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Tcecarenko [31]
3 years ago
15

What is the circumference of a circle with a radius of 56 feet? feet (Use 3.14 for Pi.)

Mathematics
2 answers:
Troyanec [42]3 years ago
8 0

Answer:

351.68

Step-by-step explanation:

c = 2πr

c = 2(3.14)(56)

c = 6.28(56)

c = 351.68

Greeley [361]3 years ago
6 0

Answer:

Step-by-step explanation:

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If f(x) = 2x^3 - 14x^2 + 38x -26 and x-1 is a factor of f(x) find all of the zeros of f(x) algebraically.
Anestetic [448]

Answer:

Step-by-step explanation:

First confirm that x = 1 is one of the zeros.

f(1) = 2(1)^3 - 14(1)^2 + 38(1) - 26

f(1) = 2 - 14 + 38 - 26

f(1) = -12 + 38 = + 26

f(1) = 26 - 26

f(1) = 0

=========================

next perform a long division

x -1  || 2x^3 - 14x^2 + 38x - 26 || 2x^2 - 12x + 26

          2x^3 - 2x^2

          ===========

                    -12x^2 + 28x

                     -12x^2 +12x

                     ==========

                                  26x -26

                                  26x - 26

                                 ========

                                      0

Now you can factor 2x^2 - 12x + 26

                                 2(x^2 - 6x + 13)

The discriminate of the quadratic is negative. (36 - 4*1*13) = - 16

So you are going to get a complex result.

x = -(-6) +/- sqrt(-16)

     =============

                 2

x  = 3 +/- 2i

f(x) = 2*(x - 1)*(x - 3 + 2i)*(x - 3 - 2i)

The zeros are

1

3 +/- 2i

8 0
3 years ago
The perimeter of an equilateral triangle is 13 inches more than the perimeter of a​ square, and the side of the triangle is 6 in
ss7ja [257]

Answer:

The side of the triangle is 11 inches

Step-by-step explanation:

please kindly see the attached files for explanation

8 0
3 years ago
HELP IM DESPRITE
scZoUnD [109]

Answer:

8

Step-by-step explanation:

45.5 + 15.5x < 175

15.5x < 129.5

x < 8.35

Answer: 8

5 0
2 years ago
4x + 2y =10<br><br> 4x -2y = -10<br> perpednicular or paralell
Alina [70]

Answer:

the answer is perpendicular I think :)

6 0
3 years ago
The volume of a cube is given by s^3 and the total surface area of a cube is given by 6s^2 , where s is the side length of the c
saw5 [17]

Answer:volume= 125cu.in

Surface area=150sq.in


Step-by-step explanation:


6 0
3 years ago
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