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2 years ago

Which of the following is the domain of the function y = √x + 4 - 3

Mathematics

1 answer:

sweet [91]2 years ago

4 0

$y=\sqrt{x+4}-3\\\\Domain:\\\\x+4\geq0\ \ \ \ |-4\\x\geq-4\to x\in[-4,\ \infty)$

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Solve this system of equations.

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2 years ago

Read 2 more answers

Saira is using the formula for the area of a circle to determine the value of LaTeX: \piπ. She is using the expression LaTeX: Ar

lord [1]

Given:

Area of a circle, A=50.265 sq. units.

Radius of circle, r = 4 units.

To find:

The value of π to the nearest thousandth.

Solution:

Formula for area of a circle is

$A=\pi r^2$

$\dfrac{A}{r^2}=\pi$

$Ar^{-2}=\pi$

Now, using $Ar^{-2}$ expression, we can find the value of π.

$\pi=50.265904(4)^{-2}$

$\pi=\dfrac{50.265904}{4^2}$

$\pi=\dfrac{50.265904}{16}$

$\pi=3.141619$

Approximate the value to the nearest thousandth (three digits after decimal).

$\pi\approx 3.142$

Therefore, the approximated value of π is 3.142.

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2 years ago