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allsm [11]
3 years ago
13

Simplify the expression 4(x+y) + 3y

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

4x + 7y

Step-by-step explanation:

4(x+y) + 3y

Distribute

4x+ 4y+ 3y

add like terms

4x + 7y

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Answer:B

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What is the solution of the inequality -6x-17≥8x+25
Aleksandr-060686 [28]
-6x -17> 8x + 25.
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5 0
3 years ago
What’s the answer !?
svetoff [14.1K]

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8

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5 0
3 years ago
Evaluate the integral. (Use C for the constant of integration.) <br> cos(x) (8 + 7 sin^2(x)) dx
UNO [17]

Answer: 8 \sin x +7(\dfrac{\sin^3x}{3})+C

Step-by-step explanation:

Consider \int \cos(x) (8+7 \sin^2(x)) \, dx

Substitute  t= sinx

then dt = cos x dx

\int \cos(x) (8+7 \sin^2(x)) \, dx = \int (8+7t^2)dt\\\\ =8t+7(\dfrac{t^3}{3})+C

[\int x^ndx=\dfrac{x^{n+1}}{n+1}+C]

=8 \sin x +7(\dfrac{\sin^3x}{3})+C

Hence, \int \cos(x) (8+7 \sin^2(x)) \, dx=8 \sin x +7(\dfrac{\sin^3x}{3})+C

5 0
3 years ago
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