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KiRa [710]
3 years ago
13

the circumference of a circle is 11.4mm. find the length of the diameter. give your answer rounded to 3SF.

Mathematics
1 answer:
kvasek [131]3 years ago
4 0

Answer:

3.627 = d

Step-by-step explanation:

C = 11.4mm

d = ?

C = πd

11.4 = 22/7 × d

cross multiply

11.4 ×7 = 22d

79.8 = 22d

Divide both sides of the equation b 22

79.8/22 = 22d/22

3.627 = d

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Marianna [84]

Answer: \approx8*10^{-3}

Step-by-step explanation:

In order to round to the nearest thousandth, you must observe the digit to the right of the digit in the thousandth place and then:

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  • If it is greater than or equal than 5, you must round up.

In this case, given the number:

0.00792398

You can notice that the digit to the right of the digit in the thousandth place is 9.

Since 9>5, you must round up. Then:

0.00792398\approx0.008

Finally, to express this as a single-digit times a power of ten, move the decimal point three places to the right. Then you get:

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5 0
3 years ago
A price of a car is 15400 before it is reduce by 8% <br> how much does it cost after the reduction
Marysya12 [62]

Answer:

14,168

Step-by-step explanation:

15400

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15400-1232=14168

5 0
3 years ago
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The value of 25+144 is 13. O True O False​
Vladimir79 [104]
<h2>true</h2>

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5 0
4 years ago
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What is the measure of triangle X in degree
Anna11 [10]

Answer:

A.) 40°

Step-by-step explanation:

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Angle X and Y has the same angle, so both have 70°.

So:

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To find the degree of the last angle, subtract the known degree, which is 140°, from the overall degree, which is 180°.

So:

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