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3 years ago

What’s the approximate circumference of a circle with radius 10 feet?

Mathematics

2 answers:

Elis [28]3 years ago

8 0

Answer: C≈62.83ft

Step-by-step explanation:

simply take your radius and times it by 2 and you get 20. then times twenty by pi.

KonstantinChe [14]3 years ago

6 0

Approximate circumference of circle is $20\pi$ feet that is 62.8 feet.

<u>Solution :</u>

Need to determine approximate circumference of a circle with radius as 10 feet.

So given that radius of circle = 10 feet

Circumference of circle is product of constant $2\pi$ with radius of circle r.

=> Circumference of circle = $2\pi r$

On substituting the value of radius, we get circumference

So circumference of a circle of radius 10 feet = $2\pi \times 10 = 20\pi$

Taking $\pi$ = 3.14, we get circumference = 20 x 3.14 = 62.8 feet

Hence approximate circumference of circle is $20\pi$ feet that is 62.8 feet.

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Mr. Jones's prescription calls for 1.04 tablets per day. Based on this information, how many tablets should Mr. Jones take per day? a) 1.25 O b) 1.5 c) 1 O d) 2

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3 years ago

What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?

Natasha2012 [34]

Answer:

$x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$ are zeroes of given quadratic equation.

Step-by-step explanation:

We have been a quadratic equation:

$2x^2-10x-3$

We need to find the zeroes of quadratic equation

We have a formula to find zeroes of a quadratic equation:

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

General form of quadratic equation is $ax^2+bx+c$

On comparing general equation with b given equation we get

a=2,b=-10,c=-3

On substituting the values in formula we get

$D=\sqrt{(-10)^2-4(2)(-3)}$

$\Rightarrow D=\sqrt{100+24}=\sqrt{124}$

Now substituting D in $x=\frac{b^2\pm\sqrt{D}}{2a}$ we get

$x=\frac{(-10)^2\pm\sqrt{124}}{2\cdot 2}$

$x=\frac{100\pm\sqrt{124}}{4}$

$x=\frac{100\pm2\sqrt{31}}{4}$

$x=\frac{50\pm\sqrt{31}}{2}$

Therefore, $x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$

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3 years ago

Read 2 more answers

What is 2 + 5 - 2 x 9 = ? The person who gets it right, I will make you brainliest.

Minchanka [31]

PEMDAS
Multiplication: 2 + 5 - 18=
Addition: 7-18=
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Answer=-11

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

The quotient of a number and 4 is greater than or equal to 39

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