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Alex17521 [72]
3 years ago
9

Solve simultaneously 3x + 4y = 2 and 4x - y = 9

Mathematics
1 answer:
Contact [7]3 years ago
3 0

Answer:

x=2

y= -1

Step-by-step explanation:

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The legs of a right triangle have lengths of 4 and 5 units. Find the length of the hypotenuse
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A^2 + b^2 =c^2 ; c = hypotenuse, a and b: legs

4^2 + 5^2 = c^2
16 + 25 =  c^2
41 =c^2
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Ms.nikkel wants to divide her class of 23 students into 4 equal teams. Is this reasonable?Why or why not?
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Simplify the expression to a + bi form:<br> (11+8i)-(-5+4i)<br><br> PLEASE HELP
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Step-by-step explanation:

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4 0
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Give the first five terms of the sequence <br> an=2n2+2
Eddi Din [679]

Answer:

The answer to your question is 3, 9, 19, 33, 51

Step-by-step explanation:

Sequence                           an = 2n² + 1

1st term                               a₁ = 2(1)² + 1 = 2(1) + 1 = 2 + 1 = 3

2nd term                              a₂ = 2(2)² + 1 = 2(2)² + 1 = 2(4) + 1 = 8 + 1 = 9

3rd term                             a₃ = 2(3)² + 1 = 2(3)² + 1 = 2(9) + 1 = 18 + 1 = 19

4rd term                              a₄ = 2(4)² + 1 = 2(4)² + 1 = 2(16) + 1 = 32 + 1 = 33

5th term                              a₅ = 2(5)² + 1 = 2(5)² + 1 = 2(25) + 1 = 50 + 1 = 51

4 0
3 years ago
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