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1 year ago

The diameter of a circle is 41 ft. Find its area to the nearest whole number.

Mathematics

2 answers:

Dafna1 [17]1 year ago

8 0

Answer:A≈1320.25ft²

Step-by-step explanation:

A=1

4πd2=1

4·π·412≈1320.25431ft²

erastova [34]1 year ago

8 0

Answer:

rounded: 1320

original: 1320.25

Step-by-step explanation:

hope this helps

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A box is supposed to have 150 folders in it. Clare counts only 147 folders in

VikaD [51]

Answer:

it's a 0.02% error.

147/150= 0.98% of the folders are there, making the error 0.02%

Step-by-step explanation:

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2 years ago

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andreyandreev [35.5K]

Answer:

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2 years ago

Solve the following system by any method -8x-8y=0 -8x+2y=-20

iVinArrow [24]

$\fbox{Solution by using Matrix}$

$\text{Linear Equation} = -8x-8y=0 , -8x+2y=-20$

$\text{Rewrite the linear equations above as a matrix}$

$\left[\begin{array}{ccc}8&-8&0\\-8&2&-20\\\end{array}\right]$

$\text{Apply to Row2 : Row2 + Row1}$

$\left[\begin{array}{ccc}8&-8&0\\-8&-6&-20\\\end{array}\right]$

$\text{ Simplify rows}$

$\left[\begin{array}{ccc}8&-8&0\\0&1&10/3\\\end{array}\right]$

$\text{Note: The matrix is now in echelon form.}$ $\text{The steps below are for back substitution.}$

$\text{Apply to Row1 : Row1 + 8 Row2}$

$\left[\begin{array}{ccc}8&0&80/30\\0&1&10/3\\\end{array}\right]$

$\text{ Simplify rows}$

$\left[\begin{array}{ccc}1&0&10/3\\0&1&10/3\\\end{array}\right]$

$\text{Therefore, the solution is}$

$x= \dfrac{10}{3} \ \text{and} \ \ y=\dfrac{10}{3}$

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2 years ago

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Step-by-step explanation:

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2 years ago

Read 2 more answers

What’s the answer to six plus negative 3

Alik [6]

6 + (-3) would be the same as just saying 6-3 which would be equal to positive 3

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3 years ago