The radius of a circle is 3 ft. Find its area to the nearest tenth.

9.428 is the answer

Step-by-step explanation:

9.428 is answer

the area = 28.3

Step-by-step explanation:

A=

\,\,\pi \cdot \color{red}{3}^{2}

π⋅3

2

\color{purple}{A}=

A=

\,\,\pi \cdot 9

π⋅9

Square 3

\color{purple}{A}=

A=

\,\,9\pi

9π

Commutative property of multiplication

\color{purple}{A}=

A=

\,\,28.27433388...

28.27433388...

Multiply, using the π button on your calculator

\color{purple}{A}=

A=

\,\,28.3

28.3

Round to the nearest tenth

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

1 and 0

step-by-step explanation: