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SashulF [63]
2 years ago
13

HELP HELP I NEED HELP​

Mathematics
2 answers:
Papessa [141]2 years ago
8 0

Answer:

<u>a. 1385.44 ft²</u>

Step-by-step explanation:

<u>Area of a circle</u>

  • πr²

<u>Given</u>

  • r = 21 ft

<u>Solving</u>

  • 22/7 x 21 x 21
  • 22 x 3 x 21
  • 66 x 21
  • 1386 ft²
  • Option A is the closest answer
zheka24 [161]2 years ago
7 0

\color{red}{ \tt{Given : }}

\textbf{ radius = 21 ft }

\color{red}{ \tt{Solution : }}

\textbf{Area of circle = πr²}

\bold{ =   \frac{22}{\cancel{7}}  × \cancel{21} × 21 }

\textbf{= 22 × 3 × 21 }

\textbf{= 1386 ft²}

{\boxed{{area \:  =  1386 ft²}}}

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Hatshy [7]

Answer:

19,350.4 or 19,350 if they want it rounded

Step-by-step explanation:

To find the mean you must add up all the numbers. Then, divode that sum by the amount of numbers you added up.

Explanation:

16,746 + 18,423 + 20,536 + 19,572 + 21,475 = 96,752

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4 0
3 years ago
10 + 6x + 2x - 7 = 35<br> Help me pls and ty
lutik1710 [3]

Answer:

<h2><em><u>x = 4</u></em></h2>

Explanation:

10 + 6x + 2x - 7 = 35

  • Add Similar Elements: 6x + 2x = 8x

10 + 8x - 7 = 35

  • Group Like Terms

8x + 10 - 7 = 35

  • Subtract: 10 - 7 = 3

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  • Subtract 3 From Both Sides

8x + 3 - 3 = 35 - 3

  • Simplify

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6 0
3 years ago
Read 2 more answers
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Mariulka [41]

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or

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Work:

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Divide 8/3x by 5/3x, looks like 8 over 3 times 3 over 5. 3s cancel each other out, leaving 8/5x. Equation: 8/5x = 1

If needed to be simplified, 8/5 = 1.6.

6 0
3 years ago
7w−(2+w)=2(3w−1)
Llana [10]
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simplify 7w - 2 - w to 6w - 2

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3 years ago
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Answer:

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Step-by-step explanation:

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