2 years ago

¿Cuál es el área de un círculo cuya circunferencia mide 7π cm?

Mathematics

1 answer:

Andrej [43]2 years ago

8 0

Answer:

r = 1.4927053303605 cm

C = 9.3789441996695 cm

A = 7 cm²

Step-by-step explanation:

r = radius

C = circumference

A = area

π = pi = 3.1415926535898

√ = square root

You might be interested in

If K = {(x, y)|x - y = 5}, find the corresponding range of y for the domain {0, 2, 4}

denis23 [38]

X - y = 5
y = x - 5

For domain {0, 2, 4}, range = {0 - 5, 2 - 5, 4 - 5} = {-5, -3, -1}

5 0

2 years ago

If AP 10 - 12. what is the perimeter of quadrilateral TAEO (a) 56 (b)64 (c)72 (d)76

BlackZzzverrR [31]

Husofjwiebd9ks ueijddlonf durnkofbjus yuebejuiiiiiiiiijjd dijdjdjdnsjduwjwuwhw

4 0

2 years ago

The ratio of the number of people who own a cat to the number of people who own a dog is 5:7. If there are 12 more people who ow

topjm [15]

Answer:

30 people own a cat

Step-by-step explanation:

6 0

3 years ago

Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t

Tresset [83]

Answer: The volume of largest rectangular box is 4.5 units.

Step-by-step explanation:

Since we have given that

Volume = $xyz$

with subject to $x+2y+3z=9$

So, let $z=\dfrac{9-x-2y}{3}$

So, Volume becomes,

$V=xyz\\\\V=xy(\dfrac{9-x-2y}{3})\\\\V=\dfrac{9xy-x^2y-2xy^2}{3}$

Partially derivative wrt x and y we get that

$9-2x-2y=0\implies 2x+2y=9\\\\and\\\\9-x-4y=0\implies x+4y=9$

By solving these two equations, we get that

$x=3,y=\dfrac{3}{2}$

So, $z=\dfrac{9-x-2y}{3}=\dfrac{9-3-3}{3}=\dfrac{3}{3}=1$

So, Volume of largest rectangular box would be

$xyz=3\times \dfrac{3}{2}\times 1=\dfrac{9}{2}=4.5$

Hence, the volume of largest rectangular box is 4.5 units.

4 0

3 years ago

Use the diagram to complete these statements. If m26 = 50°, then m2 = 50° If m 25 = 70°, then m = 70 What is the measure of 22?

Thepotemich [5.8K]

Answer: 1,3,60°

Step-by-step explanation:

4 0

3 years ago