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Ierofanga [76]
3 years ago
15

Can you help just answer by putting

Mathematics
2 answers:
cestrela7 [59]3 years ago
7 0

4×102

4×(100 + 4)

400 + 8

408

Llana [10]3 years ago
3 0
Box 1. 4*102
Box 2. 4*(100+8)
Box 3. 400+8
Box 4. 408
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Use the Laplace transform to solve differential equation
Inessa [10]
Using Laplace transform we have:L(x')+7L(x) = 5L(cos(2t))sL(x)-x(0) + 7L(x) = 5s/(s^2+4)(s+7)L(x)- 4 = 5s/(s^2+4)(s+7)L(x) = (5s - 4s^2 -16)/(s^2+4)
=> L(x) = -(4s^2 - 5s +16)/(s^2+4)(s+7) 
now the boring part, using partial fractions we separate 1/(s^2+4)(s+7) that is:(7-s)/[53(s^2+4)] + 1/53(s+7). So:
L(x)= (1/53)[(-28s^2+4s^3-4s^2+35s-5s^2+5s)/(s^2+4) + (-4s^2+5s-16)/(s+7)]L(x)= (1/53)[(4s^3 -37s^2 +40s)/(s^2+4) + (-4s^2+5s-16)/(s+7)]
denoting T:= L^(-1)and x= (4/53) T(s^3/(s^2+4)) - (37/53)T(s^2/(s^2+4)) +(40/53) T(s^2+4)-(4/53) T(s^2/s+7) +(5/53)T(s/s+7) - (16/53) T(1/s+7)
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3 years ago
If the surface area is 6.8 ft², what is the area of each triangle?
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Answer is 1.13 ft EX
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3 years ago
One eighth of a number is ten less than one third of the number. Find the number.
GarryVolchara [31]
X/8 - 10 = x/3

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find a common denominator and subtract these fractions

8x/24 - 3x/24 = -10

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multiply both sides by 24

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divide both sides by 5

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the number is -48
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3 years ago
Read 2 more answers
G(a) = 3a + 2<br> f(a)=2a-4<br> Find (g/f)(3)
Basile [38]

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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

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