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3 years ago

14

The side of an equilateral triangle whose perimeter is 72 cm is ____

2 answers:

malfutka [58]3 years ago

7 0

Answer:

24cm

Step-by-step explanation:

So a triangle has 3 sides and it is an equilateral triangle so each side should have the same length. The perimeter is 72 cm and that means we have to divide 72 by 3 and that equals 24cm.

Flauer [41]3 years ago

4 0

The answer is 24cm. Because a triangle has 3 sides, and the triangle is equilateral, which means all the sides of the triangle are equal. So since all 3 sides add up to 72cm, we can do 72/3 which is 24. Each side of the triangle is 24cm

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myrzilka [38]

Answer:

25.46

Step-by-step explanation:

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3 years ago

Work out the circumference of this circle.

worty [1.4K]

<h3>given:</h3>

diameter= 13 cm

<h3>to find:</h3>

the circumference of the given circle.

<h3>solution:</h3>

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$c = 3.142 \times 13$

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3 years ago

Tabitha decided to start saving pennies for a stretch of two months and initially started with 2 pennies. A table showing the nu

svetoff [14.1K]

Answer:

after week 7: 4374 pennies
486 pennies: after week 5

Step-by-step explanation:

The sequence values have a first term of 6 and a common ratio of 3, so can be described by the formula ...

an = 6·3^(n-1)

This can be rearranged to ...

an = 2·3^n

__

When n=7, the value is ...

a7 = 2·3^7 = 4374 . . . . pennies saved after 7 weeks

__

To find when there are 486 pennies saved, we can solve the equation ...

486 = 2·3^n

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log(243) = n·log(3) . . . . . . . take the logarithm

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7 0

3 years ago

Express this ratio in simplest form: 4:20

AVprozaik [17]

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Step-by-step explanation:

i think you can just divide by 4

5 0

3 years ago

If = 3.52895, then the time is about 3 years and how many days?

ivann1987 [24]

Answer:

193

Step-by-step explanation:

We need to convert the decimal part of that number from years to days. Do that like this:

.52895 × $\frac{365days}{1year}$ .

The year label cancels and we are left to multiply .52895 by 365 to get 193.06675 days.

5 0

3 years ago