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igor_vitrenko [27]
3 years ago
6

Is the degree acute, right, obtuse, or straight??

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
8 0
The degree is a obtuse
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Please can somebody help me
Elena-2011 [213]

Answer:

Rectangle: bh or l · w

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2 years ago
Find the solution of the differential equation that satisfies the given initial condition. (du)/(dt) = (2t + sec^2 t)/(2u), u(0)
Delicious77 [7]
Ah okay so in differential equations you usually want the top variable isolated. To do this, multiply by dt and 2u and you get
2udu = 2t + { \sec(t) }^{2} dt
Now just integrate both sides. The integral of 2u with respect to u is u². The integral of (2t + sec²(t) with respect to t is t² + ∫sec²(t)dt. The last part is just tan(x) because d/dt(tan(t)) is sec²(t) so just integrating gets us back. Now we have
{u}^{2}   + c =  {t}^{2}  +  \tan(t)  + k
Where c and k are arbitrary constants. Subtracting c from k and you get
{u}^{2}  =  {t}^{2}  +  \tan(t)  + b
Where b is another constant. To find b, just plug in u(0) = -1 where u is -1 and t is 0. This becomes
1 =  \tan(0)  + b
tan(0) is 0 so b = 1. Take the plus or minus square root on both sides and you finally get
u =  \: { {t}^{2} }  +  \tan(t)  + 1
But Brainly didn't let me do but juat remember there is a plus or minus square root on the left.
3 0
3 years ago
Write<br> in function notation: h=x-2
grin007 [14]

Answer:

h(x) = x - 2

Step-by-step explanation:

h(x) = x - 2

6 0
3 years ago
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If f(x)= 6x+7, determine the value of f(-5)
Juliette [100K]
You would substitute or plug in -5 wherever there is an x in the equation.

f(-5) = 6(-5) + 7
f(-5)= -30 + 7
f(-5) = -23
5 0
3 years ago
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Given a circle with a diameter of 4, which equation expresses pi as the ratio of the circumference of a circle to its diameter
natulia [17]

is there any answer choices

6 0
2 years ago
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