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hichkok12 [17]
4 years ago
9

A certain coin is a circle with diameter 18mm. What is the exact area of either face of the coin in terms of

Mathematics
1 answer:
attashe74 [19]4 years ago
6 0
Area=pir^2
d/2=r
given
d=18
d/2=18/2=9

area=pi9^2=81pi mm²
the exact value is 81π mm²
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Please answer if you can
almond37 [142]

Answer:

y = 15°

∠A = 78°

∠B = 68°

∠BAC = 34°

Step-by-step explanation:

∠BAC = 180° - 146° = 34°

the sum of the interior angles of any triangle is 180°

5y + 3 + 4y + 8 + 34° = 180°

combine like terms:

9y + 45° = 180°

subtract 45° from each side of the equation:

9y = 135°

divide both sides by 9:

y = 15°

∠A = 5(15) + 3 = 78°

∠B = 4(15) + 8 = 68°

3 0
3 years ago
Round 1803.2684 to the nearest thousandth
exis [7]

Answer:

1,803.268

Step-by-step explanation:

so thousandths place is three number after the decimal just see the fourth number after the decimal and if it 5 or greater round the (in this case) 8 but since the fourth number was 4 it stays the same but only three numbers

8 0
2 years ago
Read 2 more answers
How many ounces are are in 5.5lbs
Mnenie [13.5K]

Answer:

88

Step-by-step explanation:16 (1 lb = 16 oz)

1) Ounce = Pound * 16

2) Ounce = 5.5 * 16

3) Ounce = 88

5 0
4 years ago
Read 2 more answers
Which Inequality is equivalent to the given inequality?
sweet [91]

Answer:

-7x < 22

Step-by-step explanation:

Given

-4(x + 7)

Required

Determine its equivalent

-4(x + 7)

Start opening the brackets:

-4x - 28 < 3x - 6

Collect Like Terms

-4x - 3x < 28 - 6

Add and subtract like terms

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5 0
3 years ago
At a particular restaurant, each chicken wing has 75 calories and each slider has 250 calories. A combination meal with chicken
Lostsunrise [7]

Answer:

56

Step-by-step explanation:

7 0
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