bacteria in a lab for study. One particular type of bacteria grows at a rate of y=2t^2+3t+500. A differen

Leya [2.2K]

ANSWER

Approximately after 15 minutes.

EXPLANATION

The growth rate of the first bacteria is

$y = 2 {t}^{2} + 3t + 500$

The growth rate of the first bacteria :

$y = 3 {t}^{2} + t + 300$

To find the time that, there will be an equal number of bacteria, we equate the two equation;

$3 {t}^{2} + t + 300 = 2 {t}^{2} + 3t + 500$

$3 {t}^{2} - 2 {t}^{2} + t - 3t + 300 - 500 =00$

${t}^{2} - 2t - 200= 0$

We solve for t to get,

$t = 15.177$

$t = - 13.177$

We discard the negative value.

This implies that,

$t \approx15$

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3 years ago