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Alekssandra [29.7K]
3 years ago
8

If M = 5x2 + 7x - 4 and N = -3x2 - 4x + 5, then M - N equals

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0

Answer

8x^2+11x-9

Step-by-step explanation:

That is the answer :))

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6/10 
300/500
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Plot the following points on a xy-plane.<br> (5,2) , (-2, 1) , (-1,-3)
aliya0001 [1]

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Step-by-step explanation:

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1. Write your answer using only<br> positive exponents.<br><br> (3ab^3c^-1)^3
marishachu [46]

Answer:

(\frac{{3ab^{3}}}{c^{1}} )^{3}

Step-by-step explanation:

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Evaluate the integral. 3 2 t3i t t − 2 j t sin(πt)k dt
sveta [45]

∫(t = 2 to 3) t^3 dt

= (1/4)t^4 {for t = 2 to 3}

= 65/4.

----

∫(t = 2 to 3) t √(t - 2) dt

= ∫(u = 0 to 1) (u + 2) √u du, letting u = t - 2

= ∫(u = 0 to 1) (u^(3/2) + 2u^(1/2)) du

= [(2/5) u^(5/2) + (4/3) u^(3/2)] {for u = 0 to 1}

= 26/15.

----

For the k-entry, use integration by parts with

u = t, dv = sin(πt) dt

du = 1 dt, v = (-1/π) cos(πt).


So, ∫(t = 2 to 3) t sin(πt) dt

= (-1/π) t cos(πt) {for t = 2 to 3} - ∫(t = 2 to 3) (-1/π) cos(πt) dt

= (-1/π) (3 * -1 - 2 * 1) + [(1/π^2) sin(πt) {for t = 2 to 3}]

= 5/π + 0

= 5/π.

Therefore,

∫(t = 2 to 3) <t^3, t√(t - 2), t sin(πt)> dt = <65/4, 26/15, 5/π>.

3 0
3 years ago
Need help with finding X
Zarrin [17]

Answer:

Step-by-step explanation:

5 0
2 years ago
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