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torisob [31]
3 years ago
7

What is the area of a circle with the diameter of 90?

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

6,358.5‬

Step-by-step explanation:

A=πr²

A=3.14 × 45²

A=3.14 × 2,025‬

A= 6,358.5

Sorry if its wrong

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Step-by-step explanation:

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Hii! I need some help, would anyone mind helping me?
Kisachek [45]

Step-by-step explanation:

{x}^{2}  - 14x  - 25 {y}^{2}  + 100y = 76

Factor by grouping,

( {x}^{2}  - 14x)   - (25 {y}^{2}  - 100y) = 76

Complete the square, with the x variables,

( {x}^{2}  - 14x + 49)  - (25 {y}^{2}  - 100y) = 125

Factor out 25 for the y variables

( {x}^{2}  - 14x + 49) - 25( {y}^{2}  - 4y) = 125

Complete the square

( {x}^{2}  - 14x + 49) - 25( {y}^{2}  - 4y + 4) = 25

Simplify the perfect square trinomial

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8 0
2 years ago
From $2003$ onward, the number of daily visitors to a website increased by $200\%$ every two years. So, for example, the number
andrew-mc [135]

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5 0
3 years ago
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tresset_1 [31]

Answer:

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Step-by-step explanation:

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Answer:

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and there is the answer. If you need to prove that y = 9, just input it into the equation.

14 * 9 = 126

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4 0
4 years ago
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