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Simora [160]
3 years ago
13

the diameter of a cicrle is 72.4 millimeters . find the area of this circle in square millimeters. round your answer to the appr

opriate number of significant
Mathematics
1 answer:
Temka [501]3 years ago
4 0

Answer:

4,116.9mm² (rounded up to nearest one decimal point)

Step-by-step explanation:

Diameter of a circle is 72.4mm (where mm stands for millimeters)

Area of a circle is given by πr²

Radius (r) = 72.4mm ÷ 2 = 36.2mm

Area = π × (36.2mm)² = 4,116.868677mm²

That is  4,116.9mm² (rounded up to one decimal point)

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mars1129 [50]
10.562 + 3.4 = 13.962
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3 years ago
Find the discount rate when the original price is $103.00 and the amount of the discount is $30.90
Sati [7]
Its 30% because if you take 103 put it in the calculator and divide by 100 you get 1.03 and multiply that time 30 you get 30.9 thats how you find percent
6 0
3 years ago
Answer it guys pls idk how... you can also show the steps. For those who answer it all correctly I will give the brainliest answ
FromTheMoon [43]

Answer:

essentially, in these problems, youre finding the square root of each number. the square root should be a decimal thats in between two other numbers, and those will be the integers that the value of the square root is between. unless the value is exactly a number and a half, it will be closer to one integer than the other. the work is below.

square root of:

59= 7.68

68= 8.246

78= 8.83

93= 9.64

104= 10.198

124= 11.14

33= 5.74

185= 13.6

215= 14.66

these are just the square roots. but, as you can see, each number is between two other whole numbers on a number line. So, just write down what those numbers are.

7.68 is between 7 and 8

8.246 is between 8 and 9

8.83 is between 8 and 9

9.64 is between 9 and 10

10.198 is between 10 and 11

11.14 is between 11 and 12

5.74 is between 5 and 6

13.6 is between 13 and 14

14.66 is between 14 and 15

so, we know thw numbers that each decimal is between, but we have to find which one each is cloest to. in order to do that, just know that if the decimal is more than .5 its closer to the larger number, and its its less than .5, its closer to thw smaller number.

7.68 is closer to 8

8.246 is closer to 8

8.83 is closer to 9

9.64 is closer to 10

10.198 is closer to 10

11.14 is closer to 11

5.74 is closer to 6

13.6 is closer to 14

14.66 is closer to 15

7 0
2 years ago
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Illusion [34]

did this answer your question...no. OK well that is your loss

4 0
3 years ago
Suppose two random variables, X and Y are independent, which statement is false? a) P(X∣Y)=P(X) b) P(X∪Y)=P(X)+P(Y) c) P(X∩Y)=P(
Svetlanka [38]

B is false, since by the inclusion/exclusion principle,

P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)

By independence, we have P(X\cap Y)=P(X)P(Y), which is zero if either of P(X) or P(Y) is 0, which isn't guaranteed.

5 0
3 years ago
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