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BigorU [14]
3 years ago
5

To the nearest tent what the area of a circle whose diameter is 9 feet? Use 3.14 for x Please help :’(((( will give 25pts

Mathematics
2 answers:
makkiz [27]3 years ago
8 0

Answer:

area of circle =πr²

Step-by-step explanation:

3.14×4.5×4.5

63.585 in ft

Fynjy0 [20]3 years ago
6 0

Step-by-step explanation:

Diameter of circle = 9 ft

Therefore, radius = 9/2 = 4.5 ft

area \: of \: circle  \\ = \pi {r}^{2}  \\  = 3.14 \times  {4.5}^{2}  \\  = 3.14 \times 20.25 \\  = 63.585 \\  = 63.6 {ft}^{2}  \\

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Answer:

x = 0 or x = -2

Step-by-step explanation:

x^4+8x=0

Step 1: Factor left side of equation.

x(x+2)(x2−2x+4)=0

Step 2: Set factors equal to 0.

x=0 or x+2=0 or x2−2x+4=0

x=0 or x=−2

7 0
3 years ago
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Tell whether the equation has one, zero, or infinitely many solutions.<br>2(x-1/2)=8+2x​
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Step-by-step explanation:

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2 years ago
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A card is drawn from a standard deck of 52 playing cards. If the card is a club, a fair coin is flipped 9 times and the number o
olasank [31]

Answer: There are 18 elements in the sample space for this experiment

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Total cards = 52

Total outcomes on tossing a coin = 2   [1 head , 1 tail]

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If it is not a club, the coin is only flipped 3 times, but this time the result of each flip is noted(but card drawn is not noted).

Sample space with all possible outcomes ={TTT,TTH, THT, HTT, HTH,HHT,THH,HHH}   <em> (Total </em><em>18 elements</em><em> )  </em><em>(ii)</em>

<em />

From (i) and (ii), Total elements in the sample space for this experiment = 10+8 = 18

Hence, there are 18 elements in the sample space for this experiment

4 0
3 years ago
On a bicycle, Caitlyn rides for 4 hours and is 46 miles from her house. After riding for 7 hours, she is 79 miles away. What is
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Hope this helps!

Pls mark brainliest! ;)

8 0
3 years ago
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2 years ago
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