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leonid [27]
3 years ago
9

Name five whole numbers that can be expressed as the difference of two perfect squares. Show the math!

Mathematics
1 answer:
Sav [38]3 years ago
3 0
Answer : 25 & 16

Explanation :
25 - 16 = 9 or 5^2- 4^2 = 3
One pair is 25 and 16 and the other pair is 25 and 9.

I hope I helped u and answer your question :]
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Suppose that 5 J of work is needed to stretch a spring from its natural length of 30 cm to a length of 39 cm.
vesna_86 [32]

Answer

given,

work = 5 J

spring stretch form 30 cm to 39 cm

W = \dfrac{1}{2}kx^2

x = 0.39 - 0.30 = 0.09 m

5 = \dfrac{1}{2}k\times 0.09^2

k = \dfrac{5\times 2}{0.09^2}

k = 1234.568 N/m

a) work when spring is stretched from  32 cm to 34 cm

x₂= 0.34 -0.30 = 0.04 m

x₁ = 0.32 - 0.30 = 0.02

W = \dfrac{1}{2}k(x_2^2-x_1^2)^2

W = \dfrac{1}{2}\times 1234.568 \times (0.04^2-0.02^2)^2

W = 0.741 J

b) F = k x

  25 = 1234.568 × x

     x = 0.0205 m

     x = 2.05 cm

3 0
4 years ago
Solve for L: P = 2L + 2W
s2008m [1.1K]

Answer:

L = P/2 - W, or   L = (P - 2W)/2

Step-by-step explanation:

If P = 2L + 2W, dividing all terms by 2 yields P/2 = L + W.  Then:

L = P/2 - W, or   L = (P - 2W)/2

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1:2

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