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Alchen [17]
3 years ago
6

Can someone help me? It's urgent and thank you!

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0

Answer:

35 or A

Step-by-step explanation:

This is a combinations problem because the order doesn't matter (it's a council, not like president and v.p.). C(7, 3) is 7!/(4!*3!) = 7*6*5/3*2 = 35. Hope this helps! :)

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Make a the subject of the formula:<br> 10a + 9b = 3c
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Answer:

a = \frac{3c - 9b }{10}

Step-by-step explanation:

10a + 9b = 3c

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a = \frac{3c - 9b }{10}

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The harmonic motion of a particle is given by f(t) = 2 cos(3t) + 3 sin(2t), 0 ≤ t ≤ 8. (a) When is the position function decreas
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Solve the system of equations using the linear combination method. {c+d=17c−d=3 Enter your answers in the boxes
Natalija [7]

Solving the system of equations, we get value of c= 10 and value of d= 7

Step-by-step explanation:

Solving the system of equations:

c+d=17\\c-d=3

Let:

c+d=17\,\,\,eq(1)\\c-d=3\,\,\,eq(2)

Adding eq(1) and eq(2)

c+d=17\\c-d=3\\------\\2c+0d=20\\c=20/2\\c=10

So, value of c = 10

Now putting value of c in equation 1 to find value of y

c+d=17\\10+d=17\\d=17-10\\d=7

So, value of d =7

Solving the system of equations, we get value of c= 10 and value of d= 7

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

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