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kramer
3 years ago
12

Help w algebra problem!!!

Mathematics
1 answer:
Fantom [35]3 years ago
6 0

Answer:

Step-by-step explanation:

If the circumference of the circle is  x cm the perimeter of the square will be 38-x cm.

The area of the square = (38-x)^2.

The radius  r of the circle = circumference /2π =  x / 2π.

The area of the circle = πr^2 = π * (x / 2π)^2

=  x^2/ 4π.

So total area A = (38 - x)^2 + x^2/4π

A = 1444 - 76x + x^2 + x^2/ 4π

A = x^2 - 76x + 0.07958x^2 + 1444

A =  1.07958x^2 - 76x + 1444

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X+1/2(x-4)=1/2x+6(x-2)
Andrej [43]

Answer:

B) 1

Step-by-step explanation:

x+1/2(x-4)=1/2x+6(x-2)

x+1/2x-4/2=1/2x+6x-12

x+1/2x-1/2x-2=6x-12

x-2=6x-12

x-6x-2=-12

-5x-2=-12

-5x=-12+2

-5x=-10

5x=10

x=10/5

x=2

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3 years ago
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marshall27 [118]
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3 years ago
If the circumference of a circle is about 15.4 cm, estimate to the nearest whole number the diameter of the circle
nasty-shy [4]

The nearest whole number the diameter of the circle is 5.0 cm.

<u>Given the following data:</u>

  • Circumference of a circle = 15.4 cm

To estimate to the nearest whole number the diameter of the circle:

In this exercise, you're required to solve for the diameter of a circle and round up its value to the nearest whole number.

<h3>How to calculate the circumference of a circle.</h3>

Mathematically, the circumference of a circle is given by the formula:

Circumference = \pi D

<u>Where:</u>

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Making D the subject of formula, we have:

D =\frac{circumference}{\pi}

Substituting the given parameters into the formula, we have;

D =\frac{15.4}{3.142}

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To the nearest whole number:

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Read more on circumference of a circle here: brainly.com/question/14478195

6 0
2 years ago
Please answer these questions I will mark brainliest
igor_vitrenko [27]
1. C

2. A

3. A

i’m pretty sure for 1,2. 3 i’m a little iffy but i think it’s A bc “homogenizing”
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3 years ago
The number of men in a tour group is 15 times the number of women. If there are 48 people in the group, how many are men?
Nata [24]
M + w = 48
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m = 15w
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m = 45 <==== there r 45 men
8 0
3 years ago
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