2 years ago

Radius equal 13.2km. What is the answer??

Mathematics

1 answer:

IgorLugansk [536]2 years ago

4 0

Well the area is 13.2²π which = about 547.11 km² if that's what you're asking

You might be interested in

Write the equation of a polynomial of degree 3, with zeros 1, 2 and -1 where f(0)=2

drek231 [11]

<u>Answer:</u>

The equation of a polynomial of degree 3, with zeros 1, 2 and -1 is $x^{3}-2 x^{2}-x+2=0$

<u>Solution:</u>

Given, the polynomial has degree 3 and roots as 1, 2, and -1. And f(0) = 2.

We have to find the equation of the above polynomial.

We know that, general equation of 3rd degree polynomial is

$F(x)=x^{3}-(a+b+c) x^{2}+(a b+b c+a c) x-a b c=0$

where a, b, c are roots of the polynomial.

Here in our problem, a = 1, b = 2, c = -1.

Substitute the above values in f(x)

$F(x)=x^{3}-(1+2+(-1)) x^{2}+(1 \times 2+2(-1)+1(-1)) x-1 \times 2 \times(-1)=0$

$\begin{array}{l}{\rightarrow x^{3}-(3-1) x^{2}+(2-2-1) x-(-2)=0} \\ {\rightarrow x^{3}-(2) x^{2}+(-1) x-(-2)=0} \\ {\rightarrow x^{3}-2 x^{2}-x+2=0}\end{array}$

So, the equation is $x^{3}-2 x^{2}-x+2=0$

Let us put x = 0 in f(x) to check whether our answer is correct or not.

$\mathrm{F}(0) \rightarrow 0^{3}-2(0)^{2}-0+2=2$

Hence, the equation of the polynomial is $x^{3}-2 x^{2}-x+2=0$

3 0

2 years ago

The quotient of twice a number and 7 translate this expression

g100num [7]

Answer:

2n / 7

Step-by-step explanation:

The quotient is the result of a division

7 0

3 years ago

45 decreased by twice a number

kykrilka [37]

Answer:

22.5 i think should be your answer

4 0

2 years ago

Read 2 more answers

Which descriptions from the list below accurately describe the relationship between ABC and DEF? Check all that apply

Mamont248 [21]

A. Same shape
D. Similar

5 0

3 years ago

Read 2 more answers

2. A skydiver jumps from a plane from an altitude of 6000 ft. An observer on the ground measures the skydiver’s altitude at time

docker41 [41]

The awnser is b I hope I helped you with this question

7 0

2 years ago