2 years ago

Find the area of a circle with a radius of 10 meters. Use a 3.14. The area of the circle is approximately

Mathematics

1 answer:

Shalnov [3]2 years ago

7 0

Answer:

314

Step-by-step explanation:

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Steven bought 3 mirrors. He paid a total of $264. Which equation can be used to find the amount he paid for each mirror?

musickatia [10]

Answer:

3÷264

Step-by-step explanation:

4 0

3 years ago

Im dum on this but smart on other things look at points too...

Over [174]

Step-by-step explanation:

Whole numbers = Natural numbers + "0"

Integers = Whole numbers + Negative counterparts

Since the set do contains negative numbers, only Rational numbers and Integers are correct. (D)

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2 years ago

Descried how to derive the quadratic formula from a quadratic equation in standard form

Aleks [24]

Answer:

The standard form of a quadratic equation is:

$ax^2+bx+c=0$ , $a\neq 0$

Quadratic Formula Derivation:

$ax^2+bx+c=0\\$

$x^2+\frac{b}{a}x+\frac{c}{a} =0$

$x^2+\frac{b}{a}x = -\frac{c}{a}$

Completing the Square:

$x^2+\frac{b}{a}x +\frac{b^2}{4a^2} = \frac{b^2}{4a^2}-\frac{c}{a}$

$( x+\frac{b}{2a} )^2 = \frac{b^2-4ac}{4a^2}$

Square Root property:

$x+\frac{b}{2a} = \pm \sqrt{ \frac{b^2-4ac}{4a^2}}$

$x = -\frac{b}{2a} \pm { \frac{\sqrt {b^2-4ac}}{2a}}$

$x = \frac{-b\pm\sqrt{b^2-4ac}} {2a} }$

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3 years ago

Sam had monkeys and lions in his zoo, He counted legs one day to discover that he could see 76 feet on the ground. He knew that

cricket20 [7]

If he counts 76 feet, that means there’s 38 animals in total, because animals have 2 feet. 76/2=38

Hope that helps..!

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3 years ago

Solution for 3^3x=9^x+4

Aliun [14]

3^3+9=77 if I'm wrong I'm sorry I just guess

3 0

3 years ago