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xxTIMURxx [149]
3 years ago
6

Evaluate the function when x=1 f(x) = 1/2x -1

Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

1/2

Step-by-step explanation:

1/2*1*1= 1/2

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If 3/4(x) is 12, then what is x?
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Answer:

16

Step-by-step explanation:

The equation is 3/4x=12, so you would just divide 12 by 3/4 to get 16 as x

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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}

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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

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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

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3 0
3 years ago
Find the measure of each interior angle of the regular polygon
jek_recluse [69]
I believe 60 degree is your answer
4 0
3 years ago
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For f(x) = 2x – 3 find f(-1/4)
Firdavs [7]

9514 1404 393

Answer:

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Step-by-step explanation:

Put the argument where the variable is and do the arithmetic.

  f(-1/4) = 2(-1/4) -3 = -1/2 -3

  f(-1/4) = -(3 1/2)

5 0
3 years ago
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