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3 years ago

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David measures a line to be 4.87 in long. If the actual measurement is 5 in, find David's relative error to the nearest hundredt

h.
Ill give brainilest to whoever helps

2 answers:

ahrayia [7]3 years ago

7 0

Answer:

he was suppost to round up

Step-by-step explanation:

Studentka2010 [4]3 years ago

7 0

Answer:

measure value - actual value

Step-by-step explanation:

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How can I use the percent equation???Ex.what number is 40% of 500???and can u solve this one,too.:45 is 25% of what number???THA

HACTEHA [7]

I've been waiting for someone to ask this question. It's one of my favorite questions to answer.

percent means out of 100 so 1% = 1/100 and 40%=40/100 or 1/25
so for percent of a number, 'of' means multiply so 40% of 500= 40/100 times 500 or 20000/100 or 200

if you multiply a fraction by its recipricol (the number fliped upside down) the you will get 1 so if you multiply 1/2 by 2/1 then you will get 1

thus
percent is out of 100 so 1%=1/100 25%=25/100
if you represent 45 out of something as 45/x then you multiply it by the reciprocal of the fraction that is supposed to be equal (1/2 =2/4) then you will get 1
so 45/x times reciprocal of 100/25 then you will get 1/1 or 4500/25x
so you divide to find x and get 180
so 45 is 25% of 180

The following is extra
   as stated above 'of' can be taken as multiply so
   45 is 25% of 180 can be rewriten as
   45=25/100 times 180
   but we don't know that 180 is the answer so we replace it with x then       solve for x

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mash [69]

Answer:

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Step-by-step explanation:

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What is 4/5 as a decimal and what is 4/5 as a percent representation

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3xy + 5x + 2 + 3y +x + 4

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3xy+6x+3y+6 is the answe

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A. Find the first and second derivative of the following function in terms of the parameters c1 and c2.

defon

Answer:

Linear second-order differential equation F(x, y, y′, y″) = 0

y¹¹( -3 x⁴ )+ y¹12 x³ - 12 x² y= 0

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given differential equation

y = c₁x + c₂x⁴ ...(i)

Differentiating equation (i) with respective to 'x', we get

y¹ = c₁(1) + c₂ ( 4 x³ ) ...(ii)

Differentiating equation (ii) with respective to 'x', we get

y¹¹ = c₂ ( 12 x² )

$C_{2} = \frac{y^{11} }{12 x^{2} }$ ...(a)

<u><em>Step(ii)</em></u>:-

Substitute (a) in equation (ii)

$y^{l} = C_{1} + (\frac{y^{ll} }{12x^{2} } ) (4 x^{3} )$

$C_{1} = y^{l} - (\frac{y^{ll} }{12 x^{2} } ) (4 x^{3} )$ ...(b)

$C_{2} = \frac{y^{11} }{12 x^{2} }$

<u><em>Step(iii):</em></u>-

$y = (y^{l} - (\frac{y^{ll} }{12 x^{2} } ) (4 x^{3} ) x + \frac{y^{ll} }{12 x^{2} } x^{4}$

12 x² y = (y¹12 x³ - 4 x⁴ y¹¹) + x⁴ y¹¹

x⁴ y¹¹ - 4 x⁴ y¹¹ + y¹12 x³ - 12 x² y= 0

y¹¹( -3 x⁴ )+ y¹12 x³ - 12 x² y= 0

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3 years ago