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alexgriva [62]
3 years ago
7

What is the approximate difference in the circumference of a circle with a radius of 4 ft and the circumference of a circle with

a radius of 6 ft?
Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0

Answer: 12.57 ft

Step-by-step explanation:

Circumference of circle with radius of 4ft.

= π * radius * 2

= 22/7 * 4 * 2

= 25.14 ft

Circumference of circle with radius of 6ft.

= 22/7 * 6 * 2

= 37.71 ft

Difference = 37.71 - 25.14

= 12.57 ft

You might be interested in
Area of a Triangle
jek_recluse [69]

Answer:

3.51 (round to the nearest hundreds)

Step-by-step explanation:

PART A

slope of the line passing through AC : (6-1)/(1-2) = 5/-1 = -5

equation of the line passing through B and perpendicular to AC:

y-3 = 1/5(x-3)

y-3 = 1/5x -3/5

y = 1/5 x - 3/5 + 3

y = 1/5 x + (-3+15)/5

y = 1/5 x + 12/5

PART B

line that passes through the points A and C

y-1 = -5(x-2)

y = -5x+10 + 1

y = -5x + 11

Interception of the lines

y = 1/5x + 12/5

y = -5x + 11

-5x + 11 = 1/5x + 12/5

-25x +55 = x + 12

26x = 43

x = 43/26

y = -5(43/26) + 11

y= -215/26 + 11

y = (-215+286)/26 = 71/26

D (1.65, 2.73)

PART C

AC = \sqrt{(1-2)^2 + (6-1)^2} = \sqrt{1 + 25} = \sqrt{26} = 5,09902

BD = \sqrt{(3-1.65)^2 + (3-2.73)^2} = 1,376735

PART D

AREA = (5,09902 * 1.376735)/2 = 3,509999

8 0
3 years ago
F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the expression that represents f(x)+h(x)
Ostrovityanka [42]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

f(x) = x + 7

h(x) =  - 2x + 1

Add them up :

f(x) + h(x) = x + 7  - 2x + 1 \\

Collect like terms

f(x) + h(x) =  - x + 8

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

7 0
3 years ago
Steve have 9 different shirts<br> 5 different hats<br> 4 different scarves <br> On Monday
Paraphin [41]

Answer:

180 combinations

Step-by-step explanation:

6 0
3 years ago
Please I need help ASAP!!!!!!!
murzikaleks [220]

Answer:

D

Step-by-step explanation:

we are given 54x + 4.99x + 7.95

we can simplify like terms

58.99x + 7.95

It is D because in C it says "the actual delivery charge is $58.98" which is not true. It states in the question that it is "$7.95 for delivery", so it has to be D

7 0
3 years ago
Can some one help me answer all ten questions they are due at 10:00 I will give out brainly. Part 2
Jlenok [28]

Answer:

solve for x

4x-6=26

4x=26+6

x=32/4

x=8

area of rectangle=l*b

=26*14

=364

area of triangle=b*h/2

=18.4*20.4/2

=375.36/2

=187.68 m^2

for another side of a triangle

(18.4)^2+(20.4)^2=c^2

338.56+416.16=c^2

\sqrt{754.72}=c

27.47=c

27.5=c

now, perimeter of triangle=a+b+c

=27.5+18.4+20.4

=66.3 m^2

radius=diameter/2

=26/2

=13 ft

diameter=26 ft

circumference=2πr

=2*3.14*13

=81.64

Area of a circle=πr^{2}

=3.14*(13)^2

=3.14*169

=530.66 ft^2

Step-by-step explanation:

6 0
3 years ago
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