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Kryger [21]
3 years ago
14

Solve the following question using the elimination method :)

Mathematics
1 answer:
pochemuha3 years ago
8 0
The one above me is correct
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a cube with side lengths s has a volume of 64 cubic units. what is the length of the side of the cube?
Mademuasel [1]

Answer:

4 units

Step-by-step explanation:

volume of cube = 64 cubic units

\therefore \:  {s}^{3}  = 64 \\  \\  \therefore \:  {s}^{3}  =  {4}^{3}  \\  \\ \therefore \:  {s}=  {4} \: units

6 0
3 years ago
the pie factory sells an apple pie with a diameter of 16 in. for $10.99. What's the approximate cost per square inch of surface
AURORKA [14]
I'm going to assume the crust covered by the dosenot matter because the total surface area cannot be found without the depth of the pie.

So the surface are is the area of the top of the pie, the top of the pie is circular and is equal to 2\pir²

The diameter is the sum of 2 radii, hence r=8

D=12
  = 2r =12
r=8

With the raduis the area can be found
A= 2\pir²
A=2\pi8² 
A=2(64)\pi
A=128\pi

If the pie cost 10.99, the cost per inch can be found by dividing the area by cost

cost/inch =128 \pi/10.99
cost/inch =11.64\pi
               = 11.64(3.14)
               = 36.57

The pie costs 36 cents per square inch
5 0
3 years ago
Can someone answer this question please
Grace [21]

the first one is correct

4 0
2 years ago
Read 2 more answers
Need help please<br>ansewer fast
Debora [2.8K]
14) 6.20

16) 9.1
 I hope that helps cuz
5 0
3 years ago
Read 2 more answers
The measure of the exterior angle of the triangle is what degree?
RSB [31]

Answer:

92°

Step-by-step explanation:

By exterior angle theorem:

(2x - 2) \degree = x \degree + 45 \degree \\  \\ (2x - 2 - x) \degree = 45 \degree \\  \\ (x - 2) \degree = 45 \degree \\  \\ (x - 2)  = 45 \\  \\ x = 45 + 2 \\  \\ x = 47 \\  \\ (2x - 2) \degree  = (2 \times 47 - 2)\degree  \\  \\ (2x - 2) \degree  = (94 - 2)\degree   \\  \\ (2x - 2) \degree  = 92\degree   \\  \\ measure  \: of  \: the  \: exterior \:  angle \\  = 92 \degree

4 0
3 years ago
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