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3 years ago

Find the circumference of each circle. Use 3.14 for the value of π . Round answer to the nearest tenth.

Mathematics

2 answers:

kvv77 [185]3 years ago

8 0

Answer:

$C=9.4\pi$ meters

Step-by-step explanation:

Recall to find the circumference of a circle the formula is $C=\pi d$ or $C=2\pi r$ .

We start by substituting 4.7m for r in the second circumference formula.

$C=2\pi r\\C=2\pi (4.7)\\C=9.4\pi$ . We input this value of r into the area formula.

makvit [3.9K]3 years ago

4 0

Answer:

its C.

Step-by-step explanation:

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valina [46]

Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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3 years ago

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natima [27]

Answer:

125

Step-by-step explanation:

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3 years ago

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Lucy spends 4 hours a week babysitting. Her sister Lily spends seven eighths as much time babysitting. Does Lily babysit for mor

olganol [36]

Answer:

Lily babysit for less than 4 hours.

Step-by-step explanation:

Given:

Lucy spends in a week babysitting for 4 hours.

Lily spends seven-eighths of 4 hours.

Now, to find whether Lily babysit for more than 4 hours or less than that.

Number of hours Lucy babysit = 4 hours.

So, to get the hours Lily babysit:

$\frac{7}{8}\ of\ 4\ hours.$

$=\frac{7}{8}\times 4\\\\=\frac{28}{8} \\\\$

On simplifying we get:

$=\frac{7}{2} \\\\=3\frac{1}{2}\ hours.$

Thus, Lily spends $3\frac{1}{2}\ hours$ for babysitting which is less than 4 hours.

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3 years ago

A marketing company surveys 100 males and 100 females between the ages of 55 and 70 to determine how many times they text each d

KiRa [710]

Answer:

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Step-by-step explanation:

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3 years ago