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Readme [11.4K]
3 years ago
6

What is the area of the circle? d = 8 m 6471 m2 50.24 m2 100.48 m2

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

Answer: 50.24 m2

Step-by-step explanation:

the fomlua for the area of a cuculal is

A=1/4 π d^2

so...

1/4 * π * 8^2

=50.24

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The length of a rectangle is 5 ft less than three times the width, and the area of the rectangle is 50 ft². Find the dimensions
Mariulka [41]

Answer

Length = 10 ft

Width = 5 ft

Explanation

Area of the rectangle given = 50 ft²

Let the width of the rectangle be x

So this means the length of the rectangle will be 3x - 5

What to find:

The dimensions of the rectangle.

Step-by-step solution:

Area of a rectangle = length x width

i.e A = L x W

Put A = 50, L = 3x - 5, W = x into the formula.

\begin{gathered} 50=(3x-5)x \\ 50=3x^2-5x \\ 3x^2-5x-50=0 \end{gathered}

The quadratic equation can now be solve using factorization method:

\begin{gathered} 3x^2-5x-50=0 \\ 3x^2-15x+10x-50=0 \\ 3x(x-5)+10(x-5)=0 \\ (3x+10)(x-5)=0 \\ 3x+10=0\text{ }or\text{ }x-5=0 \\ 3x=-10\text{ }or\text{ }x=5 \\ x=-\frac{10}{3}\text{ }or\text{ }x=5 \end{gathered}

Since the dimension can not be negative, hence the value of x will be = 5.

Therefore, the dimensions of the rectangle will be:

\begin{gathered} Length=3x-5=3(5)-5=15-5=10\text{ }ft \\  \\ Width=x=5\text{ }ft \end{gathered}

7 0
1 year ago
Substitute y=-6x-3 y=-x+2
MrRissso [65]
-6x-3= -x+2
-5x=5
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4 0
3 years ago
Need help finding angles 1,2,3,4,5!!!!!
earnstyle [38]

Answer:

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Answer:

Equation shown

Step-by-step explanation:

Eq(1): x-3y=-12

X=-12+3y

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3 years ago
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36. The price of a new home. According to the U.S. Census
zmey [24]

Answer:

210

Step-by-step explanation:

because you use 13.% divided by the price

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