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1 year ago

The lawn is a circle with radius 3m. Work out the area of the lawn.

Mathematics

1 answer:

Umnica [9.8K]1 year ago

5 0

Answer:

28.27m

Step-by-step explanation:

the formula for area of a circle is

A= π x r^2

A = π x r^2 = π x 3^2 = 28.27433

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T/2 + 3 = 5 (solve for t)

Mashutka [201]

Answer:

t = 4

Step-by-step explanation:

Given

$\frac{t}{2}$ + 3 = 5 ( subtract 3 from both sides )

$\frac{t}{2}$ = 2

Multiply both sides by 2 to clear the fraction

t = 2 × 2 = 4

7 0

3 years ago

. If 1: x is equivalent to 64 : 25, find x

alexandr1967 [171]

Answer:

x=25/64

Step-by-step explanation:

by simple substitution

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3 years ago

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9966 [12]

Answer:

Step-by-step explanation:

I think the answer is C, I am not 100% sure tho

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3 years ago

Wanda found a cone-shaped Seashell on the beach. The shell has a height of 63 millimeters and a base radius of 8 millimeters. Wh

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Answer:

Step-by-step explanation:

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2 years ago

Solve the following equation. X cubed minus 6X squared plus 6X equals zero

anyanavicka [17]

We have to solve this equation:

$x^3-6x^2+6x=0$

Third degree polynomials like this one are not easily solved, but this one has a root at x = 0. The let us factorize this polynomial as x times a second degree polynomial:

$\begin{gathered} x^3-6x^2+6x=0 \\ x(x^2-6x+6)=0 \end{gathered}$

Now we can find the roots of the quadratic polynomial as:

$\begin{gathered} x=\frac{-(-6)\pm\sqrt[]{(-6)^2-4\cdot1\cdot6}}{2\cdot1} \\ x=\frac{6\pm\sqrt[]{36-24}}{2} \\ x=\frac{6\pm\sqrt[]{12}}{2} \\ x=\frac{6\pm\sqrt[]{4\cdot3}}{2} \\ x=\frac{6\pm2\sqrt[]{3}}{2} \\ x=3\pm\sqrt[]{3} \\ x_1=3-\sqrt[]{3} \\ x_2=3+\sqrt[]{3} \end{gathered}$

Then, the solutions to the equation are:

x = 0

x = 3 - √3

x = 3 + √3

4 0

1 year ago