2 years ago

A circle with a radius of 5 has a sector with a central angle of 9/10pi radians what is the area of the sector

Mathematics

1 answer:

Snowcat [4.5K]2 years ago

6 0

Answer:

11.25pi units² or 35.3 units² (3 sf)

Step-by-step explanation:

½×r²×theta

½ × 5² × 0.9pi

11.25pi units²

Or, 35.3 units² (3 sf)

You might be interested in

Decrease R1400 in the Ratio 7:3

goldfiish [28.3K]

Answer:

Step-by-step explanation:

It's hard to tell what you mean. I'm going to assume you mean that you want what is left to be 3/7 less.

1400 - 3/7 1400 = 1400 - 600 = 800

8 0

2 years ago

Statements showing a relationship between numbers that are not necessarily equal using the symbols >, <, ≥, ≤, or ≠ are ca

likoan [24]

3.) Inequalities.
Hope it helped.

7 0

3 years ago

Simplify and answer in scientific notation (3.5*10^4) (4*10^5)

Studentka2010 [4]

Answer: 14 x 10^9

Step-by-step explanation:

4 0

3 years ago

Six friends went out to lunch they each started with the same amount of money and they each spent 8$ they ended with a combined

ss7ja [257]

Answer:

Step-by-step explanation:

4 0

3 years ago

Find the global maximum and global minimum values (if they exist) of x 2 + y 2 in the region x + y = 1. If there is no global ma

Grace [21]

Given that $x+y=1$ , we have $y=1-x$ , so that

$f(x,y)=x^2+y^2\iff g(x)=x^2+(1-x)^2$

Take the derivative and find the critical points of $g$ :

$g'(x)=2x-2(1-x)=4x-2=0\implies x=\dfrac12$

Take the second derivative and evaluate it at the critical point:

$g''(x)=4>0$

Since $g''$ is positive for all $x$ , the critical point is a minimum.

At the critical point, we get the minimum value $g\left(\frac12\right)=f\left(\frac12,\frac12\right)=\frac12$ .

5 0

3 years ago