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Elina [12.6K]
3 years ago
10

Could someone help me with 4 pls nd thanks

Mathematics
1 answer:
NISA [10]3 years ago
4 0

Answer:

6.00

6.75

Step-by-step explanation:

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What's the whole number between 3.75 and the square root of 36?
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Find the ARE of the figure
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First, break up the shapes into parts. The first one you see is 7 by 4 rectangle on the top.
A=l*w
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Now the triangle to the left
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Now all you got left is the trapezoid, which area's formula is:
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3 years ago
Solve the following initial-value problem: cos(x) dy/dx + sin(x) y - 1 = 0, y(0) = 1
Akimi4 [234]

Answer:

y= x + cosx

Step-by-step explanation:

cosx\frac{\mathrm{d}y }{\mathrm{d} x}+(sinx)y-1=0\\cosx\frac{\mathrm{d}y }{\mathrm{d} x}+(sinx)y=1\\\frac{\mathrm{d}y }{\mathrm{d} x}+(tanx)y=secx

now equation is in linear differential form

finding integrating factor;

I.F. = e^{\int tanx dx} = e^{ln\ secx} = secx

y=\frac{1}{I.F}(\int Q dx + c)

y=\dfrac{1}{secx}(\int secx dx + c)

y=\int  dx + c(cosx)\\y= x + c(cosx)

using  y(0) = 1

1 = 0 +  c(cos 0)

c = 1

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y= x + cosx

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1. 395.8

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